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@@ -1,113 +1,118
1 1 #
2 2 # Setup fstab and initramfs
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 # Install and setup fstab
9 9 install_readonly files/mount/fstab "${ETC_DIR}/fstab"
10 10
11 11 if [ "$ENABLE_USBBOOT" = true ] ; then
12 12 sed -i "s/mmcblk0p1/sda1/" "${ETC_DIR}/fstab"
13 13 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/fstab"
14 14 fi
15 15
16 16 # Add usb/sda disk root partition to fstab
17 17 if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
18 18 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
19 19 fi
20 20
21 21 # Add encrypted root partition to fstab and crypttab
22 22 if [ "$ENABLE_CRYPTFS" = true ] ; then
23 23 # Replace fstab root partition with encrypted partition mapping
24 24 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
25 25
26 26 # Add encrypted partition to crypttab and fstab
27 27 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
28 28 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETC_DIR}/crypttab"
29
30 if [ "$ENABLE_USBBOOT" = true ] ; then
31 # Add usb/sda2 disk to crypttab
32 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/crypttab"
33 fi
29 34
30 35 if [ "$ENABLE_SPLITFS" = true ] ; then
31 # Add usb/sda disk to crypttab
36 # Add usb/sda1 disk to crypttab
32 37 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
33 38 fi
34 39 fi
35 40
36 41 # Generate initramfs file
37 42 if [ "$ENABLE_INITRAMFS" = true ] ; then
38 43 if [ "$ENABLE_CRYPTFS" = true ] ; then
39 44 # Include initramfs scripts to auto expand encrypted root partition
40 45 if [ "$EXPANDROOT" = true ] ; then
41 46 install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
42 47 install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
43 48 install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
44 49 fi
45 50
46 51 if [ "$ENABLE_DHCP" = false ] ; then
47 52 # Get cdir from NET_ADDRESS e.g. 24
48 53 cdir=$(${NET_ADDRESS} | cut -d '/' -f2)
49 54
50 55 # Convert cdir ro netmask e.g. 24 to 255.255.255.0
51 56 NET_MASK=$(cdr2mask "$cdir")
52 57
53 58 # Write static ip settings to "${ETC_DIR}"/initramfs-tools/initramfs.conf
54 59 sed -i "\$aIP=${NET_ADDRESS}::${NET_GATEWAY}:${NET_MASK}:${HOSTNAME}:" "${ETC_DIR}"/initramfs-tools/initramfs.conf
55 60
56 61 # Regenerate initramfs
57 62 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
58 63 fi
59 64
60 65 if [ "$CRYPTFS_DROPBEAR" = true ]; then
61 66 if [ -n "$CRYPTFS_DROPBEAR_PUBKEY" ] && [ -f "$CRYPTFS_DROPBEAR_PUBKEY" ] ; then
62 67 install_readonly "${CRYPTFS_DROPBEAR_PUBKEY}" "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
63 68 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub >> "${ETC_DIR}"/dropbear-initramfs/authorized_keys
64 69 else
65 70 # Create key
66 71 chroot_exec /usr/bin/dropbearkey -t rsa -f /etc/dropbear-initramfs/id_rsa.dropbear
67 72
68 73 # Convert dropbear key to openssh key
69 74 chroot_exec /usr/lib/dropbear/dropbearconvert dropbear openssh /etc/dropbear-initramfs/id_rsa.dropbear /etc/dropbear-initramfs/id_rsa
70 75
71 76 # Get Public Key Part
72 77 chroot_exec /usr/bin/dropbearkey -y -f /etc/dropbear-initramfs/id_rsa.dropbear | chroot_exec tee /etc/dropbear-initramfs/id_rsa.pub
73 78
74 79 # Delete unwanted lines
75 80 sed -i '/Public/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
76 81 sed -i '/Fingerprint/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
77 82
78 83 # Trust the new key
79 84 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub > "${ETC_DIR}"/dropbear-initramfs/authorized_keys
80 85
