I am having a Raspberry Pi 3b+ (Arch64) device. Generally I run Raspbian 64-bit by using the Rasbian Imager tool to setup my SD card.
I am interested to run Archlinux 64-bit on the same. And following the official guide to set it up from
I have successfully setup the SD card by creating the required partitions and Filesystems. I have also updated the /etc/fstab with the correct PARTUUIDs to mount the / and /boot partitions.
Now I have observed that I need to update the /boot/boot.txt appropriately and run ./mkscr command after installing uboot-tools on another running arch64 linux system. Fot this I have used a Archlinux arch64 instance from UTM on MacOS M-series machine.
The question is what to update i the /boot/boot.txt file. Below is the entire /boot/boot.txt file already included in the downloaded tarball:
# After modifying, run ./mkscr # Set root partition to the second partition of boot device part uuid ${devtype} ${devnum}:2 uuid setenv bootargs console=ttyS1,115200 console=tty0 root=PARTUUID=${uuid} rw rootwait smsc95xx.macaddr="${usbethaddr}" if load ${devtype} ${devnum}:${bootpart} ${kernel_addr_r} /Image; then if load ${devtype} ${devnum}:${bootpart} ${fdt_addr_r} /dtbs/${fdtfile}; then if load ${devtype} ${devnum}:${bootpart} ${ramdisk_addr_r} /initramfs-linux.img; then booti ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}; else booti ${kernel_addr_r} - ${fdt_addr_r}; fi; fi; fi I think I need to update the line:
part uuid ${devtype} ${devnum}:2 uuid
Can anyone suggest what needs to be changed here and does any other file needs to be changed in /boot/ for the system to work?
part uuid ${devtype} ${devnum}:2 uuidis confusing in that the last argument is an environment variable named uuid and the second argument is the "uuid" sub-command of "part". The effect is to set the uuid environment variable to the partition UUID of partition 2 of devnum, of devtype. If nothing is setting those, you probably need devtype=mmc and devnum=0 or 1.part uuid mmc 0:2 uuid ORpart uuid mmc 0:2 abef12cd-02, where abcef12cd-02 is the part-uuid of the root partition. And on the same note, does that mean, every ${something} is a place holder and I need to replace it with appt. data in boot.txt?