While snooping around the stock init script, I spotted a variable, home, in the mountdata function standing out from the crowd. After doing some quick tests, the preliminary results are summarised as follows,
Prerequisite: The persistent overlay (.img, .aes or .inf) being on the same partition as the KNOPPIX file.
Functionality: Loading a specific persistent overlay at the boot time.
Usage: knoppix home=/mnt-system/foobar/dummy
*The dirname and basename cannot contain any whitespace characters.
*The basename needs to be unique if there are more than one overlay files in the same folder because the suffix cannot be part of the argument.
Atari Power Cube 800XL, 600XL, 65XE, 130XE USB-C Power Supply PSU
$11.25
Rare Vintage Collectible Original Atari 800 Home Computer With Case - UNTESTED
$219.99
Atari 1030 Modem With Modemlink In Box With Styrofoam Insert 600XL 800XL 130XE
$98.97
Atari 400/800/XL/XE Computer SIO2PC - PC/Mac Disk Drive Emulator Adapter/Device
$15.25
Vintage Atari 800XL Computer With Original Box
$140.00
A8picoCart Atari 130 / 65 XE 800 / 1200 XL XEGS multicart UnoCart clone game
$32.95
Atari Mega STE or TT Keyboard. Used. Untested.
$300.00
Vintage Atari 410 Program Recorder Player For Atari 8-Bit Computers As Is
$14.97
ATARI Home Computers HOME FILING MANAGER Software **SEALED NEW** 1982
$25.00
Rare Vintage Atari XF551 Floppy Disk Drive Station for 400, 800, 600, XE and XL
$300.00