I have 2 HDD drives in my computer. At the moment second drive is mounted as
How can I move my user data from
Can I just move the data over there and then simply symlink it back?
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To avoid side effects while working in a graphical, environment we should perform all actions to move HOME from a terminal with Ctrl+Alt+F1.
sudo mkdir /mnt/tmp sudo mount /dev/sdb1 /mnt/tmp
assuming /sdb1 is the new partition for HOME
sudo rsync -avx /home/ /mnt/tmp
We then may mount the new partition as HOME with
sudo mount /dev/sdb1 /home
to make sure all data are present. Easiest is to delete the old
/home at this point (you could do this later but then you will have to boot a live system to see the old home):
sudo umount /home # unmount the new home first! sudo rm -rf /home/* # deletes the old home
We need to know the UUID of the new partition for the
fstab entry seen from:
Note or copy/paste the correct UUID to edit your
sudo nano /etc/fstab # or any other editor
and add the following line at the end:
UUID=<noted number from above> /home ext4 defaults 0 2
Take care to choose the appropriate filesystem here, e.g.
ext3 if ext3 formatted
After a reboot, your
/home resides on the new drive having plenty of space.
usermodfor this task. Feb 10, 2013 at 10:39
If you want to just move your home directory i.e /home/your-username then simply copy your home directory to other partition and then use System->Administration->Users & Groups to open user settings dialog. Click on the keys icon to authenticate your self
After that select the user that you want to change and click properties, go to advanced tab
change the home directory to new directory i.e the directory that you copied to other partition.
The official detailed procedure is here on the Ubuntu help wiki
sudo -H gedit /etc/fstab
and add these lines into it
UUID=???????? /media/home ext4 defaults 0 2
and replace the
???????? with the UUID number of the intended
Save and close the
fstab file, then type the following command:
sudo mkdir /media/home
/hometo the new partition
sudo rsync -aXS --progress --exclude='/*/.gvfs' /home/. /media/home/.
sudo diff -r /home /media/home -x ".gvfs/*"
Note: You can also expect to see some errors about files not found. These are due to symbolic links that point to places that don't presently exist (but will do after you have rebooted). You can ignore these - but check out anything else.
sudo -H gedit /etc/fstab
and now edit the lines you added earlier, changing the
/media/home part to simply say
/home so that it looks like this:
UUID=???????? /home ext4 defaults 0 2
cd / && sudo mv /home /old_home && sudo mkdir /home
Reboot or remount all with this:
sudo mount -a
Indeed. it is a great way to easily change the home directory location of a specific user. While reading the question, I was understanding that this would have been for the /home directory globally. In this case, you could create the partition on the other device, manually move all files there and then change the device for the mount point in /etc/fstab file itself
ok, the only way I found this would work is to create another user, give it admin authority, logoff the main id, logon with the new id and then use usermod command.
Plugin all necessary SATA and power cables to your HDDs. Load Ubuntu. Press keyboard and type "Disks". "Disks" utility will be opened:
In this utility you could format your HDDs into Ext4 file system. Otherwise to format disks use commands:
For example, but I'm not sure with parameters because used GUI "Disks":
sudo mkfs.ext4 -L purple /dev/sdb # not sure with parameters sudo mkfs.ext4 -L gold /dev/sdc # not sure with parameters
Keep in mind, that formatting will delete everything on target hard disk. You can skip this step if there are any data on the hard disk and you want to not lose it.
Slow formatting should take a lot of time: from 16 up to 20 hours for 4TB disk.
# Press CTRL+ALT+T and open a console. # Check your /dev/sdb and /dev/sdc discs are visible: lsblk # Create directories for the new HDD WD Purple and WD Gold sudo mkdir /hdd_purple sudo mkdir /hdd_gold # temporary directory # Temporary mount to the new mount point sudo mount /dev/sdb1 /hdd_purple sudo mount /dev/sdc1 /hdd_gold # Unmount drives sudo umount /dev/sdb1 sudo umount /dev/sdc1 # Configuration file /etc/fstab has list of all partitions that will be mounted at boot. # 1. Show and copy UUID of the HDD with this command: sudo blkid # My data is: # /dev/sdb1: LABEL="purple" UUID="6ce9ec1f-3bf5-420f-8502-1b4f55f2fc60" TYPE="ext4" PARTUUID="a14c8357-a8ce-42e4-9772-64ccfad3e226" # /dev/sdc1: LABEL="gold" UUID="1d049c7c-4565-480b-a181-2459e8ff8c1b" TYPE="ext4" PARTUUID="4c691b21-b4e3-4dab-ab91-d7bf7272b2b5" # Make a backup of that file to be able to revert changes. sudo cp /etc/fstab /etc/fstab.2018.11.29.bak # 2. Add a new partitions by editing /etc/fstab file as root: sudo nano /etc/fstab # 3. At the bottom of fstab file add 2 lines similar to this: UUID=6ce9ec1f-3bf5-420f-8502-1b4f55f2fc60 /hdd_purple ext4 defaults 0 2 UUID=1d049c7c-4565-480b-a181-2459e8ff8c1b /hdd_gold ext4 defaults 0 2 # Your UUID have to be different! # Write the file with keys <Ctrl+O> then <Return>. Quit the editor with <Ctrl+X>. # If you have Midnight Commander running, then save before quitting with <Ctrl+X>, # because <Ctrl+O> will switch from nano editor to your MC. # To see if the drive is mounted correctly we can simulate the mount process at boot with: sudo mount -a
# To avoid side effects while working in a graphical, environment # we should perform all actions to move HOME from a terminal with Ctrl+Alt+F3. # Press <Ctrl+Alt+F3> and swidth to console mode. # Login in the console mode. # Copy HOME to the new location: sudo rsync -avx /home/ /hdd_gold # Delete everything in the HOME directory. # Be careful with this command, make sure you have a backup. rm -rf /home/* # Make HOME permanent -- edit /etc/fstab configuration file sudo nano /etc/fstab # Change string UUID=1d049c7c-4565-480b-a181-2459e8ff8c1b /hdd_gold ext4 defaults 0 2 # to string UUID=1d049c7c-4565-480b-a181-2459e8ff8c1b /home ext4 defaults 0 2 # /hdd_golds change to /home directory # After a reboot, your /home resides on the new drive having plenty of space. sudo reboot
usermod -m -d /path/to/non_existent_home_dir username, switch back to your account (username), remove temp admin user. Although it is still 5 steps, way fewer than other answers, way less risky and way simpler steps.