aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/x86/base-files
diff options
context:
space:
mode:
authorJo-Philipp Wich <jow@openwrt.org>2015-03-24 10:08:12 +0000
committerJo-Philipp Wich <jow@openwrt.org>2015-03-24 10:08:12 +0000
commit02e2548b844f987edab5fa82fb6283419f3381ff (patch)
treeb727f3d9cdcdc50318b9afbdb3699cbb05f4a466 /target/linux/x86/base-files
parent5d9eeab64aadb376a8c07d8faad44b25ac9ce7f5 (diff)
downloadupstream-02e2548b844f987edab5fa82fb6283419f3381ff.tar.gz
upstream-02e2548b844f987edab5fa82fb6283419f3381ff.tar.bz2
upstream-02e2548b844f987edab5fa82fb6283419f3381ff.zip
x86: use PARTUUID instead explicitly specifying the device by default
This changes the x86 image generation to match x86_64, using the PARTUUID for the rootfs instead of explicitly configuring the device. It unbreaks KVM with VirtIO, which uses /dev/vda2 instead of /dev/sda2. Tested in QEMU/KVM with VirtIO, VirtualBox and VMware. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> SVN-Revision: 44966
Diffstat (limited to 'target/linux/x86/base-files')
-rw-r--r--target/linux/x86/base-files/lib/preinit/79_move_config21
-rw-r--r--target/linux/x86/base-files/lib/upgrade/platform.sh70
2 files changed, 53 insertions, 38 deletions
diff --git a/target/linux/x86/base-files/lib/preinit/79_move_config b/target/linux/x86/base-files/lib/preinit/79_move_config
index 0bffbab994..1d4873d78b 100644
--- a/target/linux/x86/base-files/lib/preinit/79_move_config
+++ b/target/linux/x86/base-files/lib/preinit/79_move_config
@@ -1,21 +1,14 @@
#!/bin/sh
-# Copyright (C) 2012 OpenWrt.org
+# Copyright (C) 2012-2015 OpenWrt.org
move_config() {
- local rootfsdev
- local rootfstype
-
- rootfstype="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "rootfstype") { print $2 }' < /proc/cmdline)"
- case "$rootfstype" in
- squashfs|jffs2)
- rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "block2mtd.block2mtd") { print substr($2,1,index($2, ",")-1) }' < /proc/cmdline)";;
- ext4)
- rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "root") { print $2 }' < /proc/cmdline)";;
- esac
+ . /lib/upgrade/platform.sh
- mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt
- mv -f /mnt/sysupgrade.tgz /
- umount /mnt
+ if platform_export_bootpart; then
+ mount -t ext4 -o rw,noatime "$BOOTPART" /mnt
+ mv -f /mnt/sysupgrade.tgz /
+ umount /mnt
+ fi
}
boot_hook_add preinit_mount_root move_config
diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index a2dd20a881..73ab5ef079 100644
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -1,16 +1,38 @@
-x86_get_rootfs() {
- local rootfsdev
- local rootfstype
-
- rootfstype="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "rootfstype") { print $2 }' < /proc/cmdline)"
- case "$rootfstype" in
- squashfs|jffs2)
- rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "block2mtd.block2mtd") { print substr($2,1,index($2, ",")-1) }' < /proc/cmdline)";;
- ext4)
- rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "root") { print $2 }' < /proc/cmdline)";;
- esac
-
- echo "$rootfstype:$rootfsdev"
+platform_export_bootpart() {
+ local cmdline uuid disk
+
+ if read cmdline < /proc/cmdline; then
+ case "$cmdline" in
+ *block2mtd=*)
+ disk="${cmdline##*block2mtd=}"
+ disk="${disk%%,*}"
+ ;;
+ *root=*)
+ disk="${cmdline##*root=}"
+ disk="${disk%% *}"
+ ;;
+ esac
+
+ case "$disk" in
+ PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
+ uuid="${disk#PARTUUID=}"
+ uuid="${uuid%-02}"
+ for disk in /dev/[hsv]d[a-z]; do
+ set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
+ if [ "$4$3$2$1" = "$uuid" ]; then
+ export BOOTPART="${disk}1"
+ return 0
+ fi
+ done
+ ;;
+ /dev/*)
+ export BOOTPART="${disk%[0-9]}1"
+ return 0
+ ;;
+ esac
+ fi
+
+ return 1
}
platform_check_image() {
@@ -26,19 +48,19 @@ platform_check_image() {
}
platform_copy_config() {
- local rootfs="$(x86_get_rootfs)"
- local rootfsdev="${rootfs##*:}"
-
- mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt
- cp -af "$CONF_TAR" /mnt/
- umount /mnt
+ if [ -b "$BOOTPART" ]; then
+ mount -t ext4 -o rw,noatime "$BOOTPART" /mnt
+ cp -af "$CONF_TAR" /mnt/
+ umount /mnt
+ fi
}
platform_do_upgrade() {
- local rootfs="$(x86_get_rootfs)"
- local rootfsdev="${rootfs##*:}"
+ platform_export_bootpart
- sync
- [ -b ${rootfsdev%[0-9]} ] && get_image "$@" | dd of=${rootfsdev%[0-9]} bs=4096 conv=fsync
- sleep 1
+ if [ -b "${BOOTPART%[0-9]}" ]; then
+ sync
+ get_image "$@" | dd of="${BOOTPART%[0-9]}" bs=4096 conv=fsync
+ sleep 1
+ fi
}