I have four partition in my hard drive. I have set them to be mounted automatically on startup on "/mnt/partition_1", "/mnt/partition_2", "/mnt/partition_3" and "/mnt/partition_4". I did all this through the disk GUI in Ubuntu 15.10. When I try to do "cd /mnt/partition_1" got the message no file with such name exists. What I'm I doing wrong and how can it be solved?
My /etc/fstab contents
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=b4f0caa6-f0b1-4c8c-a3ea-2475abe36c7a / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=062adf53-8ac1-44a2-92b7-977ac8af3402 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
/dev/disk/by-uuid/36529EBE0BF46E54 /mnt/ auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=partition_1 0 0
/dev/disk/by-uuid/09837FDF492C4AE0 /mnt/ auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=partition_2 0 0
/dev/disk/by-uuid/0AB956653B7DF0A1 /mnt/ auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=partition_3 0 0
/dev/disk/by-uuid/314098B075FD9233 /mnt/ auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=partition_4 0 0