81 86 # Save Keys - convert with putty from rsa/openssh to puttkey
82 87 cp -f "${ETC_DIR}"/dropbear-initramfs/id_rsa "${BASEDIR}"/dropbear_initramfs_key.rsa
83 88
84 89 # Get unlock script
85 90 install_exec files/initramfs/crypt_unlock.sh "${ETC_DIR}"/initramfs-tools/hooks/crypt_unlock.sh
86 91
87 92 # Enable Dropbear inside initramfs
88 93 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=y\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
89 94
90 95 # Enable Dropbear inside initramfs
91 96 sed -i "54 i sleep 5" "${R}"/usr/share/initramfs-tools/scripts/init-premount/dropbear
92 97 fi
93 98 else
94 99 # Disable SSHD inside initramfs
95 100 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
96 101 fi
97 102
98 103 # Add cryptsetup modules to initramfs
99 104 printf "#\n# CRYPTSETUP: [ y | n ]\n#\n\nCRYPTSETUP=y\n" >> "${ETC_DIR}/initramfs-tools/conf-hook"
100 105
101 106 # Dummy mapping required by mkinitramfs
102 107 echo "0 1 crypt $(echo "${CRYPTFS_CIPHER}" | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"
103 108
104 109 # Generate initramfs with encrypted root partition support
105 110 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
106 111
107 112 # Remove dummy mapping
108 113 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
109 114 else
110 115 # Generate initramfs without encrypted root partition support
111 116 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
112 117 fi
113 118 fi
@@ -1,289 +1,289
1 1 #
2 2 # Setup RPi2/3 config and cmdline
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then
9 9 # Install boot binaries from local directory
10 10 cp "${RPI_FIRMWARE_DIR}"/boot/bootcode.bin "${BOOT_DIR}"/bootcode.bin
11 11 cp "${RPI_FIRMWARE_DIR}"/boot/fixup.dat "${BOOT_DIR}"/fixup.dat
12 12 cp "${RPI_FIRMWARE_DIR}"/boot/fixup_cd.dat "${BOOT_DIR}"/fixup_cd.dat
13 13 cp "${RPI_FIRMWARE_DIR}"/boot/fixup_x.dat "${BOOT_DIR}"/fixup_x.dat
14 14 cp "${RPI_FIRMWARE_DIR}"/boot/start.elf "${BOOT_DIR}"/start.elf
15 15 cp "${RPI_FIRMWARE_DIR}"/boot/start_cd.elf "${BOOT_DIR}"/start_cd.elf
16 16 cp "${RPI_FIRMWARE_DIR}"/boot/start_x.elf "${BOOT_DIR}"/start_x.elf
17 17 else
18 18 # Create temporary directory for boot binaries
19 19 temp_dir=$(as_nobody mktemp -d)
20 20
21 21 # Install latest boot binaries from raspberry/firmware github
22 22 as_nobody wget -q -O "${temp_dir}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"
23 23 as_nobody wget -q -O "${temp_dir}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"
24 24 as_nobody wget -q -O "${temp_dir}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"
25 25 as_nobody wget -q -O "${temp_dir}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"
26 26 as_nobody wget -q -O "${temp_dir}/start.elf" "${FIRMWARE_URL}/start.elf"
27 27 as_nobody wget -q -O "${temp_dir}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"
28 28 as_nobody wget -q -O "${temp_dir}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"
29 29
30 30 # Move downloaded boot binaries
31 31 mv "${temp_dir}/"* "${BOOT_DIR}/"
32 32
33 33 # Remove temporary directory for boot binaries
34 34 rm -fr "${temp_dir}"
35 35
36 36 # Set permissions of the boot binaries
37 37 chown -R root:root "${BOOT_DIR}"
38 38 chmod -R 600 "${BOOT_DIR}"
39 39 fi
40 40
41 41 if [ "$ENABLE_KEYGEN" = true] ; then
42 42
43 43 # go to chroot/boot/
44 44 cd "${BOOT_DIR}/" || exit
45 45
46 46 # Make a copy of start.elf
47 47 cp start.elf start.elf_backup
48 48
49 49 # Remove codec licence checks - thx go to https://github.com/nucular/raspi-keygen - if ENABLE_VIDEOCORE is true, you can check codec status https://elinux.org/RPI_vcgencmd_usage
