> > I am using FreeBSD 4.0 and have two questions on kernel debugging: > > (1) Can I specify /usr/src/sys/compile/MYKERN/kernel.debug as the kernel > to boot from manually without copying that file under /? It seems I can > not do so. I guess the reason is that the /usr is not mounted at that > time.
Yes, although it's not particularly simple and will cause applications that use libkvm to become quite confused. For example, if your /usr filesystem is on wd0s1e, you can say load disk0s1e:/src/sys/compile/MYKERN/kernel.debug inside the loader (you may need to say 'unload' first to remove the default kernel). This will leave the kern.bootfile sysctl saying "/src/sys/compile/MYKERN/kernel.debug" and thus any application trying to read the kernel symbol table will fail. You can hack around this by placing a suitable symlink in /. -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msm...@freebsd.org \\ -- Joseph Merrick \\ msm...@cdrom.com To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
