I debug script to install Siemens NX 10 applications for Debian 8.2, and get the warning:Could not determine filesystem containing /usr/ugs100  space calculations may be incorrect.The source code of the script: ug_install (too large to post here). The code fragment generating this message, together with the two functions that it calls and other relevant functions:Init_fs_arrays() # Initializes the File System array.{       # RKB Thu Jan 31 22:39:57 PST 1991        # RKB Updated: Sep 28 15:26:28 PDT 1992        # RKB updtd: Jul  6 22:51 93 V10.1.1 make generic.        # RKB updtd: Mar  7 18:34 94 V103P2E streamline, rm set --.        # RKB updtd: Mar  9 22:34 94 V103P2E rm test -s for FS_FILE, just wait f        # RKB updtd: Wed Apr 20 2005 NX4P11 Added Linux support.        # This function initializes the FS_NAME & FS_FREE         # arrays based on the contents of $FS_FILE        FS_FILE=$UGS_TMP/filesystem_info # File name to read the results from.        $VECHO ${MSG}Initializing File System array ...        wait $SIZE_FS_PID # in case the file is not ready, wait for the bg job.        I=0 # Initialize the index        # Linux        # cat $FS_FILE | while read NAME SPACE  ; do        # Linux cant do cat file | while read must use while read done < file        while read NAME SPACE ; do                FS_NAME[$I]=$NAME ; FS_FREE[$I]=${SPACE:=0} ; FS_NEEDED[$I]=0                ((I+=1))  # Increment the index.        done < $FS_FILE        return 0} # End of Init_fs_arraysGet_fsindex() # Get the index number to supplied file system name. {       # RKB Mon Jan 21 21:00 91        # RKB Mar  8 23:59 94 V103P2E chg to use while loop not grep -n. faster.        : ${FS_NAME[*]:?} # Required variable internal check.        : ${1:?} # Required arg internal check.        I=0 # Init the index counter        # Loop thru the FS_NAME array to get index number for filesystem in arg         while [ $I -le ${#FS_NAME[*]} ] ; do                [ $1 = ${FS_NAME[$I]} ] && { echo $I ; return 0; }                ((I+=1)) # Increment the index.        done         unset FS_INDEX ;         return 1 # Didn't find the file system.} # End of Get_fsindexGet_fs_info() # Returns filesystem info for the directory argument.{       # Requires 2 global variables.    : ${DF_CMD:?cmd var must be set to use this function. }    : ${AWK_CMD:?cmd var must be set to use this function. }    # Requires 2 args; a switch and a target directory.    TARGET=$2 ; : ${TARGET:?} # Internal check    #    # If dir doesn't exist, check parent.    while [ ! -d $TARGET ] ; do        [ -f $TARGET ] && { # error if a file exists.            print ${ERR}directory name expected. file exists: $TARGET >&2            return 1 ;        }        TARGET=`dirname $TARGET`    done     #    # Do appropriate action based on the switch. The options are:    # use -sp to get free space, -fs for real filesystem name, -mnt returns    # the mount point and -nfs returns true if the filesystem is NFS mounted,     # and false if it's not.    #    # Set machine specific number for the df field containing filesystem.    [ $MACHINE = IRIX -o $MACHINE = IRIX64 ] && N=6 || N=5    case $1 in         -fs*)  $DF_CMD $TARGET | tr \012   | $AWK_CMD '{print $(NF-$N)}' ;;        -mnt*) $DF_CMD $TARGET | tr \012   | $AWK_CMD '{print $NF}'      ;;        -nfs)  $DF_CMD $TARGET | tr \012   | $AWK_CMD '{print $(NF-$N)}' | grep :/ >$NULL || return 1 ;;        -sp*)  $DF_CMD $TARGET | tail -1 | $AWK_CMD '{printf(%d,$(NF-2))}' ;;    esac    return 0} # Get_fs_info    SPACE_REQUIRED_KB=0     # Get the mount point for BASE_DIR.    BASE_MNT_PT=`Get_fs_info -mnt $BASE_DIR` || {            print ${WARN}Could not determine mount point for $BASE_DIR                              \r\tFile System information may be incorrect.     } # Shouldn't be any problem, but just to be safe.    FS_INDEX=`Get_fsindex $BASE_MNT_PT` || {            print ${WARN}Could not determine filesystem containing $BASE_DI                              \r\tspace calculations may be incorrect.     } # Shouldn't be any problem, but just to be safe.    #The contents of the temporary file /tmp/filesystem_info:/dev    10240/run    1621732/dev/shm    4031816/run/lock   5116/dev/mqueue 0/dev/hugepages  0/boot/efi   72815/run/user/116   815520/run/user/1000  815484That the Get_fs_info function returns?How to understand the contents of the filesystem_info file?
Siemens NX 10 installation: Could not determine filesystem containing /usr/ugs100
filesystems;ksh;disk usage