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.
Samsung Galaxy Tab A8 10.5" SM-X200 128GB Wifi Only Tablet Open Box
$149.99
Samsung Galaxy Tab A 8.0" 2019 SM-T290 32GB WiFi Tablet Open Box
$94.99
Samsung - S Pen Creator Edition - White
$40.00
Samsung Galaxy Tab A9 (X110) 64GB 4GB RAM International Version (New)
$129.99
SAMSUNG M393A2G40DB0-CPB 16GB PC4-17000P DDR4-2133 2RX4 ECC
$14.95
Genuine Samsung Book Cover Keyboard for 14.6" Galaxy Tab S8 Ultra | S8 Ultra 5G
$89.99
Samsung Galaxy Chromebook Go, 14-inch, 32GB, Unlocked All Carriers - Silver
$99.95
Samsung 16GB 2Rx4 PC3-12800R M393B2G70BH0-CK0 DDR3 RDIMM - SERVER RAM
$8.90
Samsung - 990 PRO 1TB Internal SSD PCIe Gen 4 NVMe with Heatsink *SEALED*
$110.00
512GB SAMSUNG EVO Plus Micro SD MicroSDXC Flash Memory Card w/ SD Adapter
$21.99