> Now the question remains howinhell do I put a label on a drive such
> that it does survive making a raid or lvm device with it?
LVM/MD take control of a block device (usually a partition), so any info
in that block device can't be used for your purpose. IOW you have to
put the info somewhere on the disk *outside* of the partition used by
LVM/MD.
I can see a few different options:
- Use some disk-specific tool to change the disk's serial numbers.
I'm not sure how common such tools are, they're probably
manufacturer-specific and proprietary; my intuition tells me to try
any other way first.
- Use partition labels and/or partition UUIDs: contrary to filesystem
labels, these are not stored inside the block device but inside the
partition table. They don't exist in the old MBR-style partitions,
but they do in GPT (GUID Partition Tables).
- Use an additional tiny dummy partition in which you can put any info
you like.
Stefan
