How can I move my existing EFI and swap partitions to the end of the drive?

  1. Get an external drive (USB-HDD or -SSD) on which to backup everything.

  2. Get a large enough USB stick and copy the ISOs you want. (Alternatively you can also use a USB HDD/SSD.)
    Ventoy is a very good tool to use for such a purpose that resolves any trouble multibooting of many ISO-files easily. Be sure to include Gparted-LiveISO and Clonezilla-LiveISO on your USB-stick or -drive.

From there, you’re free to go any direction you want!

  1. Boot Clonezilla live on your (Ventoyed) USB to backup your old partitions to the new external USB drive, HD or SSD, the one to contain all your backups.

  2. Then use Gparted live, again from USB to layout your partitions on the old (internal) drive.

  3. Do clean installs on to the newly created partitions on your old internal drive… all from your Ventroy stick or drive.

  4. Restore your needed files from the backups to the newly installed system(s).

P.S. - If you decide for a thumb drive, storage and read/write speeds matter.

:laughing:

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