Messages in this thread | | | Date | Sun, 19 Jul 2009 08:01:22 -0700 | From | Linda Walsh <> | Subject | disk Partition label changes and reflecting them in /dev/disks-by-label/ |
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If I have a disk with no mounted partitions and I change the partition order, the OS will re-read the new partition and life goes on.
However, if I create or change a new disk label, it seems label programs (and users) should have an option to reread the labels after the modification.
Ideally any prog that changes a Label or UUID would trigger an update of what's in /dev/disks to reflect the new 'reality'.
Currently, I go through through a seemingly bizarre ritual of invoking unmounting all other partitions on the same disk, then becoming root, running fdisk on the disk, then just exiting with "w". This triggers a reread of not only the partition table, but also the new labels.
However, I find this far less than ideal. Is there a better way, or could there be a better way to update new Labels and UUID's that are actually on a disk -- perhaps even as an ordinary user command (since it would be a read-only operation on the disk that simply updates /dev/disk to reflect what's really there -- Especially being able to change only the label (or UUID), only on one partition w/o having to actually unmount other file systems on the disk....?
Already implemented? Or doable? Or bad idea?
Thanks, -linda
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