[arch-general] LVM on LUKS and fsck
I have decided to give encryption a shot and I have started with some bootable usb disks I have as emergency/recovery media. Everything works and partitions seem to mount just fine, but during boot in the fsck fase, root is apparently checked twice and home apparently doesn't get checked. root: clean, 177630/524288 files, 1430174/2097152 blocks boot: clean, 34/65536 files, 50998/262144 blocks root: clean, 12450/2162688 files, 7055618/8649728 blocks Using dumpe2fs to check how many blocks my root and home volumes have I can confirm that the first root line really corresponds to root and the second root line corresponds to home. Does anyone know if this is a (known) bug or am I missing something? My partition/volumes setup is as follows: boot luks -lvm --root --swap --home menu.lst: title Arch Linux root (hd0,0) kernel /vmlinuz-linux root=/dev/lvmvol/root cryptdevice=/dev/disk/by-uuid/d9cfc224-4ece-489b-a231-f5a5a876354f:luksvol ro quiet initrd /initramfs-linux.img fstab: UUID=b4a938a4-1a49-42dc-9535-472efcccc264 /boot ext2 defaults,noatime 0 1 /dev/lvmvol/root / ext4 defaults,noatime 0 1 /dev/lvmvol/home /home ext4 defaults,noatime 0 2 /dev/lvmvol/swap none swap defaults 0 0 mkinitcpio.conf: MODULES="" BINARIES="" FILES="" HOOKS="base udev usb usbinput keymap encrypt lvm2 autodetect pata scsi sata filesystems" -- Mauro Santos
In ~4 years of using encrypted lvm, I never saw that /dev/lvmvol thing. I can't figure how you managed to create it and use it in your config(s). Usually is something like /dev/mapper/lvmgroup-lvmvolume. Are you sure that LVM was created corectly? Did the system ever boot fine? -- <>< Sorin-Mihai Vârgolici Proud member of Ceata (http://ceata.org/) Arcada developer (https://arcadaproject.org/)
On Sunday 06 May 2012 06:53:42 Sorin-Mihai Vârgolici wrote:
In ~4 years of using encrypted lvm, I never saw that /dev/lvmvol thing. I can't figure how you managed to create it and use it in your config(s). Usually is something like /dev/mapper/lvmgroup-lvmvolume. Are you sure that LVM was created corectly? Did the system ever boot fine?
It is there in LVM, not sure about encrypted LVM though. You have both /dev/lvmgroup/lvmvolume and /dev/mapper/lvmgroup-lvmvolume. The /dev/lvmgroup/lvmvolume is a softlink to /dev/dm-x where x is the appropriate number. -- Jayesh Badwaik stop html mail | always bottom-post www.asciiribbon.org | www.netmeister.org/news/learn2quote.html
On 06.05.2012 09:02, Jayesh Badwaik wrote:
It is there in LVM, not sure about encrypted LVM though. You have both /dev/lvmgroup/lvmvolume and /dev/mapper/lvmgroup-lvmvolume. The /dev/lvmgroup/lvmvolume is a softlink to /dev/dm-x where x is the appropriate number.
Is the same on encrypted LVM, but the OP said /dev/lvmvol/root and so on, which is not /dev/lvmgroup/vlmvolume. -- <>< Sorin-Mihai Vârgolici Proud member of Ceata (http://ceata.org/) Arcada developer (https://arcadaproject.org/)
Mauro Santos
I have decided to give encryption a shot and I have started with some bootable usb disks I have as emergency/recovery media.
Everything works and partitions seem to mount just fine, but during boot in the fsck fase, root is apparently checked twice and home apparently doesn't get checked.
root: clean, 177630/524288 files, 1430174/2097152 blocks boot: clean, 34/65536 files, 50998/262144 blocks root: clean, 12450/2162688 files, 7055618/8649728 blocks
Using dumpe2fs to check how many blocks my root and home volumes have I can confirm that the first root line really corresponds to root and the second root line corresponds to home.
Does anyone know if this is a (known) bug or am I missing something?
My partition/volumes setup is as follows:
boot luks -lvm --root --swap --home
menu.lst: title Arch Linux root (hd0,0) kernel /vmlinuz-linux root=/dev/lvmvol/root cryptdevice=/dev/disk/by-uuid/d9cfc224-4ece-489b-a231-f5a5a876354f:luksvol ro quiet initrd /initramfs-linux.img
fstab: UUID=b4a938a4-1a49-42dc-9535-472efcccc264 /boot ext2 defaults,noatime 0 1 /dev/lvmvol/root / ext4 defaults,noatime 0 1 /dev/lvmvol/home /home ext4 defaults,noatime 0 2 /dev/lvmvol/swap none swap defaults 0 0
mkinitcpio.conf: MODULES="" BINARIES="" FILES="" HOOKS="base udev usb usbinput keymap encrypt lvm2 autodetect pata scsi sata filesystems"
I suppose everything is fine except that your home partition has label "root". tune2fs -L home /dev/path/to/home -- Best regards, Chris O< ascii ribbon campaign stop html mail - www.asciiribbon.org
participants (4)
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Christian Hesse
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Jayesh Badwaik
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Mauro Santos
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Sorin-Mihai Vârgolici