我每次运行 apt-get 命令时都会出现这个错误，我不知道是什么原因造成的，但我尝试了所有与此相关的解决方案，但仍然没有希望
root@vmi575272:/# sudo apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
debconf
Suggested packages:
debconf-doc debconf-utils libterm-readline-gnu-perl libgtk3-perl libnet-ldap-perl debconf-kde-helper
Recommended packages:
debconf-i18n
The following packages will be REMOVED:
unattended-upgrades
The following packages will be upgraded:
debconf
1 upgraded, 0 newly installed, 1 to remove and 845 not upgraded.
9 not fully installed or removed.
Need to get 0 B/144 kB of archives.
After this operation, 309 kB disk space will be freed.
Do you want to continue? [Y/n] Y
Preconfiguring packages ...
(Reading database ... 119035 files and directories currently installed.)
Removing unattended-upgrades (1.11.2) ...
/usr/bin/dpkg-maintscript-helper: 649: /usr/bin/dpkg-maintscript-helper: basename: Too many levels of symbolic links
dpkg: error processing package unattended-upgrades (--remove):
installed unattended-upgrades package post-removal script subprocess returned error exit status 127
Errors were encountered while processing:
unattended-upgrades
E: Sub-process /usr/bin/dpkg returned an error code (1)
以下是可能有帮助的输出
root@vmi575272:/# dpkg -S $(find -L /usr/bin -type l)
find: ‘/usr/bin/rpm’: Too many levels of symbolic links
find: ‘/usr/bin/rpmquery’: Too many levels of symbolic links
find: File system loop detected; ‘/usr/bin/X11’ is part of the same file system loop as ‘/usr/bin’.
find: ‘/usr/bin/basename’: Too many levels of symbolic links
find: ‘/usr/bin/rpmverify’: Too many levels of symbolic links
find: ‘/usr/bin/awk’: Too many levels of symbolic links
root@vmi575272:/# ls -ld / /usr /usr/ /usr/bin /usr/bin/ /usr/bin/X11 /usr/bin/X11/ /usr/bin/python
drwxr-xr-x 23 root root 4096 Sep 22 12:16 /
drwxr-xr-x 14 root root 4096 Apr 24 2021 /usr
drwxr-xr-x 14 root root 4096 Apr 24 2021 /usr/
drwxr-xr-x 2 root root 36864 Sep 12 14:55 /usr/bin
drwxr-xr-x 2 root root 36864 Sep 12 14:55 /usr/bin/
lrwxrwxrwx 1 root root 18 Sep 12 14:55 /usr/bin/python -> /usr/bin/python3.4
lrwxrwxrwx 1 root root 1 May 3 2017 /usr/bin/X11 -> .
drwxr-xr-x 2 root root 36864 Sep 12 14:55 /usr/bin/X11/
root@vmi575272:/# stat / /usr /usr/ /usr/bin /usr/bin/ /usr/bin/X11 /usr/bin/X11/ /usr/bin/python
File: /
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 2 Links: 23
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:41:41.547415955 +0200
Modify: 2022-09-22 12:16:04.369547625 +0200
Change: 2022-09-22 12:16:04.369547625 +0200
Birth: -
File: /usr
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 30670849 Links: 14
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 10:09:25.893927643 +0200
Modify: 2021-04-24 12:00:26.071463323 +0200
Change: 2021-04-24 12:00:26.071463323 +0200
Birth: -
File: /usr/
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 30670849 Links: 14
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 10:09:25.893927643 +0200
Modify: 2021-04-24 12:00:26.071463323 +0200
Change: 2021-04-24 12:00:26.071463323 +0200
Birth: -
File: /usr/bin
Size: 36864 Blocks: 80 IO Block: 4096 directory
Device: 802h/2050d Inode: 30670850 Links: 2
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:45:30.985976735 +0200
Modify: 2022-09-12 14:55:40.661784931 +0200
Change: 2022-09-12 14:55:40.661784931 +0200
Birth: -
File: /usr/bin/
Size: 36864 Blocks: 80 IO Block: 4096 directory
Device: 802h/2050d Inode: 30670850 Links: 2
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:45:30.985976735 +0200
Modify: 2022-09-12 14:55:40.661784931 +0200
Change: 2022-09-12 14:55:40.661784931 +0200
Birth: -
File: /usr/bin/X11 -> .
Size: 1 Blocks: 0 IO Block: 4096 symbolic link
Device: 802h/2050d Inode: 30681403 Links: 1
Access: (0777/lrwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:45:31.301974781 +0200
Modify: 2017-05-03 11:38:16.000000000 +0200
Change: 2021-04-30 00:24:41.712813306 +0200
Birth: -
File: /usr/bin/X11/
Size: 36864 Blocks: 80 IO Block: 4096 directory
Device: 802h/2050d Inode: 30670850 Links: 2
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:45:30.985976735 +0200
Modify: 2022-09-12 14:55:40.661784931 +0200
Change: 2022-09-12 14:55:40.661784931 +0200
Birth: -
File: /usr/bin/python -> /usr/bin/python3.4
Size: 18 Blocks: 0 IO Block: 4096 symbolic link
Device: 802h/2050d Inode: 30677150 Links: 1
Access: (0777/lrwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-10-11 15:45:31.485973650 +0200
Modify: 2022-09-12 14:55:40.661784931 +0200
Change: 2022-09-12 14:55:40.661784931 +0200
Birth: -
答案1
你有一个符号链接指向上级目录，这是一个循环。
您可以检查以ls -ld / /usr /usr/ /usr/bin /usr/bin/ /usr/bin/X11 /usr/bin/X11/ /usr/bin/python查看罪魁祸首在哪里。
更改ls -ld为stat&lstat以获取更多调试点数。
问题识别：
通过此数据，我们可以看到，在您的情况下，/ur/bin/X11循环指向自身。
这使得所有访问都循环进行，如下所示：
/ur/bin/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11/X11
解决方案 ：
我们可以通过（1）删除（2）指向其他东西来打破循环，从而摆脱循环。
（1）删除：
执行rm /usr/bin/X11或rm -f /usr/bin/X11
（2）指向其他东西来打破循环：
执行mkdir /usr/bin/X12，然后ln -s /usr/bin/X12 /usr/bin/X11
不管怎样，我们都会解决问题，apt-get 命令也会通过。
如果需要，我们可以稍后重新安装 X11。