Gentoo Archives: gentoo-user

From: Nikos Chantziaras <realnc@×××××.de>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: Safe way to test a new kernel?
Date: Sat, 25 Feb 2012 15:24:51
Message-Id: jiaucq$9h5$1@dough.gmane.org
In Reply to: Re: [gentoo-user] Re: Safe way to test a new kernel? by Alan Mackenzie
1 On 25/02/12 16:04, Alan Mackenzie wrote:
2 > Hello, Nikos.
3 >
4 > On Sat, Feb 25, 2012 at 04:10:10AM +0200, Nikos Chantziaras wrote:
5 >> On 25/02/12 04:00, Grant wrote:
6 >>> I need to test a kernel config change on a remote system. Is there a
7 >>> safe way to do this? The fallback thing in grub has never worked for
8 >>> me. When does that ever work?
9 >
10 >> Oh crap, you said "remote system". Somehow I missed that. Ignore my
11 >> previous post since obviously accessing Grub on a remote machine would
12 >> require a hardware VNC module (if you had that, then you wouldn't have
13 >> posted about the issue in the first place, I assume.)
14 >
15 >> The way I dealt with it, is to use the "boot once" functionality of Grub:
16 >
17 >> http://weichong78.blogspot.com/2007/04/grub-test-kernel-once.html
18 >
19 >> I didn't bother with the panic handler, since I had remote hard-reset
20 >> functionality (I recommend it; it can save your day.)
21 >
22 > What is this "remote hard-reset functionality", if you don't mind me
23 > asking? Do you mean somebody on the far end of a telephone line?
24
25 No, it was a web interface button. It was instant. I assume it either
26 cut the power to the slice or a controller was hooked up to the reset
27 connector.