8月 312015

The second day of COSCUP 2015 was August 16, Sunday. Since we had FreedomKnight and zerng07 at the booth, and we did not find very intersting talks in the early morning, tonghuix and I gave ourselves a bit more rest and did not get up quite early. We both found the talks this year were not as attractive as last year. Part of the reason might be that this year’s theme “Open Culture” is kind of too general and it is not easy to talk about it. Or in a sense it is align with COSCUP’s philosoph “more social than tech”, which means it is more a chance of letting open source people to meet than diving into specific technical topics.

Around the booth we found some interesting swags that might be useful for future Fedora events. One is the retractable network cable as shown in the middle figure above. Such cables were distributed in COSCUP previously as gifts. I think it is quite nice because: 1) it is so useful that one can start to use it directly at the venue; 2) the central circular part is perfect for branding logo etc.; 3) it is not expensive and can be cheap with mass production. Another nice swag is shown in the rightmost figure above, a toy moe girl (optionally, with a toy laptop). As soon as she appeared on our neighboring booth, a crowd of people and cameras came around the booth. Westerners might not understand, but moe culture is quite popular among East Asia countries, and it is getting mainstream. For example, in Taiwan you can find quite a few moe girls on various posters in public. Besides, ".moe" has become a registrable top-level domain name. Since she is so eye-catching, I guess it is worth trying to make one for Fedora. Regarding design, the Fedora moe girl might be a good starting point.

At the booth I also discussed with FreedomKnight and zerng07 about Fedora community development. zerng07 is getting busier with his work, and they are trying to develop a new ambassador. It seems that currently the Taiwan contributors prefer to use the Facebook group of Fedora Chinese community for discussion. I encourage them to keep an eye on our mailing lists and attend weekly IRC meetings, where activities are more visible to the Chinese community and the whole Fedora community. I also encourage them to go outside for better communication and cooperation. When the local community grows strong enough, Taiwan can be a good candidate for FUDCon APAC.

At around 15:00 PM, almost all attendees gathered into the large hall to listent to jserv‘s last speech “Retrospect on Taiwan Open Source Ecosystem”. jserv is a long term open source contributor in Taiwan, and he has contributed talks to COSCUP for all the ten years. In the morning I caught up with his experience sharing of open source in education. To encourage new contributors, he decided this talk to be his last speech in COSCUP. In the talk, he introduced the history of open source development in Taiwan and showed quite a few impressive early projects by Taiwan open source contributors. He also motivated the young generation in Taiwan to contribute more to open source in the world.

After that was the lightning talk session. In COSCUP, a lightning talk can be not a “talk” at all, because all kinds of performance are also welcome. I had learnt the rule for a while, but this time I finally had the chance to hear an ocarina show as a lightning talk by a COSCUP volunteer! Why ocarina show? Simply because others learnt that he can play ocarina during face-to-face discussion.

At last, after a short closing speech from the lead organizer came the group photo session. All volunteers were invited on stage. An unmanned aerial vehicle (UAV) was used for taking photos, which was really cool. By the way it was also cool when the UAV flew over your head!

All in all, I enjoyed the two days of COSCUP very much. Looking into the future, I believe COSCUP can continue to be a great chance for Fedora Chinese community to gather up. Besides, non-Chinese contributors are also welcome to join to take the opportunity to meet face-to-face and get things done.

8月 282015

A few days ago I had the chance to attend COSCUP in Taiwan for the second time. This time I was lucky to get travel subsidy from Fedora APAC’s event budget. Below is my event report for day 1 (Aug 15, Saturday).

The venue of COSCUP 2015 is Academia Sinica, which is the same as in last year. But this time I stayed in a hotel not quite near the venue, sharing room with another Fedora ambassador tonghuix. So in the morning of day 1, we got up early and caught the Taipei MRT (Massive Rapid Transit) train. For the last mile to the venue, we took a taxi with FreedomKnight, a Fedora ambassador in Taiwan, and his girlfriend, who we happened to meet near our destination MRT station.

We arrived at the venue at about 8:30 AM, and it was about to allow registration. Quite a lot of attendees had already queued up before the gate. Shortly after that we registered by scanning the QR code. Then we looked for the booth location and set up the booth. FreedomKnight brought some Fedora 21 DVDs and I brought the badge reel which tonghuix carried from Beijing to Taipei. I tried a few ideas of placing these DVDs and settled down to a “4F” form. People started to visit our booth before we finished the preparation!

I spent the whole morning around our booth, talking with interested people about Fedora. Some of them were not familiar with Fedora, so I introduced to them that Fedora is an Linux distro similar as Ubuntu and openSUSE, but with special stress on our “Four Foundations” (aka 4F). Quite a few visitors had previous experience with Fedora, or current work experience with testing their company products on (somewhat old releases of) Fedora. I talked about Fedora.next with them and encouraged them to try out (or let their companies to try out) newer Fedora versions. Besides, we also met several guys who had used Fedora a lot but had not quite joined the local community, and I invited them to the Fedora BoF (Bird of a Feather) at night.

FreedomKnight’s girlfriend was also around our booth and helped out a lot. COSCUP continued to organize the “Dadi” game: every booth had a unique seal; anyone who had collected all booth seal stamps gained a chance in the lucky draw. There was a RPM packaging workshop which was proposed by the other Fedora ambassador in Taiwan, zerng07. Unfortunately zerng07 was not able to arrive on time due to work emergencies. FreedomKnight took the place and delivered the session.

In the afternoon, there were a workshop by tonghuix about how to use XMPP to chat, and I was asked to help with the demo. We demonstrated how to use free and open source XMPP clients both on Linux desktop and Android cellphone to chat, with and without OTR (off the record) encryption. I also took a few photos for the session.

Then at around 16:00 PM, tonghuix gave an impressive lecture on free software community management. He took many little stories from the book Zhuang Zi as examples to illustrate how and why certain management practices succeed or fail. He summarized the Tao of free software community management as “Three-Self”, which can be roughly translated as “Freedom (aka Self-will or Self-choice), Self-governance, Self-organization”.

When the day’s session almost came to an end, zerng07 finally arrived. We had him and some other Fedora community members for the BoF session in the evening. The total number of people for Fedora BoF was about ten. During the BoF we discussed the interesting differences of languages and education between mainland China and Taiwan, as well as their impact on software localization and overall cooperation of Fedora Chinese community. The Chinese glossary might need to be revived. More interaction is needed to facilitate cooperation, and more awareness and support from the whole Fedora project are also required.

