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18f451e09e
The approach to duplicate VGIDs has been that it is not possible or not allowed, so the behavior has been undefined. The actual result was unpredictable and/or broken, and generally unhelpful. Improve this by recognizing the problem, displaying the VGs, and printing a warning to fix the problem. Beyond this, using VGs with duplicate VGIDs remains undefined, but should work well enough to correct the problem with vgchange -u. It's possible to create this condition without too much difficulty by cloning PVs, followed by an incomplete attempt at making the two VGs unique (vgrename and pvchange -u, but missing vgchange -u.)
53 lines
1008 B
Bash
53 lines
1008 B
Bash
#!/usr/bin/env bash
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# Copyright (C) 2008-2013 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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SKIP_WITH_LVMLOCKD=1
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux prepare_devs 2
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vgcreate $vg1 "$dev1"
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vgchange --setautoactivation n $vg1
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UUID1=$(vgs --noheading -o vg_uuid $vg1 | xargs)
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lvcreate -l1 -an -n $lv1 $vg1
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dd if="$dev1" of="$dev2" bs=1M count=1
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aux disable_dev "$dev1"
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vgrename $vg1 $vg2
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pvchange -u "$dev2"
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aux enable_dev "$dev1"
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vgs -o+uuid |tee out
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grep $vg1 out | tee out1
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grep $UUID1 out1
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grep $vg2 out | tee out2
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grep $UUID1 out2
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vgs $vg1
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vgs $vg2
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lvs $vg1/$lv1
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lvs $vg2/$lv1
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lvremove $vg1/$lv1
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lvremove $vg2/$lv1
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lvcreate -l1 -an -n $lv2 $vg1
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lvcreate -l1 -an -n $lv3 $vg2
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vgchange -u $vg2
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vgs -o uuid $vg1 |tee out
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grep $UUID1 out
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vgs -o uuid $vg2 |tee out
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not grep $UUID1 out
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vgremove -ff $vg1
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vgremove -ff $vg2
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