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initramfs-framework/dmverity: add retry loop for slow boot devices

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Detection of USB devices by the kernel is slow enough. We need to
keep trying for a while (default: 5s seconds, controlled by roottimeout=<seconds>)
and sleep between each attempt (default: one second, rootdelay=<seconds>).

Fix is based on https://git.yoctoproject.org/cgit.cgi/poky/commit/meta/recipes-core/initrdscripts/initramfs-framework/rootfs?id=ee6a6c3461694ce09789bf4d852cea2e22fc95e4

Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
(cherry picked from commit e23767fc72)
This commit is contained in:
Naveen Saini
2020-10-02 10:53:50 +08:00
committed by Armin Kuster
parent aa5a6f7d12
commit 4aab56bbca
1 changed files with 36 additions and 26 deletions
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62
recipes-core/initrdscripts/initramfs-framework/dmverity
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@@ -10,33 +10,43 @@ dmverity_run() {
. /usr/share/misc/dm-verity.env
case "${bootparam_root}" in
ID=*)
RDEV="$(realpath /dev/disk/by-id/${bootparam_root#ID=})"
;;
LABEL=*)
RDEV="$(realpath /dev/disk/by-label/${bootparam_root#LABEL=})"
;;
PARTLABEL=*)
RDEV="$(realpath /dev/disk/by-partlabel/${bootparam_root#PARTLABEL=})"
;;
PARTUUID=*)
RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})"
;;
PATH=*)
RDEV="$(realpath /dev/disk/by-path/${bootparam_root#PATH=})"
;;
UUID=*)
RDEV="$(realpath /dev/disk/by-uuid/${bootparam_root#UUID=})"
;;
*)
RDEV="${bootparam_root}"
esac
C=0
delay=${bootparam_rootdelay:-1}
timeout=${bootparam_roottimeout:-5}
RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})"
while [ ! -b "${RDEV}" ]; do
if [ $(( $C * $delay )) -gt $timeout ]; then
fatal "Root device resolution failed"
exit 1
fi
if ! [ -b "${RDEV}" ]; then
echo "Root device resolution failed"
exit 1
fi
case "${bootparam_root}" in
ID=*)
RDEV="$(realpath /dev/disk/by-id/${bootparam_root#ID=})"
;;
LABEL=*)
RDEV="$(realpath /dev/disk/by-label/${bootparam_root#LABEL=})"
;;
PARTLABEL=*)
RDEV="$(realpath /dev/disk/by-partlabel/${bootparam_root#PARTLABEL=})"
;;
PARTUUID=*)
RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})"
;;
PATH=*)
RDEV="$(realpath /dev/disk/by-path/${bootparam_root#PATH=})"
;;
UUID=*)
RDEV="$(realpath /dev/disk/by-uuid/${bootparam_root#UUID=})"
;;
*)
RDEV="${bootparam_root}"
esac
debug "Sleeping for $delay second(s) to wait root to settle..."
sleep $delay
C=$(( $C + 1 ))
done
veritysetup \
--data-block-size=1024 \