1月 302015

Fedora 21 Release Party Chongqing was successfully held in Go On Cafe on Jan 24, 2015. This was the first time for Fedora Release Party to be in Chongqing to my knowledge. It was organized as a joint event with Chongqing LUG’s monthly meetup. There were about 15 attendees. Most of them were from Chongqing, while I was from Beijing, and another guy was from Chengdu. This was also my first time to visit Chongqing.

The event started around 14:00 and was hosted by Linjie Lyu from Chongqing University. She asked everyone to have a self-introduction first. It turned out we had more or less equal number of company employees and university students. Among them, we had hillwood, an openSUSE contributor, who live broadcast the whole event on weibo.

The first talk was given by Lingyu Zhu. He introduced QEMU and KVM virtualization, and talked about memory balloon and virtual machine migration in details. He demonstrated the common usage of QEMU command line interface a lot during his talk. At last, he revealed the hacks to boot up an ancient system, Red Hat Linux 6.2, with a modern Linux kernel (v3.16) in QEMU.

Then, I talked about "What’s New in Fedora?". I didn’t find current Fedora users in the audience, but some of them had past experience of using Fedora. I introduced the main characteristics of Fedora, the Fedora.next proposal, Fedora 21 features, and Fedora Chinese User Group. In the Q&A session, we discussed about stability of desktop distribution, the role of Fedora Server, and so on.

Next, hillwood gave a lightning talk on his view of "open source". He argued that "open source" is not just "making the source code public". It also means the way of development. In particularly, It means the awareness of making the software compatible among multiple Linux distributions.

At the event we had free coffee. I also distributed the Fedora DVDs and stickers. After the event, we had a group dinner, and enjoyed ourselves while discussing various topics.

Before ending the report, I would like to share some of my observations about open source in Chongqing. Compared with Beijing, the community size is smaller in Chongqing. Part of the reason is that there are fewer IT companies with open source business. At the same time, the current companies find it difficult to find suitable employees and they often need to train new employees themselves first. Besides, there are also a similar phenomenon with Beijing: the business and/or university districts lie in distant locations. The community needs to shift between different venues to reach out to newcomers, and people need to travel some time to get together. However, there are also good news. Chongqing LUG has regular meetups, and there are active members organizing events and promoting free and open source. We think it is beneficial to involve more interested students and more outside speakers in the future.

Click here for the Chinese report by Chongqing LUG and more photos!

11月 262014

Over one week ago, I attended FAD Phnom Penh 2014 in Cambodia. This Fedora Activitiy Day event was for APAC ambassadors to discuss budget planning, event planning, swag production and so on. Below is my full report of the two-day event.

Day 0 (2014-11-14): Arrival Day

I left Beijing in the afternoon and saw the beautiful sunset on the plane. My flight have an intermediate stop at Guangzhou, and we had to get off the plane their, accepted the custom check, and then went back to the same plane. I arrived at Phnom Penh International Airport at midnight. Although we filled the arrival card on the plane, we later found that we need to fill another health form (for Ebola) before getting the visa on arrival. With the help of Somvannda, I saw the Tuk Tuk driver easily when I came out of the airport, who was holding a nice sign with Fedora logo and my name. It took about half an hour from the airport to the Passion Guesthouse. I must say it was really cool to ride on a Tuk Tuk at midnight in Phnom Penh not only because the temperature was not high, but also because it made me exciting to be in a Tuk Tuk on the flyover! With banners in Chinese catching my eyes from time to time, I find Cambodia is somewhat familiar even though this is my first time to be there.

It was quite late when I arrived at the guesthouse, and I was very surprised to see Somvannda, Tuan, Siddhesh, Danishka still awake. It was so sweet of them to wait for me till the late night.

Day 1 (2014-11-15): Events and Budget

On Saturday morning I met Nisa, Izhar, and Sirko (gnokii), and we began our two-day meeting. We used the #fedora-fad IRC channel to involve remote participants. We also set up a pad on PiratePad, where I was responsible for taking important notes.

The meeting started with Sirko’s notes. He is from Germany, and he was there to help the first ambassador FAD in APAC. He pointed out the major problems with APAC communities in his mind, and offered his suggestions. He emphasized the importance of setting deadlines and installing rules. Then each of us introduced the situation in each country respectively. It seems the common problem is to attract new contributors. There are various reasons for that, such as pirating and unawareness of license, competition from other distributions, and shift of interests to cloud and apps. I think to tackle the problem, we need continuous education and promotion, and in particular we need to stress our core values and main characteristics.

Then we spent the remaining day discussing the events and allocating budget in the next fiscal year. As we can see from the wiki page, there are many events planned in the APAC region, and it is nearly impossible to ensure Fedora presence in every event. Therefore, there were a lot of debates about budget allocation when we went through the long list of events. Sometimes the discussion went off topic but we managed to bring the topic back. After we finished the budget planning, we summed them up and found a big total amount. So it is still necessary to assign different priorities for the events in case of budget cut down. It will be one main job after FAD.

According to the current budget allocation, we will promote Fedora in release parties, SFD, DFD, HFD, Linux Day as usual. We also want to have more not-so-big meetups which are for Fedora contributors and users but not tightly related to the release. Besides, we would like make Barcamp Phnom Penh and COSCUP places where ambassadors in the whole APAC region can meet and discuss.


We were quite tired after the whole day’s meeting, but we got refreshed by the local seafood at Kuch Angkor Restaurant. A friend of Tuan in Cambodia joined the dinner. We talked about a lot of things and enjoyed the Angkor beer very much.

Day 2 (2014-11-16): Other Stuff

The remaining topics were discussed on the second day. We first briefly talked about FAD and FUDCon. One current issue with FUDCon APAC is that the planning phase is too short since decision is made in January and the event happens in May. Sirko suggested that the decision should be made earlier, maybe announced right at the previous FUDCon. This way it is better advertisement and long planning period. We cannot make it work this way for FUDCon APAC 2015 though, which means possible hosts should bid for the next year’s event as soon as possible.

The main topic was swag production actually. We generally agreed that it is better to have central massive production to reduce the cost, and it is good to produce some swags with EMEA. But there are so many counties in APAC and different regulations about shipping. So first we need to collect the cost of production and shipping in each (active) country, and we set the deadline to be January 1st. We also discussed materials (such as banners) tracking and set the same deadline to work out the inventory of materials in APAC.


With APAC credit card holder Izhar on site, we went on to discuss the payapl transaction fee issue. It is a pain that currently ambassdors have to lost some money when getting reimbursed due to transaction fee charged by paypal. Several workarounds were proposed, and hopefully we can make real progress and no longer have this issue in the near future.

