Backup kernel - confirmation

[Bryan Maynard]

On Thursday 28 July 2005 02:10 pm, Norberto Meijome wrote:
> quick question - I have a remote box with SMP/HTT disabled, but I'd
> like to see how it works with it. If I make a copy of my current
> kernel to /kernel_orig, I should be able to install the SMP one as
> /kernel, and if hell breaks lose, I should be able to point it to
> /kernel_orig ... right?

Yes, you can do that. Also of note is that when FreeBSD compiles a 
kernel it takes the old kernel and renames it kernel.old. When FreeBSD 
is booting you can select which kernel to use simpy by entering 
"boot /boot/kernel.old/kernel" or "boot /boot/kernel_orig/kernel". I 
did this when I was tweak the kernel in my laptop. Check the boot man 
page for more info.

> any caveats for this? ( I do off-band access to the server)

Booting using "boot /boot/kernel.old/kernel" runs as if you were booting 
using your current kernel. I ran my laptop all day on my old kernel and 
did't see any problems.

> thanks in advance,
> Beto

Thanks,

Bryan
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Open Source: by the people, for the people.