On Sunday, April 12 2009, Till Maas said: > On So April 12 2009, Kevin Kofler wrote: > > psmith wrote: > > > like i said it was brought up that liveusb-creator and > > > livecd-iso-to-disk were available, but both of these are additional > > > packages and incur resource usage where as releasing an iso that is both > > > usb and cdr compatible saves resources > > > > Actually, making a hybrid ISO wastes the resource which is most valuable: > > disk space on the live CD! We're always very much at the limit of the live > > CD size, we have no room for extra USB stuff. > > Is this really the case? By accident I found that the isolinux package > contains a isohybrid shell script which modifies existing iso images to be > hybrid. It only writes to the MBR, which is filed with nullbytes in the F11 > Beta iso image and pads the image to a fake cylinder boundary. This makes the > image only around 600KB larger, but I guess even these 600KB can still be used > by the filesystem. The only problem I currently see, is that it seems to > conflict with the implanted md5 checksum. It's on my list to look at, but its existence was a little late for F11. The conflict with the implanted md5 makes me a little sad inside, but maybe we can come up with a good way to do both. The other thing it seems somewhat likely to conflict with is dual-mode MBR/EFI boot CDs which we also want to support. > > liveusb-creator is the more useful method, as it allows you to control your > > overlay size and share the USB stick with other stuff. > > The problem with live-iso-to-disk is, that it is not functional on F10 to > create F11 live USB media, because it requires a F11 syslinux package. To > create testing live USB media, it would be a lot better if it was possible > just to use the latest Fedora Stable release to create bootable test media, > which should be always possible to use dd or cat with the hybrid iso. There's a hacked livecd-iso-to-disk.sh in git and on my fedorapeople page[1] that feedback on would be helpful. Assuming it works, then we'll probably push the hack back to older releases. I was hoping to find something better, but so far, no dice :/ Jeremy [1] http://katzj.fedorapeople.org/livecd-iso-to-disk.sh -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
