On Fri, May 22, 2015 at 11:29:40PM +0100, Mick wrote
> On Friday 22 May 2015 23:13:06 Neil Bothwick wrote:
> >
> > make install does it exactly the way you are doing it, but faster and
> > less prone to error.
>
> Hmm ... I may have used it the wrong way quite a few years ago, but
> it would only keep two kernels at a time or something like that.
> That made me carry on copying kernel files into boot manually.
> In this way at least I know where I put them and what options I pass
> on to them.
I've automated that process. I have 2 kernels, "experimental" and
"production". I use 2 scripts "makeover" and "promote". When I first
build a new kernel, I run the the "makeover" script, which does make and
overwrites the previous experimental kernel. Note that this script
*MUST* be executed from the /usr/src/linux/ directory.
#!/bin/bash
make && \
make modules_install && \
cp arch/x86_64/boot/bzImage /boot/kernel.experimental && \
cp System.map /boot/System.map.experimental && \
cp .config /boot/config.experimental && \
lilo
When the "experimental" kernel has been running OK for a couple of
weeks, I promote it to "production" with the "promote" script...
#!/bin/bash
cp /boot/System.map.experimental /boot/System.map.production
cp /boot/config.experimental /boot/config.production
cp /boot/kernel.experimental /boot/kernel.production
lilo
This hooks into my /etc/lilo.conf menu, shown here with comment lines
removed...
###########################################
lba32
boot = /dev/sda
map = /boot/.map
install = /boot/boot-menu.b
menu-scheme=Wb
prompt
timeout=150
delay = 50
image = /boot/kernel.production
root = /dev/sda5
label = Production
read-only # read-only for checking
append = "noexec=on net.ifnames=0"
image = /boot/kernel.experimental
root = /dev/sda5
label = Experimental
read-only # read-only for checking
append = "noexec=on net.ifnames=0"
###########################################
This has saved me on occasion, allowing me to fall back to a working
"production" kernel when things go badly with "experimental". I then
run my "demote" script.
#!/bin/bash
cp /boot/System.map.production /boot/System.map.experimental
cp /boot/config.production /boot/config.experimental
cp /boot/kernel.production /boot/kernel.experimental
lilo
I also have my kernels set up so that I can...
zcat /proc/config.gz > /usr/src/linux/.config
...to retrieve a known working .config file from the currently running
kernel. This puts me back to square 1 with the experimental kernel.
--
Walter Dnes <[email protected]>
I don't run "desktop environments"; I run useful applications
