On 08/17/2014 09:38 PM, John Jason Jordan wrote: > On Sun, 17 Aug 2014 21:02:47 -0700
> > I just tried it. The following commands executed without error (both > drives were already mounted, and the folders in /media had already been > created) > > sudo mount -o remount,rw /dev/sdb2 /media/Home2 > sudo mount -o remount,rw /dev/sdc /media/Movies > > But when I try to copy anything from /media/Home2 > to /media/Movies/Backup_8.17.14 it fails because it cannot create > folders in /media/Movies/Backup_8.17.14 ("permission denied"). > > i believe the problem is ownership, but if I change the ownership of the > files in /dev/sdb2 it will be a disaster later. 1. [rant] You should be true root for this to properly work. Not "sudo" nonsense. A true root user can r/w anything to/from anywhere. Using sudo you are still in a user shell not a root shell. This can prevent you from accessing various files. IMHO, this is the greatest injustice that the *buntus and others have foisted onto the Linux public. [/rant] 2. Even though you can mount /dev/sdc, you really should not, even if Linux lets you (mount should kick an error; don't know why it didn't). That's the *drive* and you should only mount *partitions*. I sure as heck hope that was just a typo and you didn't format sdc without first making a partition. 3. "cp -a" is not an appropriate backup tool since its too slow and stupid. It was never meant to be used for large directory trees. Thus: A. Boot your live distro, gain root access. B. mount your source partition and destination partition somewhere without automount (or use remount): mount -o rw /dev/sdb2 /media/Home2 mount -o rw /dev/sdc1 /media/Movies C. mkdir -p /media/Movies/Backup_8.17.14 (if it doesn't exist) rsync -av --progress /media/Home2 /media/Movies/Backup_8.17.14 --exclude={"/media/home2/*/.local/share/Trash/*", "/media/home2/*/.cache/*"} You may want to add other excludes for any additional junk. This will create a proper archive backup. rsync is also *way* faster than cp... -Ed _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug