[solved] Can't boot with LVM and usb external disk

I successfully installed Archlinux on my first computer, using LVM on two internal Hard Drives.
I'm trying to do exactly the same on my second computer, but I got a problem: the LVM volume is not found at boot, so that the root partition can't be mounted and the boot fails.
The only difference is that, on my second computer, the second hard drive is connected through USB.
Some hints: my second computer boots perfectly with LVM and Ubuntu. Archlinux needs to be configured adequately.
I tried to add rootdelay=30 in menu.lst, but it changes nothing. Of course, in /etc/rc.conf I have USELVM="yes" and in /etc/mkinitcpio.conf I have HOOKS="base udev autodetect pata scsi sata keymap lvm2 filesystems"
Thank you for helping me to keep Archlinux on my second computer!
Last edited by Achille (2008-06-29 21:59:09)

I finally solved my problem!
In the file /etc/mkinitcpio.conf, I modified the MODULES loaded:
MODULES="pata_acpi ata_generic ata_piix usbcore usb_storage uhci_hcd ehci_hcd sg scsi_mod sd_mod dm_mod"
I also add in the file /lib/initcpio/hooks/lvm2 the line /bin/sleep 10
/bin/sleep 10
msg "Scanning logical volumes..."
And finally, I ran the command:
mkinitcpio -p kernel26

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[SOLVED] system not booting with LVM root and systemd

hi everyone ,
I've update my arch installation and performed the upgrade to systemd , and after that the system is not booting , it brings me to a recovery shell .
the root FS is on LVM , and everything under /dev/mapper is missing .
journalctl -xb -p err show me this error :
-- Logs begin at Tue 2013-05-28 21:14:18 CEST, end at Tue 2013-07-23 19:29:38 CEST. --
Jul 23 19:29:35 elminster systemd[1]: Timed out waiting for device dev-mapper-VolGroup00\x2dhome.device.
-- Subject: Unit dev-mapper-VolGroup00\x2dhome.device has failed
-- Defined-By: systemd
-- Unit dev-mapper-VolGroup00\x2dhome.device has failed.
-- The result is timeout.
Jul 23 19:29:35 elminster systemd[1]: Dependency failed for /home.
-- Subject: Unit home.mount has failed
-- Defined-By: systemd
-- Unit home.mount has failed.
-- The result is dependency.
Jul 23 19:29:35 elminster systemd[1]: Dependency failed for Local File Systems.
-- Subject: Unit local-fs.target has failed
-- Defined-By: systemd
-- Unit local-fs.target has failed.
-- The result is dependency.
Jul 23 19:29:35 elminster systemd[1]: Dependency failed for /home/andrea/DropBox.
-- Subject: Unit home-andrea-DropBox.mount has failed
-- Defined-By: systemd
-- Unit home-andrea-DropBox.mount has failed.
-- The result is dependency.
Jul 23 19:29:35 elminster systemd[1]: Dependency failed for File System Check on /dev/mapper/VolGroup00-home.
-- Subject: Unit systemd-fsck@dev-mapper-VolGroup00\x2dhome.service has failed
-- Defined-By: systemd
-- Unit systemd-fsck@dev-mapper-VolGroup00\x2dhome.service has failed.
-- The result is dependency.
Jul 23 19:29:35 elminster systemd[298]: Failed at step EXEC spawning /bin/plymouth: No such file or directory
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-- Defined-By: systemd
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here the relevant section of the /etc/fstab
/dev/mapper/VolGroup00-arch_i686_root / ext4 defaults,noatime,nodiratime 0 1
/dev/mapper/VolGroup00-home /home ext4 defaults,noatime,nodiratime 0 2
/dev/sda1 /boot ext4 defaults 0 1
/dev/mapper/VolGroup00-Store /media/store ext4 defaults,noatime,nodiratime 0 2
/dev/mapper/VolGroup00-migration /media/migration ext4 defaults,noatime,nodiratime,noauto 0 2
/dev/mapper/VolGroup00-DropBox /home/andrea/DropBox ext4 rw,noatime,nodiratime 0 0
/dev/mapper/VolGroup00-virtualbox--machines /media/store/virtualbox ext3 rw 0 0
/dev/mapper/VolGroup00-backup /media/backup ext3 rw,relatime,data=ordered 0 0
lvm services are enabled on systemd , but under /dev/mapper i find only /dev/mapper/control , all the other files are missing (list from another install)
ls -l /dev/mapper/*
crw------- 1 root root 10, 236 Jul 23 20:19 /dev/mapper/control
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-arch_i686_root -> ../dm-3
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-debian_root -> ../dm-6
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-DropBox -> ../dm-2
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-home -> ../dm-0
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-Store -> ../dm-1
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-ubuntu1204 -> ../dm-5
lrwxrwxrwx 1 root root 7 Jul 23 20:19 /dev/mapper/VolGroup00-virtualbox--machines -> ../dm-4
tried also vgchange -ay from recover shell but still no luck
any clue ?
Last edited by andreagrax (2013-07-26 19:46:12)

andreagrax wrote:lvm services are enabled on systemd
Which?
tried also vgchange -ay from recover shell but still no luck
Did you do vgscan first? What error did you get or did the command just return empty?
Is the lvm2 hook in mkinitcpio.conf? Have you tried regenerating your initramfs?

2.6.22 kernel and USB external disk ** SUSPECTED BUG**

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I also have that problem in KDE. I have an external HD with firewire or USB input.
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[SOLVED] Can only boot with error in fstab

Hey there!
During boot I noticed a message, that /dev/sda4 (my /home-partition) gets passed a wrong option.
BUT when the system finished booting, everything works very well!
checking my fstab got me
/dev/sda4 /home ext4 default,noatime 0 2
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Last edited by Slizzered (2010-04-15 05:51:45)

Man, my fstab seems to be really crappy I think now..
(gonna change the order immediately )
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No directory, logging in with HOME=/
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[solved] Can't boot with LVM and usb external disk

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