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bhuisgen
n00b
Joined: 07 Sep 2008
Posts: 6
Location: France
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 Posted: Sun Jun 19, 2011 12:59 am Post subject: Problem with initramfs and GRUB2 / GPT / root on LVM on RAID |
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Hello everybody,
I'm trying to make a new gentoo install with root on LVM on RAID. The RAID has metadatas 1.2 so I use GRUB2 and a initramfs which assemble the RAID and mount the root on LVM. But there is a problem with the root switch, the system seems to freeze with no error message...
Here is the details :
- kernel : 2.6.38-hardened-r6 with grsecurity, devtmpfs & EFI GPT partition support.
- GPT partitioning
- GRUB2 : sys-boot/grub-9999
- RAID1 : /dev/md0 for boot + /dev/md1 for LVM.
- LVM : vg/root + vg/swap
Here is the init script of my initramfs :
| Code: |
#!/bin/busybox sh
rescue_shell() {
echo "Something went wrong. Dropping you to a shell."
busybox --install -s
exec /bin/sh
}
CMDLINE=`cat /proc/cmdline`
mount -t proc none /proc
mount -t sysfs none /sys
mount -t devtmpfs none /dev
mdadm --assemble --scan /dev/md0
mdadm --assemble --scan /dev/md1
lvm vgscan --mknodes
lvm lvchange -aly vg/root
mount -o ro /dev/mapper/vg-root /mnt/root || rescue_shell
umount /dev
umount /sys
umount /proc
exec /bin/busybox switch_root /mnt/root /sbin/init ${CMDLINE}
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Have you any idea why the last line doesn't work ? |
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cach0rr0
Bodhisattva
Joined: 13 Nov 2008
Posts: 4123
Location: Houston, Republic of Texas
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| Posted: Sun Jun 19, 2011 2:07 am Post subject: |
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as this is a new install, have you seen this? https://forums.gentoo.org/viewtopic-t-880149.html
devtmpfs support in the kernel is insufficient for getting around that issue apparently
also note that the devtmpfs you mount inside your initramfs goes away once you unmount /dev and switch_root
you will need to mknod those three devices within your actual install (as in, not inside the initramfs, but rather on the /dev that's on your rootfs) if you haven't already
_________________
Lost configuring your system?
dump lspci -n here | see Pappy's guide | Link Stash |
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bhuisgen
n00b
Joined: 07 Sep 2008
Posts: 6
Location: France
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| Posted: Sun Jun 19, 2011 10:54 am Post subject: |
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| Yes ! After adding the three nodes, it works ! Thank you. |
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Installing Gentoo