50 50 perl -pne 's/\x47\xE9362H\x3C\x18/\x47\xE9362H\x3C\x1F/g' < start.elf_backup > start.elf
51 51
52 52 # Back to base dir
53 53 cd "${WORKDIR}" || exit
54 54 fi
55 55
56 56 # Setup firmware boot cmdline
57 57 if [ "$ENABLE_USBBOOT" = true ] ; then
58 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait init=/bin/systemd"
58 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline console=tty1 rootwait init=/bin/systemd"
59 59 else
60 60 if [ "$ENABLE_SPLITFS" = true ] ; then
61 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait init=/bin/systemd"
61 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline console=tty1 rootwait init=/bin/systemd"
62 62 else
63 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait init=/bin/systemd"
63 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline console=tty1 rootwait init=/bin/systemd"
64 64 fi
65 65 fi
66 66
67 67 # Add encrypted root partition to cmdline.txt
68 68 if [ "$ENABLE_CRYPTFS" = true ] ; then
69 69 if [ "$ENABLE_SPLITFS" = true ] ; then
70 70 CMDLINE=$(echo "${CMDLINE}" | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")
71 71 else
72 72 if [ "$ENABLE_USBBOOT" = true ] ; then
73 73 CMDLINE=$(echo "${CMDLINE}" | sed "s/sda2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda2:${CRYPTFS_MAPPING}/")
74 74 else
75 75 CMDLINE=$(echo "${CMDLINE}" | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")
76 76 fi
77 77 fi
78 78 fi
79 79
80 80 # Enable Kernel messages on standard output
81 81 if [ "$ENABLE_PRINTK" = true ] ; then
82 82 install_readonly files/sysctl.d/83-rpi-printk.conf "${ETC_DIR}/sysctl.d/83-rpi-printk.conf"
83 83 fi
84 84
85 85 # Enable Kernel messages on standard output
86 86 if [ "$KERNEL_SECURITY" = true ] ; then
87 87 install_readonly files/sysctl.d/84-rpi-ASLR.conf "${ETC_DIR}/sysctl.d/84-rpi-ASLR.conf"
88 88 fi
89 89
90 90 # Install udev rule for serial alias - serial0 = console serial1=bluetooth
91 91 install_readonly files/etc/99-com.rules "${LIB_DIR}/udev/rules.d/99-com.rules"
92 92
93 93 # Remove IPv6 networking support
94 94 if [ "$ENABLE_IPV6" = false ] ; then
95 95 CMDLINE="${CMDLINE} ipv6.disable=1"
96 96 fi
97 97
98 98 # Automatically assign predictable network interface names
99 99 if [ "$ENABLE_IFNAMES" = false ] ; then
100 100 CMDLINE="${CMDLINE} net.ifnames=0"
101 101 else
102 102 CMDLINE="${CMDLINE} net.ifnames=1"
103 103 fi
104 104
105 105 # Install firmware config
106 106 install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"
107 107
108 108 # Locks CPU frequency at maximum
109 109 if [ "$ENABLE_TURBO" = true ] ; then
110 110 echo "force_turbo=1" >> "${BOOT_DIR}/config.txt"
111 111 # helps to avoid sdcard corruption when force_turbo is enabled.
112 112 echo "boot_delay=1" >> "${BOOT_DIR}/config.txt"
113 113 fi
114 114
115 115 if [ "$RPI_MODEL" = 0 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then
116 116
117 117 # Bluetooth enabled
118 118 if [ "$ENABLE_BLUETOOTH" = true ] ; then
119 119 # Create temporary directory for Bluetooth sources
120 120 temp_dir=$(as_nobody mktemp -d)
121 121
122 122 # Fetch Bluetooth sources
123 123 as_nobody git -C "${temp_dir}" clone "${BLUETOOTH_URL}"
124 124
125 125 # Copy downloaded sources
126 126 mv "${temp_dir}/pi-bluetooth" "${R}/tmp/"
127 127
128 128 # Bluetooth firmware from arch aur https://aur.archlinux.org/packages/pi-bluetooth/
129 129 as_nobody wget -q -O "${R}/tmp/pi-bluetooth/LICENCE.broadcom_bcm43xx" https://aur.archlinux.org/cgit/aur.git/plain/LICENCE.broadcom_bcm43xx?h=pi-bluetooth
