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Re: Initrd overlay for gentoo.igz: msg#00116

Subject: Re: Initrd overlay for gentoo.igz
Hi Eliot,

there are serveral Knoppix remaster (google:"knoppix remaster") Howto's out there, you may have a look at them, but I cannot guarantee for it. One difference: LiveCD's usually use squashfs while Knoppix uses cloop.

Greetings,

Georg

Eliot Gable wrote:
Well, I assume you are talking about the catalyst build? I am trying to stay
away from the catalyst utilities. I do not want to build a whole new livecd
image. I just want to use the x86 minimal livecd image I downloaded. I do
not see any livecd-stage2.spec file on that CD. I am not at all familiar
with catalyst and I was not planning on spending the time learning it. I
thought this would be a relatively simple task -- just unpacking the files
on the CD, adding a couple in, and repackaging them. Can I not do it this
way?

On 9/27/05, Georg Lippold <georg.lippold-Mmb7MZpHnFY@xxxxxxxxxxxxxxxx> wrote:

Hi Eliot,

just use

livecd/root_overlay: /path

in your livecd-stage2.spec

In /path, there is this structure


find . -print

./etc
./etc/init.d
./etc/init.d/somescript

The whole gentoo.igz is just the kernel ramdisk, that is discarded after
the filesystem from the CD is mounted. Your other modified files can go
into that directory, too. They are copied over stage2 before it gets
compressed.

Greetings,

Georg

Eliot Gable wrote:

I am new to the whole "live cd" thing, so please bear with me here.

I am trying to add a file to the /etc/init.d/ directory that exists

*after*

the entire Gentoo live cd boots up. I have figured out that the

/etc/init.d

directory in the ISO image on the CD is a base environment of some

sorts,

and that the gentoo.igz file in the isolinux directory on the CD

contains

the real set of files that exist in the /etc/init.d directory once the
entire CD finishes booting. I have created a folder to hold my overlay
files. This folder looks like so:


Now, I try to create an overlay like so:

find . -print | cpio --quiet -o -H newc | gzip -9 > ../gentoo.igz.new
cd ..
cat gentoo.igz.old gentoo.igz.new > gentoo.igz
cp gentoo.igz newcd/isolinux/
cd newcd
mkisofs -o ../gentoo.iso -b isolinux/isolinux.bin -c isolinux/boot.cat
-no-emul-boot -boot-load-size 4 -iso-level 2 -boot-info-table .
cdrecord -blank=fast dev=/dev/hdc ../gentoo.iso

The thing is, the resultant CD will boot just fine. However, the file

does

not show up in the /etc/init.d/ directory after the CD finishes booting


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