Switch default mount point from /lib/live/mount/medium to /run/live/m…

…edium

In commit 0d878d3a679 of live-boot(-grml)
("Simplify mount point handling by using /run/live instead of /lib/live/mount")
the mountpath of /lib/live/mount/medium was moved towards /run/live/medium.

Commit c6a17c7b41b of live-boot(-grml) provides a backward compatibility
rbind mount, but occasionally there seems to be a regression somewhere
during boot (see grml/live-boot-grml#10), and
the rbind mount will be deprecated and removed before the bullseye
(Debian 11) release.

Layout changes over time:

* /cdrom for old linuxrc approach
* /live/image for initramfs layout until December 2012
* /lib/live/mount/medium for initramfs layout since December 2012
* /run/live/medium for initramfs layout since December 2018

debian/control

@@ -30,4 +30,4 @@ Recommends: syslinux,
 Description: install Grml system / ISO to usb device
  This script installs a Grml ISO to an USB device to be able
  to boot from it.  Make sure you have at least one Grml ISO
- or a running Grml system (/lib/live/mount/medium) available.
+ or a running Grml system (/run/live/medium) available.

grml2usb

@@ -69,10 +69,10 @@ def grub_option(option, opt, value, opt_parser):
 
 
 # cmdline parsing
-USAGE = "Usage: %prog [options] <[ISO[s] | /lib/live/mount/medium]> </dev/sdX#>\n\
+USAGE = "Usage: %prog [options] <[ISO[s] | /run/live/medium]> </dev/sdX#>\n\
 \n\
 %prog installs Grml ISO[s] to an USB device to be able to boot from it.\n\
-Make sure you have at least one Grml ISO or a running Grml system (/lib/live/mount/medium),\n\
+Make sure you have at least one Grml ISO or a running Grml system (/run/live/medium),\n\
 grub or syslinux and root access.\n\
 \n\
 Run %prog --help for usage hints, further information via: man grml2usb"
@@ -1227,7 +1227,7 @@ def identify_grml_flavour(mountpath):
     version_files = search_file('grml-version', mountpath, lst_return=True)
 
     if not version_files:
-        if mountpath.startswith("/lib/live/mount/medium"):
+        if mountpath.startswith("/run/live/medium"):
             logging.critical("Error: could not find grml-version file.")
             logging.critical("Looks like your system is running from RAM but required files are not available.")
             logging.critical("Please either boot without toram=... or use boot option toram instead of toram=...")
@@ -1628,7 +1628,7 @@ def install(image, device):
 def install_grml(mountpoint, device):
     """Main logic for copying files of the currently running Grml system.
 
-    @mountpoint: directory where currently running live system resides (usually /lib/live/mount/medium)
+    @mountpoint: directory where currently running live system resides (usually /run/live/medium)
     @device: partition where the specified ISO should be installed to"""
 
     device_mountpoint = device

grml2usb.8.txt

@@ -37,7 +37,7 @@ Options
 -------
 
 ISO[s] should be the path to one or multiple grml-ISOs and/or the path to
-the currently running live-system (being /lib/live/mount/medium).
+the currently running live-system (being /run/live/medium).
 
 The device either might be a device name like /dev/sdX1 or a directory. When
 specifying a device name the device is mounted automatically. When specifying a
@@ -580,11 +580,11 @@ Install specified ISO on device /dev/sdX1.
 
 Install specified ISOs on device /dev/sdX1 for multibooting ISOs.
 
-  # grml2usb /lib/live/mount/medium /dev/sdX1
+  # grml2usb /run/live/medium /dev/sdX1
 
 Install currently running Grml live system on device /dev/sdX1.
 
-  # grml2usb /lib/live/mount/medium /home/grml/grml64-full_2018.12.iso /dev/sdX1
+  # grml2usb /run/live/medium /home/grml/grml64-full_2018.12.iso /dev/sdX1
 
 Install currently running Grml live system and the specified
 ISO on device /dev/sdX1 for multibooting.

zsh/_grml2usb

@@ -21,7 +21,7 @@ done
 # TODO:
 # * handling of --bootoptions=BOOTOPTIONS
 # * $devices should also list directories as valid target
-# * as output before :device:.... ISO files and/or /lib/live/mount/medium should be suggested
+# * as output before :device:.... ISO files and/or /run/live/medium should be suggested
 
 arguments=(
   '--help[display help message and exit]:'