Extra installation

Extra installation

[Colin Harris]

Hi all,
         New to this list. Could someone outline the
possibilities please. Problem as below :-

I have a 17Gb HDD. First 5 GB dedicated to Redhat 6.1 and
runs an ax25 system for a DX cluster and ax25 node system.

Want to try Redhat 7.2 - Tried a second install by creating
a new 5GB partition. First time it did install, subsequent
times it stops after 400 mb.    However , the plan was to
install this later version and run it from the existing
Lilo. After ( successfully) installing 7.2 and running from
a floppy , shut down 7.2 , booted 6.1 to include info into
lilo.conf , run lilo but of course it cannot find files on
an unmounted system (7.2).

Questions are :- How to run a second version selectable from
Lilo ? and are there still problems with installing between
5 and 10 GB down a hdd ?. I thought this 1023 cylinder thing
had been overcome long ago.

- Regards Colin

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Re: Extra installation

[pa3gcu]

On Sunday 11 August 2002 05:14, Colin Harris wrote:
> Hi all,
>          New to this list. Could someone outline the
> possibilities please. Problem as below :-
>
> I have a 17Gb HDD. First 5 GB dedicated to Redhat 6.1 and
> runs an ax25 system for a DX cluster and ax25 node system.
>
> Want to try Redhat 7.2 - Tried a second install by creating
> a new 5GB partition. First time it did install, subsequent
> times it stops after 400 mb.    However , the plan was to
> install this later version and run it from the existing
> Lilo. After ( successfully) installing 7.2 and running from
> a floppy , shut down 7.2 , booted 6.1 to include info into
> lilo.conf , run lilo but of course it cannot find files on
> an unmounted system (7.2).

You would need to mount the partition first before running lilo.
Depending on how you plan to configure lilo of course.
There are many ways of achiving what you want, i will explain how i do it.

>
> Questions are :- How to run a second version selectable from
> Lilo ? and are there still problems with installing between
> 5 and 10 GB down a hdd ?. I thought this 1023 cylinder thing
> had been overcome long ago.

You describe adding the new 7.2 system into the old 6.2 lilo, i would advise 
against doing that as newer versions of lilo have less problems with just 
about everything, including the 1023 limit as you point out, i dont know what 
limitations the version has included in 6.2.

I would place both systems under the latest version of lilo, that we can do 
as follows.

Boot into 7.2 with your floppy.
login as root
mount the 6.2 root partition into /mnt
mount -t ext2 /dev/hdxx /mnt
cp /mnt/boot/boot_image /boot/vmlinuz-red-6.2
cp /mnt/boot/System.map /boot/System.map-red-6.2
umount /mnt
edit /etc/lilo.conf
Add a new section for the old 6.2 install.
run lilo with the -t option to check if things are ok.
If all is ok run lilo again to install the new configuration.
reboot now you can choose which system you want.

If you need an example take a look at;

http://people.zeelandnet.nl/pa3gcu/lilo.htm

>
> - Regards Colin

-- 
Regards Richard
pa3gcu@zeelandnet.nl
http://people.zeelandnet.nl/pa3gcu/

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Re: Extra installation

[Riley Williams]

Hi Colin.

> New to this list. Could someone outline the possibilities please.
> Problem as below :-
>
> I have a 17Gb HDD. First 5 GB dedicated to Redhat 6.1 and runs an
> ax25 system for a DX cluster and ax25 node system.
>
> Want to try Redhat 7.2 - Tried a second install by creating a new
> 5GB partition. First time it did install, subsequent times it stops
> after 400 mb.  However , the plan was to install this later version
> and run it from the existing Lilo. After ( successfully) installing
> 7.2 and running from a floppy , shut down 7.2 , booted 6.1 to
> include info into lilo.conf , run lilo but of course it cannot find
> files on an unmounted system (7.2).
>
> Questions are :- How to run a second version selectable from Lilo ?
> and are there still problems with installing between 5 and 10 GB
> down a hdd ?. I thought this 1023 cylinder thing had been overcome
> long ago.

The obvious solution would be to temporarily mount your 7.2 partition as
/mnt within your 6.1 partition, but you also need to ensure that each
entry gets a separate root= parameter. That would give you a lilo.conf
something like the following:

===============8<=============== CUT ===============>8===============

boot		= /dev/hda
compact
delay		= 50
install 	= /boot/boot.b
map		= /boot/map
prompt
ramdisk 	= 16384
read-only
timeout 	= 50
vga		= 1

password	= NotLikely
restricted

default 	= 6.1

image=/boot/vmlinuz
	label	= 6.1
	root	= /dev/hda1

image=/mnt/boot/vmlinuz
	label	= 7.2
	root	= /dev/hda2

===============8<=============== CUT ===============>8===============

Change the password= line to whatever you prefer (and no, that isn't
mine), and also change the root= lines to suit, then mount your 7.2
partition wherever and run lilo to deal with the results.

Best wishes from Riley.

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Re: Extra installation

[Colin Harris]

Hi Riley and Richard,

I guess I was thinking along the right lines when I mounted
the 7.2 version whilst running the 6.1 version except that I
probably didn't mount it correctly because it didn't show up
in the /mnt directory. I'd like to down all of it and
restart ( to include a dos partition as first partition )
but this is now impractical. I'll try again to get 7.2 to
re-install and if it complies , then armed with both your
suggestions ( for which I thank you ) perhaps this time I'll
succeed.

Luckily ( for other reasons ) this cluster box is off line
and I have complete backups for both ax25 and cluster
softwares so I *could* completely re-install the current
stuff if necessary.

- Regards Colin


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