When I invoke 'System Monitor' under the file systems tab it shows:
/dev/loop0 /KNOPPIX-DATA ext2 528.4 MB 125.8 MB 402.6 MB 76%
The used value of 402.6 MB (76%) has gradually gone up from minimal when Knoppix was first (Poor man) installed until now and I do not know why. I have not knowingly added anything apart from preferences I might make in various programs. My main usage is the Chrome browser. At the end of each session I clear browsing data and any downloads are moved to physical disk space and deleted from the downloads directory.
This figure is now too high and I want to reduce it by removing stuff that is not necessary. I thought I would use File manager for that so fired up PCManFM and looked at the /KNOPPIX-DATA directory and sub directories. There did not look much there at all. I looked at the properties of /KNOPPIX-DATA and the total size of files is 82.7 MB. I thought I would have a look inside the knoppix-data.img file by using another linux to extract the files from it. Again the files extracted came to a size of ~80+ MB.
So what is the other 319.9 MB used for and where is it so I can delete what is unnecessary!
Dell Poweredge R640 Server | 2x Silver 4114 20 Cores | 192GB | 8x HDD Trays
$1939.99
Dell Poweredge R640 Server | 2x Silver 4114 20 Cores | 64GB | 8x HDD Trays
$1614.99
Intel XEON E5-2699 V3 CPU PROCESSOR 18 CORE 2.30GHZ 45MB L3 CACHE 145W SR1XD
$45.00
Dell PowerEdge R740XD Server | 2x Gold 6140 36 Cores | H730 | Choose RAM/ Drives
$2800.00
Intel Xeon E5-2680 v4 2.4GHz 35MB 14-Core 120W LGA2011-3 SR2N7
$17.99
Intel Xeon E5-2699v4 SR2JS 2.2GHz 22-Core 55MB 145W Server Processor CPU
$144.95
Intel Xeon E5-2697A V4 2.6GHz CPU Processor 16-Core Socket LGA2011 SR2K1
$39.99
Intel Xeon Gold 6126 2.6 GHz LGA 3647 Server CPU Processor SR3B3
$17.99
HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram Dual 256GB SSD K420 Linux GA
$234.98
Dell Precision Tower 7810 Desktop Xeon E5-2623 v4 2.60Ghz 16GB RAM NO HDD NO OS
$100.00