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?
HGST Ultrastar HE10 HUH721010ALE600 10TB SATA 6Gb/s 7200RPM 3.5" Enterprise HDD
$74.99
WD4000FYYZ Western Digital 4TB SATA 3.5 Hard Drive
$149.99
WF12F DELL 1TB 7.2K 6GBPS SATA 2.5'' HDD HARD DRIVE ST91000640NS 0WF12F
$25.00
Western Digital WD60PURZ 6TB Hard Drive SATA6 Gb/s 64MB Cache 3.5 Inch
$109.99
HGST Ultrastar DC HC520 12TB SATA 6Gb 256MB 3.5" Enterprise HDD- HUH721212ALE601
$82.99
Seagate Exos 7E10 ST2000NM000B 2TB 7200RPM SATA 6.0Gb/s 3.5" Internal Hard Drive
$29.99
2 PACK Seagate ST1000LM035 Mobile HDD 1TB 2.5" SATA III Laptop Hard Drive
$27.25
TOSHIBA MD04ABA400V 4TB 128MB Cache SATA 6. 0Gb/s 3. 5"
$18.00
WD HDD Ultrastar DC HC520 HUH721212AL4205 12TB 3.5" SAS Server Hard Disk Drive
$45.23
WD 16TB Elements Desktop, Certified Refurbished Hard Drive - RWDBWLG0160HBK-NESN
$174.99