Just disconnected, power-cycled then reconnected the drive. /var/log/messages tell me: Oct 26 20:50:10 homebase kernel: EXT4-fs warning (device sdd1): ext4_clear_journal_err: Filesystem error recorded from previous mount: IO failure Oct 26 20:50:10 homebase kernel: EXT4-fs warning (device sdd1): ext4_clear_journal_err: Marking fs in need of filesystem check. Oct 26 20:50:10 homebase kernel: EXT4-fs (sdd1): warning: mounting fs with errors, running e2fsck is recommended Oct 26 20:50:10 homebase kernel: EXT4-fs (sdd1): recovery complete Oct 26 20:50:10 homebase kernel: EXT4-fs (sdd1): mounted filesystem with ordered data mode. Opts: First it comes in as sdd when previously it was sdc. But the drive is now R/W. So do I run e2fsck, and with what options. From the manpage I am assuming I better umount it first... On 10/25/2015 11:16 AM, Robert Moskowitz wrote: > > > On 10/25/2015 11:12 AM, Barry Brimer wrote: >> I 'just' noticed that at some point, my USB backup drive on my server >>> is >>> mounted as read-only and all of my background sync cron jobs have been >>> failing. >>> >>> So I need to fix this without rebooting the server. >>> How can I get this drive r/w? >> Have you tried "mount -o remount,rw <mountpoint>"? > > # mount -o remount,rw /media/HD103SI/ > mount: cannot remount block device /dev/sdc1 read-write, is > write-protected > > >> The unanswered question here is why did it go read only, and does >> this condition still exist? > > The burning question of the day...... > > Should I 'just' unplug it, power cycle it and reconnect it? > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >