114 lines
3.8 KiB
SYSTEMD
114 lines
3.8 KiB
SYSTEMD
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#!/bin/sh
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# Vars
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## Define the hard drive to use
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if [ -b '/dev/sda' ]; then
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hdd="/dev/sda"
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else
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printf '%b\n' "Please check the hard drive to use"
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exit 0
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fi
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## If empty, the script will try to get one with nslookup
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new_hostname=""
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## Volume Group name to use for LVM
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vgname="${new_hostname}vg"
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## If the script should create extra volume (eg. backup, virt, Proxmox,…)
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manage_extra_lv=0
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## Colors definition {{{
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BLACK='\033[49;30m'
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BLACKB='\033[49;90m'
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RED='\033[0;31m'
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REDB='\033[1;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[0;33m'
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BLUE='\033[94;49m'
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MAGENTA='\033[0;35m'
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CYAN='\033[36;49m'
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WHITE='\033[0;37m'
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BOLD='\033[1m'
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RESET='\033[0m'
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## }}}
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## Mount the system {{{
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### Root
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mkdir -p -- /target
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mountpoint -q /target || mount -- /dev/mapper/"${vgname}"-root /target
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### boot - grub
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mountpoint -q /target/boot || mount -- ${hdd}1 /target/boot
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#### home LV
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mountpoint -q /target/home || mount -- /dev/mapper/"${vgname}"-home /target/home
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#### opt LV
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mountpoint -q /target/opt || mount -- /dev/mapper/"${vgname}"-opt /target/opt
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#### srv LV
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mountpoint -q /target/srv || mount -- /dev/mapper/"${vgname}"-srv /target/srv
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#### tmp LV
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mountpoint -q /target/tmp || mount -- /dev/mapper/"${vgname}"-tmp /target/tmp
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#### usr LV
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mountpoint -q /target/usr || mount -- /dev/mapper/"${vgname}"-usr /target/usr
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#### var LV
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mountpoint -q /target/var || mount -- /dev/mapper/"${vgname}"-var /target/var
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if [ "${manage_extra_lv}" -eq 0 ]; then
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### Extra bkp LV
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mountpoint -q /target/srv/backup || mount -- /dev/mapper/"${vgname}"-bkp /target/srv/backup
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### Extra vz LV
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mountpoint -q /target/var/lib/vz || mount -- /dev/mapper/"${vgname}"-vz /target/var/lib/vz
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fi
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### Swap
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swapon -- /dev/mapper/"${vgname}"-swap
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## }}}
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## Ensure to (re)mount devices for chroot {{{
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mkdir -p -- /target/dev
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mountpoint -q /target/dev || mount -t devtmpfs -- none /target/dev
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mkdir -p -- /target/dev/pts
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mountpoint -q /target/dev/pts || mount -t devpts -- /dev/pts /target/dev/pts
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mkdir -p -- /target/proc
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mountpoint -q /target/proc || mount -t proc -- none /target/proc
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mkdir -p -- /target/sys
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mountpoint -q /target/sys || mount -t sysfs -- none /target/sys
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### FIXME : /run/lvm needs to be manually set in debootstrap|chroot for Buster {{{
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### See :
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### https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=918590
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### https://bbs.archlinux.org/viewtopic.php?pid=1820949#p1820949
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mkdir -p -- /target/run/lvm
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mountpoint -q /target/run/lvm || mount --bind -- /run/lvm /target/run/lvm
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mkdir -p -- /target/run/udev
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mountpoint -q /target/run/udev || mount --bind -- /run/udev /target/run/udev
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### }}}
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## }}}
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## Network {{{
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### Get all informations from current network configuration in rescue mode
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net_device=$(ip r | grep "^default" | head -1 | cut -d" " -f5)
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#### TODO: Switch to ip a to get ip address
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net_address=$(ip r | grep -vE "(^default|metric)" | grep "${net_device}.*src" | head -1 | awk -F" " '{print $NF}')
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read -r net_mac_address </sys/class/net/"${net_device}"/address
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net_netmask=$(ipcalc "${net_address}" | awk '/Netmask:/{print $2;}')
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net_netmask_cidr=$(ipcalc "${net_address}" | awk '/Netmask:/{print $4;}')
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net_broadcast=$(ip a s dev "${net_device}" | awk '/inet.*brd/{print $4}')
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net_network=$(ip r | grep -vE "(^default|metric)" | grep "src ${net_address}" | head -1 | cut -d"/" -f1)
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net_gateway=$(ip r | grep "^default" | head -1 | cut -d" " -f3)
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### Create a network unit for systemd-networkd
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printf '%b' "[Match]
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MACAddress=${net_mac_address}
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[Network]
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Description=network interface with default route without dhcp
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DHCP=no
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Address=${net_address}/${net_netmask_cidr}
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Gateway=${net_gateway}
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IPv6AcceptRA=no
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DNS=80.67.169.12
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" > /tmp/50-default.network
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## }}}
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printf '%b\n' "${GREEN}The system is available on /target you can now try to chroot.${RESET}"
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exit 0
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