Re: Kernel Upgrade?
From: Steve Turnbull (steve.turnbull_at_yhgfl.net)
Date: 01/30/05
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To: debian-user@lists.debian.org Date: Sun, 30 Jan 2005 18:03:38 +0000
On Sunday 30 January 2005 18:57, Pedro M (Morphix User) wrote:
> Steve Turnbull escribió:
> >On Sunday 30 January 2005 16:18, Max wrote:
> >>Dear All,
> >>
> >>Is it possible to change the Linux kernel in a Debian installation
> >> without having to do a complete reinstall?
> >
> >You can easily upgrade the kernel without reinstalling the whole operating
> >system - a very common thing to do. I don't know what version of Debian
> > you are using, but if you do;
> >
> >apt-get update
> >apt-cache search kernel-source
> >
> >you will get a list of 'debian-ified' kernels. Choose which one you want
> > (if your after functionality go for a 2.6.x...) and do
> >
> >apt-get install kernel-source-2.6.xx
> >
> >This will install the kernel SOURCE into /usr/src
> >
> >Install 'quick steps' (as root), make sure you have mkinitrd tools
> > installed, and if you want to use your Knoppix config, find it and put it
> > in /tmp. I would suggest you don't use this as it compiles modules for
> > all sorts you probably don't need. A better solution would be to use the
> > config when you first installed Debian, which is in /boot/config-x.xx.xx.
> > Also, this assumes a 2.6 kernel;
> >
> >cd /usr/src
> >tar xjvf kernel-source-2.6.xx
> >ln -s kernel-source-2.6.xx linux
> >cd linux
> >
> >make mrproper
> >cp /boot/config-2.xx.xx .config (or your knoppix one?)
> >make menuconfig (add/delete modules etc then save & exit)
> >make
> >make modules_install
> >cd /boot
> >cp /usr/src/linux/arch/i386/boot/bzImage linuz-2.6.xx
> >cp /usr/src/linuz/System.map System.map-2.6.xx
> >
> >The 'make modules_install' will place your modules into
> > /lib/modules/2.6.xx
> >
> >mkinitrd -o initrd.img-2.6.xx 2.6.xx
> >
> >Note the space before the last '2.6.xx'. This is looking at
> >the /lib/modules/2.6.xx dir created earlier
> >
> >
> >Next you need to update your boot manager (I only know grub - if using
> > lilo then maybe someone else can help)
> >
> >edit /boot/grub/menu.lst and add the required fields, something similar to
> >this, but every setup maybe different, read up on grub if required;
> >
> >title Debian GNU/Linux, kernel 2.6.xx
> >root (hd0,1)
> >kernel /boot/vmlinuz-2.6.xx root=/dev/hda2 ro
> >initrd /boot/initrd.img-2.6.xx
> >savedefault
> >boot
> >
> >
> >Good look
> >Steve
> >
> >>I have e version ok Knoppix to hand so I'm feeling quite brave. I read a
> >>vague report that the kernel is just an ordinary file in some specific
> >>location, and it's possible to copy the old kernel to a backup directory
> >>for safe keeping, put a new kernel in said specific location, reboot and
> >>presto!
> >>
> >>Finally, is there anything I should be aware of before changing the
> >>kernel? The only reason prompting me to change the kernel is that I have
> >>a bit of software the documentation of which states that the kernel
> >> should be v2.4 or later. For instance, does a change in kernel usually
> >> go hand in hand with changing some other part of a system?
> >>
> >>Regards,
> >>--
> >>Muggles
>
> A lot of commands. Kernel update is so usual, that would be only a
> single command to do it.
I just mentioned a good way of compiling a kernel, step by step. How do you
mean 'Kernel update is so usual'?
Steve
>
> Regards.
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