130 130 as_nobody wget -q -O "${R}/tmp/pi-bluetooth/BCM43430A1.hcd" https://aur.archlinux.org/cgit/aur.git/plain/BCM43430A1.hcd?h=pi-bluetooth
131 131
132 132 # Set permissions
133 133 chown -R root:root "${R}/tmp/pi-bluetooth"
134 134
135 135 # Install tools
136 136 install_readonly "${R}/tmp/pi-bluetooth/usr/bin/btuart" "${R}/usr/bin/btuart"
137 137 install_readonly "${R}/tmp/pi-bluetooth/usr/bin/bthelper" "${R}/usr/bin/bthelper"
138 138
139 139 # make scripts executable
140 140 chmod +x "${R}/usr/bin/bthelper"
141 141 chmod +x "${R}/usr/bin/btuart"
142 142
143 143 # Install bluetooth udev rule
144 144 install_readonly "${R}/tmp/pi-bluetooth/lib/udev/rules.d/90-pi-bluetooth.rules" "${LIB_DIR}/udev/rules.d/90-pi-bluetooth.rules"
145 145
146 146 # Install Firmware Flash file and apropiate licence
147 147 mkdir -p "$BLUETOOTH_FIRMWARE_DIR"
148 148 install_readonly "${R}/tmp/pi-bluetooth/LICENCE.broadcom_bcm43xx" "${BLUETOOTH_FIRMWARE_DIR}/LICENCE.broadcom_bcm43xx"
149 149 install_readonly "${R}/tmp/pi-bluetooth/BCM43430A1.hcd" "${BLUETOOTH_FIRMWARE_DIR}/LICENCE.broadcom_bcm43xx"
150 150 install_readonly "${R}/tmp/pi-bluetooth/debian/pi-bluetooth.bthelper@.service" "${ETC_DIR}/systemd/system/pi-bluetooth.bthelper@.service"
151 151 install_readonly "${R}/tmp/pi-bluetooth/debian/pi-bluetooth.hciuart.service" "${ETC_DIR}/systemd/system/pi-bluetooth.hciuart.service"
152 152
153 153 # Remove temporary directories
154 154 rm -fr "${temp_dir}"
155 155 rm -fr "${R}"/tmp/pi-bluetooth
156 156
157 157 # Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore UART0/ttyAMA0 over GPIOs 14 & 15. Slow Bluetooth and slow cpu. Use /dev/ttyS0 instead of /dev/ttyAMA0
158 158 if [ "$ENABLE_MINIUART_OVERLAY" = true ] ; then
159 159
160 160 # set overlay to swap ttyAMA0 and ttyS0
161 161 echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"
162 162
163 163 # if force_turbo didn't lock cpu at high speed, lock it at low speed (XOR logic) or miniuart will be broken
164 164 if [ "$ENABLE_TURBO" = false ] ; then
165 165 echo "core_freq=250" >> "${BOOT_DIR}/config.txt"
166 166 fi
167 167 fi
168 168
169 169 # Activate services
170 170 chroot_exec systemctl enable pi-bluetooth.hciuart.service
171 171
172 172 else # if ENABLE_BLUETOOTH = false
173 173 # set overlay to disable bluetooth
174 174 echo "dtoverlay=pi3-disable-bt" >> "${BOOT_DIR}/config.txt"
175 175 fi # ENABLE_BLUETOOTH end
176 176 fi
177 177
178 178 # may need sudo systemctl disable hciuart
179 179 if [ "$ENABLE_CONSOLE" = true ] ; then
180 180 echo "enable_uart=1" >> "${BOOT_DIR}/config.txt"
181 181 # add string to cmdline
182 182 CMDLINE="${CMDLINE} console=serial0,115200"
183 183
184 184 # Enable serial console systemd style
185 185 chroot_exec systemctl enable serial-getty\@serial0.service
186 186 else
187 187 echo "enable_uart=0" >> "${BOOT_DIR}/config.txt"
188 188 fi
189 189
190 190 if [ "$ENABLE_SYSTEMDSWAP" = true ] ; then
191 191 # Create temporary directory for systemd-swap sources
192 192 temp_dir=$(as_nobody mktemp -d)
193 193
194 194 # Fetch systemd-swap sources
195 195 as_nobody git -C "${temp_dir}" clone "${SYSTEMDSWAP_URL}"
196 196
197 197 # Copy downloaded systemd-swap sources
198 198 mv "${temp_dir}/systemd-swap" "${R}/tmp/"
199 199
200 200 # Change into downloaded src dir
201 201 cd "${R}/tmp/systemd-swap" || exit
202 202
203 203 # Build package
204 204 bash ./package.sh debian
205 205
206 206 # Change back into script root dir
207 207 cd "${WORKDIR}" || exit
208 208
209 209 # Set permissions of the systemd-swap sources
210 210 chown -R root:root "${R}/tmp/systemd-swap"
211 211
212 212 # Install package - IMPROVE AND MAKE IT POSSIBLE WITHOUT VERSION NR.
