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Do not return /dev/loop-control in unused_loop_device
The function unused_loop_device in /usr/libexec/zfs/common.sh returns /dev/loop-control on the first call. This device is NOT a loop device (https://github.com/torvalds/linux/commit/770fe30) it is a control device. This in turn causes the script zconfig.sh to fail with: zpool-create.sh: Error 1 creating /tmp/zpool-vdev0 -> /dev/loop-control loopback The patch makes the function return /dev/loop[0-9]* which are loop devices. Signed-off-by: Andrew Reid <ColdCanuck@nailedtotheperch.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #797
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@ -263,7 +263,7 @@ check_loop_utils() {
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# Find and return an unused loopback device.
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#
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unused_loop_device() {
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for DEVICE in `ls -1 /dev/loop* 2>/dev/null`; do
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for DEVICE in `ls -1 /dev/loop[0-9]* 2>/dev/null`; do
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${LOSETUP} ${DEVICE} &>/dev/null
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if [ $? -ne 0 ]; then
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echo ${DEVICE}
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