overlay/036: filter busy mount message
[xfstests-dev.git] / README.device-mapper
1
2 To use xfstests on device mapper always use the /dev/mapper/<name> symlinks,
3 not the /dev/dm-* devices, or the symlinks created by LVM.
4
5 For example:
6
7 TEST_DEV=/dev/mapper/test
8 SCRATCH_DEV=/dev/mapper/scratch