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i need to write an iso to a HD partition, the main reason is so that i can boot it from GRUB, i cannot boot CD's or PXE boot, the smart boot manager doesnt work either so can anyone tell me how to format a HDD partition to ISO9660 format, or write not only the files but the boot sector of an iso image to a normal HDD partition?
Being able to boot CDR/DVD (apart from the BIOS setting) means the BIOS and CDR/DVD drive being able to read a (1.4 or 2.8MB) El Torito. If your system doesn't recognise it then it won't recognise it as one if you write it to HD so "formatting a HDD partition to ISO9660 format" won't work. What removable media can the box handle? Doesn't it contain a floppy drive?
it has both a cd/dvd-rw drive and a floppy drive, i cannot boot the cd because of special circumstances, i want to use grub to chainload an iso image but grub doesnt have cd support so i therefore need to be able to chainload an HDD partition to boot a cd image, i know what i'm talking about here and i prefer not to go into the nitty gritty details
when i said "i know what i'm talking about here" i meant about that my computer could boot a cd/dvd if i had a floppy or an HDD partition that could point my system to my cd/dvd-rw drive, due to having no onboard IDE connections that work, i'm currently using a Promise technologies ultra100 IDE PCI card (ie. it turns a PCI slot into 2 IDE connections) it has no cd-booting support, i'm getting a new MB soon anyway but i need to be able to boot this maimed system with a new OS
Last edited by Person_1873; 12-19-2007 at 09:38 AM.
Distribution: openSuSE Tumbleweed-KDE, Mint 18.3+19.3, MX-18, Mandrake
Posts: 4,417
Rep:
Hey unSpawn couldn't he copy the DVD/CD with "dd" to the hard disk and then mount it in a loop device? Sorry to ask like this but I have no idea whether and how it would work...
And that is how it can be applied to a USB device. Booting off from a hard disk is even easier. Make sure you read Post #5.
A few inaccuracies here.
(1) If this statement "i know what i'm talking about here and i prefer not to go into the nitty gritty details" is correct then you should know "to format a HDD partition to ISO9660 format" is impossible.
(2) The statement "grub doesnt have cd support" is incorrect because stage2_eltorito in Grub can be used to boot any CD and DVD. The above link proves Grub can be used to boot CD/DVD. It has been inside Grub for donkey years!
An iso file can be booted from any hard disk including USB device but it requires the following
(1) You need a Linux or a Windows to expand the iso file into a normal filing system first.
(2) You need to substitute isolinux with Grub. The above links show plenty examples.
ok sorry i was under the impression that eltorito was supposed to be loaded onto a CD so that when you booted a CD it loaded up GRUB... could someone give me some direction on how to install eltorito on my HDD MBR?
here's the grub config with machine specific data made obvious
Code:
title Ubuntu 7.10 Live CD
kernel /casper/vmlinuz append file=/preseed/ubuntu.seed boot=casper
initrd /casper/initrd.gz quiet splash cdroot=/dev/hdf1 --
replace cdroot=/dev/hdf1 with cdroot=/dev/the partition that contains your extracted ISO
also the partition MUST be in ext3 format not ext2 otherwise the kernel doesn't like it
Last edited by Person_1873; 12-19-2007 at 10:00 AM.
well thanks for the link anyway saikee, i've now managed to boot and install Ubuntu 7.10 from the live CD using a grub boot floppy i made as a backup incase i screwed my MBR (which i did) and all is well
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write an iso boot sector and all to HDD partition
couldn't he copy the DVD/CD with "dd" to the hard disk and then mount it in a loop device? Sorry to ask like this but I have no idea whether and how it would work...
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