problem extracting and remaking iso file system

**covici** · 07-28-2003, 04:16 PM

Hi. I have a strange problem -- in previous versions of knppix, I extracted the compressed file system on the cd, made the kernel changes and then recompressed successfully. NOw if I just extract and then do a mkisofs -- after changing only two small files and the kernel, it comes out about 4 megs larger than before, and so it compresses much bigger.

Does anyone know what I am doing wrong.

I use mkisofs -r -o <filename> <place where I extracted the compressed system>

Also, I saw a post about a remastering howto -- where is this to be found?

Any assistance would be appreciated.

**arkaine23** · 07-28-2003, 08:48 PM

http://www.knoppix.net/docs/index.ph...masteringHowto

That's the guide I used.

**covici** · 07-29-2003, 05:06 AM

I found the howto useful, but the question still remains -- why if I just extract the files with NO changes and re make the iso file system -- why is it not the same size? I am running very close to the edge and this is important -- I am already burning 816mb according to cdrdao.

Originally Posted by arkaine23

http://www.knoppix.net/docs/index.php/KnoppixRemasteringHowto

That's the guide I used.

**arkaine23** · 07-30-2003, 02:47 AM

Are you using the mkisofs commands found in that how-to? If all you've done is extract and edit a couple of files, you should not be seeing an increase in size.

**MichielioZ** · 07-30-2003, 08:43 AM

I posted this on another thread too..
Did you unmount the proc-filesystem before remastering ??
If you don't, you'll end up with a (much) larger ISO...
Hope it helped.

**covici** · 07-30-2003, 12:20 PM

I think one thing which might help this problem is if we might know the exact parameters which were used to create the original iso for the compressed file system -- anyone can help with that?