Arch Linux

jpsimard

Member

Registered: 2011-04-15

Posts: 41

[solved] Update got me stuck on boot after activating lvm

I did an update which contained a new kernel.  Now the system just hangs after this...

Activating logical volumes
4 logical volume(s) in volume group "VolGroup00" now active.

Now I've booted in the live environment and use vgscan and vgchange -ay and I can see my partitions in /dev/mapper.  /boot is on it's own partition, not on lvm.

I believe I need to rebuild the image, but I'm unsure as to how I should mount my partitions, and which partitions I should mount.  root, var, swap  and home are on lvm.  I tried figuring it out with the wiki, but my brain is burnt, and I'm really going nowhere fast.  Anybody could take pity on me and just give me the answer of what come next?

Last edited by jpsimard (2012-04-28 01:11:11)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,424

Website

Re: [solved] Update got me stuck on boot after activating lvm

The wiki article is pretty clear, IMO.

Once you are in the live environment, mount your /dev/mapper/blah on /mnt/arch, then the other filesystems as per the chroot page and finally mount /boot. Then chroot and fix your image.

# edit: there are also any number of threads here detailing the same steps if you need to do a sanity check at any point...

Last edited by jasonwryan (2012-04-28 00:59:03)

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jpsimard

Member

Registered: 2011-04-15

Posts: 41

Re: [solved] Update got me stuck on boot after activating lvm

Well, my brain is really burnt, but for some reason, your contribution did actually clear things up.  I was doing things wrong, but I don't know how, now that I managed to get myself out of the idiot bin.  I guess I was trying too hard! 

Thanks for the help.

Last edited by jpsimard (2012-04-28 01:10:23)

Ajunta

Member

From: Moscow

Registered: 2009-05-31

Posts: 58

Re: [solved] Update got me stuck on boot after activating lvm

I've got exactly the same problem today. Rebuilding image was the solution. At first you need to chroot to your existing installation from the live environment: https://wiki.archlinux.org/index.php/Change_Root and then rebuild image: https://wiki.archlinux.org/index.php/Mk … activation

njbair

Member

Registered: 2012-01-01

Posts: 5

Re: [solved] Update got me stuck on boot after activating lvm

Thanks for this. I had the same issue just moments ago. What is the cause?

Lone_Wolf

Forum Moderator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,969

Re: [solved] Update got me stuck on boot after activating lvm

Probably this : https://bbs.archlinux.org/viewtopic.php?id=140471

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boast

Member

Registered: 2010-09-28

Posts: 219

Re: [solved] Update got me stuck on boot after activating lvm

Well, my brain is really burnt, but for some reason, your contribution did actually clear things up.  I was doing things wrong, but I don't know how, now that I managed to get myself out of the idiot bin.  I guess I was trying too hard! 

Thanks for the help.

Can you tell me everything you did? I need help

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dcc24

Member

Registered: 2009-10-31

Posts: 732

Re: [solved] Update got me stuck on boot after activating lvm

Can you tell me everything you did? I need help

I had the same problem. Here's a step by step solution:

* Boot a live cd
* # vgchange -ay
* Mount your / partition to a folder
* Bind proc, dev and sys like this:

mount -t proc proc ${your-root}/proc
mount -t sysfs sys ${your-root}/sys
mount -o bind /dev ${your-root}/dev

* # chroot ${your-root} /bin/bash

Once you are in the chroot, mount your boot partition to /boot (do this *inside* the chroot!)

* #mkinitcpio -p linux
* reboot

Hope it helps

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6arms1leg

Member

Registered: 2011-04-19

Posts: 22

Re: [solved] Update got me stuck on boot after activating lvm

if

# vgchange -a y

returns an error (as on my old arch-livecd), load the dm-mod module first:

# modprobe dm-mod

Wake

Member

Registered: 2012-01-12

Posts: 12

Re: [solved] Update got me stuck on boot after activating lvm

Once you are in the chroot, mount your boot partition to /boot (do this *inside* the chroot!)

* #mkinitcpio -p linux
* reboot

I mounted the boot partition before the chroot and it worked fine (mount /dev/sda1 /mnt/arch/boot).

This is why I love arch - excellent technical help.