我尝试更新 Ubuntu，但系统似乎无法再工作。关闭系统似乎也不可能。因此我按下电源按钮希望重新启动，而我担心的事情发生了：系统不再启动。
Target file system doesn't have requested /sbin/init.
/bin/sh: 0: Can't open splash
[3.456425] Kernel panic - not syncing: attempted to kill init! exitcode=0x00007f00
[3.456425]
[3.4556471] CPU: 1 PID: 1 Comm: sh Not Tainted 3.13.0-92-gerneric #139-Ubuntu
[3.4565101]Hardware name: Dell Inc. OptiPlex 745
etc...
Call Trace
dump_stack
panic
not exit
do_group_exit
SyS_exit_group
system_all_fastpath
我应该怎么办？