X86 dual boot: its possible? how?

[frollic]

Sysupgrade help for x86_64

So, I was playing with my APU1, and thought I'd try it myself ... The starting point is a SD card with a snapshot image written, and I added an additional 21.02.01 to the same SD card, then rebooted into 21.02.01. This is all done from the already running snapshot version note: with the default size of /dev/sda1, you will only be able to fit three kernels. you'll need: opkg install resize2fs fdisk blkid create new partition for the new openwrt version, I used 250MB. fdisk /dev/sda Comman…