I've noticed that if I use a persistent image file and for some reason it gets corrupted (powering off abnormally) that I'll get a bunch of filesystem errors in dmesg. I can fix it by booting with the "noimage" cheat code, like "knoppix64 2 noimage" and then run "fsck.ext2 /mnt-system/KNOPPIX/knoppix-data.img" and then "sudo reboot".
It'd be really nice if there were an automatic check of the ext2 image when knoppix boots. It would also let you know if errors have crept into your filesystem since knoppix still works but you see weird messages like "unable to write /etc/fstab".
Cisco Systems NCS2K-20-SMRFS-L optical multiplexor CISCO EXCESS
$3599.00
Cisco RV320 Dual WAN VPN 4 Port Gigabit Router w/ Web Filtering RV320-WB-K9-NA
$374.00
Cisco SG110 24 Port Gigabit Ethernet Switch w/ 2 x SFP SG110-24
$117.00
Cisco ASA5525-FTD-K9 Security Appliance with FirePower Services
$1000.00
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 CBS350-24FP-4G 28 Port PoE Managed Ethernet Switch
$319.99
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
Cisco C9200 48-Port Gigabit Network Switch With Ears P/N: C9200-48T-E Dual Power
$799.97
New Cisco C9200-NM-4X Catalyst 9200 Series Network Module 4 X 10GE *MINT*
$429.97