Sorry, may be wrong category, but did not see a better option.
I am a noob, really. Many years ago I used to use Fedora 14, and still have it installed as dual boot with Windows. Recently I messed up adding an extra hard-drive to my Fedora install. Now when I try to boot Fedora I get the error message that it is failing to mount the added disk and kicks me out to a command prompt to fix the disk header, and it gives me only read access to files. I do not have the extra HDD anymore, long story, and need to be able to edit /etc/fstab to remove the last line which refers to the mounting of that disk. However the console has only read access so I am unable to edit /etc/fstab.
I have tried to use both RescueDisk, and a lice image of Fedora 32, but so far have not figured out how I can mount my resident Fedora 14 install.
I would be very grateful for any help ! I would include an image of the boot error screen (I took a picture) but I do not see a way to include an image here.