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Booting arguments for NetBSD under qemu
For good reasons (a course I give at KTH) I need to boot NetBSD sparc32
Recent NetBSD sparc32 releases do not cooperate well with qemu.
Therefore I use 5.2. I do not depend on the latest and greatest release
for the present use.
Installation goes like a charm, using this (slightly shortened) command:
qemu-system-sparc -m 256 -hda disk.img -cdrom sparccd-5.2.2.iso \
-boot d -nographic
qemu-system-sparc -m 256 -hda disk.img -nographic
would boot the installed system, but alas, it does not.
Instead, an explicit kernel argument is needed as in,
qemu-system-sparc -m 256 -hda disk.img -kernel netbsd-GENERIC
where NetBSD-5.2.2/sparc/binary/kernel/netbsd-GENERIC.gz was used for
the kernel argument.
Unfortunately, this kernel asks for root device, dump device, and a few
more things. This makes automated booting hard.
I have tried hard to find how to pass suitable arguments to the kernel
from qemu, but have not come very far.
Specifically, I have not been able to find documentation of the possible
command line argument of netbsd-GENERIC. I have not found the place in
the kernel sources where kernel command line arguments are handled.
Please help with some advice.
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