Grub2 + mdadm RAID1 = cycle reset before grub menu :(

Quote:

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Originally Posted by YesWeCan

Hopefully some of the earlier posters who have similar symptoms will try out these solutions and report in.

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Solve for Squeeze/Debian with RAID 1.

It's a bug in "graphical terminal" !

In file "/etc/default/grub", just uncomment the line:
GRUB_TERMINAL=console

Do:
update-grub

Reboot.
Disconnect (or disable) /dev/sda.
Boot on the second disk (become /dev/sdb)

The Grub menu appear and you can, now, boot on the second disk: Amazing isn't it ?

What?! Wow.
That's very interesting.
So what exactly did you do? You have 4 drives with 4 partitions in RAID1 for /boot?
When you remove sda it crashes. When you set Grub2 into console mode it boots ok without sda. When you put Grub2 back into graphics mode it crashes again?

Is that right?

Quote:

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Originally Posted by YesWeCan

What?! Wow.
So what exactly did you do? You have 4 drives with 4 partitions in RAID1 for /boot?

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No.
Only 2 drives /dev/sda en /dev/sdb , with 2 RAID 1 partitions.

/boot => RAID 1 => /dev/md0
/ => LVM partition => RAID 1 => /dev/md1

Quote:

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Originally Posted by YesWeCan

When you remove sda it crashes.

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Yes.
I could not boot on the "second" drive. In case of the first drive failed, of course.

I reproduced the same issue on 3 computers.

Quote:

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Originally Posted by YesWeCan

When you set Grub2 into console mode it boots ok without sda. When you put Grub2 back into graphics mode it crashes again?

Is that right?

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Yes.
It's seems that the "graphical splash menu" isn't installed on the second drive.

Quote:

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Originally Posted by Logicos

Solve for Squeeze/Debian with RAID 1.


In file "/etc/default/grub", just uncomment the line:
GRUB_TERMINAL=console

Do:
update-grub

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I had a similar problem but in my case the reset occurred just after the grub-menu.
Server 11.04, 3.0.0.11 kernel, RAID1 3 disks, no LVM.
This solved the problem, thank you very much!
:D

Quote:

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Originally Posted by Logicos

Solve for Squeeze/Debian with RAID 1.

It's a bug in "graphical terminal" !

In file "/etc/default/grub", just uncomment the line:
GRUB_TERMINAL=console

Do:
update-grub

Reboot.
Disconnect (or disable) /dev/sda.
Boot on the second disk (become /dev/sdb)

The Grub menu appear and you can, now, boot on the second disk: Amazing isn't it ?

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48 hours to try to find how I could have the second disk boot. Your trick worked
THANK YOU :guitar:

Quote:

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Originally Posted by deconstrained

1. Install grub on EACH of the array's disks and pass grub-install the option flag --modules="raid". Without --modules="raid" it will fail.
2. Rebuild your initramfs.

I followed those two steps and have gotten software raid1/5 working flawlessly.

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+1 for this.
The --modules flag solved my problem immediately. Thank you!

Hans