I have a Knoppix 4.0 DVD that came bundled with a computer magazine. The DVD seems to run fine. Nevertheless I wanted to check data integrity by entering "testcd" at boot. The computer began checking files, but after a while the DVD drive was spinning down and the screen turned dark. When I pressed a key, the screen came back, and I could see that the computer was testing the KNOPPIX2 file when it got stuck. I tried testcd with two different computers and never got beyond the KNOPPIX2 file.
Can anybody confirm this issue? Is "testcd" supported by the DVD versions of Knoppix?
1TB/2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage lot
$80.39
USB Flash Drive Memory Stick Pendrive Thumb Drive 4GB, 8GB, 32GB, 64GB 128GB LOT
$249.37
Type C USB 3.0 Flash Drive Thumb Drive Memory Stick for PC Laptop 1TB 2TB lot
$73.29
Lot USB Flash Drive Memory Stick Pendrive Thumb Drive 2GB,4GB, 8G, 32G, 64G 128G
$217.13
New TESLA OEM Model S,3,X,Y USB Flash Drive for Dashcam & Sentry Mode 128GB
$18.99
2TB USB 3.0 Flash Drive Memory Photo Stick for iPhone Android iPad Type C 3 IN1
$16.72
64GB USB 3.0 Flash Drive USB Memory Stick High Speed Retractable USB Thumb Drive
$6.99
Sandisk 16GB 32GB 64GB 128GB Cruzer Blade Flash Drive Memory Stick USB Lot Pack
$4.99
SanDisk Cruzer Glide USB 3.0 16GB 32GB 64GB 128GB 256GB Flash Drive Memory Lot
$276.48
1/ 10/ 100pcs USB 2.0 2GB, 4GB ,8GB ,16GB ,32GB ,64GB 128GB USB Flash Drives Lot
$325.50