mount -o uid=1000 /dev/sdb1 /mnt mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so.
it used to work, i don't know what i am missing.
uname -r 3.19.0-21-generic mount -V mount from util-linux 2.25.2 (libmount 2.25.0: selinux, assert, debug)
help is appreciated. thanks.
edit : filesystem on sdb1 is ext4
journalctl | tail -1 EXT4-fs (sdb1): Unrecognized mount option "uid=1000" or missing value
edit : when "it used to work" i had vfat on the usb