On Wed, 2021-08-25 at 21:21 -0700, Geoffrey Leach wrote: > I have a script that mounts an MP3 device, copies files and umounts. > As I have counted on the umount to hang until the data transfer is > complete. That has worked fine until recently. Now the umount > finishes, leaving much of the data uncopied.
Just to be very clear: Have you issued a string of commands, so that you expect all the copy commands to be executed in series before the unmount command is issued? Write-caching can be a problem, though the system shouldn't be unmounting before the cache is flushed. Or have you issued the copy and unmount commands, and hope that the actual copying will hold the unmounting at bay until finished? Parallel commands can be a problem, if you expect them to be issued in one order, but they don't quite get queued up in the way you expect. This sounds rather similar to the problem I've seen with with USB flashdrives, and SD cards, where I've seen the message pop up on the screen telling me it's okay to unplug the drive, but clearly the data transfers actually haven't yet finished. In my case, that would be some time after dragging and dropping files onto the destination, then waiting what seemed a reasonable amount of time before I right-clicked to eject or unmount the device -- uname -rsvp Linux 3.10.0-1160.36.2.el7.x86_64 #1 SMP Wed Jul 21 11:57:15 UTC 2021 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
