##// END OF EJS Templates
Added: KERNEL_REDUCE - less than 128MB used space, Added: REDUCE_ parameters
Jan Wagner -
r76:50170a27d411
parent child
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@@ -0,0 +1,72
1 #
2 # Reduce system disk usage
3 #
4
5 # Load utility functions
6 . ./functions.sh
7
8 # Reduce the image size by various operations
9 if [ "$ENABLE_REDUCE" = true ] ; then
10 if [ "$REDUCE_APT" = true ] ; then
11 # Install dpkg configuration file
12 if [ "$REDUCE_DOC" = true ] || [ "$REDUCE_MAN" = true ] ; then
13 install_readonly files/dpkg/01nodoc "$R/etc/dpkg/dpkg.cfg.d/01nodoc"
14 fi
15
16 # Install APT configuration files
17 install_readonly files/apt/02nocache "$R/etc/apt/apt.conf.d/02nocache"
18 install_readonly files/apt/03compress "$R/etc/apt/apt.conf.d/03compress"
19 install_readonly files/apt/04norecommends "$R/etc/apt/apt.conf.d/04norecommends"
20
21 # Remove APT cache files
22 rm -fr "$R/var/cache/apt/pkgcache.bin"
23 rm -fr "$R/var/cache/apt/srcpkgcache.bin"
24 fi
25
26 # Remove all doc files
27 if [ "$REDUCE_DOC" = true ] ; then
28 find "$R/usr/share/doc" -depth -type f ! -name copyright | xargs rm || true
29 find "$R/usr/share/doc" -empty | xargs rmdir || true
30 fi
31
32 # Remove all man pages and info files
33 if [ "$REDUCE_MAN" = true ] ; then
34 rm -rf "$R/usr/share/man" "$R/usr/share/groff" "$R/usr/share/info" "$R/usr/share/lintian" "$R/usr/share/linda" "$R/var/cache/man"
35 fi
36
37 # Remove all locale translation files
38 if [ "$REDUCE_LOCALE" = true ] ; then
39 find "$R/usr/share/locale" -mindepth 1 -maxdepth 1 ! -name 'en' | xargs rm -r
40 fi
41
42 # Remove hwdb PCI device classes (experimental)
43 if [ "$REDUCE_HWDB" = true ] ; then
44 rm -fr "/lib/udev/hwdb.d/20-pci-*"
45 fi
46
47 # Replace bash shell by dash shell (experimental)
48 if [ "$REDUCE_BASH" = true ] ; then
49 echo "Yes, do as I say!" | chroot_exec apt-get purge -qq -y --force-yes bash
50 chroot_exec update-alternatives --install /bin/bash bash /bin/dash 100
51 fi
52
53 # Remove sound utils and libraries
54 if [ "$ENABLE_SOUND" = false ] ; then
55 chroot_exec apt-get -qq -y --force-yes purge alsa-utils libsamplerate0 libasound2 libasound2-data
56 fi
57
58 # Re-install tools for managing kernel moduless
59 chroot_exec apt-get -qq -y --force-yes install module-init-tools
60
61 # Remove GPU kernels
62 if [ "$ENABLE_MINGPU" = true ] ; then
63 rm -f "$R/boot/firmware/start.elf"
64 rm -f "$R/boot/firmware/fixup.dat"
65 rm -f "$R/boot/firmware/start_x.elf"
66 rm -f "$R/boot/firmware/fixup_x.dat"
67 fi
68
69 # Clean APT list of repositories
70 rm -fr "$R/var/lib/apt/lists/*"
71 chroot_exec apt-get -qq -y update
72 fi
@@ -131,7 +131,7 Install a user defined window manager for the X Window System. To make sure all
131 131 Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.
132 132
133 133 ##### `ENABLE_REDUCE`=false
134 Reduce the disk usage by deleting all man pages and doc files (harsh). APT will be configured to use compressed package repository lists and no package caching files. If `ENABLE_MINGPU`=true unnecessary start.elf and fixup.dat files will also be removed from the boot partition. This will make it possible to generate output OS images with about 160MB of used disk space. It's recommended to use this parameter in combination with `ENABLE_MINBASE`=true.
134 Reduce the disk usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.
135 135
136 136 ##### `ENABLE_UBOOT`=false
137 137 Replace default RPi2 second stage bootloader (bootcode.bin) with U-Boot bootloader. U-Boot can boot images via the network using the BOOTP/TFTP protocol.
