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Raspi2-3_GenImage
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Cloner depuis https://github.com/drtyhlpr/rpi23-gen-image.git

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1 #
1 #!/bin/sh
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 "${ETC_DIR}/fstab"
10 10
11 11 # Add usb/sda disk root partition to fstab
12 12 if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
13 13 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
14 14 fi
15 15
16 # Add encrypted root partition to fstab and crypttab
17 if [ "$ENABLE_CRYPTFS" = true ] ; then
18 # Replace fstab root partition with encrypted partition mapping
19 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
20
21 # Add encrypted partition to crypttab and fstab
22 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
23 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks,initramfs" >> "${ETC_DIR}/crypttab"
24
25 if [ "$ENABLE_SPLITFS" = true ] ; then
26 # Add usb/sda1 disk to crypttab
27 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
28 fi
29 fi
30
31 16 if [ "$ENABLE_USBBOOT" = true ] ; then
32 17 sed -i "s/mmcblk0p1/sda1/" "${ETC_DIR}/fstab"
33 18 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/fstab"
34 19
35 20 # Add usb/sda2 disk to crypttab
36 21 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/crypttab"
37 22 fi
38 23
39 24 # Generate initramfs file
40 25 if [ "$ENABLE_INITRAMFS" = true ] ; then
41 26 if [ "$ENABLE_CRYPTFS" = true ] ; then
27 if [ "$ENABLE_USBBOOT" = true ] ; then
28 # Add usb/sda2 disk to crypttab
29 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/crypttab"
30 fi
31
42 32 # Include initramfs scripts to auto expand encrypted root partition
43 33 if [ "$EXPANDROOT" = true ] ; then
44 34 install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
45 35 install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
46 36 install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
47 37 fi
48 38
39 # Replace fstab root partition with encrypted partition mapping
40 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
41
42 # Add encrypted partition to crypttab and fstab
43 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
44 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks,initramfs" >> "${ETC_DIR}/crypttab"
45
46 # Add encrypted root partition to fstab and crypttab
47 if [ "$ENABLE_SPLITFS" = true ] ; then
48 # Add usb/sda1 disk to crypttab
49 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
50 fi
51
52 if [ "$CRYPTFS_DROPBEAR" = true ]; then
49 53 if [ "$ENABLE_DHCP" = false ] ; then
50 54 # Get cdir from NET_ADDRESS e.g. 24
51 cdir=$(printf ${NET_ADDRESS} | cut -d '/' -f2)
55 cdir=$(printf "%s" "${NET_ADDRESS}" | cut -d '/' -f2)
52 56
53 57 # Convert cdir ro netmask e.g. 24 to 255.255.255.0
54 58 NET_MASK=$(cdr2mask "$cdir")
55 59
56 60 # Write static ip settings to "${ETC_DIR}"/initramfs-tools/initramfs.conf
57 61 sed -i "\$aIP=${NET_ADDRESS}::${NET_GATEWAY}:${NET_MASK}:${HOSTNAME}:" "${ETC_DIR}"/initramfs-tools/initramfs.conf
58 62
59 63 # Regenerate initramfs
60 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
64 #chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
61 65 fi
62 66
63 if [ "$CRYPTFS_DROPBEAR" = true ]; then
64 67 if [ -n "$CRYPTFS_DROPBEAR_PUBKEY" ] && [ -f "$CRYPTFS_DROPBEAR_PUBKEY" ] ; then
65 68 install_readonly "${CRYPTFS_DROPBEAR_PUBKEY}" "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
66 69 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub >> "${ETC_DIR}"/dropbear-initramfs/authorized_keys
67 70 else
68 71 # Create key
69 72 chroot_exec /usr/bin/dropbearkey -t rsa -f /etc/dropbear-initramfs/id_rsa.dropbear
70 73
71 74 # Convert dropbear key to openssh key
72 75 chroot_exec /usr/lib/dropbear/dropbearconvert dropbear openssh /etc/dropbear-initramfs/id_rsa.dropbear /etc/dropbear-initramfs/id_rsa
73 76
74 77 # Get Public Key Part
75 78 chroot_exec /usr/bin/dropbearkey -y -f /etc/dropbear-initramfs/id_rsa.dropbear | chroot_exec tee /etc/dropbear-initramfs/id_rsa.pub
76 79
77 80 # Delete unwanted lines
78 81 sed -i '/Public/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
79 82 sed -i '/Fingerprint/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
80 83
81 84 # Trust the new key
82 85 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub > "${ETC_DIR}"/dropbear-initramfs/authorized_keys
83 86
84 87 # Save Keys - convert with putty from rsa/openssh to puttkey
85 88 cp -f "${ETC_DIR}"/dropbear-initramfs/id_rsa "${BASEDIR}"/dropbear_initramfs_key.rsa
86 89
87 90 # Get unlock script
88 91 install_exec files/initramfs/crypt_unlock.sh "${ETC_DIR}"/initramfs-tools/hooks/crypt_unlock.sh
89 92
90 93 # Enable Dropbear inside initramfs
91 94 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=y\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
92 95
93 96 # Enable Dropbear inside initramfs
94 97 sed -i "54 i sleep 5" "${R}"/usr/share/initramfs-tools/scripts/init-premount/dropbear
95 98 fi
99 # CRYPTFSDROPBEAR=false
96 100 else
97 101 # Disable SSHD inside initramfs
98 102 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
99 103 fi
100 104
101 105 # Add cryptsetup modules to initramfs
102 106 printf "#\n# CRYPTSETUP: [ y | n ]\n#\n\nCRYPTSETUP=y\n" >> "${ETC_DIR}/initramfs-tools/conf-hook"
103 107
104 108 # Dummy mapping required by mkinitramfs
105 109 echo "0 1 crypt $(echo "${CRYPTFS_CIPHER}" | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"
106 110
107 111 # Generate initramfs with encrypted root partition support
108 112 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
109 113
110 114 # Remove dummy mapping
111 115 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
116 # CRYPTFS=false
112 117 else
113 118 # Generate initramfs without encrypted root partition support
114 119 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
115 120 fi
116 121 fi
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