Loader prompt

[balanga]

If booting up from u-Boot and get as far as the FreeBSD loader prompt, I get a

can't load 'kernel'

msg follwed by a
loader> prompt

How do I tell what file it is looking for and where it is looking for it?

And where can I find examples of using the available commands at the loader> prompt?
In particular how can I list files (using ls) which are on a usb stick?
lsdev shows
disk devices:
disk0 (USB)
disk0s1: DOS/Windows
disk0s2: FreeBSD
disk0: read failed, error=2
net devices:
net0:

 

[Phishfry]

It is looking for the designated / drive to find and load the kernel.. This is usually pointed to by fstab.

 

[ShelLuser]

Basically you'd need to define the same values as you have defined in /boot/loader.conf (the right values of course).

A good way to find out what parameters you need is by using the show command. It's a long read but it will have the configured information in there.

From the top of my head (so: not 100% sure) you need to set the currdev variable for this. And the menu already gave you the correct value:

OK> set currdev="disk0s2"
OK> set vfs.root.mountfrom="ufs:/dev/ada0s2a "

Followed by boot.

I grabbed the last value from Phishfry's example above, I obviously don't know if it's valid, (edit): but my guess is that you're using an MBR system.

 

[nero]

is it at all possible to use the boot prompt to boot of a USB thumb drive?

T

 

[astyle]

is it at all possible to use the boot prompt to boot of a USB thumb drive?

T

I would think so...

OK> set currdev="disk0s2"
OK> set vfs.root.mountfrom="ufs:/dev/ada0s2a "

Followed by boot.

lsdev shows
disk devices:
disk0 (USB)

Well, OP was saying this, though:

disk0: read failed, error=2

So you can try, but no promises.