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内核崩溃 - 未同步：VFS 无法挂载 Root 位于未知块 (0,0) 上

tag-icon • tag-icon boot grub2 kernel mount
内核崩溃 - 未同步：VFS 无法挂载 Root 位于未知块 (0,0) 上

更新 Ubuntu 服务器后，我收到 Kernel Panic 错误。通过 GRUB 菜单后，我收到以下错误。

我一直在该服务器上托管 mediawiki，但尚未备份。我不想丢失这些数据。

Kernel Panic - not syncing: VFS Unable to mount Root is on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-62-generic #102~precise1-Ubuntu
Hardware name: Dell Computer Corporation OptiPlex GX260 /OptiPlex GX260  , BIOS A)@ 07/25/2002
00000000 00000000 df437ec8 c16886a4 df437f14 df437eec c167d9da c187a7c4
c1b06c20 00000004 8eafa96c df437f14 fffffffa df72b000 df437f44 c1a0af88
c1868994 df437f14 df437f14 fffffffa 00000000 dfe5f560 c1868358 df72b000

我修理了雨靴，但是没有帮助 http://paste.ubuntu.com/12299996/

我尝试从中应用修复帖子 41930并且遇到了问题。

sudo fdisk -l
Disk /dev/loop0: 628.7 MiB, 659222528 bytes, 1287544 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 18.7 GiB, 20020396032 bytes, 39102336 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000cca65

Device     Boot  Start      End  Sectors  Size Id Type
/dev/sda1  *      2048   499711   497664  243M 83 Linux
/dev/sda2       501758 39100415 38598658 18.4G  5 Extended
/dev/sda5       501760 39100415 38598656 18.4G 8e Linux LVM

Disk /dev/mapper/LDPubuntu--vg-root: 17.9 GiB, 19222495232 bytes, 37543936 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/LDPubuntu--vg-swap_1: 512 MiB, 536870912 bytes, 1048576 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sdb: 3.7 GiB, 3942645760 bytes, 7700480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x1f80e0a4

Device     Boot Start     End Sectors  Size Id Type
/dev/sdb1  *     2048 7700479 7698432  3.7G  b W95 FAT32

Disk /dev/zram0: 246.5 MiB, 258420736 bytes, 63091 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

然后问题就开始了……

lubuntu@lubuntu:~$ sudo mount /dev/sda1 /mnt
lubuntu@lubuntu:~$ sudo mount --bind /dev /mnt/dev
mount: mount point /mnt/dev does not exist
lubuntu@lubuntu:~$ sudo mount --bind /proc /mnt/proc
mount: mount point /mnt/proc does not exist
lubuntu@lubuntu:~$ sudo mount --bind /sys /mnt/sys
mount: mount point /mnt/sys does not exist
lubuntu@lubuntu:~$ sudo mount --bind /run /mnt/run
mount: mount point /mnt/run does not exist
lubuntu@lubuntu:~$ sudo chroot /mnt
chroot: failed to run command ‘/bin/bash’: No such file or directory
lubuntu@lubuntu:~$ dpkg --list | grep linux-image
ii  linux-image-3.19.0-15-generic        3.19.0-15.15                        i386         Linux kernel image for version 3.19.0 on 32 bit x86 SMP
ii  linux-image-extra-3.19.0-15-generic  3.19.0-15.15                        i386         Linux kernel extra modules for version 3.19.0 on 32 bit x86 SMP
ii  linux-image-generic                  3.19.0.15.14                        i386         Generic Linux kernel image

下一步我应该尝试什么？

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