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How do I prevent disk renumbering on reboot in OS X?

Fresh7 days ago
Mar 15, 20265621 views
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Problem

I have 3 physical drives in my Mac Pro with Mac OS X 10.6.4. Occasionally after rebooting the machine, the disk numbering changes such that the /dev/disk# does not reference the same drive as it did before the reboot. Example After rebooting the mapping might be Even more confusing is that the rema…

Error Output

/dev/disk0 -> 64GB SSD drive
/dev/disk1 -> 640GB Hitachi
/dev/disk2 -> 160GB WD (BootCamp)

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Fix for: How do I prevent disk renumbering on reboot in OS X?

Low Risk

As far as i understand MacOS doesn't have that capability, although for running parallels it might not be strictly necessary. using macports and installing e2fsprogs with a small patch: you can use blkid -s UUID /dev/rdisk* to enumerate partitions, …

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Environment