Re: Exec format error from armv7 snapshot on RPi2

On May 31, 2025, at 13:43, bob prohaska <fbsd@www.zefox.net> wrote:

> Just downloaded 
> FreeBSD-15.0-CURRENT-arm-armv7-GENERICSD-20250522-30fd79b0c0a3-277396.img,
> wrote it to a microSD card and tried to boot an older (so armv7) Raspberry
> Pi 2.
> 
> It boots hands off, but complains about "exec format error" on some but
> not all commands. The first occurrence was during boot -s:
> ...
> ...
> umass0 on uhub2
> umass0: <JMicron SABRENT, class 0/0, rev 2.10/12.14, addr 6> on usbus0
> umass0:  SCSI over Bulk-Only; quirks = 0x0
> umass0:0:0: Attached to scbus0
> 
> -sh: /usr/bin/resizewin: Exec format error
> root@:/ # da0 at umass-sim0 bus 0 scbus0 target 0 lun 0
> da0: <SABRENT  1214> Fixed Direct Access SPC-4 SCSI device
> da0: Serial Number 000000000000A
> ...
> ...
> 
> Many more appear during boot to multi-user. Nonetheless,
> it puts a login prompt on the serial console. 
> 
> Attempt to log in look like:
> 
> login: root
> pid 664 (login), jid 0, uid 0: exited on signal 11 (core dumped)
> 
> FreeBSD/arm (generic) (ttyu0)
> 
> login: 
> 
> Any insights appreciated. I understand armv7 is on its last legs,
> but was hoping not yet.

If you can get to the point of doing such, what does:

# file /usr/bin/resizewin

report?

Example that is not from that .img file:

# file /usr/bin/resizewin
/usr/bin/resizewin: ELF 32-bit LSB executable, ARM, EABI5 version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, FreeBSD-style, for FreeBSD 15.0 (1500043), stripped
# /mnt/usr/bin/resizewin

A less direct possibility here is to boot an aarch64 system (that also
supports armv7 in user space) and to mount media on that system, say
to /mnt/ , then try:

# file /mnt/usr/bin/resizewin
# /mnt/usr/bin/resizewin

Also of interest might be:

# chroot /mnt/
# file /usr/bin/resizewin
# /mnt/usr/bin/resizewin
# exit

My use of mdconfig with the .img file did not show any problems
with the analogous /mnt/ use. (Windows Dev Kit 2023 used.)

If the aarch64 based context works in your context, it suggests
a kernel problem for the armv7 kernel, not a world problem.

===
Mark Millard
marklmi at yahoo.com