Changes

=== Linux(Beta) ===The To run OSCAR on a Chromebook, it must have a feature added to recent ChromeBooks is called '''Linux(Beta). You may ''', also find this feature described by the codeword known as '''Crostini'''. If you your ChromeBook supports Linux(Beta), then you can run OSCAR on it. If it doesn't, then you can't.

== Does my = I'm thinking of buying a ChromeBook have an SD Card slot, how can I tell if it supports Linux(Beta)? ===It almost certainly doesTo learn how to answer that, but it might go to this page [[What ChromeBooks support Linux(Beta) aka Crostini?]] <!-- If this is to be a slot for a micro SD Card. Most CPAP machines use a full size SD Card though. If your ChromeBook has a micro SD Card slotshort section, then you can still use it, but you must either* Use 's probably better to keep it in line rather than on a micro SD Card to full size SD Card adapter (many micro SD Cards are sold with oneseparate page.* Use your full size SD Card I think I went too far with a USB adapter which will fit in a USB port separate pages in your ChromeBookthe Oscar Help system. (Some ChromeBooks may have only USB-C ports, so check this before buying an adapter). ->

=== I'm thinking of buying already have a ChromeBook, how can I tell if it supports Linux(Beta)? ===To learn how to answer that<!-- This sentence doesn't really add any value You could follow the instructions above, but as you already have one, go it's probably easiest to this page [[What ChromeBooks support Linux(Beta) aka Crostini?]]just see if it can be enabled. -->

== I already have a ChromeBook, how can I tell if it supports Linux(Beta)? ==You could follow the instructions above, but as you already have one, it's probably easiest to just see if it can be enabled. === The first thing to do is to make sure your Chromebook is up to date. ===

=== What type of CPU do I have?===Oscar has several versions, and you need to select the correct version to work with the CPU in your Chromebook. If you have enabled Linux(Beta), then the next stage in the installation process is to learn which kind of CPU your ChromeBook uses. ===To do this, open : *Open the browser, and type chrome://system version and press enterSearch <!-- "Search" implies you're using *You will see a list of headings in Bold type foolowed by a software search tool - is this colon, on the case? If not use "Look for" -->for left hand side of the term "uname"page. *To the right of uname, you that there will see text be lots of information about Chrome and Chrome OS*Look for the left side heading '''User Agent:''' * to the right of that tells you what type of CPU you have. this there will likely be AMD, a line in normal font that looks like *Mozilla/5.0 (X11; CrOS aarch64 12871.67.0) or Intel, or you may see  *Mozilla/5.0 (X11; CrOS x86_64 12871.67.0)*We are interested in whether your ChromeBook says aarch64 or ARMv8.x86_64 on that first line after CrOS*If you see Intel or AMDx86_64, then you will need the Oscar package with '''amd64 ''' in its name (see next section), or if *If you see aarch64 or ARMv8, then you will need the Oscar package with '''arm64 ''' in its name. === Does my ChromeBook have an SD Card slot? ===It almost certainly does, but it might be a slot for a micro SD Card. Most CPAP machines use a full size SD Card though. If your ChromeBook has a micro SD Card slot, then you can still use it, but you must either* Use a micro SD Card to full size SD Card adapter (many micro SD Cards are sold with one.* Use your full size SD Card with a USB adapter which will fit in a USB port in your ChromeBook. (Some ChromeBooks may have only USB-C ports, so check this before buying an adapter). ===How do I take a screenshot on a Chromebook?===You may need to create an image of what's on your Chromebook screen if you have problems installing Oscar.  *Hold down the Ctrl + Switch window keys to capture a full screenshot. *Hold down the Ctrl + Shift + Switch window keys to capture a partial screenshot. For a more detailed explanation go to this site: https://www.digitaltrends.com/computing/how-to-take-a-screenshot-on-a-chromebook/ At the moment, April 2020, and Chrome OS Versions 81 to 83, there may be a problem with having OSCAR take a screenshot for you. It will make a screenshot,(which you might want to do to post a display of your CPAP results) but it may be all black, or have blue diagonal lines on a white background.  We expect the Chrome OS developers will fix this, but in the meantime, use the Chrome OS way of taking a screenshot. It still works just fine, eitheras a full screen or partial selectable one.Remember that ChromeBooks do not have function keys by default, and so all Oscar shortcuts using functions keys will be inaccessible with the function key. However they can all be invokes by another method.

Go to that page on your Chromebook, and over on the right side, you'll see the 2 two ChromeBook installation packages labelled

Download the appropriate onefor your CPU. <!-- How do I know which is the appropriated one? Is my Chromebook a 32 or 64? How do I know? Why don't I just download the 64 version - that sounds bigger and better -->

<!-- We can probably delete this bit as I've included the link above I'll include one more link that tells you how to take a screenshot on a Chromebook, so you can post a screenshot of any difficulty you have. It is

That isn't my call:mjphyi DeepBreathing says: Links are OK so long as they comply with our commercial rules - No sites owned by a DME and no sites with a {Buy} button. Otherwise OK. -->