Creating a rootfs image (Raspberry Pi 4)
Hey I'm looking to create an image for my raspberry pi to boot, but the provided binary/boot RHEL 8 isos all required EFI compatibility to boot.
I've had luck downloading the KVM guest images and extracting the XFS partition, but they seem to be read only file systems.
So right now I'm looking to either:
a. Make the file system read/write again
b. Generate an aarch64 image with everything already installed
As for b, Image Builder looked promising, but I don't think I can use an x86_64 machine to generate aarch64 images, so I'm just kind of stuck right now
EDIT: Also I currently have a running RHEL 8 cloud image on my pi, but like I said, the filesystem is read only right now.
EDIT 2: Looks like my UUID changed, updated my fstab and root file system is writeable now
Responses
I've actually never tried to boot rpi in aarch64 (way behind in my to-do list), but here's my 5 cents.
1) kernel, I don't think RHEL stock kernel will boot on an RPi4, seems too new, maybe start testing in older devices .
2) EFI, in theory, you could use uboot to load EFI, and uboot can be loaded from the rpi loader.
3) Image, yeap, you need the right arch to generate the image, but since you managed to load the guest in KVM, that should be solved.
Having said all this, I wouldn't do any of it and actually start testing everything in Fedora, where you know you have all the latest things. Once you have the right steps, go back to RHEL and test again.
HTH. Pablo.
