Comment 5 for bug 896511

Here is what is required for openSUSE 12.2 Live isos to boot:

Let unetbootin create usb stick, delete the big openSUSE-*-read-only.*-* file from the stick and copy the actual iso image to the stick

Edit syslinux.cfg to look like this:

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default openSUSE
implicit 1
display boot/i386/loader/isolinux.msg
#ui gfxboot bootlogo isolinux.msg
prompt 1
timeout 5
label openSUSE
  kernel boot/i386/loader/linux
  append initrd=boot/i386/loader/initrd ramdisk_size=512000 ramdisk_blocksize=4096 kiwidebug=1 isofrom=/dev/disk/by-uuid/XXXXXXXXXX:/openSUSE-................iso showopts

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Comment ui gfxboot bootlogo isolinux.msg and isofrom=/dev/disk/by-uuid/XXXXXXXXXX:/openSUSE-................iso are the changes to the default syslinux.cfg

isofrom=/dev/by-uuid/ACTUAL PARTITION OF THE STICK:/NAME OF.iso

unetbootin needs to make these changes, also copy the iso instead of copying openSUSE-*-read-only.*-* file.

Haven't tested NAME OF.iso other than openSUSE 12.2, but i guess it should work with any distro's iso.