Vm0

Creation of the file "dev_hdd0/vm/vm0"

Not a whole lot is known about this file. It is created most likely during FW install. When the file is removed, it is created again. On COBRA CFWs/PS3HEN, this file is accompanied by cobra_cfg.bin. As well as mamba_cfg.bin, if MAMBA has been used.

Possible reasons for this file

It was speculated this could be some form of dev_swap, but we're still not sure. I assumed it was either the virtualized web browser memory (yes, the browser uses virtual memory!) or possibly the bank used for the currently paired PADs.

File analysis

The file is not human readable. It has no headers. The size is exactly 503,316,480 bytes. The output from "file" in bash is data. The size stays the same for every creation, however the contents can vary. doing md5sum on two files from different consoles, the hash is different.

File 1 (my file)

hash: 318c09145d92e1d21e9fa74a867be977

File 2 (the one linked below)

hash: 15fc6da08f5ea8c3c3f1318405d89a05

First chunk of data

File 1: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 F3 00 00 00 00 00 00 80 00 00 00 00 00 01 72 FF C0 70 00 00 00 00 00 00 00 70 8D 00 08 FF FF FF FF 58 58 58 58 00 00 00 00 00 00 00 00 70 00 00 34 70 00 00 34 70 00 00 3C 70 00 00 3C 70 00 00 44 70 00 00 44 70 00 00 4C 70 00 00 4C 70 00 00 54 70 00 00 54 70 00 00 5C 70 00 00 5C 70 00 00 64 70 00 00 64 70 00 00 6C 70 00 00 6C 70 00 00 74 70 00 00 74 70 00 00 7C 70 00 00 7C 70 00 00 84 70 00 00 84 70 00 00 8C 70 00 00 8C 70 00 00 94 70 00 00 94 70 00 00 9C 70 00 00 9C 70 00 00 A4 70 00 00 A4 70 00 00 AC 70 00 00 AC 70 00 00 B4 70 00 00 B4 70 00 00 BC 70 00 00 BC 70 00 00 C4 70 00 00 C4 70 00 00 CC 70 00 00 CC 70 00 00 D4 70 00 00 D4 70 00 00 DC 70 00 00 DC 70 00 00 E4 70 00 00 E4 70 00 00 EC 70 00 00 EC 70 00 00 F4 70 00 00 F4 70 00 00 FC 70 00 00 FC 70 00 01 04 70 00 01 04 70 00 01 0C 70 00 01 0C 70 00 01 14 70 00 01 14 70 00 01 1C 70 00 01 1C 70 00 01 24 70 00 01 24 70 00 01 2C 70 00 01 2C 00 00 00 00

Decoded text: ���������������ó������€������rÿÀp�������p��ÿÿÿÿXXXX��������p��4p��4p��<p��<p��Dp��Dp��Lp��Lp��Tp��Tp��\p��\p��dp��dp��lp��lp��tp��tp��|p��|p��„p��„p��Œp��Œp��”p��”p��œp��œp��¤p��¤p��¬p��¬p��´p��´p��¼p��¼p��Äp��Äp��Ìp��Ìp��Ôp��Ôp��Üp��Üp��äp��äp��ìp��ìp��ôp��ôp��üp��üp���p���p���p���p���p���p���p���p��$p��$p��,p��,����

File 2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 F3 00 00 00 00 00 00 88 00 00 00 00 00 01 59 FF C0 70 00 00 00 00 00 00 00 70 A6 00 08 FF FF FF FF 58 58 58 58 00 00 00 00 00 00 00 00 70 00 00 34 70 00 00 34 70 00 00 3C 70 00 00 3C 70 00 00 44 70 00 00 44 70 00 00 4C 70 00 00 4C 70 00 00 54 70 00 00 54 70 00 00 5C 70 00 00 5C 70 00 00 64 70 00 00 64 70 00 00 6C 70 00 00 6C 70 00 00 74 70 00 00 74 70 00 00 7C 70 00 00 7C 70 00 00 84 70 00 00 84 70 00 00 8C 70 00 00 8C 70 00 00 94 70 00 00 94 70 00 00 9C 70 00 00 9C 70 00 00 A4 70 00 00 A4 70 00 00 AC 70 00 00 AC 70 00 00 B4 70 00 00 B4 70 00 00 BC 70 00 00 BC 70 00 00 C4 70 00 00 C4 70 00 00 CC 70 00 00 CC 70 00 00 D4 70 00 00 D4 70 00 00 DC 70 00 00 DC 70 00 00 E4 70 00 00 E4 70 00 00 EC 70 00 00 EC 70 00 00 F4 70 00 00 F4 70 00 00 FC 70 00 00 FC 70 00 01 04 70 00 01 04 70 00 01 0C 70 00 01 0C 70 00 01 14 70 00 01 14 70 00 01 1C 70 00 01 1C 70 00 01 24 70 00 01 24 70 00 01 2C 70 00 01 2C 00 00 00 00

Decoded text: ���������������ó������ˆ������YÿÀp�������p¦��ÿÿÿÿXXXX��������p��4p��4p��<p��<p��Dp��Dp��Lp��Lp��Tp��Tp��\p��\p��dp��dp��lp��lp��tp��tp��|p��|p��„p��„p��Œp��Œp��”p��”p��œp��œp��¤p��¤p��¬p��¬p��´p��´p��¼p��¼p��Äp��Äp��Ìp��Ìp��Ôp��Ôp��Üp��Üp��äp��äp��ìp��ìp��ôp��ôp��üp��üp���p���p���p���p���p���p���p���p��$p��$p��,p��,���� https://mega.nz/file/WdsiQZgK#bzX30v39aTP6CJOgGE1ctHi4LLNU39-aAWuoXICpFRg

Final thoughts

We still know very little about this.

Written by JamesIsWack (aka kernaltrap), and file supply from Hydrogen.