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apt-get 升级失败，显示“权限被拒绝”

tag-icon • tag-icon installation apt gtk dpkg
apt-get 升级失败，显示“权限被拒绝”

我最近安装了 12.04，一切似乎都很顺利，直到今天尝试运行时出现一系列错误apt-get upgrade：

$ sudo apt-get upgrade 

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  visual-regexp
The following packages will be upgraded:
  dkms firefox firefox-globalmenu firefox-gnome-support 
  firefox-locale-en gnome-games-data gnome-sudoku gnomine
  google-chrome-stable libglu1-mesa libglu1-mesa:i386 libmysqlclient18:i386 
  mahjongg mysql-common tk8.5 vino
16 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
11 not fully installed or removed.
Need to get 0 B/67.4 MB of archives.
After this operation, 2,890 kB of additional disk space will be used.
Do you want to continue [Y/n]? 
(Reading database ... 
dpkg: warning: files list file for package `tk8.5' missing, assuming package has no     files currently installed.
(Reading database ... 235237 files and directories currently installed.)
    Removing visual-regexp ...
dpkg (subprocess): unable to execute installed post-removal script (/var/lib/dpkg/info/visual-regexp.postrm): Permission denied
dpkg: error processing visual-regexp (--remove):
 subprocess installed post-removal script returned error exit status 2
Errors were encountered while processing:
     visual-regexp
E: Sub-process /usr/bin/dpkg returned an error code (1)

一切似乎都是从这个臭名昭著的错误开始的：

dpkg: warning: files list file for package `tk8.5' missing, 
assuming package has no files currently installed.

这可能是由于我的安装引起的visual-regexp- 我现在无法删除它。

我尝试了几种修复方法，包括：

sudo apt-get -f install
sudo dpkg --configure -a
sudo apt-get --fix-missing upgrade

和其他人试图效仿这个答案，但无济于事。

另外，我不太清楚 可能存在什么问题permission，因为我显然以 apt-get 的形式运行sudo：

$ ll /var/lib/dpkg/info/visual-regexp.postrm
-rwxr-xr-x 1 root root 160 Jun 24  2011 /var/lib/dpkg/info/visual-regexp.postrm

另外，请注意这11 not fully installed or removed.是由于以前的失败造成的apt-get upgrade：有什么办法可以恢复吗？

提前谢谢你，马可。

答案1

OP 发帖：

因此，我突然意识到，权限被拒绝的事情可能与禁止执行选项/etc/fstab（我正在安装/var在与不同的磁盘上/）。

事实证明我使用了以下安装选项：

UUID=b5ae50cf-58e6-46f8-8313-6c1492dcc8ad /var ext4 defaults,users 0 0

并且，虽然defaults暗示exec，users但反而暗示noexec-因为后者是最后一个，它将覆盖前一个。

改为defaults 仅有的现在一切都变得轻松多了，有了 apt-get。把它留在这里，希望它能帮助到其他人。

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