modules.d/90livenet/parse-livenet.sh

   1 #!/bin/sh
   2 # live net images - just like live images, but specified like:
   3 # root=live:[url-to-backing-file]
   4
   5 [ -z "$root" ] && root=$(getarg root=)
   6 . /lib/url-lib.sh
   7
   8 # live updates
   9 updates=$(getarg live.updates=)
  10 if [ -n "$updates" ]; then
  11     # make sure network comes up even if we're doing a local live device
  12     if [ -z "$netroot" ]; then
  13         echo > /tmp/net.ifaces
  14     fi
  15     echo "$updates" > /tmp/liveupdates.info
  16     echo '[ -e /tmp/liveupdates.done ]' > \
  17         $hookdir/initqueue/finished/liveupdates.sh
  18 fi
  19
  20 str_starts "$root" "live:" && liveurl="$root"
  21 str_starts "$liveurl" "live:" || return
  22 liveurl="${liveurl#live:}"
  23
  24 # setting netroot to "livenet:..." makes "livenetroot" get run after ifup
  25 if get_url_handler "$liveurl" >/dev/null; then
  26     info "livenet: root image at $liveurl"
  27     netroot="livenet:$liveurl"
  28     root="livenet" # quiet complaints from init
  29     rootok=1
  30     wait_for_dev -n /dev/root
  31 else
  32     info "livenet: no url handler for $liveurl"
  33 fi