PAL.C.T MINI SHELL
#!/bin/sh
# run lvm scan if udev has settled
extraargs="$@"
. /lib/dracut-lib.sh
VGS=$(getargs rd_LVM_VG=)
LVS=$(getargs rd_LVM_LV=)
[ -d /etc/lvm ] || mkdir -p /etc/lvm
# build a list of devices to scan
lvmdevs=$(
for f in /tmp/.lvm_scan-*; do
[ -e "$f" ] || continue
echo -n "${f##/tmp/.lvm_scan-} "
done
)
if [ ! -e /etc/lvm/lvm.conf ]; then
{
echo 'devices {';
echo -n ' filter = [ '
for dev in $lvmdevs; do
printf '"a|^/dev/%s$|", ' $dev;
done;
echo '"r/.*/" ]';
echo '}';
# establish read-only locking
echo 'global {';
echo ' locking_type = 4';
echo '}';
} > /etc/lvm/lvm.conf
lvmwritten=1
fi
check_lvm_ver() {
maj=$1
min=$2
ver=$3
# --poll is supported since 2.2.57
[ $4 -lt $maj ] && return 1
[ $4 -gt $maj ] && return 0
[ $5 -lt $min ] && return 1
[ $5 -gt $min ] && return 0
[ $6 -ge $ver ] && return 0
return 1
}
# hopefully this output format will never change, e.g.:
# LVM version: 2.02.53(1) (2009-09-25)
OLDIFS=$IFS
IFS=.
set $(lvm version 2>/dev/null)
IFS=$OLDIFS
maj=${1##*:}
min=$2
sub=${3%% *}
sub=${sub%%\(*};
check_lvm_ver 2 2 57 $maj $min $sub && \
nopoll="--poll n"
if check_lvm_ver 2 2 65 $maj $min $sub; then
sysinit=" --sysinit $extraargs"
fi
unset extraargs
export LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES=1
if [ -n "$LVS" ] ; then
info "Scanning devices $lvmdevs for LVM logical volumes $LVS"
lvm lvscan --ignorelockingfailure 2>&1 | vinfo
if [ -z "$sysinit" ]; then
lvm lvchange -ay --ignorelockingfailure $nopoll --ignoremonitoring $LVS 2>&1 | vinfo
else
lvm lvchange --yes -ay $sysinit $LVS 2>&1 | vinfo
fi
fi
if [ -z "$LVS" -o -n "$VGS" ]; then
info "Scanning devices $lvmdevs for LVM volume groups $VGS"
lvm vgscan --ignorelockingfailure 2>&1 | vinfo
if [ -z "$sysinit" ]; then
lvm vgchange -ay --ignorelockingfailure $nopoll --ignoremonitoring $VGS 2>&1 | vinfo
else
lvm vgchange -ay $sysinit $VGS 2>&1 | vinfo
fi
fi
if [ "$lvmwritten" ]; then
rm -f /etc/lvm/lvm.conf
ln -s /sbin/lvm-cleanup /pre-pivot/30-lvm-cleanup.sh 2>/dev/null
ln -s /sbin/lvm-cleanup /pre-pivot/31-lvm-cleanup.sh 2>/dev/null
fi
unset lvmwritten
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