mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-18 20:47:55 +00:00
113 lines
2.8 KiB
Bash
Executable File
113 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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# Scan for USB installation options
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set -e -o pipefail
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. /etc/functions
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. /etc/gui_functions
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. /tmp/config
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TRACE_FUNC
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#Booting from external media should be authenticated if supported
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gpg_auth || die "GPG authentication failed"
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# Unmount any previous boot device
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if grep -q /boot /proc/mounts ; then
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umount /boot \
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|| die "Unable to unmount /boot"
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fi
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available_partitions="$(blkid | while read line; do echo $line | awk -F ":" {'print $1'}; done )"
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if [ "$1" == "usb" ]; then
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# Mount the USB boot device
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mount_usb || die "Unable to mount /media"
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elif $(echo $available_partitions | grep -q "$1"); then
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if grep -q /media /proc/mounts; then
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umount /media \
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|| die "Unable to unmount /media"
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fi
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mount "$1" /media \
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|| die "Unable to mount $1 to /media"
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fi
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# Get USB boot device
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USB_BOOT_DEV=$(grep "/media" /etc/mtab | cut -f 1 -d' ')
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# Check for ISO first
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get_menu_option() {
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if [ -x /bin/whiptail ]; then
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MENU_OPTIONS=""
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n=0
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while read option
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do
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n=`expr $n + 1`
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option=$(echo $option | tr " " "_")
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MENU_OPTIONS="$MENU_OPTIONS $n ${option}"
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done < /tmp/iso_menu.txt
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MENU_OPTIONS="$MENU_OPTIONS a Abort"
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whiptail_type $BG_COLOR_MAIN_MENU --title "Select your ISO boot option" \
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--menu "Choose the ISO boot option [1-$n]:" 0 80 8 \
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-- $MENU_OPTIONS \
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2>/tmp/whiptail || die "Aborting boot attempt"
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option_index=$(cat /tmp/whiptail)
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else
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echo "+++ Select your ISO boot option:"
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n=0
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while read option
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do
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n=`expr $n + 1`
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echo "$n. $option"
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done < /tmp/iso_menu.txt
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read \
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-p "Choose the ISO boot option [1-$n, a to abort]: " \
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option_index
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fi
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# Empty occurs when aborting fbwhiptail with esc-esc
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if [ -z "$option_index" ] || [ "$option_index" = "a" ]; then
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die "Aborting boot attempt"
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fi
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option=`head -n $option_index /tmp/iso_menu.txt | tail -1`
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if [ -z "$option" ]; then
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die "Failed to find menu option $option_index"
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fi
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}
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# create ISO menu options
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ls -1r /media/*.iso 2>/dev/null > /tmp/iso_menu.txt || true
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if [ `cat /tmp/iso_menu.txt | wc -l` -gt 0 ]; then
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option_confirm=""
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while [ -z "$option" -a "$option_index" != "s" ]
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do
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get_menu_option
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done
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MOUNTED_ISO="$option"
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ISO="${option:7}" # remove /media/ to get device relative path
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DO_WITH_DEBUG kexec-iso-init "$MOUNTED_ISO" "$ISO" "$USB_BOOT_DEV"
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die "Something failed in iso init"
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fi
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# No *.iso files on media, try ordinary bootable USB
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if [ "$CONFIG_RESTRICTED_BOOT" = y ]; then
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die "No ISO files found, bootable USB not allowed with Restricted Boot."
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fi
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echo "!!! Could not find any ISO, trying bootable USB"
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# Attempt to pull verified config from device
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if [ -x /bin/whiptail ]; then
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DO_WITH_DEBUG kexec-select-boot -b /media -c "*.cfg" -u -g -s
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else
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DO_WITH_DEBUG kexec-select-boot -b /media -c "*.cfg" -u -s
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fi
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die "Something failed in selecting boot"
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