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".
Genuine 45W Power Adapter Charger for Dell DA45NM140 0KXTTW 4.5*3.0mm OEM
$16.99
NEW OEM Dell Inspiron 14 5406 P126G Laptop Battery 11.25V 40Wh JK6Y6 CF5RH
$39.00
OEM WDX0R DELL 42Wh 15 5567 5568 5368 7368 7569 Fair Battery Health
$14.24
NEW OEM DELL (PKWVM) 95Wh Battery 7550 Precision CR72X 17C06 447VR
$79.99
OEM Dell Inspiron 11 13 14 15 17 3000 5000 7000 AC Adapter Charger 65W 4.5mm Tip
$10.99
OEM 130W USB-C Type-C Charger for Dell XPS 15 9500 9570 9575 17 9700 DA130PM170
$35.88
Genuine OEM 65W Dell PA-12 AC Adapter Charger 928G4 06TM1C LA65NS2-01 7.4*5.0mm
$14.99
OEM DELL 65W AC Adapter Charger 7.4mm Latitude 7490 7480 E7440 E7450 E7470 E7270
$11.88
New OEM 90W AC Adapter Charger For Dell RT74M 0RT74M 0VRJN1 VRJN1 LA90PM111
$20.55
OEM 130W Power Adapter Charger For Dell XPS 15 9530 9550 9560 9570 7590 06TTY6
$33.22