~morty/fai/trunk

hidedirs="/usr/share/locale /usr/share/doc /var/lib/apt /var/cache/apt /usr/share/man /var/lib/dpkg/info /media/mirror/aptcache /media/mirror/.apt-move"

# we need FAI_CONFIGDIR, NFSROOT

. /etc/fai/fai.conf

trap "unhide_dirs;umount_dirs; mhide -u xfs reiserfs ext3" EXIT ERR

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

usage() {

cat <<-EOF

Report bugs to <fai@informatik.uni-koeln.de>.

Usage: fai-cd [OPTIONS] -m MIRRORDIR ISONAME

Create a fai CD, a bootable CD that performs the FAI.

Read the man pages pages fai-cd(8).

EOF

exit 0

}

# - - - - - - - - - - - - - - - - - - - - - - - - - -

die() {

local e=$1 # first parameter is the exit code

shift

echo "$@" # print error message

exit $e

}

# - - - - - - - - - - - - - - - - - - - - - - - - - -

mhide() {

local mode m

mode=$1

shift

for m in $@; do

module-hide $mode $m

done

}

# - - - - - - - - - - - - - - - - - - - - - - - - - -

module-hide() {

# hide or unhide a kernel module, so mkinitrd-cd can't see it

# therefore we rename the modules to XXX-<modulename.o>

# this works for 2.4 and 2.6 kernel (.o and .ko modules)

local dir module newname nam

local kdir=$NFSROOT/lib/modules/$kernelversion

mode=$1

shift

module=$1

case $mode in

-h) nam=$module;;

-u) nam=XXX-$module;;

100

esac

101

102

found=$(find $kdir -name ${nam}.o -o -name ${nam}.ko)

103

# echo "FOUND: $found"

104

if [ -z "$found" ]; then

105

# echo "$module not found."

106

return

107

108

[ -f $found ] || return

109

110

newname=$(basename $found)

111

newname=${newname/XXX-/} # substitute XXX- with nothing

112

dir=$(dirname $found)

113

114

set +e

115

case $mode in

116

-h) mv $found $dir/XXX-$newname ;;

117

-u) mv $found $dir/$newname ;;

118

esac

119

set -e

120

}

121

# - - - - - - - - - - - - - - - - - - - - - - - - - -

122

create_initrd_image() {

123

124

local size=min # full is often bigger than 2.88mb

125

local kdir=$NFSROOT/lib/modules/$kernelversion

126

127

echo "Creating initrd image with kernel $kernelversion"

128

129

sed "s/_VERSION_/$isoversion/" < /etc/mkinitrd-cd/id.txt > $NFSROOT/id.txt

130

131

# mkbimage complains if the image will be too large. So do not include some modules

132

# It would be nice if mkinitrd-cd had a config file!

133

134

mhide -h xfs reiserfs ext3

135

136

mkinitrd-cd $kdir $tmp/initrd.img $size "$isoversion"

137

mhide -u xfs reiserfs ext3

138

}

139

# - - - - - - - - - - - - - - - - - - - - - - - - - -

140

create_grub_image() {

141

142

echo -n "Creating grub boot image ..."

143

144

mkdir -p $tmp/boot/grub

145

> $tmp/boot/RUNNING_FROM_FAICD

146

cp /lib/grub/i386-pc/stage{1,2} $tmp/boot/grub

147

cp $grub_config $tmp/boot/grub/menu.lst

148

# insert date into grub menu

149

perl -pi -e "s/_VERSIONSTRING_/ $isoversion /" $tmp/boot/grub/menu.lst

150

cp $NFSROOT/boot/vmlinuz-$kernelversion $tmp/boot

151

ln -s boot/vmlinuz-$kernelversion $tmp/vmlinuz

152

tar -C $tmp -cf $tmp/make-fai-cd.tar boot vmlinuz initrd.img

153

mkbimage -d $tmp -f $tmp/make-fai-cd.tar -t $bimagesize >/dev/null 2>&1

154

# mkbimage creates the file $tmp/$bimagesize.image

155

rm $tmp/initrd.img $tmp/make-fai-cd.tar

156

mv $tmp/$bimagesize.image $tmp/boot

157

echo "done"

