Not able to write to USB disk

Tharayman · 05-30-2019, 03:15 AM

At first I did not have ownership to it, I think maybe because it has a HFS filesystem.
Found out it was mounted to /dev/sdf2 and ran $sudo chown -R raymond /dev/sdf2
$ ls -ld /dev/sdf2
brw-rw---- 1 raymond disk 8, 82 mai 30 09:16 /dev/sdf2

So, looks like I am the owner now, but I still can not read or write!
What am I missing? Is there no way to change ownership outside of terminal?

evo2 · 05-30-2019, 03:30 AM

Hi,

/dev/sdf2 is not where it is mounted, it is the location of the device. I'm assuming you want to copy files to it or something. In that case you need to mount it. eg

Code:

mount -t hfs /dev/sdf2 /mnt
cp myfile.txt /mnt/
sync
umount /mnt

Evo2.

Tharayman · 05-30-2019, 06:50 AM

Right!

Turn out it is mounted to /media/raymond/High sierra patcher so using your mount command does not work.
but I guess that is not a valid directory? High sierra patcher is the name of the stick.

DavidMcCann · 05-30-2019, 10:24 AM

That's quite natural. If the device is labeled, then the label name will be used by mount: I had one which automounted as /media/Verbatim Store'nGo. You can stop that by creating a suitable directory in /media and a suitable entry in /etc/fstab. I use
/dev/sdb1 /media/usb auto rw,user,noauto,exec,noatime,nodiratime 0 0
Alternatively, use gparted to remove the label.

If you can read the device but can't write to it, it may have a corrupt filing system, so you'd need to unmount and use fsck to clean it.