救命阿！9.04升级到9.10后发生错误，现在新力得，apt-get dist-upgrade都用不了

[dingyulong]

E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
user@dyl-laptop:~$ sudo apt-get dist-upgrade
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
user@dyl-laptop:~$ sudo dpkg --configure -a
正在设置 initramfs-tools (0.92bubuntu30) ...
update-initramfs: deferring update (trigger activated)

正在处理用于 initramfs-tools 的触发器...
update-initramfs: Generating /boot/initrd.img-2.6.28-12-generic
cpio: ./lib/udev/vol_id: Cannot stat: 没有该文件或目录
update-initramfs: failed for /boot/initrd.img-2.6.28-12-generic
dpkg: 子进程 post-installation script 返回了错误号 1

现在的状况是，可以用apt-get update命令，但无法升级，打开新力得报错提示：
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

[dingyulong]

突然又好了，使用sudo dpkg --configure -a顺利修复。
在这之间我唯一做过的事情就是启动了下unetbootin，想把以前备份的系统做在优盘上准备重装........