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Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with so
From: |
Jeroen Dekkers |
Subject: |
Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID |
Date: |
Mon, 21 May 2007 13:08:50 +0200 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shijō) APEL/10.7 Emacs/22.0.95 (x86_64-pc-linux-gnu) MULE/5.0 (SAKAKI) |
At Sat, 19 May 2007 15:13:58 +0100,
Sam Morris wrote:
> In addition, it would be nice if the 'out of disk' error could be
> deferred until grub actually tries to read a block that is out of range,
> as grub-legacy does
The problem is that it actually tries to do that, because the RAID
superblock is located at the end of the partition.
> (even through it doesn't 'see' the RAID partition as
> such, I can still boot from it without complaint).
That's probably because you have RAID1. The only difference between a
RAID and a non-RAID is that there is a RAID superblock at the end, you
can just mount a RAID1 partition as normal. This is how grub legacy
was always able to boot from RAID1 partitions. This won't work with
RAID0 or RAID5 however.
> I wonder if d-i warns the user that they may be creating an unbootable
> system if the partition that contains /boot does not exist wholly within
> the first 7.8 GiB/128 GiB/128 PiB (depending on the addressing mode in
> use) of the disk? :)
I think that 7.8GiB limit has been gone for a long time now, I don't
think there will be a lot of installations on such machines. My guess
is that the 128 GiB limit is still a problem.
Jeroen Dekkers
- Re: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID, (continued)
- Message not available
- Message not available
- problem with RAID and LBA addressing, Robert Millan, 2007/05/19
- Message not available
- Re: problem with RAID and LBA addressing, Robert Millan, 2007/05/19
- Re: problem with RAID and LBA addressing, Yoshinori K. Okuji, 2007/05/19
- Re: problem with RAID and LBA addressing, Robert Millan, 2007/05/20
- Re: problem with RAID and LBA addressing, Amin Azez, 2007/05/21
- Re: problem with RAID and LBA addressing, Sam Morris, 2007/05/21
- Message not available
- Message not available
- Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID,
Jeroen Dekkers <=
- Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID, Sam Morris, 2007/05/21
- Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID, Jeroen Dekkers, 2007/05/21
- Re: Bug#423022: Bug#422851: "grub-probe -t partmap" doesn't work with software RAID, Sam Morris, 2007/05/21