PS3 HDD free space

[Moronz]

So I moved a 160gb from a semi dead ps3 to a slim with NOR memory, The HDD is in good health and was working fine in the dying ps3 from where it came from
When I installed it on the new ps3 it said that it was going to format it and then I needed to reinstall the cfw which I did
The system says that the storage is 149gb and had 110gb left free as a fresh install, I thought it was weird to have only 110gb free when I have nothing installed, I found that 8% percent is used by the system and found a thing in the cfw tools that liberates some of that used space, but even then I should have more than 110gb free of the 149gb. I did reformat with or something from the xmb setting and it liberated 10gb more. I think I am still missing space
What is going on?

 

[Berion]

160GB isn't the same as 160GiB. XMB shows you GiB but naming it improperly as GB.
https://www.wolframalpha.com/input?i=160GB

From that value, cut 8% from user partition (dev_hdd0). And also cut off 2GiB for cache partition (dev_hdd1/) and if it is NOR model in addition 256MiB for VFLASH partition.

In summary, normally you should lost in your case ~12GiB, so ending with ~136GiB free space. Maybe you have OtherOS partition? Then calculations could match. Could you show me what lsblk returns to you?
https://www.psx-place.com/resources/ps3-hdd-decryption-helper.1293/
https://www.psx-place.com/threads/tutorial-hdd-mounting-and-decryption-on-linux.23308/

 

[Moronz]

Yes, I know companies fool you which is why I said 149gb is what the system tells me I really have
>Maybe you have OtherOS partition?
Not that I know, the HDD came from another PS3 with one of the latest cfw Evilnat, is it that the problem?
I will try to the mount thing on PC later when I'm at my PC

 

[Berion]

OtherOS will NOT survive formatting on PS3 under condition it is CFW without OOS patches and you choose option from recovery: Restore PS3 System. Otherwise it will stay in shadows since fw 3.21. ;]

If you don't want bother with decryption stuff to diagnose, just go on Windows run diskmgmt.msc and make MBR/GPT (so called initializing) which will wipe out PS3PT and since then, for PS3 disk become clear, ready to format. On Linux you can overwrite by dd first 512 bytes and that be sufficient.