@@ -165,6 +165,9 Path to a directory with scripts that should be run in the chroot before the ima
165 165 ##### `BUILD_KERNEL`=false
166 166 Build and install the latest RPi2 Linux kernel. Currently only the default RPi2 kernel configuration is used. Detailed configuration parameters for customizing the kernel and minor bug fixes still need to get implemented. feel free to help.
167 167
168 ##### `KERNEL_REDUCE`=false
169 Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).
170
168 171 ##### `KERNEL_THREADS`=1
169 172 Number of parallel kernel building threads. If the parameter is left untouched the script will automatically determine the number of CPU cores to set the number of parallel threads to speed the kernel compilation.
170 173
@@ -189,6 +192,33 Run `make bcm2709_defconfig` (and optional `make menuconfig`) to configure the k
189 192 ##### `KERNELSRC_PREBUILT`=false
190 193 With this parameter set to true the script expects the existing kernel sources directory to be already successfully cross-compiled. The parameters `KERNELSRC_CLEAN`, `KERNELSRC_CONFIG` and `KERNEL_MENUCONFIG` are ignored and no kernel compilation tasks are performed.
191 194
195 #### Reduce disk usage:
196 The following list of parameters is ignored if `ENABLE_REDUCE`=false.
197
198 ##### `REDUCE_APT`=true
199 Configure APT to use compressed package repository lists and no package caching files.
200
201 ##### `REDUCE_DOC`=true
202 Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.
203
204 ##### `REDUCE_MAN`=true
205 Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.
206
207 ##### `REDUCE_VIM`=true
208 Replace `vim-tiny` package by `levee` a tiny vim clone.
209
210 ##### `REDUCE_BASH`=false
211 Remove `bash` package and switch to `dash` shell (experimental).
212
213 ##### `REDUCE_HWDB`=true
214 Remove PCI related hwdb files (experimental).
215
216 ##### `REDUCE_SSHD`=true
217 Replace `openssh-server` with dropbear.
218
219 ##### `REDUCE_LOCALE`=true
220 Remove all `locale` translation files.
221
192 222 ## Understanding the script
193 223 The functions of this script that are required for the different stages of the bootstrapping are split up into single files located inside the `bootstrap.d` directory. During the bootstrapping every script in this directory gets executed in lexicographical order:
194 224
@@ -7,7 +7,7
7 7
8 8 # Base debootstrap (unpack only)
9 9 if [ "$ENABLE_MINBASE" = true ] ; then
10 http_proxy=${APT_PROXY} debootstrap --arch="${RELEASE_ARCH}" --variant=minbase --foreign --include="${APT_INCLUDES}" "${RELEASE}" "$R" "http://${APT_SERVER}/debian"
10 http_proxy=${APT_PROXY} debootstrap --arch="${RELEASE_ARCH}" --foreign --variant=minbase --include="${APT_INCLUDES}" "${RELEASE}" "$R" "http://${APT_SERVER}/debian"
11 11 else
12 12 http_proxy=${APT_PROXY} debootstrap --arch="${RELEASE_ARCH}" --foreign --include="${APT_INCLUDES}" "${RELEASE}" "$R" "http://${APT_SERVER}/debian"
13 13 fi
@@ -29,7 +29,44 if [ "$BUILD_KERNEL" = true ] ; then
29 29 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
30 30 fi
31 31
32 # Configure and build kernel
32 33 if [ "$KERNELSRC_PREBUILT" = false ] ; then
34 # Remove device, network and filesystem drivers from kernel configuration
35 if [ "$KERNEL_REDUCE" = true ] ; then
36 make -C "$R/usr/src/linux" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
37 sed -i\
38 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
39 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
40 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
41 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
42 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
43 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
44 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
45 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
46 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
47 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
48 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
49 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
50 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
51 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
52 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
53 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
54 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
55 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
56 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
57 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
58 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
