@@ -1,102 +1,102 | |||||
1 | # |
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1 | # | |
2 | # Kernel installation |
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2 | # Kernel installation | |
3 | # |
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3 | # | |
4 |
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4 | |||
5 | . ./functions.sh |
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5 | . ./functions.sh | |
6 |
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6 | |||
7 | # Fetch and build latest raspberry kernel |
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7 | # Fetch and build latest raspberry kernel | |
8 | if [ "$BUILD_KERNEL" = true ] ; then |
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8 | if [ "$BUILD_KERNEL" = true ] ; then | |
9 | # Fetch current raspberrypi kernel sources |
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9 | # Fetch current raspberrypi kernel sources | |
10 | git -C $R/usr/local/src clone --depth=1 https://github.com/raspberrypi/linux |
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10 | git -C $R/usr/local/src clone --depth=1 https://github.com/raspberrypi/linux | |
11 |
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11 | |||
12 | # Load default raspberry kernel configuration |
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12 | # Load default raspberry kernel configuration | |
13 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig |
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13 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig | |
14 |
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14 | |||
15 | # Cross compile kernel and modules |
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15 | # Cross compile kernel and modules | |
16 | make -C $R/usr/local/src/linux -j$(grep -c processor /proc/cpuinfo) ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs |
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16 | make -C $R/usr/local/src/linux -j$(grep -c processor /proc/cpuinfo) ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs | |
17 |
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17 | |||
18 | # Install kernel modules |
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18 | # Install kernel modules | |
19 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=../.. modules_install |
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19 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=../.. modules_install | |
20 |
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20 | |||
21 | # Install kernel headers |
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21 | # Install kernel headers | |
22 | if [ "$KERNEL_HEADERS" = true ]; then |
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22 | if [ "$KERNEL_HEADERS" = true ]; then | |
23 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_HDR_PATH=../../usr headers_install |
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23 | make -C $R/usr/local/src/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_HDR_PATH=../../usr headers_install | |
24 | fi |
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24 | fi | |
25 |
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25 | |||
26 | # Copy and rename compiled kernel to boot directory |
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26 | # Copy and rename compiled kernel to boot directory | |
27 | mkdir $R/boot/firmware/ |
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27 | mkdir $R/boot/firmware/ | |
28 | $R/usr/local/src/linux/scripts/mkknlimg $R/usr/local/src/linux/arch/arm/boot/zImage $R/boot/firmware/kernel7.img |
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28 | $R/usr/local/src/linux/scripts/mkknlimg $R/usr/local/src/linux/arch/arm/boot/zImage $R/boot/firmware/kernel7.img | |
29 |
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29 | |||
30 | # Copy dts and dtb device definitions |
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30 | # Copy dts and dtb device definitions | |
31 | mkdir $R/boot/firmware/overlays/ |
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31 | mkdir $R/boot/firmware/overlays/ | |
32 | cp $R/usr/local/src/linux/arch/arm/boot/dts/*.dtb $R/boot/firmware/ |
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32 | cp $R/usr/local/src/linux/arch/arm/boot/dts/*.dtb $R/boot/firmware/ | |
33 | cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/*.dtb* $R/boot/firmware/overlays/ |
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33 | cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/*.dtb* $R/boot/firmware/overlays/ | |
34 | cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/README $R/boot/firmware/overlays/ |
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34 | cp $R/usr/local/src/linux/arch/arm/boot/dts/overlays/README $R/boot/firmware/overlays/ | |
35 |
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35 | |||
36 | # Install raspberry bootloader and flash-kernel |
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36 | # Install raspberry bootloader and flash-kernel | |
37 | chroot_exec apt-get -qq -y --no-install-recommends install raspberrypi-bootloader-nokernel |
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37 | chroot_exec apt-get -qq -y --no-install-recommends install raspberrypi-bootloader-nokernel | |
38 | else |
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38 | else | |
39 | # Kernel installation |
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39 | # Kernel installation | |
40 | chroot_exec apt-get -qq -y --no-install-recommends install linux-image-${KERNEL} raspberrypi-bootloader-nokernel |
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40 | chroot_exec apt-get -qq -y --no-install-recommends install linux-image-${KERNEL} raspberrypi-bootloader-nokernel | |
41 |
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41 | |||
42 | # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot |
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42 | # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot | |
43 | chroot_exec apt-get -qq -y install flash-kernel |
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43 | chroot_exec apt-get -qq -y install flash-kernel | |
44 |
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44 | |||
45 | VMLINUZ="$(ls -1 $R/boot/vmlinuz-* | sort | tail -n 1)" |
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45 | VMLINUZ="$(ls -1 $R/boot/vmlinuz-* | sort | tail -n 1)" | |
46 | [ -z "$VMLINUZ" ] && exit 1 |
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46 | [ -z "$VMLINUZ" ] && exit 1 | |
47 | cp $VMLINUZ $R/boot/firmware/kernel7.img |
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47 | cp $VMLINUZ $R/boot/firmware/kernel7.img | |
48 | fi |
