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Wizumwalt
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Joined: 20 Aug 2006
Posts: 474

PostPosted: Wed Sep 24, 2014 1:34 am    Post subject: initramfs ... No volume groups found. Reply with quote

I have UEFI booting a stub kernel on the GPT partition located on sda1. My /, usr, swap, etc... are all logical volumes within an LVM container in sda2. I also have an initramfs embedded within the efi/boot/<kernel>.

The problem is that the init script within the initramfs is unable to activate any of the volumes at the 'vgchange' command.

Here's my init script.
Code:

#!/bin/busybox sh

init=/sbin/init

rescue_shell() {
    # ... for brevity
}

mount -t proc none /proc
mount -t sysfs none /sys
mount -t devtmpfs none /dev

/sbin/lvm.static vgscan --mknodes
/sbin/lvm.static vgchange -ay
/sbin/lvm.static vgscan --mknodes

mkdir -p /mnt/root

mount -o ro /dev/mapper/vg0-root /mnt/root || rescue_shell

umount /proc
umount /sys
umount /dev

exec switch_root /mnt/root /sbin/init || rescue_shell


The error returned during boot is ...

Code:

Reading all physical volumes. This may take awhile...
No volume groups found.


At the rescue shell prompt, I try the same command that I do when I mount a live cd (using the initramfs path and static binary), but same results. Even adding the volume name, same results.

Anyone see where I've gone wrong?
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Roman_Gruber
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Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Wed Sep 24, 2014 9:51 am    Post subject: Reply with quote

hi,

in my point of view it is similar to this

https://forums.gentoo.org/viewtopic-t-1000396-highlight-.html

you may follow my advise there
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Wizumwalt
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Joined: 20 Aug 2006
Posts: 474

PostPosted: Wed Sep 24, 2014 5:19 pm    Post subject: Reply with quote

Thanks, but most of that seemed to focus on generating a proper initramfs. The init file from my initramfs is being executed so I do believe my initramfs is properly built. Besides, I use that same thing on other machines. It would seem to me that for some reason my lvm.static isn't properly activating the volumes, or for that matter, finding them.
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Wizumwalt
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Joined: 20 Aug 2006
Posts: 474

PostPosted: Fri Sep 26, 2014 2:58 am    Post subject: Reply with quote

Well, just an update, looks like my sda1 and sda2 do not exist under /dev. Guess I have yet to find the right drivers to include for SATA C600/X79.
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