59 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
60 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
61 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
62 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
63 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
64 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
65 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
66 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
67 "$R/usr/src/linux/.config"
68 fi
69
33 70 if [ "$KERNELSRC_CONFIG" = true ] ; then
34 71 # Load default raspberry kernel configuration
35 72 make -C "$R/usr/src/linux" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
@@ -62,7 +99,7 if [ "$BUILD_KERNEL" = true ] ; then
62 99 fi
63 100
64 101 # Install kernel headers
65 if [ "$KERNEL_HEADERS" = true ] ; then
102 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
66 103 make -C "$R/usr/src/linux" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
67 104 fi
68 105
@@ -9,7 +9,7
9 9 cat files/firstboot/10-begin.sh > "$R/etc/rc.firstboot"
10 10
11 11 # Ensure openssh server host keys are regenerated on first boot
12 if [ "$ENABLE_SSHD" = true ] ; then
12 if [ "$ENABLE_SSHD" = true ] && [ "$ENABLE_REDUCE" = false ]; then
13 13 cat files/firstboot/21-generate-ssh-keys.sh >> "$R/etc/rc.firstboot"
14 14 rm -f "$R/etc/ssh/ssh_host_*"
15 15 fi
@@ -1,4 +1,13
1 1 logger -t "rc.firstboot" "Creating /etc/resolv.conf symlink"
2 if [ -f "/run/systemd/resolve/resolv.conf" ] ; then
2
3
4 # Check if systemd resolve directory exists
5 if [ -d "/run/systemd/resolve" ] ; then
6 # Create resolv.conf file if it does not exists
7 if [ ! -f "/run/systemd/resolve/resolv.conf" ] ; then
8 touch /run/systemd/resolve/resolv.conf
9 fi
10
11 # Create symlink to /etc/reolv.conf
3 12 ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
4 13 fi
@@ -15,6 +15,12
15 15 # Copyright (C) 2015 Luca Falavigna <dktrkranz@debian.org>
16 16 ########################################################################
17 17
18 # Are we running as root?
19 if [ "$(id -u)" -ne "0" ] ; then
20 echo "error: this script must be executed with root privileges!"
21 exit 1
22 fi
23
18 24 # Check if ./functions.sh script exists
19 25 if [ ! -r "./functions.sh" ] ; then
20 26 echo "error: './functions.sh' required script not found. please reinstall the latest script version!"
@@ -38,9 +44,10 COLLABORA_KERNEL=${COLLABORA_KERNEL:=3.18.0-trunk-rpi2}
38 44 KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcm2709_defconfig}
39 45 QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-arm-static}
40 46
41 # Build settings
47 # Build directories
42 48 BASEDIR=$(pwd)/images/${RELEASE}
43 49 BUILDDIR=${BASEDIR}/build
50 R=${BUILDDIR}/chroot
44 51
45 52 # General settings
46 53 HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}}
@@ -59,7 +66,6 XKB_OPTIONS=${XKB_OPTIONS:=""}
59 66 ENABLE_DHCP=${ENABLE_DHCP:=true}
60 67
61 68 # Network settings (static)
62 # only used on ENABLE_DHCP=false
63 69 NET_ADDRESS=${NET_ADDRESS:=""}
64 70 NET_GATEWAY=${NET_GATEWAY:=""}
65 71 NET_DNS_1=${NET_DNS_1:=""}
@@ -98,6 +104,7 ENABLE_SPLITFS=${ENABLE_SPLITFS:=false}
98 104
99 105 # Kernel compilation settings
100 106 BUILD_KERNEL=${BUILD_KERNEL:=false}
107 KERNEL_REDUCE=${KERNEL_REDUCE:=false}
101 108 KERNEL_THREADS=${KERNEL_THREADS:=1}
102 109 KERNEL_HEADERS=${KERNEL_HEADERS:=true}
103 110 KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false}
@@ -109,62 +116,40 KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false}
109 116 KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true}
110 117 KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false}
111 118
112 # Image chroot path
113 R=${BUILDDIR}/chroot
119 # Reduce disk usage settings
120 REDUCE_APT=${REDUCE_APT:=true}
121 REDUCE_DOC=${REDUCE_DOC:=true}
122 REDUCE_MAN=${REDUCE_MAN:=true}
123 REDUCE_VIM=${REDUCE_VIM:=true}
124 REDUCE_BASH=${REDUCE_BASH:=false}
125 REDUCE_HWDB=${REDUCE_HWDB:=true}
126 REDUCE_SSHD=${REDUCE_SSHD:=true}
127 REDUCE_LOCALE=${REDUCE_LOCALE:=true}
128
129 # Chroot scripts directory
114 130 CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""}
115 131
116 # Packages required for bootstrapping
117 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core"
118
119 # Missing packages that need to be installed
120 MISSING_PACKAGES=""
121
122 132 # Packages required in the chroot build environment
123 133 APT_INCLUDES=${APT_INCLUDES:=""}
124 134 APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo"
125 135
126 set +x
127
128 # Are we running as root?
