运行时：
apt-get update && apt-get upgrade
在 12.04.3 LTS，内核 3.2.0-35-virtual
我得到：
Preparing to replace base-files 6.5ubuntu6.6 (using .../base-files_6.5ubuntu6.7_amd64.deb) ...
Unpacking replacement base-files ...
dpkg: error processing /var/cache/apt/archives/base-files_6.5ubuntu6.7_amd64.deb (--unpack):
unable to stat `./mnt' (which I was about to install): Transport endpoint is not connected
No apport report written because MaxReports is reached already
Processing triggers for man-db ...
Processing triggers for install-info ...
Errors were encountered while processing:
/var/cache/apt/archives/base-files_6.5ubuntu6.7_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
输出df -ha：
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 99G 9.1G 85G 10% /
none 0 0 0 - /proc
sysfs 0 0 0 - /sys
none 0 0 0 - /sys/fs/fuse/connections
none 0 0 0 - /sys/kernel/debug
none 0 0 0 - /sys/kernel/security
udev 819M 12K 819M 1% /dev
devpts 0 0 0 - /dev/pts
tmpfs 331M 192K 331M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 827M 0 827M 0% /run/shm
cgroup 827M 0 827M 0% /sys/fs/cgroup
cgroup 0 0 0 - /sys/fs/cgroup/cpuset
cgroup 0 0 0 - /sys/fs/cgroup/cpu
cgroup 0 0 0 - /sys/fs/cgroup/cpuacct
cgroup 0 0 0 - /sys/fs/cgroup/memory
cgroup 0 0 0 - /sys/fs/cgroup/devices
cgroup 0 0 0 - /sys/fs/cgroup/freezer
cgroup 0 0 0 - /sys/fs/cgroup/blkio
cgroup 0 0 0 - /sys/fs/cgroup/perf_event
输出mount：
/dev/xvda1 on / type ext4 (rw)
none on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,mode=755)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset,clone_children)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu,clone_children)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct,clone_children)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,relatime,memory,clone_children)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices,clone_children)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,relatime,freezer,clone_children)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,relatime,blkio,clone_children)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,relatime,perf_event,clone_children)
我尝试过在这里找到的解决方案，例如：
apt-get clean
dpkg --configure -a
dpkg -i --force-overwrite /var/cache/apt/archives/base-files_6.5ubuntu6.7_amd64.deb
rm /var/cache/apt/archives/base-files_6.5ubuntu6.7_amd64.deb
我还想提一下，我正在运行一个 LXC 容器。有人知道我该如何解决这个问题吗？
答案1
此错误消息表明 /mnt 上的非默认文件系统处于问题状态。base-files 软件包在文件系统上提供了 /mnt 目录，因此 dpkg 假定它应该能够在必要时解压该目录。您需要在系统上卸载 /mnt 才能升级 base-files。
看https://bugs.launchpad.net/ubuntu/+source/base-files/+bug/1352012了解更多信息。