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1 | 1 | # |
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2 | 2 | # Setup RPi2/3 config and cmdline |
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3 | 3 | # |
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4 | 4 | |
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5 | 5 | # Load utility functions |
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6 | 6 | . ./functions.sh |
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7 | 7 | |
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8 | 8 | if [ "$BUILD_KERNEL" = true ] ; then |
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9 | 9 | if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then |
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10 | 10 | # Install boot binaries from local directory |
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11 | 11 | cp ${RPI_FIRMWARE_DIR}/boot/bootcode.bin ${BOOT_DIR}/bootcode.bin |
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12 | 12 | cp ${RPI_FIRMWARE_DIR}/boot/fixup.dat ${BOOT_DIR}/fixup.dat |
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13 | 13 | cp ${RPI_FIRMWARE_DIR}/boot/fixup_cd.dat ${BOOT_DIR}/fixup_cd.dat |
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14 | 14 | cp ${RPI_FIRMWARE_DIR}/boot/fixup_x.dat ${BOOT_DIR}/fixup_x.dat |
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15 | 15 | cp ${RPI_FIRMWARE_DIR}/boot/start.elf ${BOOT_DIR}/start.elf |
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16 | 16 | cp ${RPI_FIRMWARE_DIR}/boot/start_cd.elf ${BOOT_DIR}/start_cd.elf |
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17 | 17 | cp ${RPI_FIRMWARE_DIR}/boot/start_x.elf ${BOOT_DIR}/start_x.elf |
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18 | 18 | else |
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19 | 19 | # Create temporary directory for boot binaries |
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20 | 20 | temp_dir=$(as_nobody mktemp -d) |
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21 | 21 | |
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22 | 22 | # Install latest boot binaries from raspberry/firmware github |
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23 | 23 | as_nobody wget -q -O "${temp_dir}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin" |
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24 | 24 | as_nobody wget -q -O "${temp_dir}/fixup.dat" "${FIRMWARE_URL}/fixup.dat" |
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25 | 25 | as_nobody wget -q -O "${temp_dir}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat" |
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26 | 26 | as_nobody wget -q -O "${temp_dir}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat" |
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27 | 27 | as_nobody wget -q -O "${temp_dir}/start.elf" "${FIRMWARE_URL}/start.elf" |
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28 | 28 | as_nobody wget -q -O "${temp_dir}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf" |
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29 | 29 | as_nobody wget -q -O "${temp_dir}/start_x.elf" "${FIRMWARE_URL}/start_x.elf" |
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30 | 30 | |
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31 | 31 | # Move downloaded boot binaries |
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32 | 32 | mv "${temp_dir}/"* "${BOOT_DIR}/" |
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33 | 33 | |
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34 | 34 | # Remove temporary directory for boot binaries |
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35 | 35 | rm -fr "${temp_dir}" |
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36 | 36 | |
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37 | 37 | # Set permissions of the boot binaries |
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38 | 38 | chown -R root:root "${BOOT_DIR}" |
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39 | 39 | chmod -R 600 "${BOOT_DIR}" |
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40 | 40 | fi |
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41 | 41 | fi |
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42 | 42 | |
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43 | 43 | # Setup firmware boot cmdline |
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44 | 44 | if [ "$ENABLE_SPLITFS" = true ] ; then |
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45 | 45 | CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1" |
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46 | 46 | else |
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47 | 47 | CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1" |
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48 | 48 | fi |
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49 | 49 | |
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50 | 50 | # Add encrypted root partition to cmdline.txt |
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51 | 51 | if [ "$ENABLE_CRYPTFS" = true ] ; then |
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52 | 52 | if [ "$ENABLE_SPLITFS" = true ] ; then |
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53 | 53 | CMDLINE=$(echo ${CMDLINE} | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/") |
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54 | 54 | else |
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55 | 55 | CMDLINE=$(echo ${CMDLINE} | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/") |
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56 | 56 | fi |
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57 | 57 | fi |
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58 | 58 | |
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59 | 59 | # Add serial console support |
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60 | 60 | if [ "$ENABLE_CONSOLE" = true ] ; then |
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61 | 61 | CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200" |
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62 | 62 | fi |
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63 | 63 | |
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64 | 64 | # Remove IPv6 networking support |
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65 | 65 | if [ "$ENABLE_IPV6" = false ] ; then |
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66 | 66 | CMDLINE="${CMDLINE} ipv6.disable=1" |
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67 | 67 | fi |
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68 | 68 | |
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69 | 69 | # Automatically assign predictable network interface names |
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70 | 70 | if [ "$ENABLE_IFNAMES" = false ] ; then |
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71 | 71 | CMDLINE="${CMDLINE} net.ifnames=0" |
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72 | 72 | else |
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73 | 73 | CMDLINE="${CMDLINE} net.ifnames=1" |
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74 | 74 | fi |
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75 | 75 | |
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76 | 76 | # Set init to systemd if required by Debian release |
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77 | 77 | if [ "$RELEASE" = "stretch" ] || [ "$RELEASE" = "buster" ] ; then |
