Re: Creating a bootable CD with CD Loader
Hi Gary, thanks for the reply. How do you mean it doesn't boot fully? Creating a bootable cd is in the handbook. My first test cd didn't boot because it couldn't find a root filesystem to mount i think. I sorted that by just borrowing my fstab from my running system and put in on the cd in /etc/fstab. # mkisofs -R -no-emul-boot -b boot/cdboot -o /tmp/bootable.iso /tmp/cdfiles Your tmp/cdfiles should contain a boot folder matching that on the encrypted system. You'll only need the kernel and modules that you load though and gzipping them will speed up the slow boot. You'll also need to modify your loader.conf: Thanks for that, i was wondering where that cdboot binary was, it seems it's in the /boot directory. Dunno how i missed that :) Unfortunately my BIOS wont boot from a pendrive, so ill just run it all off a CD. But making the bootable CD ended up being harder than it should have. Chris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Creating a bootable CD with CD Loader
Hi, I'm looking to create my own custom boot CD that will be used to bootstrap fully encrypted system using GEOM ELI. All the CD needs to do is load a kernel to initialize the encrypted root partition on the HDD, and read a key file to decrypt it. Ive looked at some tutorials for creating your own boot CD's but often they seem overly complicated or old. It seems to me the easiest way to do this is either: To use one of the FreeBSD floppy images and get it to boot from CD correctly. Or to use the CD Loader that the the distributed FreeBSD CD's use. I ripped the CD Loader image out of one of the FreeBSD 6.1 CD's, and it seems to work as wanted. It loads the kernel from the system I'm running at the moment, I just put my current /boot directory on the CD (although it doesn't fully boot, i guess it just needs some config changes). But I'm a little wary of using something that i don't really understand. Rather than just ripping the CD Loader out of an already made ISO i would be interested in knowing how it is created. So i could create a bootable CD without needing to borrow parts from a distributed one, and get a better idea of how it works. Any help appreciated. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Creating a bootable CD with CD Loader
On Fri, 22 Sep 2006 17:45:36 +0100 Chris [EMAIL PROTECTED] wrote: Hi, I'm looking to create my own custom boot CD that will be used to bootstrap fully encrypted system using GEOM ELI. All the CD needs to do is load a kernel to initialize the encrypted root partition on the HDD, and read a key file to decrypt it. Hi Chris, I recently did this for two laptops, one booting from usb and the other from cd with both of them getting the key from a usb drive. If your key is on the cd, then it's no problem. A bit harder if you have to boot from cd and then mount a usb drive to read the key. I ripped the CD Loader image out of one of the FreeBSD 6.1 CD's, and it seems to work as wanted. It loads the kernel from the system I'm running at the moment, I just put my current /boot directory on the CD (although it doesn't fully boot, i guess it just needs some config changes). How do you mean it doesn't boot fully? Creating a bootable cd is in the handbook. # mkisofs -R -no-emul-boot -b boot/cdboot -o /tmp/bootable.iso /tmp/cdfiles Your tmp/cdfiles should contain a boot folder matching that on the encrypted system. You'll only need the kernel and modules that you load though and gzipping them will speed up the slow boot. You'll also need to modify your loader.conf: geom_eli_load=YES kern.geom.eli.debug=0 kern.geom.eli.visible_passphrase=0 geli_ad0_keyfile0_load=YES geli_ad0_keyfile0_type=ad0:geli_keyfile0 geli_ad0_keyfile0_name=/ad0.key You'll also need an /etc/fstab in /tmp/cdfiles with the root partition: eg /dev/ad0.elia / ufs rw 1 1 The other thing I recall is that bug kbdmux bug in 6.1. Shows up on some but not all from what I can remember. If you are using a password as well as a key, and the keyboard seems to have frozen when you try to enter the password, try this in device.hints: hint.kbdmux.0.disabled=1 Cheers Gary ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Creating a bootable CD
I have been reading http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html and the info there is easy to understand, but I am confused on how to go about do a buildworld and installing it to the path I am going to use for the creating the ISO from? You may also want to look at: /usr/ports/sysutils/freesbie _ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Creating a bootable CD
I have been reading http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html and the info there is easy to understand, but I am confused on how to go about do a buildworld and installing it to the path I am going to use for the creating the ISO from? ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
