@theroar84 :-
To add to m'colleague's points above, technically /mnt/home is a sym-link to
.....and /mnt/home is a location in the filesystem totally unique to Puppy. You'll not find this on ANY 'mainstream' distro that uses the traditional 'full' install (requiring a dedicated partition all to itself), since it's all to do with the layered file-system used by your average Puppy.
/Mnt/home is the location of the Puppy 'system' files, in one of the 'layers' of the file-system stack (as bigpup quite rightly says, this location does not in fact exist until the moment a 'save' is created at first 'shut-down'.....except as locations in the 'virtual' file-system in RAM where our Pup runs for the duration of a session).....along with pup_ro2, pup_ro3, pup_ro4, etc.
These are read-only 'layers' (hence, 'ro'); I'm no expert with this stuff, and am happy to be corrected, but as I understand it these latter are individually assigned to things like the 'alphabet' drvs, firmware SFSs, the kernel (??? - not sure about this one), and/or any other SFS packages the individual may decide to 'load'......in other words, every SFS package has its own individual layer in the system (probably assigned as part of the SFS 'on-the-fly' loading mechanism).
pup_rw also resides at this same level; this is the 'save' itself - the one part of the stack that is not just readable but ALSO 'writeable' (hence, 'rw')..
I believe the term '/mnt/home' was chosen mainly because it's an easier-to-understand, 'human-friendly' label that people can get their heads around more readily......it is, after all, the 'home' of the highly-compressed system files, the very items that go to make up the marvellous & highly-unique creation known as a 'Puppy'! The average user doesn't need to know about all the different layers that are used in said construction; indeed, the sole fact that most are interested in is that once everything is re-combined, what John Doe 'sees' & interacts with on his screen is no different to what you would expect to see with any other Linux distro.
(If any user IS interested in the tech-specs, mechanics & the 'nitty-gritty' of Puppy's operation, we have plenty of members who are more than willing to accommodate you!)
I just felt a bit more detail wouldn't go amiss at this point.....
Mike.