[Android Software Development] thereald:
SOLVED !!! Solution down below !!!

[MENTION=6320543]RatchetPanda[/MENTION] [MENTION=4445176]guitardedhero[/MENTION] [MENTION=5079472]sonophilos[/MENTION]

Guys, i'm still kinda depressed regarding my problem, i already talked to sonophilos a few days ago in this thread and he tried to help me out, sadly with no success :(

A few informations:

Device: Samsung Note 3 (SM-N9005 / HLTE)

Rom: Phronesis Note5Port MM 6.0.1 (v1.1)

Kernel: DarkLord-Kernel-Marshmallow-NewUX-hlte-eur-V2.0 (Permissive)

The rom comes already with Viper4Android and Dolby Atmos, which both running flawless and without any problems.

My problem:

When i flash for example Custom RC8.5 Aroma, it installs normally when i choose the "older" Dolby Atmos (when choosing the newer one i get Error 7).

After i boot my system Viper4Andorid always forces me to update/install the drivers, this doesn't happen only once, it happens everytime i reboot and for that reason Viper4Android has absolutely no function (not processing) and Dolby Atmos isn't in my installed App list.

The last part of the Log of Custom RC8.5 Aroma and Stock RC8.5 Aroma,

where the error occurs, when i choose to install "Newer" Dolby Atmos:

Installing Dolby Atmos...
about to run program [/sbin/busybox] with 3 args
mount: mounting /dev/block/mmcblk0p23 on /system failed: Device or resource busy
run_program: child exited with status 255
about to run program [/sbin/busybox] with 3 args
mount: can't find /vendor in /etc/fstab
run_program: child exited with status 1
package_extract_file: can't open /system/su.d/permissive.sh
for write: No such file or directory
set_perm: chown of /system/su.d/permissive.sh
to 0 0 failed: No such file or directory
set_perm: chmod of /system/su.d/permissive.sh
to 755 failed: No such file or directory
script aborted: set_perm: some changes failed
set_perm: some changes failed

Installer Error (Status 7)

Pre 8.5 the Dolby Atmos was in my applist, but were always FC'ing when i tried to open the app.

From RC8.5 i tried "Custom RC8.5 Aroma", "Stock RC8.5 Aroma", RC8.5 Non-Aroma doesn't install (set_perm: some changes failed), which could be for the same reasons as in Aroma installers when i pick "Newer" Dolby Atmos.

On Phronesis Note5Port LP 5.1.1 (v6.5) i never had problems flashing ARISE builds, but i don't wanna go back to Lollipop.

So whatever the problem is, it has something to do with Marshmallow, but i don't get it whast the problem is, cause like i said, preinstalled Viper4Android & Dolby Atmos by the Rom-Dev [MENTION=744557]oluwaponmile[/MENTION] is working flawless...

I appreciate any help and if you need any more informations, just let me know please, i also attached some Screenshots, many thanks for your help in advance guys !

Edit (SOLVED):

The solution came through guitardedhero's question, he asked me how much System space is left after Rom Installation, the space is enough, but I also flashed SamsungsSans v6 and 2 other things after installation and that's why I had absolutely 0 Bytes System space left after flashing RC8.5 Aroma and thats what caused all the trouble.

So I uninstalled the font Pack and flashed again and everything is working fine now, and I'm back in listening to the awesome Sounds *WOOT*