As I mentioned here - New install: unable to switch to unstable because systemd-boot version - #2 by waffle8946
You can delete the files mentioned in the error and reinstall the bootloader, if you simply must upgrade now.
As I mentioned here - New install: unable to switch to unstable because systemd-boot version - #2 by waffle8946
You can delete the files mentioned in the error and reinstall the bootloader, if you simply must upgrade now.