63 lines
1.9 KiB
Diff
63 lines
1.9 KiB
Diff
From: Matthias Schiffer <mschiffer@universe-factory.net>
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Date: Wed, 3 May 2017 08:57:29 +0200
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Subject: x86: sysupgrade: move partition table change check to platform_check_image
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The staged sysupgrade will prevent us from using ask_bool in
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platform_do_upgrade; therefore, the check is moved to platform_check_image.
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Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
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diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
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index d3e9f360aadedad0995da55205364940c9884ba4..81b349a81816033eef9df464b2a70fdb998e5a1d 100644
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--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
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+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
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@@ -1,13 +1,37 @@
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platform_check_image() {
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+ local diskdev partdev diff
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[ "$#" -gt 1 ] && return 1
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case "$(get_magic_word "$1")" in
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- eb48|eb63) return 0;;
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+ eb48|eb63) ;;
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*)
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echo "Invalid image type"
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return 1
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;;
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esac
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+
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+ export_bootdevice && export_partdevice diskdev 0 || {
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+ echo "Unable to determine upgrade device"
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+ return 1
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+ }
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+
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+ get_partitions "/dev/$diskdev" bootdisk
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+
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+ #extract the boot sector from the image
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+ get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
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+
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+ get_partitions /tmp/image.bs image
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+
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+ #compare tables
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+ diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
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+
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+ rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
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+
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+ if [ -n "$diff" ]; then
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+ echo "Partition layout has changed. Full image will be written."
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+ ask_bool 0 "Abort" && exit 1
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+ return 0
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+ fi
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}
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platform_copy_config() {
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@@ -36,9 +60,6 @@ platform_do_upgrade() {
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#compare tables
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diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
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if [ -n "$diff" ]; then
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- echo "Partition layout is changed. Full image will be written."
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- ask_bool 0 "Abort" && exit
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-
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get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
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return 0
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fi
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