Hey there!

It sounds like you’re on the right track! The black screen with a dash usually means the bootloader (GRUB in this case) might need some love. So, you’ll likely need to reinstall GRUB on your old Acer.

Here's a simple way to do it from your Fedora Live USB:

1. Open a terminal (if it’s not already).
2. Run lsblk to confirm that your old Acer’s drive is /dev/sda.
3. Mount the Fedora partition with something like:
   sudo mount /dev/sda1 /mnt
   (Make sure /dev/sda1 is the correct partition; adjust if needed).
4. Install GRUB by running:
   sudo grub2-install --boot-directory=/mnt/boot /dev/sda
5. Then create a new GRUB config with:
   sudo grub2-mkconfig -o /mnt/boot/grub2/grub.cfg
6. Reboot and fingers crossed, it should work!

It sounds a bit like magic (or some weird old ritual), but it should help your Acer find its way. Give it a shot! If it doesn’t work, let us know exactly what you see. We’ve got your back!

Thanks for the help but I don’t understand anything from the message on askubuntu.

I’ve tried the sudo mount/dev/sda3 /mnt part though..

Sorry for my lack of terminal skills

Here is what I'm getting after running through the steps you kindly gave me. The second part is the part where I'm probably not doing right..

Here is what I'm getting.

I'm almost ready to give up on my dream of establishing a perfectly tuned version of Fedora that I can deploy on all my computer just through Clonezilla..

Here's what I'm getting:

I don't think I've set up anything particular, so I guess my install is different than yours because Fedora changed something. But clearly that change doesn't help me;-)