Friends,
I'm trying to create some menu options for our boot image (for a
networked KS install), and for some reason I'm not able to make a
bootable ISO. Here's the minimum I can do to recreate the problem:
:) wget
http://mirror.itc.virginia.edu/fedora//releases/18/Fedora/x86_64/os/images/boot.iso
:) mkdir mnt
:) mkdir copy
:) mount boot.iso mnt -o loop
:) cp -avr mnt/* copy
:) mkisofs -o boot2.iso -b isolinux/isolinux.bin -c
isolinux/isolinux.cat -no-emul-boot -boot-load-size 4 -J -R -V "Fedora" copy
:) dd if=boot.iso of=/dev/sdc
:) dd if=boot2.iso of=/dev/sdd
Okay, so I did absolutely nothing to the image, right? But...
:) ll -h
351M boot2.iso
294M boot.iso
And, most importantly, boot2.iso doesn't boot at all - like, the bios
says "requested boot device unavailable" or something. (Dell Precision
T3400)
So, uh, if you wanted to edit isolinux/isolinux.cfg to add menu options
for a network kickstart, how would you do it?
Thanks much,
Charles.
More info:
mkisofs options grabbed from
http://techspotting.org/creating-a-kickstart-cd-dvd-fedora-redhat-centos/
:) isoinfo -d -i boot.iso > b1
:) isoinfo -d -i boot2.iso > b2
:) diff b1 b2
3c3
<Volume id: Fedora 18 x86_64
---
>Volume id: Fedora
14C14
<Volume size is: 150207
---
>Volume size is: 179536
29c29
<Bootoff 3567 13671
---
>Bootoff 2F 47
If I mount boot2.iso, it is identical to /mnt as far as I can tell.
(same size, same dates, same permissions...)
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