search for: efiboot

...Torito boot img : 2 UEFI y none 0x0000 0x00 2880 47 El Torito boot img : 3 UEFI y none 0x0000 0x00 5472 779 El Torito img path : 1 /isolinux/isolinux.bin El Torito img opts : 1 boot-info-table isohybrid-suitable El Torito img path : 2 /isolinux/efiboot.img El Torito img path : 3 /isolinux/macboot.img So El Torito is now as expected by isohybrid.c, which added to the ISO image an MBR, a GPT, and an Apple Partition Map. The MBR partitions are (block size is 512): MBR partition table: N Status Type Start Blocks MBR partit...

...n isohybrid image, then you cannot use 'syslinux.efi'". This would be incorrect. There is no incompatibility between 'syslinux.efi' and isohybrid images. The apparent limitation, if someone wants to call it that way, is that 'syslinux.efi' does not make use of "efiboot.img" as GRUB2 does. Currently (as of v.6.03) 'syslinux.efi' is not capable of booting optical media (or any media using ISO9660) in UEFI mode. But, if I take an isohybrid image already containing 'syslinux.efi' (and related files) and I copy the contents onto a FAT partitio...

Hi, On 29/07/2014 21:34, Thomas Schmitt wrote: > Nevertheless i advise Didier to simply try with 0xef rather than Mac. At least the ISO will then have MBR, GPT and APM entries for the file macboot.img. I did that, and also tried the xorriso command you posted. I uploaded both ISO images on http://slint.fr/misc/MacBoot resp. renamed: slint64-14.1-Thomas_mkisofs.iso

...tt wrote: > A good opportunity to brag with xorriso's boot inspection > features (since xorriso-1.3.8): Yes! I've upgraded libburn, libisofs and libisoburn so now I can play with it too ;) > I forgot to advise (or misadvise) -isohybrid-apm-hfsplus with > the image /isolinux/efiboot.img . So we only got one APM > partition here. A slight deviation from mjg59's layout. > > It is a lie to give efiboot.img the partition type Apple_HFS. > isohybrid.c does it that way. So the perfect mimic would be > -e isolinux/efiboot.img \ > -isohybrid-gpt-ba...

Hi, Please tell me the steps to create efiboot.img. Thank you!! Shagun

Hi All, I am trying to make a customer ISO. When I run this command: mkisofs -o $DESTINATION_FILE -b isolinux/isolinux.bin -c boot.cat \ -no-emul-boot -boot-info-table \ -V "$NAME" -boot-load-size 4 -boot-info-table -R -J -v -T \ -eltorito-alt-boot -e images/efiboot.img \ $DESTINATION_DIR it tells me: Size of boot image is 4 sectors -> No emulation Size of boot image is 17408 sectors -> genisoimage: Error - boot image 'images/efiboot.img' has not an allowable size. This is the exact same file that is on the Everything ISO image. What a...

...step-by-step "HowTos", and I currently have no intention to write them either. The Syslinux wiki has more than 100 pages; among others: http://www.syslinux.org/wiki/index.php/Install Are the ISO image building tools (e.g. mksiofs, genisoimage, xorriso...) related to so-called "efiboot.img" files? Yes, in a similar way that they are related to any "El Torito" image. Is the isohybrid tool (in any of its variants) related to so-called "efiboot.img" files? Yes, in a similar way that the isohybrid tool is related to any "El Torito" image. Is t...

> Would it be desirable to explain how Fedora et.al. > created their FAT boot images by help of old or new > GRUB ? > (If developers of EFI bootable ISOs are reading this, > please give a short sketch of the procedure.) I did it by including the Linux kernel and the initramfs, but that's sub-optimal since I need to have them in two places. That's why I asked about re-using

> None of the ISOs i know has this stuff in the FAT image. > There must be some way for GRUB/GRUB2 to escape from FAT > into the ISO. > debian-7.7.0-amd64-netinst.iso does the job by a > bootx64.efi binary of 421888 bytes. It's the only file > in the FAT (of 458752 bytes). I'll try to use it to see if it works. > It might be a workaround for ISOLINUX to bring

On Sun Apr 05 15:17, Thomas Schmitt via Syslinux wrote: > None of the ISOs i know has this stuff in the FAT image. > There must be some way for GRUB/GRUB2 to escape from FAT > into the ISO. > debian-7.7.0-amd64-netinst.iso does the job by a > bootx64.efi binary of 421888 bytes. It's the only file > in the FAT (of 458752 bytes). [ long time syslinux user -- thanks all!! ] At

