on my HP laptop, Ubuntu 21.04 is installed.
I wanna partition my disk to have both Ubuntu 21.04 and 20.04.
So I made a booting USB and plugged it to partition the existing disk into two.
However, when booting through the USB, gparted in "Try Ubuntu" mode cannot detect the other disk.
How can I fix it? Or, I don't want it, but can I remove the Ubuntu 21.04 and just install Ubuntu 20.04?
When booting on laptop disk
When booting on USB disk
