* Mark <[EMAIL PROTECTED]> [0719 11:19]:
> Dear people,
> I have been applying patches over time; and when I recompile the kernel (4.9R p4), 
> it keeps the old one around. My question is, though, is it safe to keep /kernel.old? 
> I always keep it around, in case the new kernel has a problem. And that always 
> seemed like a sensible policy to me. But what if one of the patches contains an 
> exploitable bug? I run in securelevel 2, so I am not sure whether users could 
> actually use the old kernel (once in multi-user mode). Still, I wonder if this 
> concern is valid at all. Or whether I should perhaps get rid of the old kernel.

What I generally do on all BSds is when I've been using the kernel happily for a week 
or two,
I 'cp /kernel /kernel.ok' - if you let /kernel.old get *too* old, you might find it 
won't boot
on a recent userland....

Don't go around saying the world owes you a living.  The world owes
you nothing.  It was here first.
                -- Mark Twain
Rasputin :: Jack of All Trades - Master of Nuns
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