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#!/bin/bash
# source in the functions
source /opt/vyatta/sbin/install-functions
# export INSTALL_LOG for the scripts invoked
export INSTALL_LOG=/tmp/install-$$.log
# export PROGRESS_PID for the scripts invoked
export PROGRESS_PID=$$
# file for get-partition output
PART_FILE=''
# Temp directory for downloaded ISO
TEMP_DIR="/var/tmp/install-image.$$"
fail_exit ()
{
echo "$*"
echo 'Exiting...'
exit 1
}
clean_up ()
{
if [ -n "$PART_FILE" ]; then
rm -f $PART_FILE >&/dev/null
fi
umount $CD_SQUASH_ROOT >&/dev/null || true
umount $CD_ROOT >&/dev/null || true
umount $INST_ROOT >&/dev/null || true
umount $READ_ROOT >&/dev/null || true
umount $WRITE_ROOT >&/dev/null || true
if [ -d "$TEMP_DIR" ]; then
rm -rf $TEMP_DIR
fi
}
sig_handler () {
echo "ERROR: Signal received. Exiting..."
clean_up
echo "Done"
trap - EXIT
exit 1
}
exit_handler () {
clean_up
}
# Try to fetch the ISO file using a URL provided by the user.
# If successful, we leave $NEW_ISO pointing to the ISO file that
# was downloaded.
fetch_iso_by_url ()
{
mkdir $TEMP_DIR
echo "Trying to fetch ISO file from $NEW_ISO"
wget -P $TEMP_DIR $NEW_ISO
if [ $? -ne 0 ]; then
echo "Unable to fetch ISO from $NEW_ISO"
exit 1
fi
filename="${TEMP_DIR}/${NEW_ISO##*/}"
if [ ! -e $filename ]; then
echo "Download of $NEW_ISO failed"
exit 1
fi
echo "ISO download suceeded."
NEW_ISO=$filename
}
# set up the specified ISO image file or URL for install
set_up_new_iso ()
{
url_scheme=${NEW_ISO%%:*}
if [ "$url_scheme" != "$NEW_ISO" ]; then
if [ "$url_scheme" = "http" -o "$url_scheme" = "https" -o \
"$url_scheme" = "ftp" ]; then
fetch_iso_by_url
fi
fi
if [ ! -f "$NEW_ISO" ] || ! (file $NEW_ISO | grep -q 9660); then
fail_exit "\"$NEW_ISO\" is not a valid ISO image file."
fi
# make sure mount points exist
mkdir -p $INST_ROOT $WRITE_ROOT $READ_ROOT $CD_ROOT $CD_SQUASH_ROOT
# mount ISO
margs="-o loop,ro $NEW_ISO $CD_ROOT"
if ! try_mount "$margs"; then
fail_exit 'Failed to mount the new image.'
fi
# check squash image
local squash_file=$CD_ROOT/live/filesystem.squashfs
if [ ! -f "$squash_file" ] || ! (file $squash_file | grep -q Squashfs) \
|| ! grep -q '^ii vyatta-version ' $CD_ROOT/live/packages.txt; then
fail_exit "\"$NEW_ISO\" is not a Vyatta ISO image file."
fi
# mount squash image
margs="-o loop,ro $squash_file $CD_SQUASH_ROOT"
if ! try_mount "$margs"; then
fail_exit 'Failed to mount the squashfs image.'
fi
}
# install new image into a newly-formatted partition.
# will exit with error if installation fails.
install_new ()
{
local root_part=$1
local inst_drv=$2
if [ ! -e "/dev/$root_part" ] || [ ! -e "/dev/$inst_drv" ]; then
fail_exit "Invalid drive/partition ($inst_drv and $root_part)."
fi
# install new image
if ! /opt/vyatta/sbin/install-image-new "$root_part"; then
exit 1
fi
# postinst operations
if ! /opt/vyatta/sbin/install-postinst-new \
"$inst_drv" "$root_part" union; then
exit 1
fi
}
# install new image into the current boot partition.
# will exit with error if installation fails.
install_existing ()
{
local ctype=$1
if ! /opt/vyatta/sbin/install-image-existing "$ctype"; then
exit 1
fi
}
# the image to be installed. only used if installing from an installed,
# running system.
NEW_ISO=$1
if [ `whoami` != 'root' ] ; then
fail_exit 'This script must be run with root privileges.'
fi
trap sig_handler INT KILL
trap exit_handler EXIT
cat <<EOF
Welcome to the Vyatta install program. This script
will walk you through the process of installing the
Vyatta image to a local hard drive.
EOF
response=''
while [ -z $response ]
do
echo -n "Would you like to continue? (Yes/No) [Yes]: "
response=$(get_response "Yes" "Yes No Y N")
if [ "$response" == "no" ] || [ "$response" == "n" ]; then
fail_exit 'Ok then.'
fi
done
if is_live_cd_boot; then
if [ -n "$NEW_ISO" ]; then
echo 'You are trying to install from a live CD boot. The live CD image'
fail_exit 'will be used. Do not specify an ISO image file or URL.'
fi
elif [ -z "$NEW_ISO" ]; then
echo 'You are trying to install from an already installed system. An ISO'
fail_exit 'image file to install or URL must be specified.'
else
# installing on an installed system. set up the new image.
set_up_new_iso
fi
# check versions
if is_live_cd_boot; then
CURVER=LIVECD
else
CURVER=$(get_cur_version)
fi
NEWVER=$(get_new_version)
if [ -z "$CURVER" ] || [ -z "$NEWVER" ]; then
fail_exit 'Cannot find release version.'
fi
if [ "$CURVER" == "$NEWVER" ]; then
fail_exit "Version \"$NEWVER\" is already installed."
fi
# get install partition
PART_FILE=$(mktemp /tmp/inst-get-part.XXXXXX) \
|| fail_exit 'Failed to create temporary file'
if ! /opt/vyatta/sbin/install-get-partition $PART_FILE; then
exit 1
fi
# get the partition params
root_part_type=''
root_part=''
inst_drv=''
eval "read root_part_type root_part inst_drv <$PART_FILE" >&/dev/null
rm -f $PART_FILE >&/dev/null
# handle different types
case "$root_part_type" in
new)
install_new "$root_part" "$inst_drv"
exit 0
;;
union|old)
install_existing "$root_part_type"
exit 0
;;
*)
fail_exit "Unknown partition type \"$root_part_type\"."
;;
esac
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