From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1S1GcU-0000bN-7Q for garchives@archives.gentoo.org; Sat, 25 Feb 2012 12:20:58 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 00549E0B2E; Sat, 25 Feb 2012 12:20:39 +0000 (UTC) Received: from mail-ww0-f53.google.com (mail-ww0-f53.google.com [74.125.82.53]) by pigeon.gentoo.org (Postfix) with ESMTP id A15B5E0B0C for ; Sat, 25 Feb 2012 12:19:00 +0000 (UTC) Received: by wgbdr1 with SMTP id dr1so867920wgb.10 for ; Sat, 25 Feb 2012 04:18:59 -0800 (PST) Received-SPF: pass (google.com: domain of michaelkintzios@gmail.com designates 10.180.86.198 as permitted sender) client-ip=10.180.86.198; Authentication-Results: mr.google.com; spf=pass (google.com: domain of michaelkintzios@gmail.com designates 10.180.86.198 as permitted sender) smtp.mail=michaelkintzios@gmail.com; dkim=pass header.i=michaelkintzios@gmail.com Received: from mr.google.com ([10.180.86.198]) by 10.180.86.198 with SMTP id r6mr3622541wiz.22.1330172339972 (num_hops = 1); Sat, 25 Feb 2012 04:18:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:reply-to:to:subject:date:user-agent:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=OcmZ1dqDvlqZ/czdyHKOv74l6Is5NPpeTLjogr1nmMU=; b=bpFFep+Weqq3znoUhApD6pqQCZ70GzlbZmfXZPajPEbL50WLcrzoSaf37FM7wEjK0K VqhrYkwJjdn6jWoVD8jfTQqP4Yu7PBjCXvJT3eWTtqEyCige4tk4PCqsaHY319myhGf7 0/hWEzGsK6GTkS81PTDP73u4+/soyHQRgKGpw= Received: by 10.180.86.198 with SMTP id r6mr2855355wiz.22.1330172339913; Sat, 25 Feb 2012 04:18:59 -0800 (PST) Received: from dell_xps.localnet (230.3.169.217.in-addr.arpa. [217.169.3.230]) by mx.google.com with ESMTPS id cs4sm23346788wib.8.2012.02.25.04.18.58 (version=SSLv3 cipher=OTHER); Sat, 25 Feb 2012 04:18:59 -0800 (PST) From: Mick To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Safe way to test a new kernel? Date: Sat, 25 Feb 2012 12:18:49 +0000 User-Agent: KMail/1.13.7 (Linux/3.2.1-gentoo-r2; KDE/4.7.4; x86_64; ; ) References: In-Reply-To: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1977618.MpPlsMACFb"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201202251218.59928.michaelkintzios@gmail.com> X-Archives-Salt: b493a8be-73ab-4b00-a383-8b43d8949447 X-Archives-Hash: 969191ae775688b4127799108f6d07a6 --nextPart1977618.MpPlsMACFb Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Saturday 25 Feb 2012 02:32:49 Pandu Poluan wrote: > On Feb 25, 2012 9:14 AM, "Grant" wrote: > > >> I need to test a kernel config change on a remote system. Is there a > > >> safe way to do this? The fallback thing in grub has never worked for > > >> me. When does that ever work? > > >=20 > > > You can press ESC in the Grub screen and it will take you to text-only >=20 > mode. >=20 > > > There, you select an entry, press "e" and edit it. Press ENTER when >=20 > you're >=20 > > > finished, and then press "b" to boot your modified entry. > > >=20 > > > That way, you can boot whatever kernel you want if the current one >=20 > doesn't >=20 > > > work. > >=20 > > I can't do that remotely though. I'm probably asking for something > > that doesn't exist. > >=20 > > - Grant >=20 > Situations like these that made me decide with great conviction to always > deploy my servers virtualized, even if the box in question will only host= a > single VM. >=20 > Now, if I lost my intelligence for a couple of seconds and somehow ended = up > with a VM that's no longer accessible remotely, I just connect to the > virtual console. >=20 > The flip side? Now I'm getting too daring/careless, and the uptime now > drops below my (self-imposed) target of 99.99% :-P What do you do when you need to upgrade the host, rather than the guest? =2D-=20 Regards, Mick --nextPart1977618.MpPlsMACFb Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iEUEABECAAYFAk9I0bMACgkQVTDTR3kpaLZqjACYidO9i5Z1goqN71kagJ1g9wPB 4wCeIgqtAaeV0W1XY3F9McTcgWQAqYY= =8OIU -----END PGP SIGNATURE----- --nextPart1977618.MpPlsMACFb--