Mounting ISO-images in Linux

How to mount an ISO image in linux so you can use it as a normal file system.

1) Ensure kernel support for CD-ROM
(ISO 9660 CDROM file system support, Microsoft Joliet CDROM extensions, Transparent decompression extension)

2)

~# mount -o loop -t iso9660 xyz.iso /mnt/iso/

OffTopic

Grub config for booting Ubuntu installer from Harddisk

title  New Install
kernel (hd0,0)/boot/newinstall/vmlinuz root=/dev/ram devfs=mount,dall ramdisk_size=17000
initrd (hd0,0)/boot/newinstall/initrd.gz