so it took a bit, but it seemed the following things just helped be install tow-boot:
1. i downloaded it to the SD OS home folder and not my internal, shared nvme drive
2. PaulFerster advised on chat I retry flashing, using just flashcp
3. He also gave me a hexdump command to run on Tow-Boot.spi.bin and /dev/mtd0 after the flash
then
After checking they matched, I rebooted and Tow-Boot!
1. i downloaded it to the SD OS home folder and not my internal, shared nvme drive
2. PaulFerster advised on chat I retry flashing, using just flashcp
Code:
sudo flashcp Tow-Boot.spi.bin /dev/mtd0
Code:
hexdump -C -n 64 Tow-Boot.spi.bin
Code:
sudo hexdump -C -n 64 /dev/mtd0
After checking they matched, I rebooted and Tow-Boot!