I have flashed openwrt18.06 at the internal flash of my omnia and it is working good for a year now. I have an mSATA SSD 128G installed on the router.
I want to test TO4 and I see there are relevant instructions here
I am wondering if I can flash TO4 at the mSATA SSD (which i will format btrfs) and be able to dual boot.
If this is possible, I am also wondering if I will be able to dual boot remotely (uboot-envtools are available in openwrt).
I will appreciate any guidance.