INTL 3:770/1 3:770/3   
   REPLYADDR pbyabmle@4wrd.cc   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  1c4cf98b   
   REPLY:  1aa8e034   
   PID: SoupGate-Win32 v1.05   
   On 1/5/2024 09:41, Theo wrote:   
   > Bryan  wrote:   
   >> On 1/5/2024 05:13, The Natural Philosopher wrote:   
   >>   > That's what my Pi 4 did on  one version of Bookworm.   
   >>   > Try a different version   
   >>   
   >>   
   >>   From what I understand, the Compute Module 4 cannot boot from SD card   
   >> because it's literally missing the connections to the card - the card   
   >> slot is only there so you can load the Pi OS onto the built-in eMMC.   
   >> It's designed to boot from eMMC. If I'd paid attention, I would have   
   >> picked up the 8GB eMMC version instead, but after waiting for a year I   
   >> took what I could get.   
   >   
   > You have it backwards: the Lite version has no eMMC which is why the   
   > official I/O board has an SD card socket to boot the Pi:   
   > "MicroSD card socket for Compute Module 4 Lite (without eMMC) variants"   
   > https://www.raspberrypi.com/products/compute-module-4-io-board/   
   >   
   > If you have a non-Lite board there's a way to flash the eMMC externally (via   
   > USB I think).  If there is onboard eMMC the SD slot is not connected to the   
   > Pi (or maybe to the second MMC channel, not sure).   
   >   
   >> If you put a card in, it doesn't do anything. As far as the eeprom, that   
   >> shouldn't be an issue past 2021 or so - I can see it trying to boot from   
   >> the flash stick, and I did try it without the modem as well.   
   >   
   > I wonder if there is something odd about the way they've wired the SD slot   
   > on your board?  Maybe it needs a jumper or something?  What does the   
   > documentation for your board say?   
   >   
   >> The version of (official) OS is the only thing I did not try, if I have   
   >> time I'll download the second-to-last version and try it this weekend. I   
   >> did try the Armbian version, but I don't know that it specifically   
   >> states CM4 compatibility.   
   >   
   > There can sometimes be firmware issues that means third party OSes won't   
   > boot on new variants of the same board like CM4 because of minor hardware   
   > differences, but these are usually ironed out fairly soon after release.   
   >   
   > Theo   
   >   
      
      
      
      
   Ok, I do see the lite version SHOULD boot from uSD, so perhaps this is a   
   problem with the actual OS version as well. There's also this little bit   
   of info with some changes to config.txt:   
      
   https://www.waveshare.com/wiki/Wrote_Image_for_Compute_Module_Bo   
   rds_Lite_version   
      
   which I'll try.   
      
      
   I don't have a lot of information on the carrier itself, that seems to   
   be somewhat lacking. Maybe the carrier is bad, being a Super High   
   Quality Much Goodly Chinese device, who knows? There are reviews of it   
   out there, but no real hard information. I'll dig into that as well.   
      
   The local Micro Center has a cheap carrier in stock of a different   
   style, so I'm going to pick up one of those this weekend and give that a   
   try as well, but I'll grab an older OS first to see how that goes.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)   
   SEEN-BY: 1/19 15/0 16/0 19/10 37 80/1 90/1 105/81 106/201 123/130   
   SEEN-BY: 128/260 129/305 135/225 142/104 153/757 7715 203/0 218/700   
   SEEN-BY: 218/840 220/70 221/1 6 242 360 226/17 30 100 227/114 229/110   
   SEEN-BY: 229/112 113 200 206 307 317 400 426 428 452 470 550 616 664   
   SEEN-BY: 229/700 230/0 240/5832 266/512 267/800 280/5003 282/1038   
   SEEN-BY: 291/111 292/854 301/1 310/31 320/119 219 319 2119 322/0 757   
   SEEN-BY: 325/304 335/364 341/66 342/200 396/45 423/81 460/58 633/280   
   SEEN-BY: 712/848 770/1 3 100 330 340 772/210 220 230 5020/400 5053/58   
   SEEN-BY: 5058/104 5075/35   
   PATH: 770/3 1 218/840 221/6 1 320/219 229/426