Re: [Tails-testers] tails 3.12rc1 becomes unbootable on bios…

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Author: intrigeri
To: . ., Tails list for early testers, segfault
Subject: Re: [Tails-testers] tails 3.12rc1 becomes unbootable on bios after first use

Thanks a lot for the additional info! segfault, see below, I hope
that's all you need to track down the problem and fix it in time for
3.12 (or shout and tell me you can't :) And I'm sure the OP
will be more than happy to share any additional info you need.

. .:
> hello, i kind of "solved" the bug. i opened the usb disk in gdisk and
> rebuilt the protective MBR, which made the disk bootable again on BIOS.

>>> i upgraded tails 3.11 to the testing release from the live usb

>> How exactly did you apply this upgrade?

> i applied the upgrade first through the update function from the live os
> environment and also with GNOME disks. the bug occurs in both instances.

> in the attachment you can find a dd of the mbr + gpt header of the disk(not
> working on bios).
> gpt.diff is a diff of the hexdump of mbr+gpt h. of the disk before and
> after workaround. as you can see, there is only a few bytes difference
> within the mbr

> 29c29
> < 000001c0: 0100 eefe ffff 0100 0000 591a cd01 0000 ..........Y.....
> ---
>> 000001c0: 0200 eeff ffff 0100 0000 591a cd01 0000 ..........Y.....