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On Wed, 22 Dec 2010, xinyou yan wrote:
> Date: Wed, 22 Dec 2010 13:30:16 +0800
> From: xinyou yan <yxy.716@xxxxxxxxx>
> To: users@xxxxxxxxxxxxxxxxxxxxxxx
> X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00
> autolearn=unavailable version=3.2.5
> Subject: raid mdadm
>
> First I add sdb sdc sde fdisk to sdb1 sdc1 sdd1 sde1
> then
> # mdadm --create --level=5 --raid-devices=4 /dev/sd{b,c,d,e}1
> #mkdir /mnt/raid
> #mkfs.ext4 /dev/md0
> #vi /etc/fstab
>
> add /dev/md0 /mnt/raid ext4 defaults 1 2
>
> after reboot
>
> fsck.ext4: Invalid argument while trying to open 0
> /dev/md0:
> The superblock could not be read or does not describe a correct ext2
> filesystem. If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
> e2fsck -b 8193
> * Fsck could not correct all errors, manual repair needed
> [ !! ]
> Give root password for maintenance
> (or type Control-D for normal startup):
>
>
> I try e2fsck .however it dostn't work
>
>
> How can i fix the problem ï
Just change system id for each partition to fd (Linux raid autodetect).
Reboot.
Gabriel
- --
// Gabriel VLASIU
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