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. > 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. Regards, Till
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