GNU bug report logs - #35856
Unable to boot on iMac, likely because of UUIDs

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To reply to this bug, email your comments to 35856 AT debbugs.gnu.org.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Francisco Gómez <espectalll <at> kydara.com>
To: bug-guix <at> gnu.org
Subject: Unable to boot on iMac, likely because of UUIDs
Date: Wed, 22 May 2019 11:10:00 +0000

When I have inserted a device recorded with a GuixSD image in my Late 
2009 iMac (EFI, not UEFI) during boot, the computer gets stuck in a 
loop and doesn't respond. I believe this is due to a lack of, or 
duplication, of UUIDs (not to be confused with PARTUUIDs) on some 
partitions, as manually assigning them allows my computer to properly 
detect the attached devices and boot from the GuixSD one (although not 
successfully).

> udisksctl loop-setup -rf guix-system-install-1.0.1.x86_64-linux.iso
Mapped file guix-system-install-1.0.1.x86_64-linux.iso as /dev/loop0.

> sudo blkid -o list | grep ^/dev/loop0 | cut -d" " -f1 | sort
/dev/loop0
/dev/loop0p1
/dev/loop0p2
/dev/loop0p3
/dev/loop0p4

> sudo blkid -s UUID | grep ^/dev/loop0
/dev/loop0: UUID="1970-01-01-19-49-46-83"
/dev/loop0p2: UUID="C920-B8AE"

Message #8 received at 35856 <at> debbugs.gnu.org (full text, mbox):

From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: Francisco Gómez <espectalll <at> kydara.com>
Cc: 35856 <at> debbugs.gnu.org
Subject: Re: bug#35856: Unable to boot on iMac, likely because of UUIDs
Date: Wed, 22 May 2019 16:09:09 +0200

On Wed, May 22, 2019 at 11:10:00AM +0000, Francisco Gómez wrote:
> When I have inserted a device recorded with a GuixSD image in my Late 2009
> iMac (EFI, not UEFI) during boot, the computer gets stuck in a loop and
> doesn't respond. I believe this is due to a lack of, or duplication, of
> UUIDs (not to be confused with PARTUUIDs) on some partitions, as manually
> assigning them allows my computer to properly detect the attached devices
> and boot from the GuixSD one (although not successfully).
> 
> > udisksctl loop-setup -rf guix-system-install-1.0.1.x86_64-linux.iso
> Mapped file guix-system-install-1.0.1.x86_64-linux.iso as /dev/loop0.
> 
> > sudo blkid -o list | grep ^/dev/loop0 | cut -d" " -f1 | sort
> /dev/loop0
> /dev/loop0p1
> /dev/loop0p2
> /dev/loop0p3
> /dev/loop0p4
> 
> > sudo blkid -s UUID | grep ^/dev/loop0
> /dev/loop0: UUID="1970-01-01-19-49-46-83"
> /dev/loop0p2: UUID="C920-B8AE"
> 
> 
> 
> 
> 
> 

I believe this is <https://issues.guix.info/issue/35428>.
Unfortunately Danny pushed his patch after the 1.0.1 release got
branched off.

Can you try an ISO built from current Guix git master?

Regards,
Florian

Message #11 received at 35856 <at> debbugs.gnu.org (full text, mbox):

From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: Francisco Gómez <espectalll <at> kydara.com>
Cc: 35856 <at> debbugs.gnu.org
Subject: Re: bug#35856: Unable to boot on iMac, likely because of UUIDs
Date: Wed, 22 May 2019 16:35:13 +0200

On Wed, May 22, 2019 at 04:09:09PM +0200, pelzflorian (Florian Pelz) wrote:
> Can you try an ISO built from current Guix git master?
> 

If this ISO works, then this still-ongoing GRUB mailing list thread
described your issue as well:

https://lists.gnu.org/archive/html/grub-devel/2019-04/msg00099.html

Regards,
Florian

Message #14 received at 35856 <at> debbugs.gnu.org (full text, mbox):

From: Danny Milosavljevic <dannym <at> scratchpost.org>
To: Francisco Gómez <espectalll <at> kydara.com>
Cc: 35856 <at> debbugs.gnu.org,
 "pelzflorian \(Florian Pelz\)" <pelzflorian <at> pelzflorian.de>
Subject: Re: bug#35856: Unable to boot on iMac, likely because of UUIDs
Date: Wed, 22 May 2019 19:23:08 +0200

[Message part 1 (text/plain, inline)]

> Can you try an ISO built from current Guix git master?

Yeah.  Please try https://drive.google.com/open?id=15YTPS2jt1l3VMyE4LTbMCoy7DnEu7etv .

[Message part 2 (application/pgp-signature, inline)]

Message #17 received at 35856 <at> debbugs.gnu.org (full text, mbox):

From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: Francisco Gómez <espectalll <at> kydara.com>
Cc: 35856 <at> debbugs.gnu.org
Subject: Re: bug#35856: Unable to boot on iMac, likely because of UUIDs
Date: Thu, 23 May 2019 22:18:27 +0200

On Thu, May 23, 2019 at 03:12:44PM +0200, Francisco Gómez wrote:
> Built an image after doing `guix pull`, it works! Thanks!
> 

Thank you for reporting back.  Please respond to 35856 <at> debbugs.gnu.org
as well next time.  I will mention your observations on UUIDs on the
grub-devel mailing list.

Regards,
Florian

Message #20 received at 35856 <at> debbugs.gnu.org (full text, mbox):

From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: Francisco Gómez <espectalll <at> kydara.com>
Cc: 35856 <at> debbugs.gnu.org
Subject: Re: bug#35856: Unable to boot on iMac, likely because of UUIDs
Date: Thu, 23 May 2019 22:24:11 +0200

On Thu, May 23, 2019 at 10:18:27PM +0200, pelzflorian (Florian Pelz) wrote:
> I will mention your observations on UUIDs on the
> grub-devel mailing list.
>

No, I will not report there.  They know enough.

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