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?
Cisco C9300-48P-E Catalyst 9300 PoE+Network Essentials 48 Switch 1 Year Warranty
$1375.00
Cisco ASR1004 Aggregation Services 10 Ports Router Chassis 1 Year Warranty
$172.00
Cisco Nexus 48-Port 10G SFP+ Switch N9K-9396PX w/ 9K-M12PQ 12-Port 40G QSFP
$249.99
Cisco C819H-K9 Secure Hardened 4 Ports Router 1 Year Warranty
$365.00
Cisco WS-C3850-48P-L 48-Port Gigabit 3850 PoE Switch w/ 715W+ C3850-NM-4-1G Mod
$83.00
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$38.99
Cisco QSFP-40G-SR-BD BiDi Short-reach Transceiver, 1 Year Warranty
$17.25
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
Cisco WS-C3850-48F-S Catalyst 3850 48x 1GB PoE+ RJ-45 1x Module Switch
$185.00
Cisco Catalyst 3850 WS-C3850-48U-S 48-Port UPOE Gb Switch w/ NM-2-10G (BH)
$134.96