From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1Q2NO3-0000wk-6t for mharc-grub-devel@gnu.org; Wed, 23 Mar 2011 08:42:07 -0400 Received: from [140.186.70.92] (port=50331 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q2NNv-0000sO-0E for grub-devel@gnu.org; Wed, 23 Mar 2011 08:42:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q2NNs-0002OB-Nb for grub-devel@gnu.org; Wed, 23 Mar 2011 08:41:57 -0400 Received: from mail-ey0-f169.google.com ([209.85.215.169]:64493) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q2NNs-0002O1-DV for grub-devel@gnu.org; Wed, 23 Mar 2011 08:41:56 -0400 Received: by eyh6 with SMTP id 6so2230891eyh.0 for ; Wed, 23 Mar 2011 05:41:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-to:x-enigmail-version:content-type; bh=IqmQI8DgIFnycqdXp1vNWU0/EOIvG1wXBTNFnZtakLY=; b=Ysj533mAp53S+QMnq/12d8hsXp7eOh2R/4MoZavJKpeAwyB2mso3fFREIRu8spTAKb zpJz9taneTFA7+on8QDqJNBd/YtaXRP44XsmZFox+yXrXKO7caH7eJ3rtD6fITbizwlc jPV+p+Z1lDmkpdDDlJVY7qnUWrscqwJ0ZnegE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:x-enigmail-version:content-type; b=etMGZMBkqCq69LuwVLt7XYw+aNFt74yPmAwoUB7PA8k1XGyEZ6a/Bw0nBV5IsORfig oqivOGCcKqxdkWA6pHc6XRf0xAwW4M4nTjm5DKXcqtQjawvE5UiHb/hCE4iDDMIa7uXm zb14w1c+X8Yz0n8zejCJ57EwQzpbA2GjTAjuA= Received: by 10.14.48.7 with SMTP id u7mr2436491eeb.221.1300884113364; Wed, 23 Mar 2011 05:41:53 -0700 (PDT) Received: from debian.x201.phnet (etx-public-dock-248-dhcp.ethz.ch [82.130.81.248]) by mx.google.com with ESMTPS id x54sm3619964eeh.5.2011.03.23.05.41.51 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 23 Mar 2011 05:41:51 -0700 (PDT) Message-ID: <4D89EA88.30008@gmail.com> Date: Wed, 23 Mar 2011 13:41:44 +0100 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20110303 Iceowl/1.0b1 Icedove/3.0.11 MIME-Version: 1.0 To: The development of GNU GRUB References: In-Reply-To: X-Enigmail-Version: 1.0.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig21483A84B0A0D779E47BCC8B" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.215.169 Subject: Re: HP laptop crashes (not booting any more) after fixing uefi variables X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Mar 2011 12:42:06 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig21483A84B0A0D779E47BCC8B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 16.03.2011 08:48, George Buranov wrote: > > Hello everybody. > > =20 > > I have a question, that does not deal directly with grub2, however I > found this issue when investigating grub2 for UEFI. I noticed that > when I change/add new UEFI boot variables (both Boot#### and > BootOrder), after the change the system becomes unbootable. > > =20 > > Unbootable means really "brick" - even BIOS screen is not loaded. This > occurred twice on HP laptop only. I was able to fix the issue only by > hardware NVRAM rewriting in service. > > =20 > > I can't reproduce the issue on other UEFI computers.... > > =20 > > Don't you notice the same stuff when investigation UEFI booting? > Did you mean "Did we notice that EFI is crap?" The answer is "yes, all the time". This problem however isn't about EFI but about initialisation routines misinterpreting NVRAM or NVRAM writing routines being broken. Since we don't have the relevant source code we can't help you. Your only option is to contact HP and ask them to fix this bug in new firmware upgrade (but first check that no upgrade is available for your laptop). If firmware upgrade isn't an option I recommend blacklisting efivars and installing bootloaders in "removable" mode. If you give exact reference to this laptop (e.g. dmidecode output) we can blacklist it from grub-install normal installation. > > =20 > > Regards, > > Georgy > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel > =20 --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enig21483A84B0A0D779E47BCC8B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREKAAYFAk2J6ogACgkQNak7dOguQgkqBQEAj3B28c8qjlIteUOosA48xjnD rUAarHd0fu9jkKI8yDwA/1cHVUuyXAWKCI62I/kB97stYRPDV75Fjvh5x7lCqth8 =t0/L -----END PGP SIGNATURE----- --------------enig21483A84B0A0D779E47BCC8B--