Whats the difference between Pure OS Live vs OEM

Whats the difference between pure os live and oem? I’m considering buying a usb stick with either one installed. When I purchase a Laptop in a month or so. But I don’t know that much about either to be honest. Maybe someone could give me a link to info. What is the capacity of these usb sticks they optionally sell with the laptops?

Also does anyone know what the difference would be between NVMe vs NVMe pro for storage? I’m just going to be using this laptop mostly for web development. I’m assuming theirs not much point in getting pro?

What are the differences between PureBoot and CoreBoot?

If you got any links for info for this stuff that would be great.


It is nice to have, with Purism Logo, small and practical 32GB USB 3.0 Flash Drive … especially if you are not about to make one PureOS Live test/installation media yourself.

I think for your purposes you want the live USB vs the OEM one. OEM is generally for manufactures or IT or someone(s) who wants to put the same thing on a bunch of different machines.

Off the top of my head, I would venture to guess that “Live” isn’t installed on your computer. That’s the point of it I think.

Live runs directly from your usb-thumb-drive (or whatever your preferred boot-able install medium happens to be at the time).

Live should NOT be used as a 1 to 1 PERFORMANCE comparison to a native bare-metal install UNLESS you use the exact same storage media in BOTH cases …

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Especially if you use a traditional CD instead of USB. It has to “load” any program you want to run which means seek time.

Both install PureOS. Said simply, Live lets you setup your username and password from the installer and OEM goes through that on your first boot after installation. There is a little more to it but that’s basically it.


in other words OEM install is usually picked by individuals/groups that want to ACT as an OEM :slight_smile:

naturally if you care about privacy/security you would DIY rather than RUN with the OEM install yourself …

OEM is a good choice for me when i want to setup a GNU/Linux OS for a neighbor that i do NOT want to spy ON :slight_smile:

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I have an older laptop that I installed PureOS on. I first booted in to PureOS from the Live media to see if I would like it. After examining it and really liking it, I decided to install it. So I ran the install from within the Live media environment. Upon first boot from the hard drive, the display drivers wouldn’t allow the graphical environment. All I could get was a bash prompt. This surprised me because if it works from the live media, why won’t it install those same drivers to the hard drive? It was an older laptop so I expected to see support for the older hardware (not cutting edge). I installed Ubuntu 18.04 and everything there including the display drivers for the graphical environment worked just fine. For this reason, I hesitate to install PureOS on any PC that does not run on Purism hardware. I might buy a Purism laptop or a Librem Mini. But with all of the security precautions, I can’t trust that PureOS will have the drivers I may need.

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That has happened to me also with other O/S live distros. That’s the tipping point where I decide not to install it. I have a laptop where I put dozens of distros (for laughs) and use GRUB to pick one at boot up.

(An exception was one old text based distro, I forget which one it was, but it would “talk” to you in voice with an old DOS looking menu. It was fun to watch.)

Also does anyone know what the difference would be between NVMe vs NVMe pro for storage?

I love this question because I’ve found myself wondering the same thing many times recently. It seems to come down to performance, which is maybe 60% better for pro, at best, given the same manufacturer and capacity.

As with CPUs sporting a few hundred extra MHz, it’s probably not worth the price in most cases, although because it’s cheaper than RAM, one could use it in conjunction with a minimal RAM installation in order to obtain better disk-intensive (such as virtual machine) performance more cheaply. RAM is maximum performance at maximum cost, assuming you run the taxing application from a RAM disk (and hopefully manage to copy back to real media before the system crashes or shuts down).

If you run lots of VMs, then optimal economics looks something like this: (1) lots of cores, (2) lower CPU speed, (3) paired DIMMs (to provide double the bandwidth), (4) small RAM capacity (to really just act as a cache for hot pages), and (5) tons of NVMe (maybe pro, maybe vanilla, but not classic SSD) disk space.

If you run a Qubes rather than PureOS, then effectively everything lives in a VM, so this is all the more relevant.

also mTBW (maximum-tera-bytes-written) warranty from the manufacturer is higher on the Pro version < if most of the workload is write intensive. then there are the data-center options that are way more expensive …

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it’s usually just a Samsung EVO 980 vs 980 Pro (or whatever their current model is)