[SOLVED] How to mount directory on drive 2 to directory on drive 1.

area1509 · 09-12-2017, 12:40 AM

Hi all.
I am running linux mint 18.2 on a dell inspiron 7737 with the dvd drive removed and a hard drive in it's place.
+++++++++++++++++++++++++++++++++++
output of sudo blkid

Code:

/dev/sda1: UUID="6C63-B389" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="31adb522-6ece-4c31-9dd2-e02f7d36fa33"
/dev/sda2: UUID="26f2af11-1d92-4c66-ad9b-99031075b935" TYPE="ext4" PARTUUID="27b2cdf2-fa89-4802-b324-18830e8b8602"
/dev/sda3: UUID="e4f3aef1-bb8a-4a73-a553-6a17c1f59949" TYPE="swap" PARTUUID="f9fa25ca-ad4a-41bf-9de2-d32788976740"
/dev/sdb2: UUID="82aba9ed-4882-511c-0976-123de4efea97" TYPE="ext4" PARTUUID="8fc1a4da-e5ab-46d3-9e7c-ce1993a3585c"

++++++++++++++++++++++++++++++++++++
sda1,sda2,sda3 are all on the boot ssd.
sdb2 is a 1TB spinning hard drive in the dvd bay.

In the root on the 1TB drive I have Documents, Music, Downloads, ETC.

on the boot SSD i have my home directory, I would like to mount the Documents dir on drive 2 to my home Documents.

here is my fstab file anytime I uncomment any of these lines the computer refuses to boot until I comment them out.
I don't understand why please help.

FSTAB

Code:

# /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/sda2 during installation
UUID=26f2af11-1d92-4c66-ad9b-99031075b935 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation
UUID=6C63-B389  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda3 during installation
UUID=e4f3aef1-bb8a-4a73-a553-6a17c1f59949 none            swap    sw              0       0


/dev/disk/by-uuid/82aba9ed-4882-511c-0976-123de4efea97 /mnt/82aba9ed-4882-511c-0976-123de4efea97 auto nosuid,nodev,nofail,x-gvfs-show 0 0

# added by A.J. for user folders >>>>>>>>>>>>>>>>>>>>>>>>>
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Music		/home/area/Music	ext4	defaults	0	0
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Documents	/home/area/Documents	ext4	defaults	0	0
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Downloads	/home/area/Downloads	ext4	defaults	0	0
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Google-Drive	/home/area/Google-Drive	ext4	defaults	0	0
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Videos	/home/area/Videos	ext4	defaults	0	0
#/mnt/82aba9ed-4882-511c-0976-123de4efea97/Pictures	/home/area/Pictures	ext4	defaults	0	0

# <<<<<<<<<<<<<<<<<<<<<<<<<<<<<

END FSTAB

ondoho · 09-12-2017, 02:13 AM

Code:

mv /home/area1509/Documents /home/area1509/Documents.bak
su
echo "UUID=82aba9ed-4882-511c-0976-123de4efea97 /home/area1509/Documents ext4 defaults,comment=x-gvfs-show 1 2" >> /etc/fstab"
reboot

next time, please use code tags for code.

rknichols · 09-12-2017, 10:18 AM

If you want to mount a directory (i.e., part of a filesystem) on another directory, you need to use the "bind" mount option.

Code:

/mnt/82aba9ed-4882-511c-0976-123de4efea97/Music /home/area/Music none bind 0 0

You're not mounting a whole filesystem, so you want "none" for the filesystem type.

area1509 · 09-12-2017, 05:25 PM

First of all Thank you rknichols you led me in the right direction.

to get this to work I had to first mount the second hard drive like this.

Code:

/dev/disk/by-uuid/82aba9ed-4882-511c-0976-123de4efea97 /mnt/82aba9ed-4882-511c-0976-123de4efea97 ext4 nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=Disk2 0 0

Mint > Preferences > Disks
Select the disk > Select the partition on the disk > Gear icon > Edit mount options.
Set Automatic mount options to Off
Select Mount at startup
Give it a Display name (I don't know if this did anything)
Change the file system to ext4 (Again I don't know if this did anything)
reload fstab with

Code:

sudo mount -a

edit fstab to add one line for each directory.

Code:

/mnt/82aba9ed-4882-511c-0976-123de4efea97/Music /home/area/Music none bind 0 0

Thank you, Ondoho and rknichols.