9/22/07

Resurrect my old ide disk

I've got the problem with my old ide harddrive fews day ago. At last i found that it's ide cable is bad and that destroy the partition table. Anyway today after recover and backup the files, I create new partition table with fdisk and here is the new table.

Disk /dev/hda: 60.0 GB, 60022480896 bytes
16 heads, 63 sectors/track, 116301 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

Device Boot Start End Blocks Id System
/dev/hda1 1 58130 29297488+ 7 HPFS/NTFS
/dev/hda2 58131 116301 29318184 83 Linux
50/50 ntfs and ext3 should be fair :). After repartition, Ubuntu know only hda1 as 10GB partition[my old config]. what i forget? May be need to fotmat it first. I'm not sure how to format ntfs partition in ubuntu so i reboot to winxp, format it then turn back to ubuntu again. Now I format hda2 like this.
pnix@pnix-a7n:~$ sudo mke2fs -j /dev/hda2
mke2fs 1.40-WIP (14-Nov-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
3670016 inodes, 7329546 blocks
366477 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
224 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

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 33 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
pnix@pnix-a7n:~$
Last thing add 2 new partition to fstab to let it automount.First create mount point with 'sudo mkdir /media/hda2'[hda1 already exist] then find the uuid and edit /etc/fstab like this.
# /dev/hda1
UUID=9EF07DDDF07DBBD9 /media/hda1 ntfs defaults,nls=utf8,umask=007,gid=46 0 1
# /dev/hda2
UUID=30bf1301-3dbd-47f0-b80e-b68047358a53 /media/hda2 ext3 defaults 0 1
After reboot hda2 is mounted but no write permission for me, still has other thing to fix. I follow this guide and run command below
pnix@pnix-a7n:~$ sudo chgrp plugdev /media/hda2
pnix@pnix-a7n:~$ sudo chmod g+w /media/hda2
pnix@pnix-a7n:~$ sudo chmod +t /media/hda2
to change group, add write permission and sticky bit. And that it my old ide disk is come back and ready for command.

note: "chmod +t" adds the sticky bit, so that people can only delete their own files and sub-directories in a directory

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