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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: |
Sun, 20 Dec 2015 20:28:45 +0100 |
Hi,
Andrei Borzenkov wrote:
> Try access ESP content.
Err ... looking up manual ... you mean this ?
With ISO without -hfsplus :
qemu ... -bios .../OVMF.fd -cdrom ...iso
grub> ls (cd0,msdos2)/
error: unknown filesystem.
In contrast to
qemu ... -bios .../OVMF.fd -hda ...iso
grub> ls (hd0,msdos2)/
efi/ Nvars
Do you have a theory why this happens ?
(Beyond the simple fact that i did not obey to Vladimir's
prescriptions.)
------------------------------------------------------------
I see with -cdrom of the ISO without HFS+ and APM:
grub> ls (cd0)
...
Total size 18990KiB
grub> ls (cd0,msdos2)
... Partition start at 64440KiB - Total size 11520KiB
whereas xorriso sees
MBR partition table: N Status Type Start Blocks
MBR partition : 1 0x00 0x83 0 32220
MBR partition : 2 0x00 0xef 32220 5760
For some reason the perception of GRUB2 is too large by a factor
of two.
Lets call fdisk -lu as umpire (too old to take sides):
Device Boot Start End Sectors Size Id Type
...iso1 0 32219 32220 15.8M 83 Linux
...iso2 32220 37979 5760 2.8M ef EFI (FAT-12/16/32)
So either GRUB2 or OVMF is wrong, i'd say ... noobishly. {:)
----------------------------------------------------------------
With Alexander's grub-mkrescue original ISO:
grub > ls (cd0,gpt2)
... Partition start at 168KiB - Total size 2880KiB
xorriso sees
GPT start and size : 2 336 5760
GPT partition path : 2 /efi.img
fdisk ain't that old, after all:
Disklabel type: gpt
...
Device Start End Sectors Size Type
...iso2 336 6095 5760 2.8M EFI System
Have a nice day :)
Thomas
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, (continued)
- 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
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/20
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable,
Thomas Schmitt <=
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/20
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/20
- 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, Andrei Borzenkov, 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, Thomas Schmitt, 2015/12/21
- Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Andrei Borzenkov, 2015/12/24
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/27
- Re: Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable, Thomas Schmitt, 2015/12/27