[wplug] I'm a Linux whimp (need kernel help)
Poyner, Brandon
bpoyner at ccac.edu
Mon Aug 15 10:03:31 EDT 2005
> You did bring up a good point, though -- it's a great (!) idea to
> enable /proc/config[.gz] while configuring your kernel. If you end up
> losing the configuration for a bootable kernel, you can still retrieve
> it later if needed. I believe that there's even a script to
> extract this
> information from a non-running kernel if you built it with
> /proc/config
> support.
RedHat thinks it's "stupid" [1] to put the config inside of the kernel,
and has it turned off by default. Their argument is that there is no
advantage over a file in /boot, and the disadvantage is increased memory
usage. Hah, RedHat against bloat? Yes, I use many RedHat products, but
I wouldn't say bloat is a big concern of theirs.
As for extracting the config from a non-running kernel, use
scripts/extract-ikconfig from the kernel source directory. This only
works if IKCONFIG was enabled, and /proc/config.gz only exists if
IKCONFIG_PROC was enabled.
[1] "its done this way because the other way is _stupid_" Dave Jones
<davej @ redhat . com>
Brandon Poyner
Network Engineer III
CCAC - College Office
412-237-3086
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