Hi all,
I just bought a new motherboard and I’ll be buying a new CPU, too. The current one is a gigabyte 520i AC AM4 with an AMD Ryzen 7 5700G on it currently. The new one is also gigabyte 550M AM4 and the new processor is Ryzen 7 5800xt. I currently dual boot Cachy OS and windows 11. Each has their own boot partition and I use grub. I’m going to bring everything over from the old mobo except the cpu that will stay on it since it’s going into another pc. Meaning, I’m bringing my SSDs and all that. Will I need to reinstall (please say no lol)? Will it be just plug and play or will I need to fiddle with a live environment to chroot?
Please let me know if you need more info. Thank you in advance.
This is actually not even necessary. The systems are similar enough it’ll just work. I have recently swapped an SSD from a laptop to a newer model with CachyOS, and that was more of a generational jump in terms of cpu and other hardware.
But CachyOS has a quirk. Linux systems specify which partitions are mounted to which directories in the /etc/fstab file. Unfortunately, the boot partition is specified using a device name and not a UUID. this is problematic when switching an SSD from a system to another as this may very well change device names. It did for me and I then had to rescue boot + chroot to fix it.
The fix, if done before, is trivial: edit the line for /boot in that file to start with UUID= (followed by the actual UUID of the partition) instead of with /dev/nvme0n1p1 or whatever the current device name is. Google should be able to tell you how to find the UUID of your boot partition.