213 213 chroot_exec dpkg -i /tmp/systemd-swap/systemd-swap_4.0.1_any.deb
214 214
215 215 # Enable service
216 216 chroot_exec systemctl enable systemd-swap
217 217
218 218 # Remove temporary directory for systemd-swap sources
219 219 rm -fr "${temp_dir}"
220 220 else
221 221 # Enable ZSWAP in cmdline if systemd-swap is not used
222 222 if [ "$KERNEL_ZSWAP" = true ] ; then
223 223 CMDLINE="${CMDLINE} zswap.enabled=1 zswap.max_pool_percent=25 zswap.compressor=lz4"
224 224 fi
225 225 fi
226 226 if [ "$KERNEL_SECURITY" = true ] ; then
227 227 CMDLINE="${CMDLINE} apparmor=1 security=apparmor"
228 228 fi
229 229
230 230 # Install firmware boot cmdline
231 231 echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"
232 232
233 233 # Setup minimal GPU memory allocation size: 16MB (no X)
234 234 if [ "$ENABLE_MINGPU" = true ] ; then
235 235 echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"
236 236 fi
237 237
238 238 # Setup boot with initramfs
239 239 if [ "$ENABLE_INITRAMFS" = true ] ; then
240 240 echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"
241 241 fi
242 242
243 243 # Create firmware configuration and cmdline symlinks
244 244 ln -sf firmware/config.txt "${R}/boot/config.txt"
245 245 ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"
246 246
247 247 # Install and setup kernel modules to load at boot
248 248 mkdir -p "${LIB_DIR}/modules-load.d/"
249 249 install_readonly files/modules/rpi2.conf "${LIB_DIR}/modules-load.d/rpi2.conf"
250 250
251 251 # Load hardware random module at boot
252 252 if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then
253 253 sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${LIB_DIR}/modules-load.d/rpi2.conf"
254 254 fi
255 255
256 256 # Load sound module at boot
257 257 if [ "$ENABLE_SOUND" = true ] ; then
258 258 sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${LIB_DIR}/modules-load.d/rpi2.conf"
259 259 else
260 260 echo "dtparam=audio=off" >> "${BOOT_DIR}/config.txt"
261 261 fi
262 262
263 263 # Enable I2C interface
264 264 if [ "$ENABLE_I2C" = true ] ; then
265 265 echo "dtparam=i2c_arm=on" >> "${BOOT_DIR}/config.txt"
266 266 sed -i "s/^# i2c-bcm2708/i2c-bcm2708/" "${LIB_DIR}/modules-load.d/rpi2.conf"
267 267 sed -i "s/^# i2c-dev/i2c-dev/" "${LIB_DIR}/modules-load.d/rpi2.conf"
268 268 fi
269 269
270 270 # Enable SPI interface
271 271 if [ "$ENABLE_SPI" = true ] ; then
272 272 echo "dtparam=spi=on" >> "${BOOT_DIR}/config.txt"
273 273 echo "spi-bcm2708" >> "${LIB_DIR}/modules-load.d/rpi2.conf"
274 274 if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ]; then
275 275 sed -i "s/spi-bcm2708/spi-bcm2835/" "${LIB_DIR}/modules-load.d/rpi2.conf"
276 276 fi
277 277 fi
278 278
279 279 # Disable RPi2/3 under-voltage warnings
280 280 if [ -n "$DISABLE_UNDERVOLT_WARNINGS" ] ; then
281 281 echo "avoid_warnings=${DISABLE_UNDERVOLT_WARNINGS}" >> "${BOOT_DIR}/config.txt"
282 282 fi
283 283
284 284 # Install kernel modules blacklist
285 285 mkdir -p "${ETC_DIR}/modprobe.d/"
286 286 install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"
287 287
288 288 # Install sysctl.d configuration files
289 289 install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"
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