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Latest OS update causes boot loop
Posted: Sun Oct 31, 2021 6:06 pm
by KD8DVR
I updated all 5 of my pi zero hotspots today, using pistar-update. Upon rebooting, the pi's just looped....by looking at the light on the pi. Never completed booting. Just would continually restart.
I have to restore images from backup. Fatal errors.
Any ideas why?
Thanks.
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Re: Latest OS update causes boot loop
Posted: Mon Nov 01, 2021 12:16 am
by KD8DVR
Oddly enough, when I pulled the plug, instead of doing a proper reboot, the pi's rebooted properly. Strange. At any rate, issue resolved.
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Re: Latest OS update causes boot loop
Posted: Mon Nov 01, 2021 10:26 pm
by KD8DVR
Yeah. I know. Strange...
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Re: Latest OS update causes boot loop
Posted: Tue Nov 02, 2021 8:58 am
by KD8DVR
KE7FNS wrote:KD8DVR wrote: ↑Mon Nov 01, 2021 10:26 pm
Yeah. I know. Strange...
Were you looking at a monitor and seeing fatal errors, or just looking at the LED blink assuming it was bootlooping??
Cause the LED flashes X number of times to indicate a failure to load the different firmware files for the different chips during the boot sequence, but a fatal error AKA kernel panic would be beyond the firmware booting process, and would indicate a problem with the kernel or some hardware failure the board itself.
Code: Select all
* 2 flashes: Error reading SD card.
* 3 flashes: start.elf not found
* 4 flashes: start.elf not launch-able (corrupted)
* 7 flashes: kernel.img not found
* 8 flashes: SDRAM not recognized. You need newer bootcode.bin/start.elf firmware, or your SDRAM is damaged
I was looking at the leds. Looked like it tried to boot....but it could very well have been sending error codes.
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