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Grab the next available /dev/nbdX.

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Change-Id: I6a2c8e58cdab889d747e870d0009f51bba0ff148
This commit is contained in:
Lucas Alvares Gomes 2013-04-12 17:49:23 +01:00
parent 66b563e466
commit b20e133714
1 changed files with 4 additions and 9 deletions
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13
bin/disk-image-create
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@ -98,15 +98,10 @@ eval_run_d block-device-size "DIB_IMAGE_SIZE="
qemu-img create -f qcow2 -o preallocation=metadata $TMP_IMAGE_PATH ${DIB_IMAGE_SIZE}G
# Should have a grab-next-dev helper ?
NBD_DEV=/dev/nbd0
if [[ $(qemu-nbd --help | grep cache) == *writeback* ]] ; then
CACHE="--cache=writeback"
else
echo "Warning: qemu-nbd without --cache=writeback is /slow/."
CACHE=""
fi
sudo qemu-nbd -c $NBD_DEV $CACHE $TMP_IMAGE_PATH
# grab the next available /dev/nbdX and connect to it
map_nbd $TMP_IMAGE_PATH
echo "NBD Device: $NBD_DEV"
export EXTRA_UNMOUNT="sudo qemu-nbd -d $NBD_DEV"
export IMAGE_BLOCK_DEVICE=$NBD_DEV
eval_run_d block-device "IMAGE_BLOCK_DEVICE="