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Re: GRUB2, GPT, mdadm & LVM

From: Sander Smeenk
Subject: Re: GRUB2, GPT, mdadm & LVM
Date: Fri, 19 Jul 2013 11:25:54 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Quoting Andrey Borzenkov (address@hidden):

> Yes. MD array will appear in the list as soon as at least one member
> was seen, but we need enough members so it becomes ready and can be
> scanned for LVM. May be extending ls so it can show diskfilter volume
> states would be useful.
> So the first think to check is how many physical disks are visible at
> grub prompt.

Only the first 8 disk (on the first controller?) show up in grub:

grub rescue> ls
(md/0) (hd0) (hd0,gpt2) (hd0,gpt1) (hd1) (hd1,gpt2) (hd1,gpt1) (hd2)
(hd2,gpt2) (hd2,gpt1) (hd3) (hd3,gpt2) (hd3,gpt1) (hd4) (hd4,gpt2)
(hd4,gpt1) (hd5) (hd5,gpt2) (hd5,gpt1) (hd6) (hd6,gpt2) (hd6,gpt1) (hd7)
(hd7,gpt2) (hd7,gpt1)

There should be another 8 disks. Now i wonder if this is GRUB at fault
or the controller not publishing its disks properly(?). I'll look into
the controller settings...

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