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From 32b970339f5439300fe6155352ec1f17c5e48d78 Mon Sep 17 00:00:00 2001
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From: Peter Rajnoha <prajnoha@redhat.com>
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Date: Fri, 4 Oct 2013 10:41:24 +0200
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Subject: [PATCH] lvm/mdraid: Fix LVM on MD activation
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The 69-dm-lvm-metad.rules set some udev env. variables that makes it
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possible to detect the right time to activate LVM on MD. The MD is very
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similar to DM during activation - it's usable only after proper device
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activation - the CHANGE event. We need to make a difference between a
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CHANGE event that comes from this activation and CHANGE event that is
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the outcome of the WATCH udev rule (otherwise we'd end up with LVM
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activation done on each CHANGE event - which is wrong).
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So we need the udev databse to be persistent during pivot to root fs
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even for MD devices.
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---
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modules.d/90lvm/module-setup.sh | 2 +-
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modules.d/90mdraid/59-persistent-storage-md.rules | 1 +
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2 files changed, 2 insertions(+), 1 deletion(-)
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diff --git a/modules.d/90lvm/module-setup.sh b/modules.d/90lvm/module-setup.sh
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index 2ef9a51..f98ffff 100755
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--- a/modules.d/90lvm/module-setup.sh
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+++ b/modules.d/90lvm/module-setup.sh
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@@ -82,7 +82,7 @@ install() {
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} > "${initdir}/etc/lvm/lvm.conf"
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fi
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- inst_rules 11-dm-lvm.rules
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+ inst_rules 11-dm-lvm.rules 69-dm-lvm-metad.rules
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# Gentoo ebuild for LVM2 prior to 2.02.63-r1 doesn't install above rules
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# files, but provides the one below:
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inst_rules 64-device-mapper.rules
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diff --git a/modules.d/90mdraid/59-persistent-storage-md.rules b/modules.d/90mdraid/59-persistent-storage-md.rules
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index bea9325..6ef858a 100644
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--- a/modules.d/90mdraid/59-persistent-storage-md.rules
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+++ b/modules.d/90mdraid/59-persistent-storage-md.rules
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@@ -20,4 +20,5 @@ IMPORT{program}="/sbin/mdadm --detail --export $tempnode"
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IMPORT BLKID
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OPTIONS+="link_priority=100"
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OPTIONS+="watch"
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+OPTIONS+="db_persist"
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LABEL="md_end"
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