Did you try the options in:
File Manager PCManFM > Edit > Preferences > Volume Management > Auto-mount
Unlike all previous versions, 7.6 doesn't automatically mount CDs. I have to type "mount /media/sr0".
Did you try the options in:
File Manager PCManFM > Edit > Preferences > Volume Management > Auto-mount
That doesn't help.
Ok, found the problem. You have to add kernel option:
block.events_dfl_poll_msecs=1000
Looks like a strange command to me but if it works ...
Looks to me like more Linux gibberish. Sure, Linux experts enjoy saying to noobs "you just have to add a kernel option". It certainly demonstrates their superiority and better understanding. But many average users have no idea exactly how you "add a kernel option". It isn't hard to understand why Linux is still marginalized on the desktop.
---
Verifying of md5 checksum and burning a CD at slow speed are important.
At least it's an easy fix, just add it to syslinux.cfg (assuming your knoppix is on a USB stick).
My Knoppix 7.7.0 is a LiveUSB on a Dell Inspiron which has a r/w cd/dvd drive in it.
This implies legacy boot and a remote possibility of systemd messing with things.
I was surprised that cds were not always being recognized, along with other media.
However, I finally noted that, for my set-up anyway, a cd physically in place
in the cd drive reader during boot will be recognized, whereas a cd added after boot
will not be recognized.
So, one work-around for Knoppix 7.7.0 LiveUSB legacy boot users is simply just to
re-boot with the cd in place. I would not be surprised that this problem and work-
around might apply to earlier Knoppix LiveUSBs as well, but I haven't checked this out.
Cisco Systems NCS2K-20-SMRFS-L optical multiplexor CISCO EXCESS
$3599.00
Cisco SG110 24 Port Gigabit Ethernet Switch w/ 2 x SFP SG110-24
$117.00
Cisco RV160 VPN Router 4 Gigabit Ethernet Ports RV160-K9-AR
$80.00
Cisco QSFP-40/100-SRBD 100GE/40GE BASE-SR-BiDi LC QSFP Transceiver Hologram 1PCS
$200.00
Cisco WS-C3850-48P-L 48-Port Gigabit 3850 PoE Switch w/ 715W+ C3850-NM-4-1G Mod
$83.00
Cisco Catalyst WS-C2960-48TT-L V02 48 Port Fast Ethernet Switch
$34.00
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$38.99
Cisco WS-C3650-24PS-E 24-Port PoE+ Gigabit Switch with Racks 90 Day Warranty
$59.00
Cisco WS-C3850-48P-L 48-Port Gigabit 3850 PoE Switch w/ 715W Network Switch
$41.58
New Open Box - Cisco NM-16ESW 16 port 10/100 EtherSwitch NM
$79.99