I am trying to use
rsync to sync files from my laptop (
Ubuntu 14.04) to an external disk. When connecting the disk I start the sync with the following command:
rsync -av --delete /home/alexander/10_Private /media/alexander/LACIESHARE/Backup
It starts fine, but later on every transfer faild because I do not have write permission on the disk any more; here part of the output of the
.... 10_Private/Vodafone/contract.jpg 10_Private/Vodafone/letter2.pdf rsync: mkstemp "/media/alexander/LACIESHARE/Backup/10_Private/Swiss/.Oeffnungszeiten.pdf.pKmrxs" failed: Read-only file system (30) rsync: mkstemp "/media/alexander/LACIESHARE/Backup/10_Private/Swiss/COOP/.Adressaenderung.pdf.zCxEJn" failed: Read-only file system (30) ....
How is it possible that rsync suddenly changes the file-system of the external disk to 'read-only'? What is going on, and how to fix this behaviour?
During the sync, I have nothing done regarding the external disk; no other file copy, file access...