Getting started with LinuxBoot Firmware on AArch64 Server
summary
Boots CentOS 8.2 AArch64 from LinuxBoot flashrom in QEMU on x86_64 by building a single 15 MB uncompressed kernel with u-root initramfs, patching OVMF to 32 MB by changing 512→8192 blocks (OVMF 32MB patch 512->8192), extending the image to 64 MB with dd, and injecting the PE/COFF via Fiano's utk replace_pe32 (Fiano utk replace_pe32). Uses QEMU -s -S plus GDB on port 1234 for debugging; main blocker is AArch64 kernel decompression absent in UEFI loaders.
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chapters (13)
- 0:00LinuxBoot on AArch64 intro
- 1:04Market trends for LinuxBoot
- 2:45What LinuxBoot means
- 4:28Missing BDS kernel patch
- 6:15Fiano replaces UEFI Shell
- 7:30Flashrom size challenges
- 9:11Extend OVMF to 32MB
- 10:42Configure LinuxBoot kernel
- 13:00Inject LinuxBoot into QEMU
- 14:11Boot CentOS 8.2 locally
- 15:28Debug LinuxBoot with GDB
- 16:14Future kernel decompression
- 18:10Summary and resources
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