Last but not least, we distributed the ambassador Polo shirts. Thanks to the Cambodian team, we finally have Polo shirts for APAC ambassadors. It is really good for identification in offline events, especially those not limited to Fedora. I took along the Polo shirts for Chinese ambassadors who registered on the wiki page, and will distribute them to each owner soon. Those who have not registered on the wiki page, please request your Polo shirt by creating a ticket on the fedora-apac trac.


The last night in Phnom Penh was full of memory. We had two (!) dinners, walked along the river, visited the night market, saw famous sight spots when riding on the Tuk Tuk, and discussed even when we got back to the guesthouse. I wish I could stay longer, but to catch my flight, I left in the beautiful morning of Monday.

I have a busy schedule recently, and now over one week has passed since the FAD. I see it was a really great start for APAC ambassadors to get together, meet face to face, and fulfil important tasks. I look forward to more chances to involve more ambassadors in the region to work together. In this way we can make bigger differences as a whole.

9月 262014

Last week, I was very honored to get sponsored to participate the Hanoi SFD 2014. I joined the Fedora meetup on Friday and gave a talk on Saturday. Below is the full report.

Day 0 (2014-09-18): Arrival Day

I left Beijing early in the morning and in the afternoon stayed in Hong Kong Airport to transfer. The flight to Hanoi was a bit late, and I arrived at the Hanoi Airport at around 8:00 PM (local time, 9:00 PM in Beijing time). The weather was wet and hot, but the people are nice. It took me some time to find a large shuttle bus, rather than the minibus. On the bus I met a Japanese guy, and it turned out he lived in a hotel not far from mine. So after getting off the bus, we walked to our hotels together most of the way.

It was about 10:00 PM when I arrived at the hotel. I shared a room with Sarup (banas), and he told me they (Thang, Somvannda, Tuan and others) would like to have me together go out for beer. I was a bit tired after the long trip, but after ten minutes’ rest, I joined them. Thang carried me on his motorbike to a street corner nearby, and I met Tuan (for the first time) and Somvannda (for the second time). I was surprised to find many people are there on the street at first. But I soon realized having cool beer outside is the best way to pass the hot night. By cool I mean not only temperature (ice beer), but also the taste (nice beer).

Day 1 (2014-09-19): Fedora Meetup

On Friday morning we went to the VAIP office and had a Fedora APAC ambassador meetup the whole day. The meetup was set up for APAC ambassadors to discuss critical tasks. EMEA has had a lot of similar meetups, but for APAC, it was the first to my knowledge. (It was at least the first in this year.) To include remote participants who cannot make it at Hanoi, we also joined the #fedora-apac IRC channel. There we met gnokii, kushal, FranciscoD, etc. We also set up a pad on PiratePad.

In the morning, we discussed many issues including the budget status, current issues and so on. It seems the major issue is that not many APAC ambassadors are active, and people do not regularly attend meetings. In China, the state is somewhat better: we do have a few active contributors and we managed to have regular IRC meetings and offline activities (release parties every release, yearly FAD, and FUDCon Beijing). In India there is another problem: there might be too many ambassadors and some people tend to use Fedora as a travel agency. We agreed that people need actively participate biweekly meetings and mailing list discussions to get their tickets approved easily, and to be considered as active, one ambassador needs to organize (or help organize) at least one event per year.

We also talked about the FAD Phnom Penh under planning and the ambassador Polo shirts. The FAD planning is generally in good shape. I saw no Taiwan ambassador registered the event but I think they should consider. Regarding the Polo shirts, unfortunately the Fedora logo on the sample shirt is incorrect and needs to be fixed. And the quality of the shirt is not quite high. I am supposed to ask local vendors in China to see if we can get better ones within a reasonable price. We went on to discuss general swag production issues. gnokii suggested that good quality can be produced in Europe for both EMEA and APAC regions. Besides, China can be one good candidate among the locations to store the swag.

I also learned from Tuan about why we APAC folks lose some money when getting reimbursed by paypal while Americans not. The reason is that US paypal accounts have the option to cover the transaction fee by the sender, while other accounts do not. So the fee is charged at the receiver side, causing the loss. To walk around the issue, we might let APAC CC holder izhar set up a US paypal account.

In the afternoon, after a short pizza lunch, we carried on remaining tasks. We spent quite some time in summarizing the budget usage in previous quarters. It was sad to find that none of the planned events in Q2 happened at last. To solve the budget problem, we adjusted the budget allocation for the remaining quarters, and came up with ideas of possible events. After that, we talked about Fedora sessions for the SFD next day. At last, Somvannda asked us to share stories of being an Fedora ambassador. For me, it was the simple idea of organizing regular events to gather existing contributors and attract newcomers, and the idea of starting something by oneself when no one else has started it.


In the evening, we went to see the water puppet show, which is fun and amazing. At dinner we had delicious dishes and noodles, and Saigon beer! But we did not stay up too late at night, since we felt quite tired after one day’s meeting, and we need to prepare for SFD in the next day.

Day 2 (2014-09-20): Hanoi SFD 2014

Saturday was the Software Freedom Day (SFD), a global event to celebrate Free and Open Source Software (FOSS). I organized SFD in Tsinghua University last year, and it is lucky for me to be part of SFD Hanoi this year. Hanoi SFD is organized by VFOSSA, the FOSS association in Vietnam. Fedora was one main sponsor of the event. It was a whole day event held in a university. So many volunteers are students and employees of the university. It was fun that the event begins with volunteers dancing, both in the morning and in the afternoon, and they are so good at it!

In the morning are welcome and keynote sessions in one large lecture hall. Sarup, Somvannda, and I are honored to be introduced as special international guests to the event (in English). They awarded new members and event sponsors in the welcome session. Later in the keynote session, Tuan delivered a speech on seven ways to contribute to Fedora (without coding). Most of the morning sessions were in Vietnamese, and I could only understand a little bit. I brought some Fedora 20 DVDs, stickers, and flyers from China, and they were distributed very soon at the booth.


In the afternoon, we had a dedicated room for Fedora related sessions. First, Thang gave a general introduction of the Fedora Project to the audience in Vietnamese. Then I talked about free and open source software defined radio (FOSS SDR). With a lot of examples, I introduced why we should have FOSS SDR, and how FOSS SDR can enable hacking in the radio frequency. I introduced GNU Radio and various SDR hardware such as HackRF and bladeRF to show how FOSS and open hardware play well with each other. Since the talk was in English, and the topic is not so familiar, the main purpose of the talk was to show the power of FOSS and open hardware, and to encourage the audience to try out and contribute to FOSS projects.


