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upgrade_pc_engine_s_apu_bios_with_pxe
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PC Engines APU - update BIOS over PXE
Prerequisites
- Working PXE/tftp server.
- PC Engine's APU.
- Serial console.
Configuration
- On the PXE server, create a directory.
mkdir -p /tftpboot/bios
- Download the (latest) BIOS firmware: http://www.pcengines.ch/file/apu_tinycore.tar.bz2
- Extract in /tftpboot/bios.
- Copy syslinux.cfg to /tftpboot/pxelinux.cfg/default, and edit the file.
SERIAL 0 115200 CONSOLE 0 default tinyCore ALLOWOPTIONS 0 TIMEOUT 600 LABEL tinyCore MENU LABEL ^tinyCore KERNEL /bios/vmlinuz console=ttyS0,115200n8 append priority=low initrd=/bios/core.gz superuser noswap nodhcp embed nozswap blacklist=
Download BIOS image, flash BIOS
- Request IP-Address.
udhcpc -i eth0
- Download the BIOS firmware.
tftp -g -r /bios/apu140405.rom pxe.server.host
- Upgrade the firmware.
$ flashrom -w apu140405.rom flashrom v0.9.7-r1711-APU on Linux 3.8.13-tinycore (i686) flashrom is free software, get the source code at http://www.flashrom.org Using default programmer "internal". Calibrating delay loop... OK. coreboot table found at 0xdffdf000. Found chipset "AMD SB7x0/SB8x0/SB9x0". Enabling flash write... OK. Found Macronix flash chip "MX25L1605A/MX25L1606E" (2048 kB, SPI) at physical address 0xffe00000. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done.
- Reboot the APU.
reboot
upgrade_pc_engine_s_apu_bios_with_pxe.txt · Last modified: 2021/10/09 15:14 (external edit)
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