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?
Dell PowerEdge R630 8SFF 2.6Ghz 20-Core 128GB Mem 2x10G+2x1G NIC 2x750W PSU
$399.04
Supermicro 4U 36 Bay Storage Server 2.2Ghz 16-C 128GB 1x1280W Rails TrueNAS ZFS
$716.98
SRF8Z Intel Xeon Gold 6244 8-Core 3.60GHz 24.75MB 150W Processor ***New Other***
$1590.00
Intel XEON E5-2699 V3 CPU PROCESSOR 18 CORE 2.30GHZ 45MB L3 CACHE 145W SR1XD
$45.00
Intel Xeon E5-2680 v4 2.4GHz 35MB 14-Core 120W LGA2011-3 SR2N7
$17.99
Intel Xeon Gold 6140 SR3AX 2.3GHz 18-Core Processor CPU
$44.99
Intel Xeon Gold 6144 SR3TR 3.50GHz 24.75MB 8-Core LGA3647 CPU Processor
$175.00
Intel Xeon e5-2698v3 2.30Ghz 16 Core 32 Thread CPU SR1XE
$20.99
HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram Dual 256GB SSD K420 Linux GA
$234.98
INTEL XEON GOLD 6148 PROCESSOR | 2.40GHZ | SR3B6
$99.99