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1 | 1 | # This file contains utility functions used by rpi23-gen-image.sh |
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2 | 2 | |
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3 | 3 | cleanup (){ |
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4 | 4 | set +x |
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5 | 5 | set +e |
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6 | 6 | |
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7 | 7 | # Identify and kill all processes still using files |
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8 | 8 | echo "killing processes using mount point ..." |
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9 | 9 | fuser -k "${R}" |
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10 | 10 | sleep 3 |
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11 | 11 | fuser -9 -k -v "${R}" |
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12 | 12 | |
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13 | 13 | # Clean up temporary .password file |
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14 | 14 | if [ -r ".password" ] ; then |
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15 | 15 | shred -zu .password |
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16 | 16 | fi |
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17 | 17 | |
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18 | 18 | # Clean up all temporary mount points |
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19 | 19 | echo "removing temporary mount points ..." |
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20 | 20 | umount -l "${R}/proc" 2> /dev/null |
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21 | 21 | umount -l "${R}/sys" 2> /dev/null |
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22 | 22 | umount -l "${R}/dev/pts" 2> /dev/null |
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23 | 23 | umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null |
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24 | 24 | umount "$BUILDDIR/mount" 2> /dev/null |
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25 | 25 | cryptsetup close "${CRYPTFS_MAPPING}" 2> /dev/null |
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26 | 26 | losetup -d "$ROOT_LOOP" 2> /dev/null |
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27 | 27 | losetup -d "$FRMW_LOOP" 2> /dev/null |
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28 | 28 | trap - 0 1 2 3 6 |
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29 | 29 | } |
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30 | 30 | |
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31 | 31 | chroot_exec() { |
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32 | 32 | # Exec command in chroot |
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33 | 33 | LANG=C LC_ALL=C DEBIAN_FRONTEND=noninteractive chroot ${R} $* |
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34 | 34 | } |
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35 | 35 | |
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36 | 36 | as_nobody() { |
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37 | 37 | # Exec command as user nobody |
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38 | sudo -u nobody LANG=C LC_ALL=C $* | |
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38 | sudo -E -u nobody LANG=C LC_ALL=C $* | |
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39 | 39 | } |
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40 | 40 | |
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41 | 41 | install_readonly() { |
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42 | 42 | # Install file with user read-only permissions |
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43 | 43 | install -o root -g root -m 644 $* |
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44 | 44 | } |
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45 | 45 | |
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46 | 46 | install_exec() { |
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47 | 47 | # Install file with root exec permissions |
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48 | 48 | install -o root -g root -m 744 $* |
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49 | 49 | } |
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50 | 50 | |
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51 | 51 | use_template () { |
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52 | 52 | # Test if configuration template file exists |
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53 | 53 | if [ ! -r "./templates/${CONFIG_TEMPLATE}" ] ; then |
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54 | 54 | echo "error: configuration template ${CONFIG_TEMPLATE} not found" |
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55 | 55 | exit 1 |
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56 | 56 | fi |
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57 | 57 | |
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58 | 58 | # Load template configuration parameters |
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59 | 59 | . "./templates/${CONFIG_TEMPLATE}" |
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60 | 60 | } |
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61 | 61 | |
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62 | 62 | chroot_install_cc() { |
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63 | 63 | # Install c/c++ build environment inside the chroot |
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64 | 64 | if [ -z "${COMPILER_PACKAGES}" ] ; then |
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65 | 65 | COMPILER_PACKAGES=$(chroot_exec apt-get -s install g++ make bc | grep "^Inst " | awk -v ORS=" " '{ print $2 }') |
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66 | 66 | |
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67 | 67 | if [ "$RELEASE" = "jessie" ] ; then |
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68 | 68 | chroot_exec apt-get -q -y --no-install-recommends install ${COMPILER_PACKAGES} |
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69 | 69 | elif [ "$RELEASE" = "stretch" ] ; then |
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70 | 70 | chroot_exec apt-get -q -y --allow-unauthenticated --no-install-recommends install ${COMPILER_PACKAGES} |
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71 | 71 | fi |
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72 | 72 | fi |
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73 | 73 | } |
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74 | 74 | |
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75 | 75 | chroot_remove_cc() { |
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76 | 76 | # Remove c/c++ build environment from the chroot |
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77 | 77 | if [ ! -z "${COMPILER_PACKAGES}" ] ; then |
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78 | 78 | chroot_exec apt-get -qq -y --auto-remove purge ${COMPILER_PACKAGES} |
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79 | 79 | COMPILER_PACKAGES="" |
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80 | 80 | fi |
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81 | 81 | } |
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