Re: Installation tests with GRUB on GPT disks
On 05/16/2018 02:48 PM, John Paul Adrian Glaubitz wrote:
>> During my testing end of February/beginning of March this partition was needed, because otherwise the gpt label was corrupted after grub-install ran IIRC - i.e. similar to what you saw. I don't know the exact size requirements for this partition though, so just rounded up to 10 MiB which worked fine.
> Ah, this makes sense. I'll see whether I can add this type manually.
Ok, just adding a 10 MB bios_grub partition resolved the issue and GRUB
installed without any problems :).
root@debian:~# parted /dev/vdiska
GNU Parted 3.2
Welcome to GNU Parted! Type 'help' to view a list of commands.
Model: Unknown (unknown)
Disk /dev/vdiska: 17.2GB
Sector size (logical/physical): 512B/8192B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 10.5MB 9437kB bios_grub
2 10.5MB 15.2GB 15.2GB ext4
3 15.2GB 17.2GB 1968MB linux-swap(v1)
>> I submitted a patch () which adds specific recipes for gpt capable systems which add the additional 10 MiB partition. Partman than creates this partition after the first 1 MiB on the disk in question. The post also contains an alternative approach which might also work (i.e. just extending the sparc recipes).
> Yes, there are some things I wanted to test first before adopting the patch.
Adding those recipes for partman-auto will resolve the issue. However, we
should probably add a warning like we had for SILO which reminds users
they have to add a bios_grub partition on a GPT machine:
Does any of the other architectures which use GRUB require a bios_grub partition?
If yes, we should just add sparc and sparc64 to this test. Otherwise, we
will have to add it from scratch, probably to the grub-installer package.
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - firstname.lastname@example.org
`. `' Freie Universitaet Berlin - email@example.com
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