Later on, Sarup delivered a FOSS 101 talk. He talked about why we should choose FOSS, how newcomers join and contribute to Fedora, and main communication tools of FOSS communities. Then he gave an introduction on Git and version control concepts. I helped demonstrate the git operations, and Trang helped translate for easy understanding.

At around 4:00 PM, we gathered to one room again. There was a panel Q&A session followed by the lucky draw. The panel session was quite interactive, and the audience raised many questions. One interesting thing is that the panel speakers voted for the best question and there was an award for that questioner. Then in the lucky draw, it turned out we foreigners were not so lucky. None of us was chosen. But lucky draw is always fun for everyone.

In the evening, we had dinner with the organizers and volunteers of SFD. We drank beer and toast to each other. I even learned how to toast in Vietnamese!

Day 3 (2014-09-21): One Day Tour

On Sunday, Somvannda and Sarup left for the airport early in the morning. My flight was around at 7:00 PM, so I took a one day tour in Hanoi. I visited Quang Truong Ba Dinh (Ba Dinh Square), Ho Chi Minh’s Stilt House, Ho Chi Minh Museum, One Pillar Pagoda, the Flag Tower, Hanoi Cathedral, and so on. The sight spots are relatively near to each other, so I travelled around mostly by walking. I had lunch at Quan An Ngon, a popular restaurant in Hanoi, and bought some candies and gifts to bring back to China. In the afternoon, on the way back to the airport, I also walked by the Ho Hoan Kiem (Hoan Kiem Lake). The sight spots are nice, and the food is delicious. So I enjoyed the trip to Hanoi a lot. Plus the warm support and help from Tuan, Thang, Somvannda, Sarup, and others, the days in Hanoi are quite memorable to me.

8月 242014

今年 7 月 19–20 日,台湾的开源社区大会 COSCUP 2014 在台北召开。我有幸以演讲者的身份第一次参加到了活动当中,所见所闻颇丰。


什么时间第一次听说 COSCUP 我已经记不清楚了。可以确定的是 emily 在 4 月份的一次 IRC 会议里提起过。tonghui 应该也提到过若干次。在大家的口中,COSCUP 非常有趣,台湾人很有娱乐精神。于是在今年的 COSCUP 征集演讲时,我投了两个话题,最终很幸运有一个被接收。FUDCon 期间,Max 也极力推荐我去 COSCUP 体验一下,liangsuilong 特别提到和 zerng07 等位于台湾的 Fedora 社区成员会面交流,他们也会参加 COSCUP 活动。此外,我对台湾自由行盘算多时,这正好是一个顺道去台湾旅行的机会,而 COSCUP 时间正好和实验室假期安排一致。基于以上原因,我下定决心去参加 COSCUP,之后顺便台湾自由行,即使后来得知大会不提供机票住宿的报销。

第 0 天:7 月 18 日


因为机票要自费,所以最终订了一个在香港中转一次的航班。去程是深夜出发,感谢宝哥开车送我去首都国际机场。安检时查出带的洗头膏和沐浴露超量(200 mL,超出 100 mL 限制),只能免费寄存在机场,等回程时取走。航班延误了大约两个小时,应该与香港方面的天气情况有关。延误使得到香港时已经天亮,于是在香港机场吃了早饭。VISA 信用卡不知为何用不了,而且没有预备港币,还好可以付人民币找港币。

到达台北桃园机场已经是中午时分。排队过边检、换台币,发现机场已经不办青壮卡了。我住宿订在南港安乐旅社,过去要先坐一个小时的巴士。赶上了 12 点多出发去南港的客运巴士,巴士报站的是标准的台湾男声,温文尔雅。巴士终点是南港展览馆,我还进去逛了逛,不过没看到什么展览,倒是有一个会场有许多日本人在聚会。出来后依着旅社事先给的路线提示寻找,不过第一次真的没找到。当时还没办手机卡,在机场没有注意到办卡地点,再去找就只能做一个小时后的一班巴士了。不过走着走着看到路边有个中华电信的营业厅,于是决定先把手机卡办了。办的十天不限流量的 3G 卡,要 500 新台币;另外为了能打电话发短信,又充了 100 新台币值,后来证明这个充多了用处不大。办卡的女生太温柔礼貌了,我刚等了十秒钟就跟我说让您久等了,这着实让我一惊。

有了手机卡,有了 3G 网络,Google 地图终于可以派上用场了。最终找到旅社时,感慨他们家的门面招牌太小太不起眼了。不过他们是一家正宗的国际青旅,条件设施相当不错。住下后的下午没有出门,主要是休息一下,另外上网预订了去花莲的火车票,查了去演讲者晚宴的路线。


演讲者晚宴在钱唐村,从我住的地方可以坐捷运过去,我顺道办了悠游卡。出捷运后还要走一会儿,路上经过了诚品敦南店,还能望到 101 大楼。还没看到餐厅招牌,就已经看到了从上海前来参会的 Thomas Yao。后来得知这是一家上海菜馆,饭菜很不错,不过 Thomas 的心情很复杂。进门领了胸牌 (Badge),看到了 tonghui。在吃好喝好的同是,还认识了 COSCUP 主办方议程方面的组织者、大会主持人 Richard Lin,以及我的演讲所在分会场的主持人 Penk,见到了 PCManX, fourdollars 等大神。比较囧的是一开始把 g0v 的村长误认成了大妈,二人发型初看挺像的 XD 从晚宴回住处的途中,我去了国父纪念馆,近距离拍摄了 101 大楼。

第 1 天:7 月 19 日

COSCUP 正式活动于周末两天在中研院举行。周六我早起在住处附近吃过早饭后搭公车(大陆称公交)前往会场。刚开始搞错了方向,耽误了些时间,不过也了解到台湾的公车是需要摆手才会到站停车的。到会场后找到演讲者签到处,很快拿到了会议袋,内有一本议程册和一件 Polo 衫和若干宣传页。COSCUP 并行演讲有 7 个之多,人文馆一层楼的会议室装不下,以至于一半的演讲在另外一个楼,名叫学术活动中心。好在 keynote 时全场地联播,各个分会场都可以实时看到主会场的画面,能够有效地分流观众。我的演讲安排在学术活动中心的一个房间,并且就在 keynote 之后,所以我提前去那个楼了。

