From: "Thomas Schmitt" <scdbackup@gmx.net>
To: grub-devel@gnu.org
Subject: Re: Grub module to return partuuid of a device such as (hd0, gpt1) at boot time
Date: Sun, 14 Aug 2016 17:44:42 +0200 [thread overview]
Message-ID: <38835886266461036896@scdbackup.webframe.org> (raw)
In-Reply-To: <35415886001541044910@scdbackup.webframe.org>
Hi,
... still trying to make sense of the specs.
Andrei Borzenkov wrote:
> According to UEFI Appendix A it goes into 7-th byte (starting with 0) of
> binary representation of EFI GUID.
Do you mean that one has to interpret the statement of UEFI 2.4
"All EFI GUIDs (Globally Unique Identifiers) have the format described
in RFC 4122 [...]
It should also be noted that TimeLow, TimeMid, TimeHighAndVersion fields
in the EFI are encoded as little endian."
as
The text format of EFI GUIDs is the same as in RFC 4122, but the binary
representation is byte-swapped at the first 4, 2, and 2 bytes.
If so, then i have to change the interpretation of the text form with the
new xorriso option.
Have a nice day :)
Thomas
next prev parent reply other threads:[~2016-08-14 15:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-12 14:11 Grub module to return partuuid of a device such as (hd0, gpt1) at boot time Steve Kenton
2016-08-13 17:30 ` adrian15
2016-08-13 18:40 ` Andrei Borzenkov
2016-08-13 20:25 ` Steve Kenton
2016-08-14 7:13 ` Andrei Borzenkov
2016-08-14 9:09 ` Thomas Schmitt
2016-08-14 11:55 ` Andrei Borzenkov
2016-08-14 13:55 ` Thomas Schmitt
2016-08-14 15:44 ` Thomas Schmitt [this message]
2016-08-14 16:06 ` Andrei Borzenkov
2016-08-14 18:24 ` Thomas Schmitt
2016-08-14 16:05 ` Andrei Borzenkov
2016-08-14 12:32 ` Steve Kenton
2016-08-14 18:31 ` Adding partition guid/uuid to the probe command for use with Linux kernel command line root=PARTUUID=$guid Steve Kenton
2016-08-15 4:04 ` Andrei Borzenkov
2016-08-15 5:09 ` Steve Kenton
2016-08-14 4:12 ` Grub module to return partuuid of a device such as (hd0, gpt1) at boot time Michael Zimmermann
2016-08-14 6:42 ` Andrei Borzenkov
2016-08-13 20:30 ` Steve Kenton
-- strict thread matches above, loose matches on Subject: below --
2016-08-15 2:43 Nick Vinson
2016-08-15 2:58 ` skenton
2016-08-15 3:47 ` Nick Vinson
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