I do not have an IT background. I am working things out on my own, so I would really appreciate your help on this as I am in a panic at the moment.
I wanted to increase the size of my /home directory (as a normal user). I followed the steps provided below by Ari: How to shrink /home and add more space on CentOS7
However, after following the steps (except that I saved the backup in the /root (as superuser), I could no longer login back to my account.
When I used the GUI to login, my password was accepted by the system. But then the screen turns blank and then I am sent back to the login screen. When I checked /etc/passwd, I could see my account name and home directory as /home/myname.
Can I still recover my account? I have very important files and software. What should I do?
The following is the original post by Ari:
As others have pointed out, XFS filesystem cannot be shrunk.
So your best bet is to backup /home, remove and recreate its volume in a smaller size and give the rest to your /root volume just as Koen van der Rijt outlined in his post.
• backup the contents of /home
tar -czvf /root/home.tgz -C /home . • test the backup
tar -tvf /root/home.tgz • unmount home
umount /dev/mapper/centos-home • remove the home logical volume
lvremove /dev/mapper/centos-home • recreate a new 400GB logical volume for /home, format and mount it
lvcreate -L 400GB -n home centos mkfs.xfs /dev/centos/home mount /dev/mapper/centos-home • extend your /root volume with ALL of the remaining space and resize (-r) the file system while doing so
lvextend -r -l +100%FREE /dev/mapper/centos-root • restore your backup
tar -xzvf /root/home.tgz -C /home • check /etc/fstab for any mapping of /home volume. IF it is using UUID you should update the UUID portion. (Since we created a new volume, UUID has changed)
