To clarify, I build 9pi locally from the latest version of sources. On Thu, Jan 14, 2021, 5:15 PM Skip Tavakkolian wrote: > I'm using a RPi400 with Richard's port. I'm netbooting without issues and > up for days. The only issue I had was forgetting to set 'enable_gic=1' as > Richard instructed in the sources. Pi4 works ok without it, pi400 doesn't. > > > On Thu, Jan 14, 2021, 3:39 PM Mack Wallace wrote: > >> Thank you for the reply Stuart, but no luck. >> >> I did download Mr. Miller’s image. It would not boot at all until I >> replaced the files that you mention, but the kernel in that image locks up >> after detecting the fourth core of the CPU. However, from that failure I >> learned that those files, (start_cd.elf, start4cd.elf, fixup_cd.dat, >> fixup4cd.dat) are necessary for the Pi to boot, and that those with the >> bootcode.bin and presumably, but it doesn’t seem to matter whether I use >> bcm2711-rpi-4-b.dtb or bcm2711-rpi-400.dtb - the dtbs are vital to the >> process. - and that all those files simply need to be copied into the fat >> partition/boot directory. >> >> So I burned another image (actually many, trying different SD cards, and >> different configurations, older kernels, etc) and replaced all the files >> I’ve mentioned with the ones from >> https://github.com/raspberrypi/firmware/tree/master/boot (hopefully >> that’s where I should get them). My most recent iteration just has the >> single error repeated: >> >> sdhc: read error intr 2008002 stat 1fff0000 >> >> This occurs many times. In the middle of these errors is >> >> /dev/sdM0: BCM SD Host Controller 02 Version 10 >> >> then the error repeats itself over 50 times before printing out the lines >> /dev/sdM0/data >> bootargs is (tcp, tls, il, local!device)[] >> >> At no time during this process is the keyboard or mouse responsive. >> Though the mouse icon did become visible during the boot process. >> >> I am hoping I am wrong, but I am thinking there is some sort of driver >> issue. At the very least, checking what media there is to mount, or reading >> the SD card. And then possibly for other things, but the former could be >> gumming up the works for everything else. >> >> On Jan 14, 2021, at 6:05 PM, Stuart Morrow >> wrote: >> >> Try copying the .dtb *and* the start4 and fixup4. >> >> *9fans * / 9fans / see discussions >> + participants >> + delivery options >> Permalink >> ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T0178132f3d2ed689-M1e4e003d008a726d01e49d4a Delivery options: https://9fans.topicbox.com/groups/9fans/subscription