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#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
_get_lvm_path() {
local lvm_path=
for lvm_path in /bin/lvm /sbin/lvm ; do
[ -x "$lvm_path" ] && break
done
echo "${lvm_path}"
}
_need_lvmetad()
{
local lvm_path="$(_get_lvm_path)"
[ ! -x "${lvm_path}" ] && return 1
${lvm_path} dumpconfig global | grep -q 'use_lvmetad=1'
}
depend() {
before checkfs fsck
after modules device-mapper
# We may use lvmetad based on the configuration. If we added lvmetad
# support while lvm2 is running then we aren't dependent on it. For the
# more common case, if its disabled in the config we aren't dependent
# on it.
config /etc/lvm/lvm.conf
local _need=
if service_started; then
_need=$(service_get_value need)
else
if _need_lvmetad; then
_need="${_need} lvmetad"
fi
fi
need sysfs ${_need}
}
config='global { locking_dir = "/run/lock/lvm" }'
dm_in_proc() {
local retval=0
for x in devices misc ; do
grep -qs 'device-mapper' /proc/${x}
retval=$((${retval} + $?))
done
return ${retval}
}
start() {
# LVM support for /usr, /home, /opt ....
# This should be done *before* checking local
# volumes, or they never get checked.
# NOTE: Add needed modules for LVM or RAID, etc
# to /etc/modules.autoload if needed
lvm_path="$(_get_lvm_path)"
for lvm_path in /bin/lvm /sbin/lvm ; do
[ -x "$lvm_path" ] && break
done
if [ ! -x "$lvm_path" ]; then
eerror "Cannot find lvm binary in /sbin or /bin!"
return 1
fi
if [ -z "${CDBOOT}" ] ; then
if [ -e /proc/modules ] && ! dm_in_proc ; then
modprobe dm-mod 2>/dev/null
fi
if [ -d /proc/lvm ] || dm_in_proc ; then
ebegin "Setting up the Logical Volume Manager"
#still echo stderr for debugging
lvm_commands="#! ${lvm_path} --config '${config}'\n"
# Extra PV find pass because some devices might not have been available until very recently
lvm_commands="${lvm_commands}pvscan\n"
# Now make the nodes
lvm_commands="${lvm_commands}vgscan --mknodes\n"
# And turn them on!
lvm_commands="${lvm_commands}vgchange --sysinit -a ly\n"
# Order of this is important, have to work around dash and LVM readline
printf "%b\n" "${lvm_commands}" | $lvm_path /proc/self/fd/0 --config "${config}" >/dev/null
eend $? "Failed to setup the LVM"
fi
fi
}
start_post()
{
# Save if we needed lvmetad
if _need_lvmetad; then
service_set_value need lvmetad
fi
}
stop() {
for lvm_path in /bin/lvm /sbin/lvm ; do
[ -x "$lvm_path" ] && break
done
if [ ! -x "$lvm_path" ]; then
eerror "Cannot find lvm binary in /sbin or /bin!"
return 1
fi
# Stop LVM2
if [ -x /sbin/vgs ] && \
[ -x /sbin/vgchange ] && \
[ -x /sbin/lvchange ] && \
[ -f /etc/lvmtab -o -d /etc/lvm ] && \
[ -d /proc/lvm -o "`grep device-mapper /proc/misc 2>/dev/null`" ]
then
einfo "Shutting down the Logical Volume Manager"
VGS=$($lvm_path vgs --config "${config}" -o vg_name --noheadings --nosuffix --rows 2> /dev/null)
if [ "$VGS" ]
then
ebegin " Shutting Down LVs & VGs"
#still echo stderr for debugging
lvm_commands="#! ${lvm_path} --config '${config}'\n"
# Extra PV find pass because some devices might not have been available until very recently
lvm_commands="${lvm_commands}lvchange --sysinit -a ln ${VGS}\n"
# Now make the nodes
lvm_commands="${lvm_commands}vgchange --sysinit -a ln ${VGS}\n"
# Order of this is important, have to work around dash and LVM readline
printf "%b\n" "${lvm_commands}" | $lvm_path /proc/self/fd/0 --config "${config}" >/dev/null
eend $? "Failed (possibly some LVs still needed for /usr or root)"
fi
einfo "Finished shutting down the Logical Volume Manager"
return 0
fi
}
# vim:ts=4
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