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...does anyone have suggestions for what modification I'd need to look at to support this on a logical parttion? Would the change be in the isohybrid tool, or (I'm guessing more likely) in the actual MBR image that the tool writes over the ISO? On 28 December 2016 at 19:06, Duncan Elliot <dmelliot at gmail.com> wrote: > Hi, > > I have been attempting to set up a multi-boot USB stick (i.e. multiple > bootable ISO images on the one stick) > I have had good success by: > - processing ISO with isohybrid (with "partok" flag) > - dd'ing ISO to primary partiti...

Hi, I have been attempting to set up a multi-boot USB stick (i.e. multiple bootable ISO images on the one stick) I have had good success by: - processing ISO with isohybrid (with "partok" flag) - dd'ing ISO to primary partitions on the USB stick (e.g /dev/sdc2, /dev/sdc3, /dev/sdc4) - installing grub to USB stick and configuring to chainload to these partitions To remove the limit

Thanks for the clarification Thomas. Thomas Schmitt wrote: > (Did you already tell which partitions exist and in which one do you want > to put your ISO ?) I've tried a number of different structures, but the results are consistent (boots fine from primary partitions, not from logical partitions). For example for a disk partitioned like below: Disk /dev/sdc: 3.8 GiB, 4007657472

Thomas Schmitt wrote: > Since we know that the isolinux.bin binary is well ok on other partitions, > i'd say that the MBR code does not load the right blocks from disk when > it wants to get isolinux.bin. Yes, these are my thoughts as well. I think the jump from GRUB to the isohybrid code on the logical partition is working fine, but when the isohybrid code is trying to jump to

Thanks for all the input everyone. I can understand the problem more clearly now. Didier Spaier wrote: > Sorry if this is a silly question: why not use a GUID partition > table instead of using logical partitions? Not a silly question, I had the same idea and had tried it out but it didn't work (same error msg). Ady Ady wrote: > The typical (modern) "MBR" supports 4