Re: Can't boot NetBSD from SDcard via UEFI on Raspberry Pi 5 (8GB D0) - sdmmc1: couldn’t enable card: 60

[Greg Troxel <gdt%lexort.com@localhost>]

Tim McIntosh <tmcintos%eskimo.com@localhost> writes:

>> On Jan 2, 2026, at 2:12 AM, Nick Hudson <nick.hudson%gmx.co.uk@localhost> wrote:

>> USB or NVME (via hat) storage is best for root anway.
>
> Good to know. I wish I had known this before I spent money on the SD
> card and official case. I was hoping to avoid external storage or
> using a HAT since it won’t fit in the case with fan + lid
> <https://forums.raspberrypi.com/viewtopic.php?t=370927>. I could try
> using a USB SD card adapter if that is expected to work.
>
> Perhaps someone with access could update the wiki page so that others
> aren’t misled into spending time/money on something that’s not
> expected to work? The current page gives the strong impression that
> using an SD card is the preferred approach and should be expected to
> work.

Nick said "best", not "using an SD card will fail after 24h".  Lots of
people use uSD cards on NetBSD RPI.  I am doing so on 2x RPI3 and a
RPI4, although two of them have a USB SSD for the parts that are written
often.

As I understand it, the problem is not that uSD doesn't work, but that
such cards have lower longevity than SSDs.  They are also slower.
all bs=128k

RPI4 
  ld1 214433792 bytes transferred in 11.430 secs (18760611 bytes/sec)
  sd0 918421504 bytes transferred in 5.700 secs (161126579 bytes/sec) (Samsung T7)


If your goal is to have a machine with a case and not much else, and you
want to use a uSD, that's an ok thing to do in my view.  It really
depends on if you want a RPI or if you are trying to turn a RPI into a
real computer.


How about you try it, and report back?