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桌機的 Ubuntu 12.04 升級到 14.04

拖了好久,總算利用連假的時間 (而且在台灣!) 把桌機的 Ubuntu 12.04 (Precise) 升級到 14.04 (Trusty)。整個升級的過程果然充滿了地雷... XD

這邊當作雜記記錄下來,希望對之後的人升級有幫助。其中比較重要的前提是,我是用 Unity,所以升級的流程大致照著官方的指示做就可以了,對於使用 GNOME 的人,需要再多研究看看?

升級前的注意事項:

  • 假設當初有裝很多 UNSUPPORTED 的 repository (這邊是指官方的 *.archive.ubuntu.com 裡有一些沒有被官方支援的項目,像是 universe 與 multiverse),要記得到 /etc/apt/sources.list 裡暫時註解掉。
  • 跑 do-release-upgrade 時的語系要用英語系 (Cen_US 之類的,像是 env LANG=C LANGUAGE=C LC_ALL=C do-release-upgrade 這樣執行),不然會造成 Python 的錯誤訊息 (decode error,因為是用 ascii 去解),原因是 /etc/apt/sources.list.d/ 下面在替換 precise -> trusty 時會增加註解,而這個註解在 zh_TW.UTF-8 狀態下會出現中文 UTF-8,於是就造成 parser 爛掉... XD

升級完成後的注意事項:

  • Fix Ubuntu 把該關的關掉。
  • /etc/apt/sources.list.d/ 下面的東西整理過,有些是 backport 回 12.04 的,在 14.04 就可以省略,有些則是要找替代方案。

升完後還沒解決的問題:

  • scim 的狀態很詭異,在 Terminal 裡有時候可以用但有時候不能用,而在 Google Chrome 裡面是完全不能用。目前暫時拿 ibus 撐著。
  • 天氣的 indicator 好像要換掉,暫時沒有花時間研究。

對於沒有技術背景的人來說,升級的工程太浩大 (有大量的錯誤訊息要查,然後一個一個解決),還是建議當 Windows 的方法處理會比較好... (重灌未必比較慢,真的...)

在還沒摸熟前,公司的電腦應該還是維持在 12.04 吧,不然就是等下次連假的時候弄...

各種有趣的小板子...

Slashdot 的「Ringing In 2015 With 40 Linux-Friendly Hacker SBCs」報導了「Ringing in 2015 with 40 Linux-friendly hacker SBCs」這篇文章,裡面介紹了不少可以跑 Linux 的小板子。

還蠻多有趣的板子,大多都是 ARM,不過還是有一些 x86 的板子可以玩,另外還有一張 MIPS 的板子...

另外翻了翻還看到 SAMA5D3 Xplained 這張有兩個網卡的板子 (不過是 GE + FE),好像可以拿來做些有趣的東西?

不過上次從 zonble 那邊弄來的 Raspberry Pi 好像都還沒動...

開放式辦公室 (Open Plan Office) 的問題

Open plan 的兩種型態,取自維基百科條目:

不過在 IT 產業實做後效果一直是個疑問。而 2014 年年初時,有人寫文章拿出來討論,並且給出負面的結論:「The Open-Office Trap」。

主要是因為開放空間帶來無形的壓力,同時也容易被干擾:

In 2011, the organizational psychologist Matthew Davis reviewed more than a hundred studies about office environments. He found that, though open offices often fostered a symbolic sense of organizational mission, making employees feel like part of a more laid-back, innovative enterprise, they were damaging to the workers’ attention spans, productivity, creative thinking, and satisfaction. Compared with standard offices, employees experienced more uncontrolled interactions, higher levels of stress, and lower levels of concentration and motivation. When David Craig surveyed some thirty-eight thousand workers, he found that interruptions by colleagues were detrimental to productivity, and that the more senior the employee, the worse she fared.

另外對於健康方面,開放空間互相感染的問題:

An open environment may even have a negative impact on our health. In a recent study of more than twenty-four hundred employees in Denmark, Jan Pejtersen and his colleagues found that as the number of people working in a single room went up, the number of employees who took sick leave increased apace. Workers in two-person offices took an average of fifty per cent more sick leave than those in single offices, while those who worked in fully open offices were out an average of sixty-two per cent more.

而最近 (2014 年年底) 又被提出來,基本上是引用 2014 年年初那篇文章的負面分析:「Google got it wrong. The open-office trend is destroying the workplace.」。

文章裡提出幾個 workaround (因為辦公室改建的成本...),包括建立 private area:

For one, they should create more private areas — ones without fishbowl windows.

另外也可以從個人習慣改善。如果被打斷了,就先做一些其他的事情:

For instance, when a colleague has on headphones, it’s a sign that you should come back another time or just send an e-mail.

以及利用一些政策避開問題,像是在家工作降低被打擾的機會:

On the other hand, companies could simply join another trend — allowing employees to work from home. That model has proven to boost productivity, with employees working more hours and taking fewer breaks. On top of that, there are fewer interruptions when employees work remotely.

不過這些方法偏向 workaround,如果辦公室可以在規劃時就避開的話會更好,像是這樣:


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