I have Ubuntu 8.10 booting now by iso. I could not get it to work until I put the iso inside a folder titled iso. Here is my working menuentry
menuentry "ubuntu8.10amd64 (ISO = /dev/sda8)" {
insmod ext2
setroot=(hd0,8)
loopback loop (hd0,8)/iso/ubuntu8.10amd64.iso
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/iso/ubuntu8.10amd64.iso noeject noprompt
initrd (loop)/casper/initrd.gz
}
I'm trying to understand the linux booting process a little more. Its pretty simple to get the first part of it to load and then either a no file system error or you need to load the kernel first error will kill the process. I was getting a kernel panick message in Ubuntu before putting it in a folder named iso on its own partition.
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