also sprach Neil Brown <neilb@xxxxxxx> [2010.02.23.0330 +0100]: > The problem to protect against is any consequence of rearranging > devices while the host is off, including attaching devices that > previously were attached to a different computer. How often does this happen, and how grave/dangerous are the effects? > But if '/' is mounted by a name in /dev/md/, I want to be sure > mdadm puts the correct array at that name no matter what other > arrays might be visible. Of course it would be nice if this happened, but wouldn't it be acceptable to assume that if someone swaps drives between machines that they ought to know how to deal with the consequences, or at least be ready to tae additional steps to make sure the system still boots as desired? Even if the wrong array appeared as /dev/md0 and was mounted as root device, is there any actual problem, other than inconvenience? Remember that the person who has previously swapped the drives is physically in front of (or behind ;)) the machine. I am unconvinced. I think we should definitely switch to using filesystem-UUIDs over device names, and that is the only real solution to the problem, no? -- martin | http://madduck.net/ | http://two.sentenc.es/ Escape Meta Alt Control Shift spamtraps: madduck.bogus@xxxxxxxxxxx
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