38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
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From 438b80786d2d3f729620bcf73d65732e9e84c52e Mon Sep 17 00:00:00 2001
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From: Hannes Reinecke <hare@suse.de>
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Date: Thu, 3 Jul 2014 14:44:22 +0200
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Subject: Do not call 'lvm' for non-LVM device-mapper devices
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If a device-mapper device is not created by LVM it's pointless
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to call any 'lvm' programs got extract details; they'll be
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failing anyway. So check the UUID before calling 'lvm'.
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This speeds up initrd creation and avoids I/O errors on
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multipath devices.
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Signed-off-by: Hannes Reinecke <hare@suse.de>
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---
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dracut-functions.sh | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/dracut-functions.sh b/dracut-functions.sh
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index 1e0779a..b6247f5 100755
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--- a/dracut-functions.sh
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+++ b/dracut-functions.sh
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@@ -700,10 +700,12 @@ for_each_host_dev_and_slaves()
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# but you cannot create the logical volume without the volume group.
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# And the volume group might be bigger than the devices the LV needs.
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check_vol_slaves() {
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- local _lv _vg _pv
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+ local _lv _vg _pv _dm
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for i in /dev/mapper/*; do
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[[ $i == /dev/mapper/control ]] && continue
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_lv=$(get_maj_min $i)
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+ _dm=/sys/dev/block/$_lv/dm
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+ [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || continue
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if [[ $_lv = $2 ]]; then
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_vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
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# strip space
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--
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1.8.4.5
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