129 if [ "$(id -u)" -ne "0" ] ; then
130 echo "error: this script must be executed with root privileges!"
131 exit 1
132 fi
133
134 # Check if ./bootstrap.d directory exists
135 if [ ! -d "./bootstrap.d/" ] ; then
136 echo "error: './bootstrap.d' required directory not found. please reinstall the latest script version!"
137 exit 1
138 fi
139
140 # Check if ./files directory exists
141 if [ ! -d "./files/" ] ; then
142 echo "error: './files' required directory not found. please reinstall the latest script version!"
143 exit 1
144 fi
145
146 # Check if specified KERNELSRC_DIR directory exists
147 if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then
148 echo "error: ${KERNELSRC_DIR} (KERNELSRC_DIR) specified directory not found!"
149 exit 1
150 fi
136 # Packages required for bootstrapping
137 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core"
138 MISSING_PACKAGES=""
151 139
152 # Check if specified CHROOT_SCRIPTS directory exists
153 if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then
154 echo "error: ${CHROOT_SCRIPTS} (CHROOT_SCRIPTS) specified directory not found!"
155 exit 1
156 fi
140 set +x
157 141
158 142 # Add packages required for kernel cross compilation
159 143 if [ "$BUILD_KERNEL" = true ] ; then
160 144 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf"
145 fi
161 146
162 if [ "$KERNEL_MENUCONFIG" = true ] ; then
163 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} ncurses-dev"
164 fi
147 # Add libncurses5 to enable kernel menuconfig
148 if [ "$KERNEL_MENUCONFIG" = true ] ; then
149 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses5-dev"
165 150 fi
166 151
167 # Check if all required packages are installed
152 # Check if all required packages are installed on the build system
168 153 for package in $REQUIRED_PACKAGES ; do
169 154 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
170 155 MISSING_PACKAGES="${MISSING_PACKAGES} $package"
@@ -178,14 +163,36 if [ -n "$MISSING_PACKAGES" ] ; then
178 163
179 164 echo -n "\ndo you want to install the missing packages right now? [y/n] "
180 165 read confirm
181 if [ "$confirm" != "y" ] ; then
182 exit 1
183 fi
166 [ "$confirm" != "y" ] && exit 1
184 167 fi
185 168
186 169 # Make sure all required packages are installed
187 170 apt-get -qq -y install ${REQUIRED_PACKAGES}
188 171
172 # Check if ./bootstrap.d directory exists
173 if [ ! -d "./bootstrap.d/" ] ; then
174 echo "error: './bootstrap.d' required directory not found!"
175 exit 1
176 fi
177
178 # Check if ./files directory exists
179 if [ ! -d "./files/" ] ; then
180 echo "error: './files' required directory not found!"
181 exit 1
182 fi
183
184 # Check if specified KERNELSRC_DIR directory exists
185 if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then
186 echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!"
187 exit 1
188 fi
189
190 # Check if specified CHROOT_SCRIPTS directory exists
191 if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then
192 echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!"
193 exit 1
194 fi
195
189 196 # Don't clobber an old build
190 197 if [ -e "$BUILDDIR" ] ; then
191 198 echo "error: directory ${BUILDDIR} already exists, not proceeding"
@@ -197,15 +204,10 mkdir -p "$R"
197 204
198 205 # Check if build directory has enough of free disk space >512MB
199 206 if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "524288" ] ; then
200 echo "error: ${BUILDDIR} not enough space left on this partition to generate the output image!"
207 echo "error: ${BUILDDIR} not enough space left to generate the output image!"
