The uuid= I believe requires a link that udev creates when the device gets created and it scans it. That link may or may not be done when mdadm returns with 0 as that udev/link creating is not in the mdadm code path.
So wait a second before you mount it. In reality it will probably happen much faster than 1sec. I think the specific udev rule doing it is in /lib/udev/rules.d/60-persistent-storage.rules and this happens after udev processes the event when the device shows up. the link will be in /dev/disk/by-uuid/ so if once the mdadm exists do a ls -l against that dir and then sleep a second and do it again something new will show up. On Tue, Jun 23, 2020 at 11:45 AM Patrick O'Callaghan <pocallag...@gmail.com> wrote: > > On Tue, 2020-06-23 at 09:23 -0700, Doug H. wrote: > > > I'm assuming that once mdadm returns 0 the array is up and running. > > > > > > Perhaps a simpler way to assure that it is running is to check a static > > file that you place on the raid. If it is there then the raid is up. It > > would show the file as long as it is running, even if it is degraded. > > On second thoughts, that will only work if it's mounted, which happens > after I check that it's up. > > Thanks anyway. > > poc > _______________________________________________ > 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 _______________________________________________ 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
