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|
#!/bin/sh
set -e
DIR=
DEV_ROOT=
while [ $# -gt 0 ]; do
case "$1" in
-h|--help)
echo "Usage: gentoo-mount [OPTION]... DIR"
echo "Simple script for mounting chrootable gentoo system to given"
echo "directory."
echo
echo "Options:"
echo " -h, --help"
echo " Print this help text."
echo " -s, --sys-only"
echo " Mount only system paths to already given prepared"
echo " directory."
exit 0
;;
*)
if [ -z "$DIR" ]; then
DIR="$1"
else
echo "Unknown argument: $1" >&2
exit 1
fi
;;
esac
shift
done
if [ $(id -u) != 0 ]; then
echo "This script has to be run only as root." >&2
exit 1
fi
# Interactive mount
# Usage: imount DEVICE PATH OPTIONS NAME
# DEVICE: device to mount. If not provided (empty) then ask user.
# PATH: path where mount will be mounted.
# OPTIONS: mount options (mount -o)
# NAME: optional name to be used for mapper
imount() {
if [ -n "$1" ]; then
return mount -o "$3" "$1" "$2"
fi
echo "\e[1;32mPlease choose device\e[0m"
lsblk -o NAME,LABEL,SIZE,FSTYPE,MOUNTPOINT
while true; do
echo -n "Device: /dev/"
read DEVICE
if [ ! -b "/dev/$DEVICE" ]; then
echo "No such device: /dev/$DEVICE" >&2
else
break
fi
done
# Check if it's Luks partition and open it if it's
if cryptsetup isLuks "/dev/$DEVICE"; then
local CSNAME="$4"
while [ -e "/dev/mapper/$CSNAME" ]; do
CSNAME="${CSNAME}2"
done
echo "\e[1;32mOpening encrypted filesystem\e[0m"
cryptsetup open "/dev/$DEVICE" "$CSNAME"
DEVICE="mapper/$CSNAME"
fi
local OPTIONS="$3"
# Specially handle btrfs
if [ -n "$(blkid -t TYPE=btrfs "/dev/$DEVICE")" ]; then
if [ -n "$OPTIONS" ]; then
OPTIONS="$OPTIONS,compress=lzo"
else
OPTIONS="compress=lzo"
fi
local TMP="$(mktemp -d)"
mount "/dev/$DEVICE" "$TMP"
while true; do
echo "\e[1;32mPlease choose subvolume\e[0m"
btrfs subvolume list -t "$TMP"
# TODO default value? Probably same as name?
echo -n "Subvolume: "
read SUBVOL
if btrfs subvolume list "$TMP" | grep -q "$SUBVOL"; then
OPTIONS="$OPTIONS,subvol=$SUBVOL"
break
fi
done
umount "$TMP"
rmdir "$TMP"
fi
# And at last mount
mount -o "$OPTIONS" "/dev/$DEVICE" "$2"
}
# Mount root filesystem ##########################################################
echo "\e[1;34mMount root filesystem\e[0m"
imount "$DEV_ROOT" "$DIR" "" root
# Mount system paths #############################################################
echo "\e[1;34mMount system paths\e[0m"
mount -t proc /proc "$DIR/proc"
mount --rbind /dev "$DIR/dev"
mount --rbind /sys "$DIR/sys"
# Copy current resolv.conf #######################################################
echo "\e[1;34mCopy system resolv.conf\e[0m"
cp /etc/resolv.conf "$DIR/etc/resolv.conf"
# Mount boot partition ###########################################################
echo "\e[1;34mMount boot partition\e[0m"
imount "$DEV_BOOT" "$DIR/boot"
# Mount home partition ###########################################################
echo "\e[1;34mMount home partition\e[0m"
imount "$DEV_HOME" "$DIR/home"
|
