UbuntuにJava入れた
■背景
Scalaを触り始めて1ヶ月位経つが、殆ど勉強が進んでいない。言い訳をすると、開発環境が整わないと勉強のスピードが上がらないタイプ。
sbtの使い方は少し分かってきたので、あとはコードを書く環境を整える必要がある。Eclipse + Scala pluginに挫折したのでEmacsのプラグインであるensimeなるものを試してみることにした。
Windowsでやってもいいけど、Emacs使いの大半はUNIX系で使ってるだろうから、Windows固有の問題とかがありそうなのでパス。じゃLinuxでと思ったが、ensimeの前提としてemacs 22か23が必要。CentOSに入っているemacsは21で、バージョンアップも面倒そうなのでUbuntuが入っているVPSを使う事にした。
で、そもそもScalaを動かすにはJavaが必要なので、UbuntuにJavaを入れる必要がある。
とまぁかなり長い前振り。
■やること
たった1行だけ…
apt-get install sun-java6-jdk
ちなみに、Javaはsun-java6-jdkと、オープンソースライセンスのopenjdk-6-jdkの2種類がある。
環境：Ubuntu 9.0.4
■作業ログ
sun-java6-jdkを入れようとすると、関連パッケージが沢山インストールされる（？）っぽい。
$ sudo apt-get install sun-java6-jdk Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: avahi-daemon consolekit dbus dbus-x11 defoma gsfonts gsfonts-x11 java-common libavahi-common-data libavahi-common3 libavahi-core5 libdaemon0 libfontenc1 libfreetype6 libice6 libltdl7 libnss-mdns libsm6 libxfont1 libxi6 libxt6 libxtst6 odbcinst1debian1 sun-java6-bin sun-java6-jre unixodbc xfonts-encodings xfonts-utils Suggested packages: avahi-autoipd defoma-doc psfontmgr x-ttcidfont-conf dfontmgr libft-perl equivs binfmt-support sun-java6-demo openjdk-6-doc sun-java6-source sun-java6-plugin ia32-sun-java6-plugin sun-java6-fonts ttf-baekmuk ttf-unfonts ttf-unfonts-core ttf-kochi-gothic ttf-sazanami-gothic ttf-kochi-mincho ttf-sazanami-mincho ttf-arphic-uming libmyodbc odbc-postgresql libct1 The following NEW packages will be installed: avahi-daemon consolekit dbus dbus-x11 defoma gsfonts gsfonts-x11 java-common libavahi-common-data libavahi-common3 libavahi-core5 libdaemon0 libfontenc1 libfreetype6 libice6 libltdl7 libnss-mdns libsm6 libxfont1 libxi6 libxt6 libxtst6 odbcinst1debian1 sun-java6-bin sun-java6-jdk sun-java6-jre unixodbc xfonts-encodings xfonts-utils 0 upgraded, 29 newly installed, 0 to remove and 12 not upgraded. Need to get 61.5MB of archives. After this operation, 174MB of additional disk space will be used. Do you want to continue [Y/n]? Y Get:1 http://us.archive.ubuntu.com jaunty/main libice6 2:1.0.4-1 [50.6kB] Get:2 http://us.archive.ubuntu.com jaunty/main libsm6 2:1.1.0-1 [23.6kB] Get:3 http://us.archive.ubuntu.com jaunty/main libxt6 1:1.0.5-3ubuntu1 [190kB] Get:4 http://us.archive.ubuntu.com jaunty/main java-common 0.30ubuntu4 [80.3kB] Get:5 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-jre 6.20dlj-0ubuntu1.9.04 [6412kB] Get:6 http://us.archive.ubuntu.com jaunty/main libltdl7 2.2.6a-1ubuntu1 [295kB] Get:7 http://us.archive.ubuntu.com jaunty/main odbcinst1debian1 2.2.11-16build3 [71.1kB] Get:8 http://us.archive.ubuntu.com jaunty/main unixodbc 2.2.11-16build3 [315kB] Get:9 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-bin 6.20dlj-0ubuntu1.9.04 [27.7MB] Get:10 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-jdk 6.20dlj-0ubuntu1.9.04 [20.9MB] Get:11 http://us.archive.ubuntu.com jaunty/main libavahi-common-data 0.6.23-4ubuntu4 [31.8kB] Get:12 http://us.archive.ubuntu.com jaunty/main libavahi-common3 0.6.23-4ubuntu4 [25.5kB] Get:13 http://us.archive.ubuntu.com jaunty/main libavahi-core5 0.6.23-4ubuntu4 [121kB] Get:14 http://us.archive.ubuntu.com jaunty/main libdaemon0 0.13-2 [15.0kB] Get:15 http://us.archive.ubuntu.com jaunty-updates/main consolekit 0.3.0-2ubuntu4 [104kB] Get:16 http://us.archive.ubuntu.com jaunty-updates/main dbus 1.2.12-0ubuntu2.1 [210kB] Get:17 http://us.archive.ubuntu.com jaunty/main avahi-daemon 0.6.23-4ubuntu4 [67.6kB] Get:18 http://us.archive.ubuntu.com jaunty-updates/main dbus-x11 1.2.12-0ubuntu2.1 [42.2kB] Get:19 http://us.archive.ubuntu.com jaunty/main defoma 0.11.10-0.2ubuntu1 [101kB] Get:20 http://us.archive.ubuntu.com jaunty/main gsfonts 1:8.11+urwcyr1.0.7~pre44-3 [3322kB] Get:21 http://us.archive.ubuntu.com jaunty/main libfontenc1 1:1.0.4-3 [19.5kB] Get:22 http://us.archive.ubuntu.com jaunty-updates/main libfreetype6 2.3.9-4ubuntu0.3 [407kB] Get:23 http://us.archive.ubuntu.com jaunty/main libxfont1 1:1.3.3-1ubuntu1 [156kB] Get:24 http://us.archive.ubuntu.com jaunty/main xfonts-encodings 1:1.0.2-3 [584kB] Get:25 http://us.archive.ubuntu.com jaunty/main xfonts-utils 1:7.4+1ubuntu1 [97.3kB] Get:26 http://us.archive.ubuntu.com jaunty/main gsfonts-x11 0.21 [10.5kB] Get:27 http://us.archive.ubuntu.com jaunty/main libnss-mdns 0.10-3ubuntu2 [26.2kB] Get:28 http://us.archive.ubuntu.com jaunty-updates/main libxi6 2:1.2.0-1ubuntu1.1 [29.2kB] Get:29 http://us.archive.ubuntu.com jaunty/main libxtst6 2:1.0.3-1ubuntu2 [14.2kB] Fetched 61.5MB in 16s (3708kB/s) Preconfiguring packages ... 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