QubesOS/qubes-linux-utils
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initramfs: add support for variable partitions layout

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Try to find root filesystem by partition label (not filesystem label!).
If that fails, default to 3rd partition according to (new) default
layout.

Fixes QubesOS/qubes-issues#3173
This commit is contained in:
Marek Marczykowski-Górecki 2017-10-17 22:45:07 +02:00
parent e9615899ff
commit 09e6d2ac95
No known key found for this signature in database
GPG Key ID: 063938BA42CFA724
2 changed files with 17 additions and 4 deletions
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8
dracut/full-dmroot/qubes_cow_setup.sh
View File

@ -56,9 +56,13 @@ log_begin "Waiting for /dev/xvda* devices..."
while ! [ -e /dev/xvda ]; do sleep 0.1; done
log_end
# prefer first partition if exists
# prefer partition if exists
if [ -b /dev/xvda1 ]; then
ROOT_DEV=xvda1
if [ -d /dev/disk/by-partlabel ]; then
ROOT_DEV=$(basename $(readlink "/dev/disk/by-partlabel/Root\\x20filesystem"))
else
ROOT_DEV=xvda3
fi
else
ROOT_DEV=xvda
fi

13
dracut/simple/init.sh
View File

@ -20,9 +20,18 @@ die() {
echo "Waiting for /dev/xvda* devices..."
while ! [ -e /dev/xvda ]; do sleep 0.1; done
# prefer first partition if exists
# prefer partition if exists
if [ -b /dev/xvda1 ]; then
ROOT_DEV=xvda1
if [ -d /dev/disk/by-partlabel ]; then
ROOT_DEV=$(basename $(readlink "/dev/disk/by-partlabel/Root\\x20filesystem"))
else
ROOT_DEV=$(grep -l "PARTNAME=Root filesystem" /sys/block/xvda/xvda*/uevent |\
grep -o "xvda[0-9]")
fi
if [ -z "$ROOT_DEV" ]; then
# fallback to third partition
ROOT_DEV=xvda3
fi
else
ROOT_DEV=xvda
fi