This is a multipath issue. I’d suggest to stop multipathd service before applying Dell updates. This will not affect currently running multipath devices. On 23/06/2017, 13:32, &quot;users-bounces(a)ovirt.org on behalf of Davide Ferrari" <users-bounces(a)ovirt.org on behalf of davide(a)billymob.com&gt; wrote: Hello I'm trying to update the BIOS firmware on a Dell PowerEdge with CentOS (just upgraded to 7.3) running oVirt 4.0 and it fails with an error mount: /dev/sdb is already mounted or /tmp/SECUPD busy The problem is acknoleged by Red Hat and there is a solution for it https://access.redhat.com/solutions/2671581 but well, I have no RH subscriptions :( Has anyone here encountered the same problem with CentOS and oVirt? Any hint? Thanks! -- Davide _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users