Is it possible to install Slackware on an extended partition?

For example.

60 GB Harddrive partition Scheme.

hda1 swap 1 GB
hda2 /boot 50 MB
hda3 / 1 GB
hda4 --- extended ----
hda5 /home 4 GB
hda6 /opt 3 GB
hda7 /tmp 1 GB
hda8 /usr 15 GB
hda9 /var 4 GB
hda10 /Slackware with the rest (30+ GB)

Reason I ask? Trying to install a dual boot system

Linux From Scratch / Slackware

yes it is!

gl

Great.

Next question:

Since I have no internet access on that computer I will first install Slackware. To install LFS using Slackware as a host OS, I will to be able to mount the remaing partitions from Slackware. I have installed Slackware several times and could do it in my sleep but installing Slack before a second OS is new for me.

Should I mount those remaining partitions

hda1 swap 1 GB
hda2 /boot 50 MB
hda3 / 1 GB
hda4 --- extended ----
hda5 /home 4 GB
hda6 /opt 3 GB
hda7 /tmp 1 GB
hda8 /usr 15 GB
hda9 /var 4 GB

during the Slackware install to be able to mount them from Slack for the LFS install or will that make Slackware install to those partitions during the Slack installation?

i've never tried LFS, but if i understand the concept from what you are suggesting, my guess would be first install slackware on its own partition so all the root subdirectories stay there, and then make your partitions for LFS afterward (or make them during slack setup, but leave them alone, don't assign directories to them, etc). but as i said, i've never done LFS, so you might want to take that with a grain of salt.

during install, you should only mount the partitions that you want to install to.
when Slack is running, you can mount any partition you want.

but you're using 1 partition for Slack and 6 fo LFS.
is that needed for LFS ?

egag

No.

The minimum needed is...

One for Slack.
One for LFS.
And they can share the swap.

but I definetly want to them to each have a partition that won't be reformatted if I need or want to reinstall them in the future, i.e. a home partition.

I'm trying to figure a safe partitioning scheme that allows that.

something like

hda1 (LFS Root)
hda2 (LFS Home)
hda3 (Shared Swap)
hda 4 ---extended---
hda 5 (Slackware Root)
hda 6 (Slackware Home)

That's what I will Probably do.

That's as simple as I can figure it

Here's the catch Slack uses Lilo as default
LFS uses Grub as default


Hmmmmmmm....

I'm working things out as I go.

I'm worried about the boot loaders.

I may just boot slack from a floppy till I get grub straight.

it's ok to just install lilo to boot both.
when you install LFS, you don't install a bootloader.

instead boot Slack, mount the partition where the LFS kernelimage is,
and add a linuxsection for LFS in your lilo.conf
containing smth like
-----
image=<mountpoint-of-LFS-partition>/boot/LFS-kernel
root=/dev/hdxx ( the LFS / partition )
label="LFS"
read only
------

after that run "lilo" and check if the output gives no errors.
if all is ok, you have a dualbooting system.

egag