live os partition names are not dev paths on disk

process_config.sh

@@ -37,6 +37,18 @@ function print_dev_help
  echo See the comments in $CONFPATH for details and more options.
 }
 
+function get_partition_info
+{
+ PART_INFO=
+ if [[ -e $1 ]]; then
+ PART_INFO=$(df $1 | egrep $1)
+ else
+ # most likely linux live os
+ PART_INFO=$(df | egrep $1)
+ fi
+ echo $PART_INFO
+}
+
 function find_partition_for_dir
 {
  PART=$(df "$1" | tail -1 | awk '{print $1;}')
@@ -56,6 +68,8 @@ function find_dev_for_dir
  exit
  fi
 
+ REALPATH=$PART
+ if [[ -e $PART ]]; then
  REALPATH=$(readlink -f $PART) # moves to /dev/dm-X in case of device mapper
  if [[ "$REALPATH" == "" ]]; then
  echo The directory where you want me store my test files,
@@ -67,6 +81,7 @@ function find_dev_for_dir
  print_dev_help
  exit
  fi
+ fi
 
  BASEPART=$(basename $PART)
  REALPART=$(basename $REALPATH)
@@ -248,12 +263,12 @@ function get_max_affordable_file_size
  PART=$(find_partition_for_dir $BASE_DIR)
  fi
 
- if [[ "$(df $PART | egrep $PART)" == "" ]]; then # it must be /dev/root
+ if [[ "$(get_partition_info $PART)" == "" ]]; then # it must be /dev/root
  PART=/dev/root
  fi
 
  BASE_DIR_SIZE=$(du -s $BASE_DIR | awk '{print $1}')
- FREESPACE=$(df $PART | egrep $PART | awk '{print $4}' | head -n 1)
+ FREESPACE=$(get_partition_info $PART | awk '{print $4}' | head -n 1)
  MAXTOTSIZE=$((($FREESPACE + $BASE_DIR_SIZE) / 2))
  MAXTOTSIZE_MiB=$(($MAXTOTSIZE / 1024))
  MAXSIZE_MiB=$((MAXTOTSIZE_MiB / 15))
@@ -382,11 +397,11 @@ function prepare_basedir
  PART=$(find_partition_for_dir $BASE_DIR)
  fi
 
- if [[ "$(df $PART | egrep $PART)" == "" ]]; then # it must be /dev/root
+ if [[ "$(get_partition_info $PART)" == "" ]]; then # it must be /dev/root
  PART=/dev/root
  fi
 
- FREESPACE=$(df $PART | egrep $PART | awk '{print $4}' | head -n 1)
+ FREESPACE=$(get_partition_info $PART | awk '{print $4}' | head -n 1)
 
  BASE_DIR_SIZE=$(du -s $BASE_DIR | awk '{print $1}')