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Work around kpartx's nonzero exit due to "Device or resource busy" errors

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which still permit kpartx to finally remove loop device (LP: #1684090).
Also sync before calling kpartx to let writing to loop devices finish.
This commit is contained in:
Balint Reczey 2017-05-12 21:20:22 +02:00
parent 0fcff1923c
commit 2569995de8
1 changed files with 14 additions and 1 deletions
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15
live-build/ubuntu-cpc/functions
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@ -11,9 +11,22 @@ backing_img=
apt-get -qqy install dosfstools gdisk apt-get -qqy install dosfstools gdisk
clean_loops() { clean_loops() {
local kpartx_ret
local kpartx_stdout
if [ -n "${backing_img}" ]; then if [ -n "${backing_img}" ]; then
kpartx -v -d "${backing_img}" # sync before removing loop to avoid "Device or resource busy" errors
sync
kpartx_ret=""
kpartx_stdout=$(kpartx -v -d "${backing_img}") || kpartx_ret=$?
echo "$kpartx_stdout"
if [ -n "$kpartx_ret" ]; then
if echo "$kpartx_stdout" | grep -q "loop deleted: "; then
echo "Suppressing kpartx returning error (#860894)"
else
exit $kpartx_ret
fi
fi
unset backing_img unset backing_img
fi fi