Hi, > 6. Renamed back /EFI/boot/bootx64.efi to /EFI/boot/syslinux.efi, just > to be sure. The "Default fallback loader on 32 MiB device" entry has > changed to "Syslinux on 32 MiB device". How the hell does it know that it is "Syslinux" ? The same file content does not cause that name if it is presented under the default name. Does EFI just guess

Hi, i wrote: > > Does EFI just guess "Syslinux" from "syslinux.efi" ? piranna at gmail.com wrote: > Maybe EFI, but I think it's rEFInd, > http://www.rodsbooks.com/refind/ Oh, a man in the middle with extra brains. This explains a lot. >From what storage device does it boot ? (From hard disk ?) Will it be present with the production images ? > > I

...x-owner at zytor.com ----- Date: Sun, 05 Apr 2015 17:09:50 -0700 from: syslinux-owner at zytor.com To: syslinux-owner at zytor.com Subject: Syslinux post from piranna at gmail.com requires approval List: Syslinux at zytor.com From: piranna at gmail.com Subject: Re: [syslinux] Is efiboot.img required? Reason: El cuerpo del mensaje es demasiado grande: 8282739 bytes con un l?mite de 512 KB Date: Mon, 6 Apr 2015 02:09:10 +0200 from: "piranna at gmail.com" <piranna at gmail.com> To: Thomas Schmitt <scdbackup at gmx.net> Cc: syslinux at zytor.com Subject: R...

...Torito boot img : 1 BIOS y none 0x0000 0x00 4 22645 El Torito boot img : 2 UEFI y none 0x0000 0x00 24856 47 El Torito img path : 1 /isolinux/isolinux.bin El Torito img opts : 1 boot-info-table isohybrid-suitable El Torito img path : 2 /isolinux/efiboot.img xorriso : NOTE : No System Area was loaded There is neither MBR nor GPT. So booting from USB-stick or other hard-disk-like device would demand that the UEFI implementation understands ISO 9660 and knows where to look for efiboot.img. If presented as (pseudo-)CD-ROM, /isolinux/efiboot.img sh...

...1 BIOS y none 0x0000 0x00 4 22645 > El Torito boot img : 2 UEFI y none 0x0000 0x00 24856 47 > El Torito img path : 1 /isolinux/isolinux.bin > El Torito img opts : 1 boot-info-table isohybrid-suitable > El Torito img path : 2 /isolinux/efiboot.img > xorriso : NOTE : No System Area was loaded > > There is neither MBR nor GPT. So booting from USB-stick or other > hard-disk-like device would demand that the UEFI implementation > understands ISO 9660 and knows where to look for efiboot.img. I feel ashamed. I forgot to...

...he end of the script used to make the ISO image, . the tree of the ISO file, . the beginning of /EFI/BOOT/syslinux.cfg, . the output of "dumpet -h -i <filename>.iso" As you can see, I've put all needed file in /EFI/BOOT, also copied in the Fat 12 partition included in /isolinux/efiboot.img I can add entries in the boot menu as the boot manager finds the file \EFI\BOOT\bootx64.efi, but get the same behavior using these menu entries. I've seen the same error message in the ML but in a different context. I'm a complete newbie and never used syslinux 6.03 before, so I assu...

Quoting http://www.syslinux.org/wiki/index.php/Isohybrid#UEFI: "The additional isohybrid feature for UEFI adds a partition to the MBR partition table pointing to the same file in the ISO 9660 filesystem as does the El Torito catalog entry for EFI." According to this (and can be see using fdisk) it's being created a partition-inside-partition just by setting its start and end

> isohybrid violates UEFI by combining both methods and > by nesting partitions. The motivation for this is given by > Matthew Garrett in > http://mjg59.dreamwidth.org/11285.html There it says about creating a third El Torito image only for Macs, since old ones could fail and this could be the problem I'm having. I've used the --mac option of IsoHybrid and it's demanding

> The third boot image is HFS+, not FAT. > I understand this is for pre-EFI Macs. Apple started usinf EFI when it switched to Intel x86 CPUs, previous to this ones it was using OpenFirmware in their PowerPC "new world" machines (IBM PowerPC G4 & G5). > Try a Debian amd64 ISO, e.g.: >

> Quoting http://www.syslinux.org/wiki/index.php/Isohybrid#UEFI: > > "The additional isohybrid feature for UEFI adds a partition to the MBR > partition table pointing to the same file in the ISO 9660 filesystem > as does the El Torito catalog entry for EFI." > > According to this (and can be see using fdisk) it's being created a > partition-inside-partition