LVM

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Revision as of 06:40, 18 September 2015 by Apos (talk | contribs) (Mount existing volume groups)

Install necessary apps

E.g. on a rescue disc ...

apt-get install cryptsetup

Open encryted lvm partition

cryptsetup luksOpen /dev/sda5 my-crypt

Mount existing volume groups

sudo apt-get install lvm2
sudo modprobe dm-mod
sudo vgchange -a y
> 2 logical volume(s) in volume group "vg-whatever" now active
ls /dev/mapper
> control vg--whatever--root  vg--whatever--swap
my_root=/mnt/whatever_root
mkdir ${my_root}
mount /dev/mapper/vg--whatever--root ${my_root}
mount /dev/sdax ${my_root}/boot
mount -o bind /dev ${my_root}/dev; \
mount -o bind /run ${my_root}/run; \
mount -t proc /proc ${my_root}/proc; \
mount -t sysfs /sys ${my_root}/sys
chroot ${my_root}

Umount existing volume groups and close encrypted container

sudo umount /dev/mapper/whatever
sudo vgchange -a n
sudo cryptsetup luksClose my-crypt