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klogd -c1 # TODO: This should be even earlier. Can it go on the kernel command line?
mountroot()
{
set -x
mkdir /cdrom /btrfs
mount -t iso9660 /dev/sr0 /cdrom
mount -t btrfs -o loop,subvol=ROOT /cdrom/live/filesystem.btrfs /btrfs
modprobe brd rd_size=$((256 * 1024 * 2))
btrfs device add /dev/ram0 /btrfs
mount -o rw,remount /btrfs
mount -o move /btrfs /root
mkdir /root/cdrom
mount -o move /cdrom /root/cdrom
sed -i -e 's/^root:x:/root::/' /root/etc/passwd
samizdat_install_udev_rules
openvt -c 13 sh
mkfifo "$MENUFIFO" || panic "mkfifo '$MENUFIFO' failed"
bootmenu
sleep 1000
set +x
}
samizdat_install_udev_rules()
{
mkdir -p /etc/udev/rules.d
echo 'ACTION=="add", SUBSYSTEM=="block", RUN+="/bin/grok-block $env{DEVNAME}"' \
> /etc/udev/rules.d/z00_blockdev_mountroot.rules
# 'udevadm trigger --action=add' does not work here; need to restard udevd
# first. not sure why
samizdat_restart_udev
udevadm trigger -s block --action add
}
samizdat_restart_udev()
{
mkdir -p /var/log
ps aux|grep systemd-udevd
killall systemd-udevd
/lib/systemd/systemd-udevd --resolve-names=never --debug >/var/log/udevd-systemd.log 2>&1 &
udevadm hwdb --update # rule is not executed by 'udevadm trigger' otherwise. not sure why
}
# TODO: do not duplicate these functions from common.sh
export MENUFIFO=/menu.fifo
addmenu()
{
cat <<END >>$MENUFIFO # mind the tabs
setItem "$1" "dummy" "$2" "$3"
END
}
menutitle()
{
printf 'setTitle "%s"\n' "$1" >>$MENUFIFO
printf 'setWelcomeText "%s"\n' "$2" >>$MENUFIFO
}
bootmenu()
{
local do_trigger="$1" no_panic="$2"
/bin/openvt -f -c 7 -- dynmenu "$MENUFIFO" &&
chvt 7 &&
menutitle 'Samizdat\n\nAs the Internet develops there are\ntransitions in the management arrangements.\nThe time has come to take\na small step in one of those transitions.' 'Choose an installation target.'
# menutitle 'Samizdat\nfreedom from surveillance\nno trusted authorities' 'Choose an installation target.'
addmenu "ramdisk" "[ Boot to RAM without installing anything ]" "menu-select boot-ram"
}
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