[GTALUG] restore GPT partition table?

Jamon Camisso jamon.camisso at utoronto.ca
Tue Oct 25 18:06:02 EDT 2016


On 25/10/16 22:06, Lennart Sorensen via talk wrote:
> 
> Luckily gpt has two copies.  One at the start of the disk and one at the end.
> 
> Any gpt compatible partition tool should actually offer to copy the
> backup from the end of the device.
<snip>
> Found valid GPT with protective MBR; using GPT.
> Disk /dev/loop0: 204800 sectors, 100.0 MiB
> Logical sector size: 512 bytes
> Disk identifier (GUID): 5946A311-C895-4DAE-94CF-9C96EB8E14C1
> Partition table holds up to 128 entries
> First usable sector is 34, last usable sector is 204766
> Partitions will be aligned on 2048-sector boundaries
> Total free space is 2014 sectors (1007.0 KiB)
> 
> Number  Start (sector)    End (sector)  Size       Code  Name
>    1            2048          204766   99.0 MiB    8300  Linux filesystem
> 
> 
> So seems simple enough to recover the partition table from the backup.

You've outdone yourself and all of us. I had no idea about that backup
GPT location. Maybe I should learn to appreciate GPT a little more?

TIL!



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