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78 | 78 | CMDLINE="${CMDLINE} init=/bin/systemd" |
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79 | 79 | fi |
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80 | 80 | |
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81 | 81 | # Install firmware boot cmdline |
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82 | 82 | echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt" |
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83 | 83 | |
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84 | 84 | # Install firmware config |
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85 | 85 | install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt" |
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86 | 86 | |
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87 | 87 | # Setup minimal GPU memory allocation size: 16MB (no X) |
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88 | 88 | if [ "$ENABLE_MINGPU" = true ] ; then |
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89 | 89 | echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt" |
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90 | 90 | fi |
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91 | 91 | |
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92 | 92 | # Setup boot with initramfs |
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93 | 93 | if [ "$ENABLE_INITRAMFS" = true ] ; then |
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94 | 94 | echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt" |
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95 | 95 | fi |
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96 | 96 | |
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97 | 97 | # Disable RPi3 Bluetooth and restore ttyAMA0 serial device |
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98 | if [ "$RPI_MODEL" = 3 ] ; then | |
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98 | if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ]; then | |
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99 | 99 | if [ "$ENABLE_CONSOLE" = true ] && [ "$ENABLE_UBOOT" = false ] ; then |
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100 | 100 | echo "dtoverlay=pi3-disable-bt" >> "${BOOT_DIR}/config.txt" |
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101 | 101 | echo "enable_uart=1" >> "${BOOT_DIR}/config.txt" |
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102 | 102 | fi |
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103 | 103 | fi |
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104 | 104 | |
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105 | 105 | # Create firmware configuration and cmdline symlinks |
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106 | 106 | ln -sf firmware/config.txt "${R}/boot/config.txt" |
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107 | 107 | ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt" |
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108 | 108 | |
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109 | 109 | # Install and setup kernel modules to load at boot |
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110 | 110 | mkdir -p "${R}/lib/modules-load.d/" |
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111 | 111 | install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf" |
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112 | 112 | |
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113 | 113 | # Load hardware random module at boot |
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114 | 114 | if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then |
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115 | 115 | sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf" |
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116 | 116 | fi |
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117 | 117 | |
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118 | 118 | # Load sound module at boot |
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119 | 119 | if [ "$ENABLE_SOUND" = true ] ; then |
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120 | 120 | sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf" |
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121 | 121 | else |
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122 | 122 | echo "dtparam=audio=off" >> "${BOOT_DIR}/config.txt" |
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123 | 123 | fi |
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124 | 124 | |
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125 | 125 | # Enable I2C interface |
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126 | 126 | if [ "$ENABLE_I2C" = true ] ; then |
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127 | 127 | echo "dtparam=i2c_arm=on" >> "${BOOT_DIR}/config.txt" |
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128 | 128 | sed -i "s/^# i2c-bcm2708/i2c-bcm2708/" "${R}/lib/modules-load.d/rpi2.conf" |
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129 | 129 | sed -i "s/^# i2c-dev/i2c-dev/" "${R}/lib/modules-load.d/rpi2.conf" |
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130 | 130 | fi |
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131 | 131 | |
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132 | 132 | # Enable SPI interface |
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133 | 133 | if [ "$ENABLE_SPI" = true ] ; then |
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134 | 134 | echo "dtparam=spi=on" >> "${BOOT_DIR}/config.txt" |
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135 | 135 | echo "spi-bcm2708" >> "${R}/lib/modules-load.d/rpi2.conf" |
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136 | if [ "$RPI_MODEL" = 3 ] ; then | |
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136 | if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ]; then | |
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137 | 137 | sed -i "s/spi-bcm2708/spi-bcm2835/" "${R}/lib/modules-load.d/rpi2.conf" |
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138 | 138 | fi |
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139 | 139 | fi |
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140 | 140 | |
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141 | 141 | # Disable RPi2/3 under-voltage warnings |
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142 | 142 | if [ ! -z "$DISABLE_UNDERVOLT_WARNINGS" ] ; then |
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143 | 143 | echo "avoid_warnings=${DISABLE_UNDERVOLT_WARNINGS}" >> "${BOOT_DIR}/config.txt" |
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144 | 144 | fi |
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145 | 145 | |
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146 | 146 | # Install kernel modules blacklist |
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147 | 147 | mkdir -p "${ETC_DIR}/modprobe.d/" |
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148 | 148 | install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf" |
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149 | 149 | |
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150 | 150 | # Install sysctl.d configuration files |
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151 | 151 | install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf" |
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