gluon/patches/lede/0026-x86-sysupgrade-explicitly-rescan-disk-after-writing-partition-table.patch
Matthias Schiffer 52d28c1140
Backport staged sysupgrade patches
The staged sysupgrade allows to properly unmount the rootfs before writing
the new partitions. This will fix upgrades losing configuration when
parition sizes change on x86 and similar image types.
2017-05-30 07:31:37 +02:00

27 lines
1.0 KiB
Diff

From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Wed, 3 May 2017 09:08:29 +0200
Subject: x86: sysupgrade: explicitly rescan disk after writing partition table
This should ensure that the kernel partition can be mounted in
platform_copy_config when its size has changed.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index 4fa71999be7be3972676a1019488972dccd57fa2..439ba8f5125d97932248ff966340165a84e1b24a 100644
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -70,6 +70,12 @@ platform_do_upgrade() {
if [ -n "$diff" ]; then
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
+
+ # Separate removal and addtion is necessary; otherwise, partition 1
+ # will be missing if it overlaps with the old partition 2
+ partx -d - "/dev/$diskdev"
+ partx -a - "/dev/$diskdev"
+
return 0
fi