PS3 Wanna get help

[SeeenW]

Does it possible to install linux in 4.91 cfw (dex)?i have a fat ps3 and i successfully installed petitboot but i dont know how to do next...i tried red ribbon linux but i stucked in its "creat_hdd_region.sh",it has an incredible error and i dont know how to fix it.Then i tried t2 linux(21.4-ppc6432-minimal-xorg-gcc-glibc),i started it installation in petitboot and it reboot successfully but it closed all usb device and i couldnt control it.
So does downgrade to 4.81.2 and install red ribbon is the only way?i dont know what to do next...
BTW,i just wanna discover how linux running in ps3 and make this ps3 be a server if it is ok.

 

[Prt23]

You need to reformat the entire HDD from the consoles Recovery menu because it doesnt have any free partitions that arent encrypted, and the firmware u are on needs to have a specific patch. You would need to install original otheros++ on 3.55, or install evilnats 4.89.3 CFW which also has that patch:https://www.psx-place.com/threads/cfw-4-89-3-evilnat-cobra-8-4-cex-dex-pex.37294/
"If you want to install OtherOS on PS3's internal HDD you first need to go to Recovery Menu and select
[Restore PS3 System], this will format the HDD and create a partition for OtherOS. Remember to make
a backup of all your data before"
in the Warnings section of the before mentioned link