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Christoph Hellwig
0a818862bb
Because of udevs complaining device mapper now creates /dev/dm-N as the real device nodes, and just symlinks the /dev/mapper/ names to it. This would be easy if everything used the /dev/mapper clear names, but most system utilities translate them back to the /dev/mapper/ names and thus confuse various test cases. Add support to _is_block_dev to read symlinks, and add documentation on how to run xfstests on device mapper volumes. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
9 lines
210 B
Plaintext
9 lines
210 B
Plaintext
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To use xfstests on device mapper always use the /dev/mapper/<name> symlinks,
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not the /dev/dm-* devices, or the symlinks created by LVM.
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For example:
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TEST_DEV=/dev/mapper/test
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SCRATCH_DEV=/dev/mapper/scratch
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