Help with external HD and reiserfs
Posted: 24 May 2013, 21:29
Long story short, the start of an external USB HD with reiserfs was clobbered by a util meant to copy linux images to flash drives (i.e. it created a FAT32 partition at the start of the disk.) Previous to this, the disk had only one large linux partition -- In my haste, I recreated the original partition type/size, believing the usual disk check *might* be able to recover/rebuild, but it did not.
That said, I'm trying to figure out how to rebuild/rescue what was on that drive. Running 'testdisk' shows the 'older' FAT partition, but also hints of my original partition (that I recognize by disk label.) Alas, it also says, 'the following partition can't be recovered..." What is it 'testdisk' is seeing that makes it decide not to offer up option to select that partition data to restore?
As an aside, I've cloned the disk using 'ddrescue' and I get the same error message (meaning, I'm optimistic about working with the cloned drive instead of the original.) I'm guessing that I need to somehow rebuild the superblock, but my original attempt to do this failed -- I believe it was because I was using an incorrect offset/block size.
Any tips/help would be greatly appreciated.
That said, I'm trying to figure out how to rebuild/rescue what was on that drive. Running 'testdisk' shows the 'older' FAT partition, but also hints of my original partition (that I recognize by disk label.) Alas, it also says, 'the following partition can't be recovered..." What is it 'testdisk' is seeing that makes it decide not to offer up option to select that partition data to restore?
As an aside, I've cloned the disk using 'ddrescue' and I get the same error message (meaning, I'm optimistic about working with the cloned drive instead of the original.) I'm guessing that I need to somehow rebuild the superblock, but my original attempt to do this failed -- I believe it was because I was using an incorrect offset/block size.
Any tips/help would be greatly appreciated.