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Blog of Roy Chan

Linux 二十歲生日

就是 20 年前的 8 月 25 日, Linus Torvalds 貼了一篇文章至 USENET 新聞組 comp.os.minix 第一次向外公報自己正在開發 Linux。可以說,這就是 Linux 的 20 歲生日了。


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Linux 核心 mailling list podcast

這個是早幾天的舊聞,但頗有趣,所以提一提。Jon Master 上週開始製作了一個 Linux kernel mailling list (LKML) 的 podcast,每日提供一個約五分鐘當日 LKML 上討論的總結。Jon 的說法是想方便沒有時間看 kernel mailing list 的朋友。不過這工程應該很浩大,每日出一集,要花的時間可不少,不知 Jon 可以支援多久。我下載聽過, Jon 的報導頗 flat,高低仰揚欠奉,但勝在夠慢,想練一練英文的 Linux 友不妨一聽 (Jon 也有上載講稱至 Kernel Newbies,也給 多點支持。Jon 大約每天香港時間下午一、二點左右發佈新一集。


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GNU/Linux HSDPA (3.5G) 上網!?

早一陣子,有人問我 GNU/Linux 可不可以 HSDRA (3.5G) 上網。現在香港 HSDPA 計畫都頗貴,我沒有錢使用,所以亦答不到。不過研究一下亦無況。

Google 搜索一下,Tuxmobil 有一專頁收集了有過 GNU/Linux 3G 上網的資料。似乎上 Smartone-Vodafone 最新那個 HSDPA USB stick 有 GNU/Linux 驅動器,有 Debian、Fedora 8 和 OpenSuSE 10.3 等 distro 的套件預備。但見討論區有不少人投訴驅動器有問題。

有機會要找個有 Smartone-Vodafone USB stick 的朋友備來試試。


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Fail in swsusp+ACPI under Linux 2.6.6

I have mention that something wrong with the hibernation partition made Phoenix BIOS hibernation take me more 5 mins to enter the boot screen every time I switch my x30 on. While Linux 2.6.6 is out, I decide to give ACPI and software suspend (swsusp) a try again (I had try it while Linux 2.6.0 is out, aound late Dec of 2003). However, I found that the swsusp in Linux 2.6.6 is outdated. New suspend2 have out for a while and planned to merge into the Linux 2.6 later. Worse that the original site have droped the suspend.sh of swsusp 1.x. It spend me much time to make it works. I found that I shouldn’t put “resume=....” parameter in GRUB if I had already specified in kernel config. However the suspend-to-disk is not much stable, It works once but fail today morning. Another problem is that the suspend-to-ram never works. (which is much more important to me) Finally, I decided to switch back to APM and watch until suspend2 merged with Linux main stream.

But if you want to have a try on it, here is some link related.


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Linux 2.6.5 and 2.6.6

Besides stardict, I spend sometime on reading the new feature Linux 2.6.6 on 14th night. It seems that 2.6.6 got some interesting thing like “laptop-mod” and CFQ and worth to have a try.

As I have mention, my HDD was damage and I have to re-install everything these few weeks, including kernel 2.6. I haven’t backup my Linux 2.6.x .config before the HDD damage. It spent me several hours to re-select the suitable configuration for my Thinkpad x30. This time, I decided to upload my configuration for backup and sharing even it is not prefect yet. If you also using the IBM Thinkpad x30, you can find my compiled Linux 2.6.5 here. It works with all my extra devices including:

  • Palm Tungstun T3
  • Truly MP3 Player MP378
  • Buffalo PCMCIA Wireless LAN WLI-PCM-L11
  • EagleTec CF 5in1 card reader

I keep using APM while I found the software suspend in 2.6.0 doesn’t work. The hibernation of Pheonix BIOS works ok before my HD damage but the notebook spend over 5 mins. to enter the GRUB screen everytime I switch on. It really freaked me out and thought the HD was damaged again. I don’t know why it stalled so long before booting and suspend it is caused by the wrong geometry location of the hibernation partition. But I’m sure it is not the Linux problem. I may need to relocate the partition or move to ACPI and try software suspend again.

No devfs support while it is obsoleted. I decided to try udev later.


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Oops, Linux 2.6.4

I had mention that I had upgrade the kernel of my thinkpad X30 to Linux 2.6.4 from 2.6.2. It’s sound 2.6.4 got much problem that 2.6.2 don’t have. The NIC and sound not function after sleep mode. But I have configured to comple the 2 drivers into kernel rather then a loadable modules in there versions. So, I can’t sure it is a problem of 2.6.4 or not. However, the major problem is that the PCMCIA can’t work in 2.6.4, so I switch back to 2.6.2 now. While I have patch the 2.6.4 to support supermount and bootsplash, I think I may use a clean code to test again later.


