Hi all
On Ubuntu Desktop 13.04 64bit the loop device partitions do not automatically
get deleted when you call "losetup -d DEVICE". This causes other programs
(like lvmdiskscan -l) to report Input/output errors.
Here is how to reproduce the problem:
LOOPDEV=/dev/loop3
IMAGEFILE=`pwd`/mydisk.img
MOUNTPOINT=`pwd`/mnt
# 1. Create and mount an ext4 partition from a file-based disk image
dd if=/dev/zero of=$IMAGEFILE bs=1M count=80
sudo losetup $LOOPDEV $IMAGEFILE
sudo parted $LOOPDEV mklabel msdos
sudo parted $LOOPDEV mkpart primary 2048s 43007s
sudo mkfs -t ext4 ${LOOPDEV}p1
mkdir $MOUNTPOINT
sudo mount ${LOOPDEV}p1 $MOUNTPOINT
# 2. Unmount again => ERROR: the partition device files are not deleted
sudo umount $MOUNTPOINT
sudo losetup -d $LOOPDEV
rmdir $MOUNTPOINT
rm $IMAGEFILE
ls -l ${LOOPDEV}*
The last command shows:
/tmp/test[10:18]% ls -l ${LOOPDEV}*
brw-rw---- 1 root disk 7, 3 Sep 24 18:18 /dev/loop3
brw-rw---- 1 root disk 259, 0 Sep 24 18:17 /dev/loop3p1
As no device is connected there is no partition 1! Isn't this a bug?
Regards
BB.
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