Jarod Wilson wrote:
[...]
A drawback is that the NIC's driver has to be in the kernel for ip=dhcp
to work. I presume the same applies for this.
Yes, as I understand it, the NIC driver has to be up and running for
netconsole to work (netconsole relies on a polling mode feature that has to
be implemented in each NIC driver), so to make this doable, we'd have to turn
on the in-kernel dhcp server and build all netconsole-capable NIC drivers
into the kernel. I'm guessing chances are slim that'll happen, but I'm not
guessing in any official capacity. :)
I'd be fairly surprised to find ne2000, tulip and such, but (given the
amount of RAM commonly available these days) it might not be so silly to
build, for example, support for Gbit NICs, or for NICs commonly found
built into recent mobos.
I've reread the documentation; it doesn't say that it does what I'd like
it to do (I don't like manually specifying IP addresses).
netconsole does work as a module, so if I get it all into an initrd it
should work, provided the kernel's dhcp _client_ it available it could
work as I'd like.
It won't get everything, but it might log up the problem I have with the
kernel not finding my disks.
Back to Ahmed, should it not be possible to construct a procedure that
activates his network and allows remote login, even when his disk needs
a good fsck?
It might need some manual intervention "plug the cable with the red tag
into the switch on the desk" for security, but this requirement is one
that comes up from time to time.
With a bit more effort, probably the initrd could be made to allow
remote access.
nash will need a good talking to, he wouldn't want the initrd's
filesystem to be cleaned out before switchroot
--
Cheers
John
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