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Re: Test Proposal for [bug #46716] Protective MBR partition is not marke
From: |
Thomas Schmitt |
Subject: |
Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable |
Date: |
Mon, 21 Dec 2015 22:06:08 +0100 |
Hi,
i wrote:
> > And the other non-working "EFI Boot" offer is gone ?
> > (That would mean it was the APM/HFS+ boot path.)
Alexander E. Patrakov wrote:
> Yes.
So APM with block size 2048 seems not to work on HDD with size 512.
(The bytes 2 and 3 of the GRUB2 MBR in its role as fake APM Block0
tell 2048.)
> > [2007 Mac]
> > Are there any bootable media for it, which are not from Apple ?
> Yes: http://porteus-kiosk.org/public/3.6/Porteus-Kiosk-3.6.0-i486.iso
The partitioning was most probably made by mjg's augmentations
to the program isohybrid.c. It shows the traces of some known
and meanwhile fixed bugs. E.g. the GPT partition names:
ASCII plus a few buffer overflow bytes where UTF-16LE is expected
yields chinese letters.
BIOS equipment is obviously ISOLINUX.
The file /EFI/BOOT/bootx64.efi in the EFI partition contains:
GNU GRUB version %s
2.00
So it is from here. :))
The following xorriso -as mkisofs options would reproduce its
bootability:
-V 'Porteus-Kiosk'
--modification-date='2015122119452136'
-isohybrid-mbr $MBR_TEMPLATE
-partition_cyl_align on
-partition_hd_cyl 64
-partition_sec_hd 32
-c '/boot/isolinux/isolinux.boot'
-b '/boot/isolinux/isolinux.bin'
-no-emul-boot
-boot-load-size 4
-boot-info-table
-eltorito-alt-boot
-e '/boot/isolinux/efi/efiboot.img'
-no-emul-boot
-isohybrid-gpt-basdat
The argument $MBR_TEMPLATE is the path to ISOLINUX file isohdpfx.bin
on the local disk. The first 446 bytes of the ISO image would serve
the same purpose.
Have a nice day :)
Thomas
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, (continued)
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/20
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/21
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/21
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable,
Thomas Schmitt <=
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/22
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/21
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Alexander E. Patrakov, 2015/12/21