我的托管公司将我的虚拟服务器移至“公共云”。此后，我的服务器瘫痪了。当我尝试启动时（使用托管公司的 Web 界面），它告诉我：
fsck from util-linux 2.20.1
/dev/vda1: clean, 380025/5242880 files, 18180399/20971264 blocks
mount: according to mtab, tmpfs is already mounted on /dev/shm
mountall: mount /dev/shm [306] terminated with status 1
udevd[294]: specified group 'lp' unknown
swapon: /swapfile: swapon failed: Device or resource busy
mountall: swapon /swapfile [437] terminated with status 255
mountall: Problem activating swap: /swapfile
swapon: /swapfile: swapon failed: Device or resource busy
mountall swapon /swapfile [438] terminated with status 255
mountall: Problem activating swap: /swapfile
WARNING: All config files need .conf: /etc/modprobe.d/aliases, it will be ignored in a future release
WARNING: All config files need .conf: /etc/modprobe.d/aliases, it will be ignored in a future release
WARNING: All config files need .conf: /etc/modprobe.d/aliases, it will be ignored in a future release
The disk drive for /configdrive is not ready yet or not present.
Continue to wait, or Press S to skip mounting or M for manual recovery
我不知道按 S 键是否会搞砸任何事情。如果我按 M 键，我不知道之后该做什么。
欢迎提出建议。
仅供参考，当我启动时，它首先显示以下内容。然后显示上述内容。
GNU GRUB version 1.99-21ubuntu3.19
Ubuntu, with Linux 3.5.0-54-generic
Ubuntu, with Linux 3.5.0-54-generic (recovery mode)
Previous Linus versions
Memory test (memtest86+)
Memory test (memtest86+, serial console 115200)
我选择了第一行：Ubuntu，Linux 3.5.0-54-generic
我有 Ubuntu 版本 12.04。