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第十大行星及 LoTR Musical

有留意其他新聞都知終於成功發現第十大行星 Sendra 。和冥王星一樣,Sedra 的軌道並非和其他八行星同一平面。

Sedna 本身是 Inuit (住在加拿大北部,即愛斯基摩人)神話中的女海神,亦掌管動物, 特別是海豹之類。而神話中,海豹、海獅及鯨魚是由 Sedna 的手指變成。

另一樣有趣的是 Lord of The Rings 會被改編成三小時半的音樂劇, 預計將在明天於倫敦公映。原著中有很多詩和短歌,改編成音樂劇也可能不 錯。不過 orkut 有不少人都覺得難以想像如 LoTR 變成意樂劇會變成怎樣, 有人亦不敢想像 Orcs 唱歌的情景。

另外,我在上周六把手上的 notebook ,換了 2.6.4 。


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趣聞: Kernel source here

來自 Adam Kessel’s blog 的一則趣事。大概很多人都有留意早前 微軟視窗的源碼被漏的新聞。有位朋友就在那段期間啟動了一個 Linux 2.6.2 的 BitTorrent ,並一事慶起改了個名字叫 "Kernel source here" 。這個 torrent 被啟動後不到幾個小時就吸引到過六百個下載者。然而,第二天一清早,該位朋友就發現他的寬頻被其 ISP 截斷了。原因是微軟寄了封電郵給其 ISP 懷疑他非法散播"視窗"的源碼!?


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Linux 2.6.2

I had planned to wrote sth about Linux 2.6 while I have played it for a while (since Dec 20) and using 2.6.2 since last week. I haven’t much time to test it but it sounds work with most of my devices including MP3 Player and Palm. But the connection of the above devices may not work well after hiberation.


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Geeky

Sure, many people remeber Linus Torvalds announce "Linus 2.0" release
when his first daughter born. It’s a kind of hacker humor but he didn’t
really name his daughter as Linus 2.0. However, here is a guy really named his son as foo 2.0. >_<


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Distributed/Cluster File System

Just searching some Distributed/Cluster file system for Linux and Solaris, and find this:


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BlueTooth and Linux

Oh.. just find this info:


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Linux+XFS Howto link

Provided by big stick, here is a HOWTO of Linux+XFS


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Running Linux 2.4.x in Debian potato

Have I mention? www.debian.org.hk (this machine) is runing Linux 2.4.x. Still potato… (compiled by zzzz) if you want to run Linux 2.4 in Potato, read this:


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電腦世界有沒有民主?

早兩個月有人係 E-Fever BBS 個 Computer Feeling 板開左個 topic - 『電腦世界有沒有民主?』講真,個題目 同討論內容在我而言確實無乜水準,完全引起唔到我既興趣去回應。不過 六四 這個日子令我成日係度諗呢煩問題.. 所以大發雅慶.. 吹左少少野。

適逢今日係六四… 令我想對呢個問題講d 野 … 當你討論一個體系有無民主時,其實你知唔知乜叫民主? 投票 == 民主 ? 民主係唔係每一個體系都需要? 或者係唔係每一個體系 都適合行民主? 而點樣做先叫民主?

咁多問題唔係評批大家,只係我想當我去對呢個 topic 發表個人意見時,最少要搞清上面其中幾點。

提起自由軟件運動同民主都好似有幾有趣既關係。比起 專利軟件,自由軟件容許更多人參與其改進,似乎自由軟件 比專利軟件民主.. 但能夠參與改進只限於有適當技術的人 ﹐專利軟件則透過市場反應去改進 … 收到的意見好像多 點。咦! 商業軟件 並不 => 專利軟件 … 自由軟件的開發 者也會見到市場反應。

在 Linux 的開發中,任何人都可以參與.. 但最終的決策者 係 Linus Torvalds 。也有人說過 Linus 是一個獨裁者.. 哈 .. 但你亦有權自己 fork 另一個 linux 的開發團…這 是否民主 .. 不.. 只能說有自由 .. 不能說有民主.. 哎… 想了又想 .. 竟自打咀巴地在未搞清我開始時提出 的問題又去討論一個體系有無民主 …

係 …其實 權限(permission) 係早期 Real Hacker 心目中都係一種 在上位既人抬高自己地位的一種特權.. 係電腦系統加上 權限係有違 Hacker 守則.. 如 Richard Stallman 以前都喜歡將自己系統改到無 password 都入到 Admin 用戶 。後唻學校方面禁止呢方面既改動.. 佢就令 password display 係公眾地方.. 令有 password 等於 無 password 。


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Based on Fluidity© 1998-2007 Roy Hiu-yeung Chan