九点多些,活动正式开幕,Richard 是主持。他介绍今年参会一千多人,但门票开票后 10 秒钟就被抢光,可谓秒杀,COSCUP 受欢迎程度可见一斑。Richard 还指出 COSCUP 不仅仅是技术分享,更重要的是提供遇到社区中的人,和大家面对面交流的机会。之后是题为 Maker 《自造世代》的 keynote,但与传统形式有很大不同,这个 keynote 先是播放 Maker 电影片段,然后是主持人和电影团队、开源人士进行小组讨论 (panel discussion)。Maker 大陆翻译为创客,台湾翻译为自造者。Maker 和开源有许多关联,这也是主办方将今年主题定为 Make Things Happen 的原因。

keynote 行将结束时,我就前往 H3 会议室,准备我的演讲了。H3 是个小会议室,挺容易坐满的。我的主题是 Fedora.next: What’s Next?,开始前我先做了个小调查,发现在场听说过、用过 Fedora 的用户还不少。在演讲中我还是先简单介绍了 Fedora 项目及其四项基本点,然后介绍了 Fedora.next 这一架构提案的缘起、内容、以及当前进展情况。Fedora.next 目前仍是一个比较新的概念,这个演讲的主要目的是让中文社区的朋友更紧密地跟进说英语的核心社区,为社区未来发展做出更多更为核心的贡献。

问答环节有提问问到 Fedora 会不会有类似某些发行版那样的长期支持版 (LTS)。我的回答是目前看来没有。这和 Fedora 相对更追求新鲜特性 (Feature)、敢为人先 (First) 的特点有关。RHEL、CentOS 等 Fedora 衍生版则更多关注稳定性。历史上有一个 Fedora Legacy 项目来对旧版本的 Fedora 进行持续支持,不过后来因为缺乏人力和兴趣,已经不再继续。不过,最近的 Fedora 贡献者大会 Flock 2014 上,Fedora Workstation 工作组的 Christian Schaller 提到要打造真正的 ABI,这也许会在将来改善 Fedora 的长时稳定性。


之后我发放了 Fedora 的小礼品——一些胸章和徽章 (pins and buttons)给现场听众。这些小礼品最初在欧洲生产,由 tuanta 带到越南,然后在 FUDCon 时寄到北京,再被我带到台湾,相当有纪念意义。我也受到了 COSCUP 给演讲者准备的礼物,是一个体验活字印刷的盒子,非常精美。值得一提的是,COSCUP 会让演讲者现场签一个授权协议,用 CC 协议授权自己的讲稿和录像。

茶歇时间,我找到 zerng07 等人,边聊天边逛展台(摊位)。大会展台巨多,分布在不同楼以及不同楼层。主办方搞起了所谓大地游戏,逛展台时刷自己的胸牌,然后刷够一定数量后可以领取一个礼品,这也刺激了大家逛展台的兴趣,增进了和不同社区交流讨论的机会。Mozilla、Ubuntu 等的台湾社区颇为壮大,展台布置地也很赞,礼品多多活动多多。来自大陆的赞助商 GitCafe 也有一个活跃的展台,不过他们需要和不太了解的观众解释他们不是卖咖啡的 :D。值得一提的是,一些赞助商看似和技术、开源没什么关系,却也在展台上兴致勃勃地卖茶、卖饮料,足见 COSCUP 已经辐射到传统的开源圈子以外,有着更广泛的关注和参与。在展台处碰到了 Max,顺利实现了 GNOME.Asia 视频的“人肉转运”。几天之后,Max 就把他们悉数上传到了 Youtube 上。

午餐由 COSCUP 统一提供,两个发放点,一千多人秩序井然地排队。队伍绕了整个楼层一周,据说排到了别的楼层,阵势丝毫不亚于清华电子系学生节排队。午餐就是大陆习惯称呼的盒饭,在台湾叫便当。菜品比较丰富,味道也不错。午饭时和大家聊,大家一致认为中研院是一个非常好的场地。事实上两年前的 COSCUP 也是在这里举办。饭后亲眼见到餐余垃圾的细致分类,印象深刻。

一天之中,除了茶歇和午餐,剩余时间主要就是赶场听报告了。在两层座位加过道都坐满了的大会议室里,PCMan 讲到 LXQt 是开源社区的成功合并 (merge) 而非分支 (fork),而他本人是个医生,开源只是业余爱好。法律专业老师葛冬梅为大家讲解如何确定开源项目的许可证信息,特殊情况该如何处理。Kito Cheng 生动地描述开源编译器,主要是 clang 和 gcc,之间的“竞赛”,所在的小会议室在开讲前就已爆棚。来自赞助商 Google 的演讲题目直到最后才揭晓,是由其工程师吴光哲介绍刚刚发布的 Noto Sans CJK 字体制作过程的点滴,中型会议室也是人满为患。下午最后一场,我听了高村长 (clkao) 的 g0v 村情咨文。

到了晚上,COSCUP 安排了分社区的 BoF(Bird of Feather,同类人聚会)环节,并且提供了皮萨可乐。我参加了 Fedora 社区的聚会,和台湾地区的 Fedora 中文用户边吃边聊。Fedora 在台湾的社区不大,影响力相对较小,成员都比较年轻,多为学生,发展新成员也较多依靠朋友推介,优点是有兴趣有热情方便组织活动,缺点是社区参与受学业影响较大。这一点和大陆的情况颇为类似。因为人数不多,人力有限,所以台湾社区成员的精力主要集中在中文字体、输入法、本地化等中文用户最关心的问题上。相比起来,大陆这边贡献更为多元。另外,虽然台湾社区成员也参与 Fedora 中文列表的讨论,但他们似乎主要通过 Fedora 中文用户组在 Facebook 上的社群页来在线交流,而大陆用户很少参与其中,这使得两边交流目前比较有限。希望今后两边能有更多交流,在台湾地区大家的活力能够让 Fedora 为更多的人所知所用。

BoF 结束后,Max 请我和 tonghui 去他们住处附近的宁夏夜市,体验台北小吃。最初我们大陆团计划去师大夜市,不过得知那里的夜市氛围已大不如前。宁夏夜市位于宁夏街,一条不长的街道,但路两边小吃店和小吃摊琳琅满目。Max 带我们体验了炒粉(?)、豆花、还有记不清名字的带馅丸子,我们纷纷表示很好吃,并未事先没有预留肚子表示遗憾。据了解,台北小吃可以吃到晚上两三点,相应地公车和捷运的末班也都较晚,不由感慨台湾人民夜生活之幸福。