201 208 exit 1
202 209 fi
203 210
204 # Warn if build directory has low free disk space <1024MB
205 if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "1048576" ] ; then
206 echo `df -h --output=avail ${BUILDDIR} | sed "1 s|.*Avail|warning: $partition is low on free space:|"`
207 fi
208
209 211 set -x
210 212
211 213 # Call "cleanup" function on various signals and errors
@@ -267,30 +269,45 if [ "$ENABLE_XORG" = true ] ; then
267 269 APT_INCLUDES="${APT_INCLUDES},xorg"
268 270 fi
269 271
270 # Set KERNELSRC_CONFIG=true
272 # Replace selected packages with smaller clones
273 if [ "$ENABLE_REDUCE" = true ] ; then
274 # Add levee package instead of vim-tiny
275 if [ "$REDUCE_VIM" = true ] ; then
276 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")"
277 fi
278
279 # Add dropbear package instead of openssh-server
280 if [ "$REDUCE_SSHD" = true ] ; then
281 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/openssh-server/dropbear/")"
282 fi
283 fi
284
285 # Configure kernel sources if no KERNELSRC_DIR
271 286 if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then
272 287 KERNELSRC_CONFIG=true
273 288 fi
274 289
275 ## MAIN bootstrap
290 # Configure reduced kernel
291 if [ "$KERNEL_REDUCE" = true ] ; then
292 KERNELSRC_CONFIG=false
293 fi
294
295 # Execute bootstrap scripts
276 296 for SCRIPT in bootstrap.d/*.sh; do
277 # Execute bootstrap scripts (lexicographical order)
278 297 head -n 3 "$SCRIPT"
279 298 . "$SCRIPT"
280 299 done
281 300
282 ## Custom bootstrap scripts
301 ## Execute custom bootstrap scripts
283 302 if [ -d "custom.d" ] ; then
284 # Execute custom bootstrap scripts (lexicographical order)
285 303 for SCRIPT in custom.d/*.sh; do
286 304 . "$SCRIPT"
287 305 done
288 306 fi
289 307
290 # Invoke custom scripts
308 # Execute custom scripts inside the chroot
291 309 if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then
292 310 cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts"
293 # Execute scripts inside the chroot (lexicographical order)
294 311 chroot_exec /bin/bash -x <<'EOF'
295 312 for SCRIPT in /chroot_scripts/* ; do
296 313 if [ -f $SCRIPT -a -x $SCRIPT ] ; then
@@ -304,41 +321,6 fi
304 321 # Remove apt-utils
305 322 chroot_exec apt-get purge -qq -y --force-yes apt-utils
306 323
307 # Reduce the image size by removing and compressing
308 if [ "$ENABLE_REDUCE" = true ] ; then
309 # Install dpkg configuration fragment file
310 install_readonly files/dpkg/01nodoc "$R/etc/dpkg/dpkg.cfg.d/01nodoc"
311
312 # Install APT configuration fragment files
313 install_readonly files/apt/02nocache "$R/etc/apt/apt.conf.d/02nocache"
314 install_readonly files/apt/03compress "$R/etc/apt/apt.conf.d/03compress"
315 install_readonly files/apt/04norecommends "$R/etc/apt/apt.conf.d/04norecommends"
316
317 # Remove APT cache files
318 rm -fr "$R/var/cache/apt/pkgcache.bin"
319 rm -fr "$R/var/cache/apt/srcpkgcache.bin"
320
321 # Remove all doc and man files
322 find "$R/usr/share/doc" -depth -type f ! -name copyright | xargs rm || true
323 find "$R/usr/share/doc" -empty | xargs rmdir || true
324 rm -rf "$R/usr/share/man" "$R/usr/share/groff" "$R/usr/share/info" "$R/usr/share/lintian" "$R/usr/share/linda" "$R/var/cache/man"
325
326 # Remove all translation files
327 find "$R/usr/share/locale" -mindepth 1 -maxdepth 1 ! -name 'en' | xargs rm -r
328
329 # Clean APT list of repositories
330 rm -fr "$R/var/lib/apt/lists/*"
331 chroot_exec apt-get -qq -y update
332
333 # Remove GPU kernels
334 if [ "$ENABLE_MINGPU" = true ] ; then
335 rm -f "$R/boot/firmware/start.elf"
336 rm -f "$R/boot/firmware/fixup.dat"
337 rm -f "$R/boot/firmware/start_x.elf"
338 rm -f "$R/boot/firmware/fixup_x.dat"
339 fi
340 fi
341
342 324 # APT Cleanup
343 325 chroot_exec apt-get -y clean
344 326 chroot_exec apt-get -y autoclean
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