Ok today i encountered another prob with Knoppix:
I have noticed that during bootup knoppix doesnt display the correct amount of system RAM instead of 262144 kb that i get form bios on startup, knopix says: "total memory found 256532 kb"....
So i tried to make it recognize 256mb with knoppix mem=256M at bootup.... and after few seconds it displayed a following error meesage:
and after that i had to pull the plug....Code:initrd extends beyond end of memory (0xfff5db4 > 0xfff0000) Kernel panic : VFS : unable to mount root fs on 01:01
Why does this happen? what happened to cca 5 megs of my ram? is there a way to fix this?
PS. i use knoppix 3.1, if that matters

Lenovo - IdeaPad Slim 3 15.6" Full HD Laptop - AMD Ryzen 5 40 2025 - 8GB Memo...
$399.99
Lenovo Thinkpad T14 Gen 2 14" 16GB, Thunder Black
$313.00
Lenovo ThinkPad L14 Gen 3 Laptop 14” FHD Core i5 12th 16GB RAM 512GB SSD Win 11
$374.99
Lenovo Thinkpad E15 Gen 2 8GB RAM 256GB SSD Intel Core [email protected] Laptop
$220.36
LENOVO THINKPAD T14s GEN 2a Ryzen 7 PRO 5850U 1.9GHz 16GB 256GB TOUCH - NO OS
$299.95
Lenovo ThinkPad L14 Gen 1 i5-10210U 16GB 512GB SSD Win 11 Pro Very Good
$229.99
Lenovo Thinkpad T14 Gen 2i 14" 16GB 512GB, Black
$313.00
Lenovo IdeaPad 5 2-in-1 15.3" WUXGA Touch Ryzen AI 7 445 16GB 512GB SSD IR Cam
$659.00
Lenovo Thinkpad E15 15.6" Laptop i5/i3 8GB RAM Up to 1TB SSD HDD Tested Working
$136.55
Lenovo ThinkPad E15 Gen 4 15.6in FHD Ryzen 7 16GB RAM 512GB SSD Radeon
$280.00