79 lines
1.7 KiB
Bash
79 lines
1.7 KiB
Bash
#!/bin/bash
|
|
#%stage: volumemanager
|
|
#%depends: evms
|
|
#%programs: /sbin/vgscan /sbin/vgchange /sbin/lvm
|
|
#%modules: linear
|
|
#%if: -n "$root_lvm2"
|
|
#
|
|
##### LVM (Logical Volume Management)
|
|
##
|
|
## This activates and waits for an LVM.
|
|
##
|
|
## Command line parameters
|
|
## -----------------------
|
|
##
|
|
## root_lvm2=1 use LVM
|
|
## root=/dev/mapper/... use this device as Volume Group
|
|
## vg_roots use this group as Volume Group
|
|
##
|
|
|
|
lvm2_get_vg() {
|
|
local param=$1
|
|
local vg_root vg_name
|
|
local sysdev
|
|
|
|
case $param in
|
|
/dev/disk/by-*/*)
|
|
vg_root=
|
|
;;
|
|
/dev/mapper/*)
|
|
vg_name=${o##root=/dev/mapper/}
|
|
vg_root=${vg_name%%-*}
|
|
;;
|
|
/dev/*)
|
|
set -- $(IFS=/ ; echo $param)
|
|
if [ "$#" = "3" ] ; then
|
|
# Check sysfs. If there are subdirectories
|
|
# matching this name it's a block device
|
|
for d in /sys/block/$2\!* ; do
|
|
if [ -d $d ] ; then
|
|
sysdev=$d
|
|
fi
|
|
done
|
|
# Not found in sysfs, looks like a VG then
|
|
if [ -z "$sysdev" ] ; then
|
|
vg_root=$2
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
echo $vg_root
|
|
}
|
|
|
|
# load the necessary module before we initialize the raid system
|
|
load_modules
|
|
|
|
if [ -n "$root_lvm2" ] ; then
|
|
o=$(get_param root)
|
|
# Fallback if 'root=' is not specified
|
|
[ -z "$o" ] && o=$rootdev
|
|
vg_root=$(lvm2_get_vg $o)
|
|
if [ "$vg_root" ] ; then
|
|
# We are waiting for a device-mapper device
|
|
root_major=$(sed -n 's/\(.*\) device-mapper/\1/p' /proc/devices)
|
|
fi
|
|
o=$(get_param resume)
|
|
vg_resume=$(lvm2_get_vg $o)
|
|
if [ "$vg_resume" ] ; then
|
|
resume_major=$(sed -n 's/\(.*\) device-mapper/\1/p' /proc/devices)
|
|
fi
|
|
fi
|
|
|
|
# initialize remebered and parameterized devices
|
|
for vgr in $vg_root $vg_resume $vg_roots; do
|
|
vgchange -a y $vgr
|
|
done
|
|
|
|
unset lvm2_get_vg
|