今天我无缘无故无法启动 Ubuntu 14.04。启动画面首先显示“安装 / 时发生错误”。
我尝试进行文件系统检查：
ubuntu@ubuntu:~$ sudo fsck.ext4 -cf /dev/sda1
e2fsck 1.42.9 (4-Feb-2014)
Checking for bad blocks (read-only test): done
Ubuntu: Updating bad block inode.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Ubuntu: ***** FILE SYSTEM WAS MODIFIED *****
Ubuntu: 651168/6832128 files (0.9% non-contiguous), 17733945/27304931 blocks
这是我的 fstab 文件：
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=89bdbb1b-ffb5-4708-b733-6de73bfae36f / ext4 errors=remount-ro 0 1
# swap was on /dev/sda2 during installation
#UUID=df5a6ac8-3fe7-427e-bb7e-b7c5051bcbd8 none swap sw 0 0
/dev/mapper/cryptswap1 none swap sw 0 0
现在，如果我尝试启动它，这个启动画面只会闪烁一瞬间。然后显示黑屏，系统不响应任何内容。
也许 dmesg 文件会对你有帮助（我不知道该寻找什么）http://pastebin.com/0VMMgZCD或 boot.log 文件http://pastebin.com/m899t2Yn
我可以为您提供任何进一步的信息，请告诉我。
有人知道如何修复它吗？
谢谢！Tomas M.