Re: RPI 4 not find the disk to boot from

Hi Ludovic,

on your sdcard look for /boot/efi/config.txt file and check if dtoverlay=mmc is enabled.

If yes you could try to disable / comment it.


Best regards,

Michael


> On 4. Mar 2025, at 12:13, Ludovic Hirlimann <ludovic@hirlimann.net> wrote:
> 
> Hello all,
> 
> I'm trying to install FreeBSD 14.2 on a newly acquired rpi4 with 4GB RAM. I have used the aarch64 RPI image and rpi imager to create the SD card. FreeBSD boots but doesn't complete the boot process:
> 
> I get the following :
> sdhci_bmc1-slot0: Controller Timeout
> sdhci_bmc1-slot0: ============== REGISTER DUMP ===============
> sdhci_bmc1-slot0: Sys addr: 0x00000000c8 | Version: 0x00001002
> sdhci_bmc1-slot0: Blk size: 0x0000000200 | Blk cnt: 0x00000001
> sdhci_bmc1-slot0: Argument: 0x0ee2afff | Trn mode:0x00000012
> sdhci_bmc1-slot0: Present: 0x1fff0a06 | Host ctl:0x00000007
> sdhci_bmc1-slot0: Power: 0x000000000f | Blk gap: 0x00000080
> sdhci_bmc1-slot0: Wake-up: 0x0000000000 | Clock: 0x00000107
> sdhci_bmc1-slot0: Timeout: 0x0000000003 | Int stat:0x00000000
> sdhci_bmc1-slot0: Int enab: 0x01ff003b | Sig enab:0x01ff0009
> sdhci_bmc1-slot0: AC12 err: 0x0000000000 | Host cltl2:0x00000000
> sdhci_bmc1-slot0: Caps: 0x45ee6432 | Caps2: 0x0000a525
> sdhci_bmc1-slot0: Max curr: 0x0000000008 | ADMA err:0x00000000
> sdhci_bmc1-slot0: ADMA addr:0x0000000000 | Slot int:0x00000000
> sdhci_bmc1-slot0: ============================================ 
> mmcsd0: Errorindicated 1 Timeout
> 
> It then goes on telling me that he can't mount and gives me to options to mount either ufs or zfz. None work.
> I've tried with two different microSDcards. Both were able to boot Fedora arm images.
> 
> Any idea on what I could do to finish the boot process? Am I providng enough information for this email to be useful?
> 
> Ludo
> -- 
> https://ludovic.hirlimann.net
> https://piaille.fr/@usul
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