Oh dear, I don't have good news. I installed the kernel on my RockPro64 with the steps mentioned by Matthew, it booted normally without the testparam from the report.
I added the testparam in grub testparam=f081c381e7b54edcba27e5f790d47911a4cc3e726d8d256878d3df9175c020e0f081c381e7b54edcba27e5f790d47911a4cc3e726d8d256878d3df9175c020e0f081c381e7b5 And it still fails to boot. UART console log below - Booting a command list Loading Linux 6.8.0-39-generic ... Loading initial ramdisk ... EFI stub: Booting Linux Kernel... EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path EFI stub: Using DTB from configuration table EFI stub: Exiting boot services... Just hangs there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069534 Title: linux 6.8 fails to boot on arm64 if any param is more than 140 chars To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2069534/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs