Package: yaird
Version: 0.0.12-18
Severity: normal
init will only start when /dev/console is avalable.
This inplies the static /dev directory must contain a console entry.
This is not good, device numbers may have changed.
I have encoutered this problem when moving to an 'evms' environment,
where I had copied the rootfs to a new place and ended with an empty
/dev directory. This is not bad since udev will populate everything
after booting. However /dev/console is needed before that time.
Further investigation has shown that /etc/init.d/udev is prepared
to continue with an already mounted tmpfs on /dev.
I have solved this problem by changing the /etc/yaird/Template.cfg file
by mounting a tmpfs on /mnt/dev and creating /mnt/dev/console before
doing the 'switchroot'.
The attached patch contains this and some other 'clenups' for
file /etc/yaird/Template.cfg.
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages yaird depends on:
ii cpio 2.6-17 GNU cpio -- a program to manage ar
ii dash 0.5.3-3 The Debian Almquist Shell
ii libc6 2.3.6.ds1-4 GNU C Library: Shared libraries
ii libhtml-template-perl 2.8-1 HTML::Template : A module for usin
ii libparse-recdescent-perl 1.94.free-3 Generates recursive-descent parser
ii perl 5.8.8-6.1 Larry Wall's Practical Extraction
yaird recommends no packages.
-- no debconf information
--- /etc/yaird/Templates.cfg 2006-08-27 05:36:05.000000000 +0200
+++ Templates.cfg 2006-09-11 21:20:49.000000000 +0200
@@ -91,14 +91,17 @@
!# Kernel version: <TMPL_VAR NAME=version>.
!#
!INIT_DEBUG=
- !if [ "$INIT_DEBUG" != "" ]
- !then
- ! set -x
- !fi
+ ![ -n "$INIT_DEBUG" ] && set -x
!
!#
!# Utility functions
!#
+ !debugshell () {
+ ! [ -n "$INIT_DEBUG" ] && {
+ ! echo "Debugging opportunity, type ^D to
continue."
+ ! /bin/dash
+ ! }
+ !}
!mksymdev () {
! devfile="$1"
! sysfile="$2"
@@ -117,11 +120,7 @@
! if [ "$devpair" = "" ]
! then
! echo "Device $sysfile seems to be down."
- ! if [ "$INIT_DEBUG" != "" ]
- ! then
- ! echo "Debugging opportunity,
type ^D to continue."
- ! /bin/dash
- ! fi
+ ! debugshell
! fi
!
! maj=${devpair%:*}
@@ -136,11 +135,7 @@
!}
!
!switchroot () {
- ! if [ "$INIT_DEBUG" != "" ]
- ! then
- ! echo "Debugging opportunity, ^D to
continue."
- ! /bin/dash
- ! fi
+ ! debugshell
!
! echo "Switching root ..."
! /bin/umount -n /sys
@@ -156,7 +151,7 @@
!/bin/mount -nt proc proc /proc
!#
!# We don't set up a separate /dev file system,
- !# since rootfs is writable without problem.
+ !# since initial rootfs is writable without problem.
!#
!
!# /dev/tty is needed for eg cryptsetup.
@@ -219,10 +214,7 @@
! INIT_DEBUG=yes
! esac
!done
- !if [ "$INIT_DEBUG" != "" ]
- !then
- ! set -x
- !fi
+ ![ -n "$INIT_DEBUG" ] && set -x
END SCRIPT
END TEMPLATE
@@ -263,10 +255,7 @@
SCRIPT "/init"
BEGIN
!# activate for <TMPL_VAR NAME=target>
- !if [ ! -c /dev/evms ]
- !then
- ! /bin/mkdir /dev/evms
- !fi
+ ![ -c /dev/evms ] || /bin/mkdir /dev/evms
!/sbin/evms_activate
END SCRIPT
END TEMPLATE
@@ -481,6 +470,10 @@
BEGIN
SCRIPT "/init"
BEGIN
+ !# allow starting with empty /dev in new rootfs while
still ro
+ ![ -c /mnt/dev/console ] || {
+ ! mount -n -o size=10M,mode=0755 -t tmpfs udev
/mnt/dev
+ ! mkcdev /mnt/dev/console tty/console ;}
!switchroot "$@"
END SCRIPT
END TEMPLATE
