not work <save files>

[zxldf]

im just boot from ram, and installed nvidia driver , see install success message
next - im go in > save files, created success.
next > edit <Changes> to my patch saved file LIKE: /mnt/ada1s1/saved file !
but. i have message:
CANT SAVE FILES. READ-ONLY
WTF?????
- okay, i log off, and log in as ROOT.
AGAIN - READ ONLY.
W T F x2

OKAY. BOOT FROM WINDOWS.
OPENED ULTRA ISO.
open system image
add portreus file from windows ( i try added changes line like this: /mnt/ada1s1/saved file - not work! Try add /boot/customFolder/saved file TOO NOT WORK )
save as new .iso image
booting... NOT SEE NVIDIA PACKAGE. WTF x3 ?! WHATS WRONG WITH THIS SYSTEM?
WHY <SAVE FILES> NOT WORK? WHY I CANT SAVE NVIDIA DRIVER ? IM NOT WANT USE NOUVEAU ! +_+

how i can DO it?
and why so UN friendly?
trouble with SAVE, nvidia 340 installesd.

[Ed_P]

What ISO did you download? How did you install it? Where did you install it, USB or hdd? What is Ultra ISO?

Added in 36 minutes 41 seconds:
Ultra ISO creates CD/DVDs!! And you wonder why updates are not writable!!