On 12/19/2018 04:43 AM, Mick wrote:
I ran ddrescue while the drive was still on the laptop. The clone was on the
USB caddy.
ACK
The disk block device is there and so is the first partition (only):
ls -la /dev/sdb*
brw-rw---- 1 root disk 8, 16 Dec 19 11:20 /dev/sdb
brw-rw---- 1 root disk 8, 17 Dec 19 11:20 /dev/sdb1
However, there's 6 partitions in total:
Disk /dev/sdb: 1953525168 sectors, 931.5 GiB
Model: LucidPort USB300
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 1A95F5D1-5630-4E06-9DC3-36841C786DDF
Partition table holds up to 128 entries
128 entries tells me that the disk has GPT partition table, not a
classis MS-DOS / PC-BIOS partition table.
This sounds like the (what I understand to be) the classic protection
partition that GPT fakes in PC-BIOS partition tables.
Do you have GPT partition support in your kernel?
I'm guessing the one partition that you see is the size of the entire drive.
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 4770 sectors (2.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 821247 400.0 MiB 2700 Basic data partition
2 821248 1353727 260.0 MiB EF00 EFI system partition
3 1353728 1615871 128.0 MiB 0C01 Microsoft reserved
...
4 1615872 1911737034 910.8 GiB 0700 Basic data partition
5 1911738368 1915412479 1.8 GiB 2700
6 1915412480 1953523711 18.2 GiB 0700 Basic data partition
I can see partition 4 I was trying to recover, but could not add it:
partx --show --nr 4 /dev/sdb
NR START END SECTORS SIZE NAME UUID
4 1615872 1911737034 1910121163 910.8G Basic data partition fea85fb3-
cfdb-4868-a1ad-bab264dad237
partx --add --nr 4 /dev/sdb
partx: /dev/sdb: error adding partition 4
partx --add /dev/sdb
partx: /dev/sdb: error adding partitions 1-6
That really sounds like your kernel doesn't have GPT support (loaded).
In any case, losetup with offset/size succeeded in mounting it and I was able
to access the fs on it.
Good.
--
Grant. . . .
unix || die
