我有一个安装 Trusty 的预置文件，但安装时出现以下错误：
Jul 22 17:52:42 in-target: Setting up sysv-rc (2.88dsf-41+deb7u1) ...
Jul 22 17:52:42 in-target: info: Reordering boot system, log to
/var/lib/insserv/run-20140722T1052.log
Jul 22 17:52:42 in-target: error: Something failed while migrating.
Jul 22 17:52:42 in-target:
Jul 22 17:52:42 in-target: error: Unable to migrate to dependency based boot
sequencing.
Jul 22 17:52:42 in-target:
Jul 22 17:52:42 in-target: See
http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot for
Jul 22 17:52:42 in-target: more information about dependency based boot
sequencing. To
Jul 22 17:52:42 in-target: reattempt the migration process run 'dpkg --
configure sysv-rc'.
Jul 22 17:52:42 in-target:
Jul 22 17:52:42 in-target: dpkg: error processing package sysv-rc (--
configure):
Jul 22 17:52:42 in-target: subprocess installed post-installation script
returned error exit status 1
Jul 22 17:52:42 in-target: Errors were encountered while processing:
Jul 22 17:52:42 in-target: sysv-rc
Jul 22 17:52:42 in-target: E
Jul 22 17:52:42 in-target: :
Jul 22 17:52:42 in-target: Sub-process /usr/bin/dpkg returned an error code
(1)
Jul 22 17:52:42 in-target:
Jul 22 17:52:42 in-target: Setting up sysv-rc (2.88dsf-41+deb7u1) ...
Jul 22 17:52:42 main-menu[219]: WARNING **: Configuring 'pkgsel' failed with
error code 100
Jul 22 17:52:42 main-menu[219]: WARNING **: Menu item 'pkgsel' failed.
Jul 22 17:52:56 main-menu[219]: INFO: Modifying debconf priority limit from
'high' to 'medium'
Jul 22 17:52:56 debconf: Setting debconf/priority to medium
Jul 22 17:52:59 main-menu[219]: INFO: Menu item 'save-logs' selected
在我看来，“某事失败”是非常模糊的。有人知道会发生什么吗？我尝试进入 shell 并执行以下操作，dpkg --configure sysv-rc但我猜此时 dpkg 尚未安装。任何帮助将非常感激！