Partitions messed up. Need to modify partition table.

[Zero-0-Effect]

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1         173     1386913   83  Linux
/dev/hda2            1217        2434     9775552+  83  Linux
Partition 2 does not end on cylinder boundary.
/dev/hda3            2090        3307     9775552+  83  Linux
Partition 3 does not end on cylinder boundary.
/dev/hda4            3649       24058   163934623   83  Linux

Is how my partition table looks currently.. not sure what happened to cause this but I hope the data is still there.

It should look something closer to this:

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1        1216     9775552+  83  Linux
/dev/hda2            1217        2434     9775552+  83  Linux
/dev/hda3            2435        3648     9775552+  83  Linux
/dev/hda4            3649       24058   163934623   83  Linux

First three partitions are 10 gi and the 4th is the rest of the space. Its a 200gig drive.


Is there a command I can use to modify the table so it looks this way???

If I just delete and re-add the partitions correctly will it destory the filesystem on those partitions?

[rcgreen]

Yes, it will destroy the file systems on any partition you change,
unless you use software that can non-destructively resize partitions.
Partition magic, or an open source equivalent maybe.

[Zero-0-Effect]

Currently disk looks like this, used fdisk to resize partitions. Was able to get partition 1 and 3 back.. did a fsck on them and got them back, partition 2 I believe is empty anyway so no big deal about it. Cant seem to get partition 4 back.

Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1        1216     9767488+  83  Linux
/dev/hda2            1217        2434     9783585   83  Linux
/dev/hda3            2435        3648     9751455   83  Linux
/dev/hda4            3649       24058   163934623   83  Linux

I know the first 3 partitions were created at 10 gig ... so I am going to delete all partitions and recreate the 4 again.. hopefully the start/end values will be the same as before and I can acess hda4

[Zero-0-Effect]

Got it all back! All 4 partitions were recognized correctly and little to no data loss on hda4...

Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1        1217     9775521   83  Linux
/dev/hda2            1218        2434     9775552+  83  Linux
/dev/hda3            2435        3651     9775552+  83  Linux
/dev/hda4            3652       24321   166031775   83  Linux

Apparently using fdisk does not destroy any of the data or the filesystem on the drive when you change the partition size.

[mahlerfan]

Apparently using fdisk does not destroy any of the data or the filesystem on the drive when you change the partition size.

I think that depends on the file system used. NTFS and ext3 are really robust with resizing, other file systems can simply be corrupted by doing that.