因为我在台湾要待的日期不多,所以周日我就没有参与 COSCUP 的活动,而是选择了台北一日游。不过单就这一天,COSCUP 已经给我留下了很深的感受。总体说来,COSCUP 作为一个社区大会,汇聚了许多台湾的开源社区,促进了社区成员之间的交流,已经显示出了对更广泛人群的吸引力。从演讲话题来讲,话题征集不只强调甚至一定程度上弱化技术,更为关注社区建设和发展。另外开源被赋予了更多的内涵和外延,除了传统的开源技术社区话题外,还有不少开放政府、开放数据的主题。台湾当地的演讲者参与开源大多是兴趣驱动,演讲幽默风趣、生动好玩,(据说闪电演讲都会各种表演乃至杂耍,)演讲效果自然上乘。相对于技术交流为主的演讲,COSCUP 更注重让大家通过面对面的机会交友和交流,这对社区的发展壮大是有益的。反观大陆,我以为还没有一个能和 COSCUP 相提并论的社区大会。上半年的 GNOME.Asia 和 FUDCon APAC 合办,是一次很好的经历,但是在参与社区的数目、活动规模等方面还有一定差距。这和活动本身定位有关系,毕竟他们本身面向的人群是自己社区,面向的地域是整个亚洲/亚太而非中国。COSCUP 的成功,也许得益于台湾地域较小,交通相对廉价,人民(这里主要是程序员)生活水平较高。不过这不是大陆地区(或者整个华语地区)没有如此社区大会的借口。COSCUP 在议程、志愿者、展台等方面为大陆的社区活动提供了可以借鉴的经验。在其帮助下,通过社区群策群力,相信大陆地区真正意义上的社区大会可以梦想成真。

8月 232014

Note: This is a press style report of FUDCon APAC 2014, which summarizes the event highlights. Don’t miss the links to slides, videos, and photos!

FUDCon APAC 2014 was successfully held at Conference Center at New Main Building of Beihang University, Beijing, China during May 23 to 25, 2014. This year the event was held together with GNOME.Asia Summit, an annual conference for GNOME users and developers in Asia. It turns out to be a rather exciting experience of mutually beneficial cooperation of free and open source communities. In total, GNOME.Asia and FUDCon APAC 2014 attracted more than 500 registrants, and among them over 300 attended the event.

There were 52 speakers in total and among them 22 are for FUDCon. Thanks to the help with the community budget, many non-local speakers joined the event and made FUDCon Beijing a big gather up for the Fedora community. The speakers delivered a wide range of topics about free and open source technologies and communities presented in keynote speeches and five parallel tracks. Richard Stallman gave a keynote speech on Computing, Freedom, and Privacy, which is the favorite speech according to the feedback survey. Talks in FUDCon tracks cover various subprojects of Fedora, as well as new application introduction and community building discussion. The links to all slides are available at the wiki page. As for the videos, they are currently available at the GNOME.Asia channel on Youtube. The Fedora Videos team is working to make them available on Fedora channel.

There were about 50 volunteers at the event. They were recruited from the local universities and companies. They showed great enthusiam and did amazing jobs to make the event well organized. Two of them, Tong Hui from GNOME and Zamir Sun from Fedora, were each awarded the prize of best volunteer, a hand fan full of wishes in various languages written by the attendees.

It is worth pointing out that about ten percent of the attendees are women. Many of them are active volunteers and talented speakers. Still more women contributors are expected in free and open source communities. And there was a dedicated session, Fedora Women initiated by Nitesh, to discuss the issue and possible solutions.

FUDCon is not just about technical sessions. It is also about meeting friends and having fun. FUDPub was organized as a welcome party, and there was a celebration party with delicious buffet on Sunday evening. On Saturday there were sports games including football, baseketball, and ping-pong. These social events helped the attendees enjoy the conference and the community.

Special thanks go to the sponsors. FUDCon was sponsored by 7 companies and 5 local communities. The success would be impossible without their generous support. There were 14 booths for sponsoring companies and local communities at the joint event. Attendees enjoyed hanging around the booths for discussion, and many swags were distributed at the booths.

Photos and Reports from various attendees are aggregated on the wiki page. The FUDCon Beijing Badge has been created and is in the process of collecting FAS usernames at the current writing.


8月 102014

bladeRF 维基上介绍了在 Linux 系统上搭建 bladeRF 环境的步骤,不过原文是英文的,另外其中一些具体选择不尽合理。本文以 Fedora 系统为示例,提供一个中文版的 bladeRF 环境搭建指南,并着重介绍和维基上的不同点。比较可能有一定的时效性,但一些原则应该足够通用。本文的比较基准是当前的维基版本


维基上建议安装 “Development Tools” “Development Libraries” 两个软件包组,但我们只需要其中的一部分软件包,其中有些可能已经安装过了,而像 cvs 等并不必须。如果你像我一样有“洁癖”,不希望安装不需要的软件包,那么可以用如下的命令安装必须的依赖(未严格验证,在我这里绝大多数包都在之前安装过了):

sudo yum install git doxygen gettext glibc-devel ncurses-devel readline-devel zlib-devel boost-devel
sudo yum install libusbx libusbx-devel cmake wget gcc-c++

注意其中是 libusbx 而非 libusb,后者是 0.x 系列的版本,而非 1.x 系列。Debian/Ubuntu 系的用户会注意到软件包命名上的差异 (devel 而非 dev)。

维基上推荐安装 libtecla,以增强 bladeRF-cli 交互模式的编辑功能。不过 Fedora 软件源里目前还没有这个包,所以需要手动下载,解压缩,使用经典的 ./configure; make; sudo make install 三部曲安装。

构建 bladeRF

在终端下进入打算用来放置 bladeRF 源码的目录,用 git 将 bladeRF 的源码库克隆下来:

cd /path/to/bladeRF/directory
git clone https://github.com/Nuand/bladeRF.git

切换到源码目录中的 host 目录,创建一个 build 目录用来存放构建过程的中间文件。这种使用单独的构建目录的方式称为树外构建 (out of tree build),相对于直接在源码目录构建,好处在于生成的中间文件不会分散在源码目录里,方便清理,另外可以用多个构建目录构建出互不干扰的不同参数下的版本。之后切换到构建目录,然后就是标准的 cmake ..; make; sudo make install 三部曲了。注意这里 cmake 时启用了 INSTALL_UDEV_RULES 宏,使得安装时把 udev 规则文件也安装到系统中。

cd bladeRF/host/
mkdir build
cd build
sudo make install

很遗憾的是这里安装的 udev 规则文件使用了 plugdev 群组,不是 Fedora 下的标准做法。可以参考之前的博文修改 udev 规则文件。

为了让新安装的 bladeRF 库文件可以被二进制文件使用,我们需要用 ldconfig 刷新系统动态库的缓存。上面的构建过程会将 bladeRF 安装到 /usr/local 下,而其中的库文件目录 /usr/local/lib{,64} 不在 ldconfig 的默认搜索路径里。所以我们可以将它们添加到 /etc/ld.so.conf 里。添加之后文件内容如下:

include ld.so.conf.d/*.conf

之后,用 sudo ldconfig 刷新缓存即可。可以用 ldd /usr/local/bin/bladeRF-cli 命令检查 bladeRF 库文件是否被找到。连上 bladeRF 设备,用 bladeRF-cli -p 命令看下是否能够发现设备。更多操作见于另一个维基页

