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Old 08-19-2007, 08:12 PM   #1
Registered: Sep 2004
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/boot partition on cdrom

I am running debian testing version on a laptop with two physical partitions. The first for /boot and the second is an encrypted lvm2 with /, /usr, /var, /tmp, swap, /home. LUKS is used and a passphrase must be entered to access the partitions. I would like to make a copy of my /boot partition and put it on a CD-RW so I can boot the system from the CD-RW instead of the /boot on the internal hard drive.

Could someone tell me how to copy a /boot partition from a hard drive to a CD-RW so that it is bootable?

I was able get my boot partition onto a CD-RW so I can now boot from it. These are basically the steps I took:

mkdir -p iso/boot

cp -r /boot/* iso/boot/

cp /usr/lib64/grub/x86_64-pc/stage2_eltorito iso/boot/grub/

# comment out "savedefault" from menu.lst

genisoimage -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o grub.iso iso

In getting to this point, I found these links most helpful:

Last edited by bobotoes; 08-21-2007 at 01:19 PM.
Old 09-01-2007, 03:48 PM   #2
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I'm posting a reply so that anyone subscribed can see that you managed to achieve your objective. Thanks for taking the time to explain how you did it. BTW, would I be correct in assuming that the reason you did this was because you didn't want any non-encrypted data on the drive? Just curious.
Old 09-01-2007, 11:46 PM   #3
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Originally Posted by win32sux View Post
I'm posting a reply so that anyone subscribed can see that you managed to achieve your objective.
Thanks for doing that. Perhaps the system should be set up where notifications are sent out when edits occur as well as when new posts are added to a thread.


Thanks for posting the solution. This is the first I've heard of genisoimage. Do you know if there any significant difference in capabilites from mkisofs?
Old 11-23-2008, 02:45 PM   #4
Registered: Apr 2008
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The first for /boot and the second is an encrypted lvm2 with /, /usr, /var, /tmp, swap, /home.
What are the GRUB options that you use to boot this and did you add modules to support the encrypted lvm?


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