Re: updating direct from 5 to 9?

[Martin Husemann <martin%duskware.de@localhost>]

On Tue, Aug 23, 2022 at 08:23:37AM -0400, Greg Troxel wrote:
> The failure appears to be the same for /sbin/ifconfig and
> /rescue/ifconfig, suggesting that the problem is that the kernel doesn't
> respond correctly to something, rather than shlib issues.

We do not always provide full binary compat for ioctls (we usually try, but
sometimes it gets tricky).

Off hand I am not sure if this instance is worth fixing (or what effort
it would take).

A simple way around it is (while still running the old kernel) to extract
the netbsd-9 rescue set, e.g. to /rescue-9 and then before rebooting
into the netbsd-9 kernel move /sbin/ifconfig to /sbin/ifconfig.old and
hard link /rescue-9/ifconfig to /sbin/ifconfig.

Martin