On 1/24/24 12:42 AM, Greg Wooledge wrote:
You'll have to unmount it, which generally means you will have to reboot in single-user mode, or from rescue media, whichever is easier. If you aren't opposed to setting a root password (some people have *weird* self-imposed restrictions, seriously), single-user mode (aka "rescue mode" from the GRUB menu) is the standard way to do this. Boot to the GRUB menu, select rescue mode, give the root password when prompted, then you should end up with a root shell prompt. I don't recall whether /home will be mounted at that point; if it is, unmount it. Then you should be able to do whatever resizing is needed. When done, exit from the shell, and the system should boot normally.
I do not have root account. (I use sudo from my user account.) I think I already tried rescue mode in the past but was not prompted for root password.