Unix & Linux: Moving /var, /home to separate partition (4 Solutions!!)
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The Question: I am attempting to move some folders (such as /var and /home) to a separate
partition after reading this guide:
http://www.debian.org/doc/manuals/sec...
I was able to move one folder successfully following http://blog.oshim.net/
2011/10/how-to-move-var-folder-to-new-partition.htmlguide.
However, it doesn't seem to work for multiple folders, and all my folders are
dumped into the partition without proper folders.
I would like to mount /var, /home, and /tmp onto the separate partition; can
someone guide me on this?
Solutions: Please watch the whole video to see all solutions, in order of how many people found them helpful
== This solution helped 77 people ==
1. First you need some unallocated space to create the partitions for each
mountpoint (/var, /home, /tmp). Use Gparted for this.
2. Then you need to create the filesystems for those partitions (can be done
with Gparted too) or use:
mkfs.ext4 /dev/sdaX
for example to create a new ext4 filesystem on the /dev/sdaX device (replace /
dev/sdaX with your own device)
3. Mount the new filesystem under /mnt
mkdir /mnt/var
mount /dev/sdaX /mnt/var
4. Go to single-user mode so that there is no rw activity on the directory
during the process
init 1
5. Enter your root password.
6. Backup data in var only (not the /var directory itself)
cd /var
cp -ax * /mnt/var
7. Rename the /var directory after your data has been transferred successfully.
cd /
mv var var.old
8. Make the new var directory
mkdir var
9. Unmount the new partition.
umount /dev/sdaX
10. Remount it as /var
mount /dev/sdaX /var
11. Edit /etc/fstab file to include the new partition, with /var being the
mount point, so that it will be automatically mounted at boot.
/dev/sdaX /var ext4 defaults 0 0
12. Repeat steps 1-11 for /home and /tmp.
13. Finally return to multitasking mode.
init 5
== This solution helped 16 people ==
If you want to use them all on the same partition you can either use LVM or
three simple bind mounts.
To create a bind based solution you
1. create a partition with a filesystem
2. go to rescue mode (single user still needs some of the folders)
3. mount it as /mnt/data
4. Move all folders you want to move. Using cp and mv dir dir.old might be
safer, but since I did this after install it did not matter to me.
mv /home /mnt/data/
mv /var /mnt/data/
5. create appropriate bind mount entries in fstab, for example I have
UUID=01234567-89abc-def0-1234-567890abcde /mnt/data ext4
noatime,nodiratime,relatime 0 0
Binds
/mnt/data/opt /opt none
bind 0 0
/mnt/data/home /home none
bind 0 0
/mnt/data/usr /usr none
bind 0 0
6. reboot
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