1. Problems
A prompt appears: the read-only file system cannot be resized, the file system can only be resized when mounted
2. Solution steps
Step 1: To view the detailed information of the read-only file system, click Information
Step 2: View the folder directory mounted on the disk (note: the mounted location is separated by , it is easy to ignore / )
My hangs are at: / and /var/snap/firefox/common/host-hunspell
Step 3: Open the terminal with root privileges, and remount the read and write permissions of the folder directory
Take mine as an example:
sudo -i
mount -o remount -rw /
mount -o remount -rw /var/snap/firefox/common/host-hunspell
Step 4: After refreshing the device in gparted, you can resize the file system
