Gentoo Archives: gentoo-user

From: Alan McKinnon <alan.mckinnon@×××××.com>
To: gentoo-user@l.g.o
Cc: KH <gentoo-user@××××××××××××××××.de>
Subject: Re: [gentoo-user] Frozen after Upgrade
Date: Mon, 03 May 2010 15:13:56
Message-Id: 201005031710.09911.alan.mckinnon@gmail.com
In Reply to: Re: [gentoo-user] Frozen after Upgrade by KH
1 On Monday 03 May 2010 17:06:19 KH wrote:
2 > Am 03.05.2010 16:56, schrieb Alan McKinnon:
3 > > On Monday 03 May 2010 16:30:53 Colleen Beamer wrote:
4 > [...]
5 >
6 > >> I don't understand what you mean by booting to a single user
7 > >> maintenance mode. How do I do that?
8 > >
9 > > At the grub menu, select the kernel you wish to boot.
10 > > Press "e"
11 > > Move cursor to the "kernel" line
12 > > Press "e"
13 > > Move cursor to the end of the line. Append " 1" or " single"
14 > > Press<enter>
15 > > Press "b"
16 > >
17 > > This will load the kernel and run a modified start-up sequence (not the
18 > > regular init command). You get a root shell which is quite limited but
19 > > usually adequate for repairing broken system.
20 > >
21 > > In a way, it's very similar to booting into a LiveCD without having to go
22 > > and find the CD first
23 >
24 > Hi,
25 >
26 > and again I learnd something I didn't know, jet.
27 >
28 > Anyway I also would try to follow Dales advise with pressing "i" during
29 > boot.
30
31 There's all kinds of neat tricks you can do when booting or starting up. grub
32 passes parameters and options to the kernel just like your shell passes
33 parameters and options to a program you start. There's docs about it in
34 /usr/src/linux/Documentation but be warned - they are written by kernel devs
35 and most of them seem to assume the reader also knows as much as a kernel dev.
36 So it can be hard going sometimes.
37
38 A neat trick I use often is to append "init=/bin/bash" to the grub line. This
39 runs bash after the kernel is loaded, not the usual init. You can't logout as
40 normal though - try it and see :-)
41
42
43
44 --
45 alan dot mckinnon at gmail dot com