Re: Kernel Upgrade?
On Sunday 30 January 2005 19:15, Pedro M (Morphix User) wrote:
> Steve Turnbull escribió:
> >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'?
>
> A lot of people, do it from time to time (it's very usual ) . I prefer
> a single step process (or command).
I am not familiar with a single command which updates the kernel? But, as you
say, a single command which would intelligently do all of the above would be
good.
Although I do like learning how to do things manually, and figure out all of
the in's and out's of the working system, this isn't for everybody.
Getting back to 'kernel update', is this a script/tool you know of?
Steve
>
> Regards.
--
Steve Turnbull
Digital Content Developer
YHGfL Foundation
e steve.turnbull@yhgfl.net
t +44 (0)1724 275030
w www.yhgfl.net
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