On 2021-08-26 10:48 a.m., Gordon Messmer wrote:
On 8/25/21 9:26 PM, Samuel Sieb wrote:
You could add a "sync" after the copy and before the "umount".
https://utcc.utoronto.ca/~cks/space/blog/unix/TheLegendOfSync
We're getting into myths and legends territory. Running sync before
umount isn't harmful, but umount will flush any dirty buffers, so it
isn't necessary.
I'm not suggesting any myths. I agree that umount is supposed to sync
before finishing, but if something is going wrong with the umount, then
the sync will at least make sure everything is written.
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