I think I got the basics of remastering grml down OK: I copy the contents of the squashfs to a writable folder, chroot into it, do whatever I have to do, leave, recompress the image copy it back and rebuild the ISO image. Works well enough.
But: The resulting ISO image turns out much bigger than I anticipated. For example, I added a package that takes up about 1.5M on disk, but it increased the size of the ISO by about 14M. I mad sure to call 'apt-get clean' before leaving the chroot and to verify that /var/tmp and /root were empty and yet, there is space wasted that I can't account for.
Can anyone give me any pointers as to what I can do to make sure that I don't add unnecessary ballast to my remastered ISO?
Thanks, -juergen
On Fri, 27 Oct 2006 15:35:02 -0400, Juergen Fiedler wrote:
I added a package that takes up about 1.5M on disk, but it increased the size of the ISO by about 14M.
interesting, can you show us some data to justify the claim?
* Juergen Fiedler juergen.fiedler@gmail.com [20061027 21:37]:
I think I got the basics of remastering grml down OK: I copy the contents of the squashfs to a writable folder, chroot into it, do whatever I have to do, leave, recompress the image copy it back and rebuild the ISO image. Works well enough.
But: The resulting ISO image turns out much bigger than I anticipated. For example, I added a package that takes up about 1.5M on disk, but it increased the size of the ISO by about 14M. I mad sure to call 'apt-get clean' before leaving the chroot and to verify that /var/tmp and /root were empty and yet, there is space wasted that I can't account for.
Can anyone give me any pointers as to what I can do to make sure that I don't add unnecessary ballast to my remastered ISO?
That's the magical part of remastering. You have to make sure to clean up all files which have been changed during remastering which are not relevant.
Hint: take a look at /var/lib/dpkg/ and /var/lib/apt/lists/
regards, -mika-
On 10/27/06, Michael Prokop mika@grml.org wrote:
- Juergen Fiedler juergen.fiedler@gmail.com [20061027 21:37]:
I think I got the basics of remastering grml down OK: I copy the
contents of
the squashfs to a writable folder, chroot into it, do whatever I have
to do,
leave, recompress the image copy it back and rebuild the ISO image.
Works
well enough.
But: The resulting ISO image turns out much bigger than I anticipated.
For
example, I added a package that takes up about 1.5M on disk, but it increased the size of the ISO by about 14M. I mad sure to call 'apt-get clean' before leaving the chroot and to verify that /var/tmp and /root
were
empty and yet, there is space wasted that I can't account for.
Can anyone give me any pointers as to what I can do to make sure that I don't add unnecessary ballast to my remastered ISO?
That's the magical part of remastering. You have to make sure to clean up all files which have been changed during remastering which are not relevant.
Hint: take a look at /var/lib/dpkg/ and /var/lib/apt/lists/
I took a long, hard look and right now, I am doing the following in the chroot:
----------------------- apt-get clean find /var/lib/apt/lists/ -type f|xargs rm -f find /var/lib/dpkg/info/ -type f|xargs rm -f rm -f /var/lib/dpkg/*-old -----------------------
At one point, I had taken all of /var/lib/dpkg/info/* out, but it _is_ nice to still be able to do a 'dpk -l' or some such thing. Anyway: with the above procedure, I am back at a point where the whole ISO will fit on the CD. I suppose I could prune /var/lib/dpkg/info/ some more, but I'll do that when I need the additional space.
Thank you very much! -Juergen
participants (3)
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Juergen Fiedler -
Michael Prokop -
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