东芝 C855 笔记本电脑上的 64 位 16.04 Ubuntu 我对 Linux 还不熟悉。
加密登录后突然无法启动任何东西，而是出现黑屏，如下所示：
[ 1.698476] EFI: Problem loading in-kernel X.509 certificate (-65)
[ 2.269858] [drm: intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[ 2.270428] [drm: intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[ 2.270483] [drm: intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter ‘help’ for a list of built-in commands
(initramfs) _
如果我输入帮助，我会得到以下信息：
内置命令：
. : [ alias break cd chdir command continue echo eval exec exit
export false getopts hash help history let local printf pwd read
readonly return set shift test times trap true type ulimit umask
unalias unset wait [ [[ acpid ash awk basename blockdev cat chmod
chroot chvt clear cmp cp cut deallocvt devmem df dnsdomainname
du dumpkmap echo egrep env expr false fbset fdflush fgrep find
fstrim grep gunzip gzip hostname hwclock ifconfig ip kill ln
loadfont loadkmap ls lzop lzopcat mkdir mkfifo mknod mkswap mktemp
modinfo more mount mv openvt pidof printf ps pwd readlink reset
switch_root sync tail tee test touch tr true tty umount uname
uniq unlzop wc wget which yes zcat
(initramfs) _
如果有人能提供任何信息，我将非常感激。谢谢