构建 GNU Radio 与 gr-osmosdr

通过上述步骤,就可以操作 bladeRF 板卡了。但是,要想便捷地为 bladeRF 开发软件无线电应用,最好再构建一下 GNU Radio 和 gr-osmosdr。GNU Radio 是一个开源的软件无线电开发平台,提供众多的信号处理模块和简单易用的图形界面开发环境。gr-osmosdr 适配 GNU Radio,为众多硬件板卡(除了 bladeRF 之外还有 HackRF 等)提供一个统一的软件接口。

GNU Radio 依赖比较多,编译安装相对麻烦,一般推荐使用 build-gnuradio 脚本。但是因为其中涉及到从网络下载诸多软件以及编译安装,效率受网速和电脑硬件性能限制,耗时较长。另外,脚本的健壮性不高,所以很容易中途退出。这个脚本很长,但实际上是把整个构建过程划分为几个步骤,放在几个函数里先后执行的。我建议阅读这个 Shell 脚本,每次运行其中的一步或几步,必要时手动完成一些配置。对于新手,这会是一个很好的通过阅读代码学习 Shell 编程的机会。


  • 如果你像我一样,除了 bladeRF 之外,还会使用 Ettus 公司的 USRP 系列设备,那么记得先构建 UHD,然后构建 GNU Radio。
  • build-gnuradio 脚本在 cmake 时,有时用了树外构建,但有时又没用。建议始终用树外构建。
  • 编译 GNU Radio 时,并行 make (make -j N 其中 N 大于 1)时有时会编译失败(竞态条件?),直接 make 就可以正常编译通过,虽然速度会慢很多。什么?make 也会出错?那考虑换一个 git 提交重新编译,并向上游报 BUG 吧。

构建成功 GNU Radio 后,构建 gr-osmosdr 就显得小菜一碟了,标准的 cmake 构建三部曲,项目不大,编译过程也能很快完成。

全部构建完成后,可以使用如下命令用 bladeRF 看一下频谱,检验是否大功告成。其中 FPGA 映像可以从 Nuand 网站下载。此外,最新固件也可以从官网下载。

osmocom_fft -a bladerf=0,fpga=<your FPGA image> -s 2000000 -f 446000000



8月 072014

最近,我发现 Fedora 系统上没有 plugdev 群组,而是使用动态 ACL 的方式允许普通用户访问可插拔设备等。

事情的缘由是我在折腾软件无线电 (SDR),更特别的说就是 bladeRF,它在编译安装时会自动安装相应的 udev 规则,以使得普通用户可以访问这块板卡。它提供的 udev 规则文件为 /etc/udev/rules.d/88-nuand.rules,内容如下:

# nuand bladeRF
ATTR{idVendor}=="1d50", ATTR{idProduct}=="6066", MODE="660", GROUP="plugdev"

# Reserved for future bladeRF-specific bootloader
ATTR{idVendor}=="1d50", ATTR{idProduct}=="6081", MODE="660", GROUP="plugdev"

# Cypress Bootloader
ATTR{idVendor}=="04b4", ATTR{idProduct}=="00f3", MODE="660", GROUP="plugdev"

其含义是将 bladeRF (以及相关设备)的权限设为仅属主和群组可读写,群组设为 plugdev。类似的使用 plugdev 群组的 udev 规则设置,在许多涉及可插拔外设的上游项目里都会看到。

然而事实上 Fedora 系统上是没有 plugdev 群组的。bladeRF 维基建议手动建立该群组,并将当前用户添加进去。 但这种做法其实是不被 Fedora 推荐的,原因是这种静态的设备管理群组

  • 不安全。考虑这样的一个场景:一个 SSH 远程登录的用户可以访问物理主机的摄像头、麦克风,只要他是该群组的成员。
  • 不灵活。需要手动地维护该群组的成员列表,新增用户还需要注销当前会话重启会话才能使用该设备。
  • 不具体。plugdev 群组的用户可以使用任何可插拔设备,不论这个设备是手机、摄像头还是麦克风。

Fedora 支持动态的权限控制 (ACL),可以根据用户会话状态、物理座位(seat)配置来决定是否授权设备。在这种机制下,udev 规则文件可以是简单的一行

SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", \
  ATTRS{idVendor}=="1ed8", ATTRS{idProduct}=="000[456]" \

这里的 ID_<some_name> 是设备的一个“合适”的类别,例如 ID_CDROM, ID_MEDIA_PLAYER 等。它会出现在 Systemd 的 uaccess 规则文件 70-uaccess.rules 中,这个文件会授权此类设备给活跃用户。

遗憾的是,目前 uaccess 规则文件里并没有一个软件无线电有关的设备类别。所以暂时只能像如下的 udev 规则文件中那样,直接给设备加上 uaccess 的标签:

SUBSYSTEM!="usb", GOTO="nuand_rules_end"
ACTION!="add", GOTO="nuand_rules_end"

ATTR{idVendor}=="1d50", ATTR{idProduct}=="6066", TAG+="uaccess"

# Reserved for future bladeRF-specific bootloader
ATTR{idVendor}=="1d50", ATTR{idProduct}=="6081", TAG+="uaccess"

# Cypress Bootloader
ATTR{idVendor}=="04b4", ATTR{idProduct}=="00f3", TAG+="uaccess"


注意 udev 规则文件命名时开头的数字编号需要小于 70,此时 uaccess 才会生效。如果设备已经连接到电脑上,要使新添加的或新修改的规则生效,还需要 udevadm trigger 一下。

事实上,邮件列表并不推荐上述做法,udev 与 Systemd 开发者 Kay Sievers 表示设备规则文件不应该直接设置 uaccess 这一标签。我已经在 systemd-devel 邮件列表上请求添加一个软件无线电相关的设备类别,得到了肯定的回应,并最终在这次提交中添加了 ID_SOFTWARE_RADIO。在不远的将来,带有这一改动的 Systemd 进入主流发行版后,我们将可以通过在 udev 规则文件中使用类似 ENV{ID_SOFTWARE_RADIO}="bladerf" 的语句,让普通用户以一种更安全灵活的方式使用软件无线电外设。

7月 122014

This is my own (unofficial) report of FUDCon APAC 2014 Day 2 (Sunday).