158

}

159

# - - - - - - - - - - - - - - - - - - - - - - - - - -

160

customize_nfsroot() {

161

162

# hide some dirs to save space and make the CD image smaller

163

local d

164

165

mkdir $tmp/empty

166

for d in $hidedirs; do

167

if [ -d $NFSROOT/$d ]; then

168

[ "$debug" ] && echo "hiding $d"

169

mount --bind $tmp/empty $NFSROOT/$d

170

171

done

172

}

173

# - - - - - - - - - - - - - - - - - - - - - - - - - -

174

unhide_dirs() {

175

176

set +e

177

for d in $hidedirs; do

178

if [ -d $NFSROOT/$d ]; then

179

[ "$debug" ] && echo "disclosing $d"

180

umount $NFSROOT/$d 2>/dev/null

181

182

done

183

set -e

184

}

185

# - - - - - - - - - - - - - - - - - - - - - - - - - -

186

umount_dirs() {

187

188

set +e

189

local d

190

local dirs="boot fai media/mirror etc/apt/sources.list"

191

for d in $dirs; do

192

umount $NFSROOT/$d 2>/dev/null

193

done

194

set -e

195

}

196

# - - - - - - - - - - - - - - - - - - - - - - - - - -

197

create_iso() {

198

199

# Create the El Torito bootable iso9660 cdrom image

200

201

echo "Mounting all needed parts"

202

203

mkdir -p $NFSROOT/media/mirror

204

mount --bind $tmp/boot $NFSROOT/boot

205

mount --bind $FAI_CONFIGDIR $NFSROOT/fai && echo "Config space $FAI_CONFIGDIR mounted"

206

mount --bind $mirrordir $NFSROOT/media/mirror && echo "Mirror $mirrordir mounted"

207

# TODO: customize /etc/apt, copy apt preferences etc.

208

209

# this will be the sources.list for the CD

210

tmp1=$(mktemp)

211

cat > $tmp1 <<EOF

212

# mirror location for fai CD, file generated by fai-cd

213

214

deb file:/media/mirror testing main contrib non-free

215

deb file:/fai/files packages/

216

EOF

217

mount --bind $tmp1 $NFSROOT/etc/apt/sources.list

218

customize_nfsroot

219

echo "Writing FAI CD-ROM image to $isoname. This may need some time."

220

mkisofs -V "$vname" -A "$aname" -log-file /dev/null -quiet -RU -b boot/$bimagesize.image -c boot.catalog -o $isoname $NFSROOT

221

echo -n "ISO image size and filename: "; du -h $isoname

222

rm $tmp/boot/$bimagesize.image $tmp1

223

unhide_dirs

224

umount_dirs

225

}

226

# - - - - - - - - - - - - - - - - - - - - - - - - - -

227

burniso() {

228

229

cdrecord -v -eject $isoname

230

}

231

# - - - - - - - - - - - - - - - - - - - - - - - - - -

232

# main program

233

234

# Parse commandline options

235

while getopts "hg:bm:" opt ; do

236

case "$opt" in

237

h) usage ;;

238

g) grub_config="$OPTARG" ;;

239

m) mirrordir="$OPTARG" ;;

240

b) burn=1 ;;

241

?) usage ;;

242

esac

243

done

244

shift $(($OPTIND - 1))

245

isoname=$1

246

247

[ "$#" -eq 0 ] && die 2 "Please specify the output file for the ISO image."

248

[ -z "$mirrordir" ] && die 4 "Please specify the directory of your mirror using -m"

249

[ -d "$mirrordir" ] || die 5 "$mirrordir is not a directory"

250

[ -f "$isoname" ] && die 3 "Outputfile $isoname already exists. Please remove it."

251

[ -f "$grub_config" ] || die 6 "Grub menu file $grub_config not found."

252

[ `id -u` -ne 0 ] && die 9 "Run this program as root."

253

254

[ -x "$(which mkinitrd-cd)" ] || die 4 "mkinitrd-cd not found. Please install package."

255

tmp=$(mktemp -t -d fai-cd.XXXXXX)

256

kernelversion=$(ls -tr $NFSROOT/boot/vmlinu?-* | tail -1 | sed -e 's#.*/vmlinuz-##')

257

258

create_initrd_image

259

create_grub_image

260

create_iso

261

rm -rf $tmp

262

[ "$burn" -eq 1 ] && burniso

263

exit 0

Older »