Is root=UUID=... a supported kernel parameter?

If yes, what is the correct format (I tried the above with the UUID reported from dumpe2fs, didn't work). If no, please consider as an enhancement request.

Please copy me on replies, there is no sense in subscribing when I can't answer other people's questions and rarely have a question myself. Google for "root=UUID Linux kernel" produced 3 documents - nothing useful. Thank you in advance for any reply.

Why do I ask? Multiple hard disks with multiple Linux distributions installed, mix and match on different computers at times. Do I dare change the various distro's '/' label to something else?

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