Main Hall

The hosts in the main hall on Sunday were Tobi from GNOME and Tommy He from Fedora. The sessions began with the keynote speech on Systemd by Lennart Poettering. He talked about what is the modern Linux system and what role Systemd plays in it. Pity I didn’t finish listening to the talk, since I was asked out to help with hacking room. It turns out quite a few guys would like a separate hacking room. So we decided to open up Room 2 for hacking. Shortly after setting it up, the most important guest, Richard Stallman (RMS), came to the venue along with Zeuux guys and others. They were not happy with the booth setup (it was the last booth) until an exchange was made. They brought many swags, and some of them are to be sold rather than given away. Richard also went into the hack room since it was still some time from his keynote.


After Lennart’s talk there were four lightning talks. It’s such a pity that I missed them all, in particular biergaizi’s lightning talk on “Tips about Linux Servers”. Then RMS’s keynote on “Computing, Freedom and Privacy” began. Many more people were coming and filling up the main hall. RMS’s talk itself is not quite new to me since I had listened to him in Tsinghua. The part about why GNOME was created at all was new, but the history was already familiar to Linux hobbyists. However, being able to listen to his talk on site was quite impressive and educating. I have the feeling that his opinion might be ahead of the time but is always right. In the middle of the talk, he held an auction for a toy gnu and “an adorable book” (Free Software, Free Society). After the talk was the Q&A, which lasted till about 12:45. We went to Heyi Building for lunch after that.


At lunch I got the message from zsun that Ankur would like to have the GPG key signing party in a small room rather than main hall. That was doable and we had difficulties to find a substitute to fill in the empty slot in main hall. At last the signing party was held in Room 2 and there was no replacement in main hall.

Room 3

After lunch it was near 14:00, and the first talk in Room 3 was supposed to be mine. So I hurried there to prepare. The volunteers (Feng Tian, Justin Wong, Rosie Ye, Tang Zhixin, etc.) were ready. I began my talk on LaTeX Tips a little bit later than the schedule. I talked about common compilation errors and output errors and how to fix them. The time was limited so I skipped the part about math formulas and BibTeX errors. I got a question about the main advantages of LaTeX compared with GUI Office applications. I explained that the advantages lie in high quality output and automatic generation of table-of-contents and list-of-various-stuff. Users normally only focus on the main contents rather than formatting issues.

The second talk was “CD using Docker” by Gerard Braad. He explained the actual definition of CD, Consistent Development and Deployment, and use Docker to demonstrate the concept. He introduced PaaS, LXC, cgroups, Dokku and so on along the talk. The talk was presented in an interactive and interesting way: questions, answers, and gifts!

After that there were only 10 minutes for tea break. However it was a nice time to take photos in front of the large banner. The following talk was meant to be Carbo Kuo’s Batsh topic, but he could not come and had sent regrets on Saturday. So Cheer Xiao’s talk was moved upwards to fill in the slot. Cheer Xiao talked about his experiments with Elvish, a new Unix shell created by himself. There were many considerations and tradeoffs when designing a shell, and he introduced the philosophy behind his choices. He also compared it with existing shells such as fish and zsh.

There was no more talks in Room 3 afterwards, so we headed for Room 8 to join the discussion about Fedora Women.

Room 8

The last talk in Room 8 was “Fedora Women” by Nitesh. He would like to make it more an interactive discussion than an oral presentation, and asked zsun and me to help translate. The session turned out to be quite productive. There were many nice suggestions out of the discussion. The main points are summarized as follows (with relevant names in parentheses):

  • For online communications such as IRC in a diverse community like Fedora, people generally do not know whether one is a man or woman, so there is normally no discrimination against gender. The community is equal to men and women. Potential women contributors should not fear questions such as why do you code you are a girl. If there is any such question, it is more important what is one’s interest than what is others’ opinion. (Nitesh, Ankur, Feng Tian)

  • Fedora has many roles and tasks for contributors. Even if you do not like coding, you can try to join the design team or the translation (L10N) team or others to contribute. Fedora also has a lot of special interest groups (SIGs) which welcomes people with that special interest, such as electronics, cloud computing and so on. And there is the opportunity to start a new SIG. There is a SIG called Fedora Join SIG, which is an ideal place for people who are new to the project and do not know what exactly they should do. You can just do informal introduction in the Join SIG mailing list and people will help you find what you can do. (Jaroslav, Aditya, Nitesh, Ankur)

  • There are many tasks waiting for people to join and contribute. And there will be many new tasks since Fedora.next is coming. Some of them are easyfix ones, which is very suitable for new contributors to get started. (Ankur, Jaroslav)

  • The local communities should draw the attention of outside non-users, organize activities to help them especially women to install Fedora on their computer and to show them how things work in the communities. Among the activities some can be girls oriented. Besides, blogging about how to install the OS and how to do various things on Fedora! (Martin, Aditya, Nitesh)

  • Lovely dolls attract girls! We should design more stuff than stickers for offline events. (Feng Tian, zsun)

  • Fedora might have a narrower user base than other projects like GNOME. But people can actually contribute to Fedora even without using it everyday. The way can be bug reporting, translating, or volunteering in offline events, etc. (Justin Wong, zsun)

  • A question to current contributors: why do you fail to bring your girlfriend to the community? (Robin Lee)

  • We should continue the discussion after the conference, rather than raising the same question again on the next conference. We should setup activities talking about how to achieve something, especially in Beijing. We should have clear targets. (Martin)


We went back to the main hall for the closing part of the event, and found the last talk in the main hall had not been finished, and it also became a discussion. So it seems we should consider panel discussion as a session type in the future.

The closing speech was given by Kat (IIRC) and Jaroslav respectively, and then followed by the speech by the local team. Emily and I went on the stage. She spoke in English and I did the translation. We gave our thanks to everyone, especially hardworking volunteers. The two hand fans, full of writings in different languages, were given to Tong Hui and Zamir Sun respectively as gifts for best volunteer of each community. The top horizontal scroll for the couplet was decided to be “Happy Hacking” according to the result of two days’ voting. At last we had a group photo.




In the evening we had a very nice buffet dinner at Oasis Café, Vision Hotel, which is just behind the conference venue. We toasted to everyone and thanked them for coming. I sat with robyduck and zsun. We talked about a lot of things including robyduck’s travel plan. Robyduck also pointed out a possible issue with FZUG’s logo. Richard Stallman also went to the celebration party. Besides, zsun and I stood in front of the camera of Nitesh near the cafe since we promised to participate the short interview by him and Ankur. It was such a relax at the dinner after two days’ event and after several months’ preparation. And I was really happy that many people found the event good and successful.