上周升级系统后，发现 kde 下 dolphin 无法自动挂载 U盘
提示：
An error occurred while accessing 'Removable Media' the system responded:
An unspecified error has occurred : Not Authorized
google 错误信息，搜到这篇贴子，提到 3点
https://bbs.archlinux.org/viewtopic.php?id=136681
1. 我现在用的用户没有在 storage 用户组，但是升级之前都 OK 的，这个应该补充关键
2. /usr/share/polkit-1/actions/org.freedesktop.udisks.policy 这个文件
但是帖子里面没有给出有用的线索为什么是它惹的祸，我也没动它
3. 提到 ck-launch-session 这个，slim 和 ~/.xinitrc 文件都可以
定义启动桌面管理器 session 前，启用这个这个进程，fcitx 会依赖它
之后看到了这段提示:
Note: slim is ConsoleKit capable since version 1.3.3.
Unless you happen to run an old version, you must no longer include 'ck-launch-session'
in your .xinitrc or slim.conf login_cmd.
原来 slim 后来的版本默认已经内置启用 ConsoleKit
不需要手动在 slim.conf 或 ~/.xinitrc 中制定 ck-launch-session 了
wiki 中也在 NOTE 中标记了这个变化 https://wiki.archlinux.org/index.php/SLiM
之后在 ~/.xinitrc 中去掉 'ck-launch-session' 后，启动后 dolphin 可以自动挂载了
2012年6月25日 05:49
我也遇到类似的问题了（udisks 不能挂载），同样去 BBS 上看到并解决 ^_^
2012年7月07日 16:29
百合，这个些原理什么，其实还没咋深入了解呢，就单单停留在 wiki 按部就班上面，有时间需要深入学习一下的阿
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