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!
VINTAGE OEM IBM Three-Button ScrollPoint Optical USB Mouse (P/N:24P0494)-Grade B
$13.45
OEM IBM Thinkpad Keyboard 46H3846
$10.00
OEM IBM Lenovo ThinkPad T20 T21 T22 T23 T24 02K6620 02K6626
$24.99
IBM Model M Keyboard Flipper and Buckling Spring - Set of 5 - Genuine OEM
$3.49
IBM DOS 6.1 OEM VERSION 5.25" DISKS NEW SEALED
$24.99
IBM Keyboard T440 T440s T440p T431s Backlit 04X0139 OEM
$24.00
Genuine OEM IBM Model M2 Keycaps for Missing "Clicky" Keyboard-Keys and springs.
$3.00
IBM Lenovo oem keyboard,Part No 42T3970 FRU# 42T4002
$19.50
IBM OEM DBOA-2720 720MB 2.5" IDE 44-Pin LAPTOP HARD DRIVE HDD Vintage TESTED
$67.90
Lexmark/IBM 6190653 Black Developer (500k Pages), for the Lexmark 3835 printer
$247.98