我正在使用虚拟机SUSE Linux Enterprise Server 11. 在服务器发生一次严重关闭后，磁盘 ID已更改。我已在以下文件中将值更改并替换为新值：
/boot/grub/menu.lst
/boot/grub/device.map
因为/etc/fstab指定了 /dev/sda*，所以不需要更改。但是在启动过程中出现错误：
mount: special device /dev/u01/u01_lv does not exist
failed
lv显示器输出：
--- Logical volume ---
LV Name /dev/u01/u01_lv
VG Name u01
LV UUID JofgN1-bFZD-9VYg-WT49-UJOe-Swdq-aCx7dZ
LV Write Access read/write
LV Status NOT available
LV Size 40.00 GiB
Current LE 10240
Segments 1
Allocation inherit
Read ahead sectors auto
我用命令激活vgchange -ay并重新安装它。但是，当尝试在此磁盘上创建文件、删除文件、打开文本文件等时，命令挂起。
我也尝试过了dd if=/dev/sda4 of=/dev/null bs=1M并且效果很好。
光伏系统输出：
PV VG Fmt Attr PSize PFree
/dev/sda4 u01 lvm2 a- 40.00g 0
fdisk -l
Disk /dev/sda: 75.2 GB, 75161927680 bytes
255 heads, 63 sectors/track, 9137 cylinders, total 146800640 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 identifier: 0xaa571b60
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 208895 103424 83 Linux
/dev/sda2 208896 58718207 29254656 83 Linux
/dev/sda3 58718208 62910463 2096128 82 Linux swap / Solaris
/dev/sda4 62910464 146800639 41945088 8e Linux LVM
Disk /dev/mapper/u01-u01_lv: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders, total 83886080 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 identifier: 0x00000000
Disk /dev/mapper/u01-u01_lv doesn't contain a valid partition table
dmsetup 信息 /dev/mapper/u01-u01_lv
Name: u01-u01_lv
State: ACTIVE
Read Ahead: 1024
Tables present: LIVE
Open count: 1
Event number: 0
Major, minor: 253, 0
Number of targets: 1
UUID: LVM-LvAgWmBsFAxRrv0YEosS6WuUcfKwnsa9JofgN1bFZD9VYgWT49UJOeSwdqaCx7dZ