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Use kpartx if partition device doesn't exist

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If the loop partition isn't created as a device by the kernel, go ahead and use
kpartx to create the device.

Change-Id: I53290b7724d0cb45a1fc9225ec096025db8978dd
This commit is contained in:
Chris Alfonso 2013-08-15 12:27:25 -04:00
parent 6c26cec656
commit e7a8fefa0b
1 changed files with 14 additions and 1 deletions
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15
elements/vm/block-device.d/10-partition
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@ -15,4 +15,17 @@ EOF
sudo partprobe $IMAGE_BLOCK_DEVICE sudo partprobe $IMAGE_BLOCK_DEVICE
echo "IMAGE_BLOCK_DEVICE=${IMAGE_BLOCK_DEVICE}p1" # To ensure no race conditions exist from calling partprobe
sudo udevadm settle
# If the partition isn't under /dev/loop*p1, create it with kpartx
if [ ! -e "${IMAGE_BLOCK_DEVICE}p1" ]; then
sudo kpartx -asv $TMP_IMAGE_PATH
DM=${IMAGE_BLOCK_DEVICE/#\/dev/\/dev\/mapper}
fi
if [ -n "$DM" ]; then
echo "IMAGE_BLOCK_DEVICE=${DM}p1"
else
echo "IMAGE_BLOCK_DEVICE=${IMAGE_BLOCK_DEVICE}p1"
fi