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48 | fi | |
49 |
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49 | |||
50 | # Set up firmware boot cmdline |
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50 | # Set up firmware boot cmdline | |
51 | CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1" |
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51 | CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1 ${CMDLINE}" | |
52 |
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52 | |||
53 | # Set up serial console support (if requested) |
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53 | # Set up serial console support (if requested) | |
54 | if [ "$ENABLE_CONSOLE" = true ] ; then |
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54 | if [ "$ENABLE_CONSOLE" = true ] ; then | |
55 | CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200" |
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55 | CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200" | |
56 | fi |
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56 | fi | |
57 |
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57 | |||
58 | # Set up IPv6 networking support |
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58 | # Set up IPv6 networking support | |
59 | if [ "$ENABLE_IPV6" = false ] ; then |
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59 | if [ "$ENABLE_IPV6" = false ] ; then | |
60 | CMDLINE="${CMDLINE} ipv6.disable=1" |
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60 | CMDLINE="${CMDLINE} ipv6.disable=1" | |
61 | fi |
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61 | fi | |
62 |
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62 | |||
63 | echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt |
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63 | echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt | |
64 |
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64 | |||
65 | # Set up firmware config |
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65 | # Set up firmware config | |
66 | install -o root -g root -m 644 files/config.txt $R/boot/firmware/config.txt |
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66 | install -o root -g root -m 644 files/config.txt $R/boot/firmware/config.txt | |
67 |
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67 | |||
68 | # Load snd_bcm2835 kernel module at boot time |
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68 | # Load snd_bcm2835 kernel module at boot time | |
69 | if [ "$ENABLE_SOUND" = true ] ; then |
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69 | if [ "$ENABLE_SOUND" = true ] ; then | |
70 | echo "snd_bcm2835" >>$R/etc/modules |
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70 | echo "snd_bcm2835" >>$R/etc/modules | |
71 | fi |
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71 | fi | |
72 |
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72 | |||
73 | # Set smallest possible GPU memory allocation size: 16MB (no X) |
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73 | # Set smallest possible GPU memory allocation size: 16MB (no X) | |
74 | if [ "$ENABLE_MINGPU" = true ] ; then |
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74 | if [ "$ENABLE_MINGPU" = true ] ; then | |
75 | echo "gpu_mem=16" >>$R/boot/firmware/config.txt |
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75 | echo "gpu_mem=16" >>$R/boot/firmware/config.txt | |
76 | fi |
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76 | fi | |
77 |
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77 | |||
78 | # Create symlinks |
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78 | # Create symlinks | |
79 | ln -sf firmware/config.txt $R/boot/config.txt |
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79 | ln -sf firmware/config.txt $R/boot/config.txt | |
80 | ln -sf firmware/cmdline.txt $R/boot/cmdline.txt |
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80 | ln -sf firmware/cmdline.txt $R/boot/cmdline.txt | |
81 |
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81 | |||
82 | # Prepare modules-load.d directory |
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82 | # Prepare modules-load.d directory | |
83 | mkdir -p $R/lib/modules-load.d/ |
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83 | mkdir -p $R/lib/modules-load.d/ | |
84 |
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84 | |||
85 | # Load random module on boot |
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85 | # Load random module on boot | |
86 | if [ "$ENABLE_HWRANDOM" = true ] ; then |
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86 | if [ "$ENABLE_HWRANDOM" = true ] ; then | |
87 | cat <<EOM >$R/lib/modules-load.d/rpi2.conf |
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87 | cat <<EOM >$R/lib/modules-load.d/rpi2.conf | |
88 | bcm2708_rng |
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88 | bcm2708_rng | |
89 | EOM |
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89 | EOM | |
90 | fi |
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90 | fi | |
91 |
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91 | |||
92 | # Prepare modprobe.d directory |
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92 | # Prepare modprobe.d directory | |
93 | mkdir -p $R/etc/modprobe.d/ |
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93 | mkdir -p $R/etc/modprobe.d/ | |
94 |
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94 | |||
95 | # Blacklist sound modules |
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95 | # Blacklist sound modules | |
96 | install -o root -g root -m 644 files/modprobe.d/raspi-blacklist.conf $R/etc/modprobe.d/raspi-blacklist.conf |
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96 | install -o root -g root -m 644 files/modprobe.d/raspi-blacklist.conf $R/etc/modprobe.d/raspi-blacklist.conf | |
97 |
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97 | |||
98 | # Create default fstab |
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98 | # Create default fstab | |
99 | install -o root -g root -m 644 files/fstab $R/etc/fstab |
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99 | install -o root -g root -m 644 files/fstab $R/etc/fstab | |
100 |
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100 | |||
101 | # Avoid swapping and increase cache sizes |
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101 | # Avoid swapping and increase cache sizes | |
102 | install -o root -g root -m 644 files/sysctl.d/81-rpi-vm.conf $R/etc/sysctl.d/81-rpi-vm.conf |
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102 | install -o root -g root -m 644 files/sysctl.d/81-rpi-vm.conf $R/etc/sysctl.d/81-rpi-vm.conf |
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