Originally Posted by szboardstretcher
From the most recent post it seems that /mnt/cdrom exists now but the device (/dev/mtdblock5) does not. So OP is trying to mount a device that does not exist...
A device should be created automatically if the corresponding physical device is connected to the computer. The questions remain:
- what is this physical device?
- why is it expected to appear at /dev/mtdblock5?
- what is the kernel telling you about this device (eg look in dmesg output etc)?