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From: "Thomas Schmitt" <scdbackup@gmx.net>
To: bug-xorriso@gnu.org
Cc: guix-devel@gnu.org
Subject: Re: ISO installer image: GPT versus MBR partitions
Date: Sat, 20 Apr 2019 13:29:44 +0200	[thread overview]
Message-ID: <32660673065364621040@scdbackup.webframe.org> (raw)
In-Reply-To: <32128673174594726028@scdbackup.webframe.org>

Hi,

... and if the erasure of the partition table entry helps, would it then
also help if that entry's partition does not start at LBA 0 ?

Change bytes 446 (dec) to 461 (dec) from (in hex):

  80  00  01  00  01  01  12  4f  00  00  00  00  40  0b  00  00

to

  80  00  02  00  01  01  12  4f  01  00  00  00  3f  0b  00  00

"02" = Sector 2 = LBA 1.
"01 00 00 00" = LBA 1.
"3f 0b 00 00" = bloc count 2879, rather than 2880.


Reasoning:

It would make a nice endless loop if EFI dives into any partition
and looks for sub partition tables. The one in GRUB's efi.img refers
to itself.
DVD might be immune because EFI does not do this diving when it finds
the partition by the El Torito boot catalog.


Have a nice day :)

Thomas

  reply	other threads:[~2019-04-20 11:27 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190415165451.dpzngealeisbibc7@pelzflorian.localdomain>
     [not found] ` <1582867226375139246@scdbackup.webframe.org>
2019-04-16  9:57   ` bug#33639: ISO installer image is broken on i686 Gábor Boskovits
2019-04-16 13:40     ` ISO installer image: GPT versus MBR partitions (was bug#33639) Thomas Schmitt
2019-04-16 16:32       ` pelzflorian (Florian Pelz)
2019-04-16 17:57         ` ISO installer image: GPT versus MBR partitions Thomas Schmitt
2019-04-16 19:55           ` pelzflorian (Florian Pelz)
2019-04-16 20:31             ` pelzflorian (Florian Pelz)
2019-04-16 21:15               ` Thomas Schmitt
2019-04-17  8:59                 ` pelzflorian (Florian Pelz)
2019-04-17 10:23                   ` Thomas Schmitt
2019-04-17 10:30                     ` pelzflorian (Florian Pelz)
2019-04-17 15:51                     ` Thomas Schmitt
2019-04-17 22:35                       ` pelzflorian (Florian Pelz)
2019-04-18  6:32                         ` Thomas Schmitt
2019-04-18  7:00                           ` Thomas Schmitt
2019-04-18  7:07                             ` pelzflorian (Florian Pelz)
2019-04-18  8:13                               ` Thomas Schmitt
2019-04-18 12:19                                 ` pelzflorian (Florian Pelz)
2019-04-18 13:50                                   ` Thomas Schmitt
2019-04-18 21:28                                     ` Thomas Schmitt
2019-04-19  7:29                                       ` pelzflorian (Florian Pelz)
2019-04-19  8:03                                     ` pelzflorian (Florian Pelz)
2019-04-19  9:01                                       ` Thomas Schmitt
2019-04-19  9:39                                         ` pelzflorian (Florian Pelz)
2019-04-19 10:58                                           ` Thomas Schmitt
2019-04-19 14:57                                             ` pelzflorian (Florian Pelz)
2019-04-19 11:30                                         ` pelzflorian (Florian Pelz)
2019-04-19 18:33                                           ` pelzflorian (Florian Pelz)
2019-04-19 19:23                                             ` Thomas Schmitt
2019-04-20 10:26                                               ` pelzflorian (Florian Pelz)
2019-04-20 10:50                                                 ` Thomas Schmitt
2019-04-20 11:16                                                   ` Thomas Schmitt
2019-04-20 11:29                                                     ` Thomas Schmitt [this message]
2019-04-20 14:23                                                       ` Thomas Schmitt
2019-04-20 14:54                                                         ` pelzflorian (Florian Pelz)
2019-04-20 15:17                                                           ` pelzflorian (Florian Pelz)
2019-04-20 15:33                                                           ` pelzflorian (Florian Pelz)
2019-04-20 16:32                                                             ` Thomas Schmitt
2019-04-21  7:58                                                               ` pelzflorian (Florian Pelz)
2019-04-21  9:35                                                                 ` Thomas Schmitt
2019-04-21 11:10                                                                   ` pelzflorian (Florian Pelz)
2019-04-21 11:16                                                                 ` Thomas Schmitt
2019-04-21 11:56                                                                   ` pelzflorian (Florian Pelz)
2019-04-21 12:27                                                                     ` Thomas Schmitt
2019-04-21 14:11                                                                       ` pelzflorian (Florian Pelz)
2019-04-21 14:36                                                                         ` Thomas Schmitt
2019-04-22 13:11                                                                           ` Thomas Schmitt
2019-04-23 16:40                                                                       ` pelzflorian (Florian Pelz)
2019-04-23 17:23                                                                         ` Thomas Schmitt
2019-04-17 12:24               ` Ludovic Courtès
2019-04-17 13:42                 ` pelzflorian (Florian Pelz)
2019-04-23 18:14       ` Thomas Schmitt
2019-04-23 19:50         ` pelzflorian (Florian Pelz)
2019-04-23 20:18           ` Thomas Schmitt
2019-04-23 21:43             ` pelzflorian (Florian Pelz)
2019-04-24  6:56               ` Thomas Schmitt
2019-04-24  9:13                 ` pelzflorian (Florian Pelz)
2019-04-24 10:34                   ` Thomas Schmitt
2019-04-24 22:13                     ` Danny Milosavljevic
2019-04-25  7:07                       ` Thomas Schmitt
2019-04-25  9:45                       ` pelzflorian (Florian Pelz)
2019-04-25 13:44                         ` Thomas Schmitt
2019-04-25 14:59                           ` Danny Milosavljevic
2019-04-25 16:22                             ` Thomas Schmitt
2019-04-25 17:55                               ` Danny Milosavljevic
2019-04-25 18:46                                 ` Thomas Schmitt
2019-04-25 19:01                                   ` Danny Milosavljevic
2019-04-25 16:34                         ` Ludovic Courtès
2019-04-26 11:34                           ` pelzflorian (Florian Pelz)
2019-04-26 14:41                             ` Ludovic Courtès
2019-04-26 15:30                               ` pelzflorian (Florian Pelz)
2019-04-26 13:57                           ` Thomas Schmitt
2019-04-27 13:20                             ` Ludovic Courtès
2019-04-27 16:24                               ` Thomas Schmitt
2019-04-28 12:53                                 ` Ludovic Courtès
2019-04-25 11:49                   ` pelzflorian (Florian Pelz)
2019-04-25 15:09                     ` Thomas Schmitt
2019-04-25 15:58                       ` pelzflorian (Florian Pelz)
2019-04-25 16:40                         ` Thomas Schmitt

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