Hello,
I had a hard disk attached on an old RedHat PC formatted and mounted as ext3 filesystem. I removed the hard disk from the PC and plugged it in my Gentoo box. I tried to mount it as ext3 file system and got this error: -------------------------------------------------------------------------------- | # mount -t ext3 /dev/hdd1 /jukebox | mount: wrong fs type, bad option, bad superblock on /dev/hdd1, | missing codepage or other error | In some cases useful info is found in syslog - try | dmesg | tail or so -------------------------------------------------------------------------------- I then tried to see the partition type with fdisk: -------------------------------------------------------------------------------- | Command (m for help): p | | Disk /dev/hdd: 81.9 GB, 81964302336 bytes | 16 heads, 63 sectors/track, 158816 cylinders | Units = cylinders of 1008 * 512 = 516096 bytes | | Device Boot Start End Blocks Id System | /dev/hdd1 1 158816 80043232+ 83 Linux -------------------------------------------------------------------------------- My next step was to try to repair it with fsck.ext3: -------------------------------------------------------------------------------- | # fsck.ext3 -p /dev/hdd | fsck.ext3: Bad magic number in super-block while trying to open /dev/hdd | /dev/hdd: | 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 <device> -------------------------------------------------------------------------------- I tried what was written with e2fsck: -------------------------------------------------------------------------------- | # e2fsck -b 8193 /dev/hdd | e2fsck 1.39 (29-May-2006) | e2fsck: Bad magic number in super-block while trying to open /dev/hdd | | 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 <device> -------------------------------------------------------------------------------- After googling for a while, and not really finding an answer, I tried to mount it as readonly, and because of a typo, I mounted it as ext2... and it worked!!! I tried then to mount it normally, not anymore as read-only with ext2 format... and it worked!!! So my first question is: how come? I'm sure the filetype is ext3 as it can be seen in my old fstab: -------------------------------------------------------------------------------- | [...] | /dev/hdb5 swap swap defaults 0 0 | #/dev/hdc1 /jukebox ext3 defaults 1 1 --> this is the one ;-) | [...] -------------------------------------------------------------------------------- I thought maybe I could try to repair it with the normal fsck: -------------------------------------------------------------------------------- | # fsck /dev/hdd1 | fsck 1.39 (29-May-2006) | e2fsck 1.39 (29-May-2006) | /dev/hdd1: Attempt to read block from filesystem resulted in short read while reading block 525 | | /dev/hdd1: Attempt to read block from filesystem resulted in short read reading journal superblock | | fsck.ext3: Attempt to read block from filesystem resulted in short read while checking ext3 journal for /dev/hdd1 -------------------------------------------------------------------------------- Is there anything wrong with my hardware? Is it a super-block problem? Is there a way to solve it? Thank you in advance! Greg -- gentoo-user@gentoo.org mailing list
