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