Topic: Backup Error

[mercyh]

The destructive way to test it would be to attempt a reformat of the drive.

[Stefano]

For the last 3 days now, my backup process is reporting this error.

so, something changed on march, 26th.. anything interesting in the logs?
did you change anything on your  usb disk? does it have any kind of write protection switch?

[janet]

WF168Tech

1) Firstly, have you tried unplugging both the USB lead and the power lead from your external USB drive.
Please do so.
Then wait 30 seconds, reconnect power, wait another 30 seconds then reconnect the USB lead.
See if backup will run.

2) For a variety of reasons backups can become corrupted.
Without having diagnosed why or if that is for sure the case here, I'd suggest a file corruption, so it may be simple just to delete set5 and then see what happens.
Of course that older backup set will be lost, so copy it off first if you really must keep it.

mount /media/SEAGATE/
rm /media/SEAGATE/smeserv.wfschools.org/set5/
answer yes as required
umount /media/SEAGATE/

Run backup and see what happens

[CharlieBrady]

2) For a variety of reasons backups can become corrupted.
Without having diagnosed why or if that is for sure the case here, I'd suggest a file corruption, so it may be simple just to delete set5 and then see what happens.

Mary, the file cannot be deleted from a filesystem which is mounted read-only.

There is also no evidence that the file is corrupted.

The file system needs to be unmounted, and the filesystem checked for corruption (or reformatted). Check if the device has a write-protect switch or tab. Check /var/log/messages for anything relevant, especially around March 26th.