啟動時候出現錯誤。

好好的系統突然啟動時出現了

***an error occurred during the file system check
***Dropping you to a shell;thesystem will reboot
***when you leave the shell.
Give root password for mainteance
(or type Control -D for normal startup)

解決方法,root密碼

於是檢查邏輯卷,提示:

# fsck.ext3 -f /dev/mapper/test-test 
e2fsck 1.38 (30-Jun-2005)
fsck.ext3: Attempt to read block from filesystem resulted in short read while trying to open /dev/mapper/test-test
Could this be a zero-length partition?

然後,查看了一下這個邏輯卷的資訊:

# mkfs.ext3 -n /dev/mapper/test-test 
mke2fs 1.38 (30-Jun-2005)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
6553600 inodes, 13107200 blocks
655360 blocks (5.00%) reserved for the super user
First data block=0
400 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
        4096000, 7962624, 11239424

然後,嘗試了一下,用備用超級塊來修復:

# fsck.ext3 -b 163840 /dev/mapper/test-test 
e2fsck 1.38 (30-Jun-2005)
fsck.ext3: Attempt to read block from filesystem resulted in short read while trying to open /dev/mapper/test-test
Could this be a zero-length partition?

結果仍然報錯。那就再試試重啟lvm服務吧,執行

/etc/init.d/lvm stop

/etc/init.d/lvm start

然後再執行:

# fsck.ext3 -b 163840 /dev/mapper/test-test 
e2fsck 1.38 (30-Jun-2005)
ext3 recovery flag is clear, but journal has data.
Recovery flag not set in backup superblock, so running journal anyway.
/dev/mapper/test-test: recovering journal
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

/dev/mapper/test-test: ***** FILE SYSTEM WAS MODIFIED *****
/dev/mapper/test-test: 31/6553600 files (3.2% non-contiguous), 1823265/13107200 blocks

執行/etc/init.d/checkfs.sh start,也可檢查、修復檔案系統。

執行

(Repair filesystem)# fdisk -l    檢視所有的/dev

之後依次 :
(Repair filesystem)#fsck -y /dev/sda2
(Repair filesystem)#fsck -y /dev/sda3
(Repair filesystem)#fsck -y /dev/sda4
(Repair filesystem)#fsck -y /dev/sda5

以後要養成正常關機的好習慣。。