Using ostree

[Liam Proven]

On Fri, 9 Jul 2021 at 15:39, Tom H <tomh0665 at gmail.com> wrote:
>
> Fedora Silverblue is an ostree version of Fedora that installs on bare metal.

I am aware, and I personally would consider Fedora to be a Red Hat
product; it is in fact the primary thing I had in mind when I said
"Red Hat container-based products".

I know RH tries very very hard to project the message that Fedora is
not RH, it's an independent community product, but that is basically
PR, marketing. Fedora is the rolling alpha for what will in time
become RHEL. You will note that I did *not* specify RHEL.

> Googling also yielded https://windriver.com/products/linux/ too, but
> AFAIk it's rpm-based, not that it really matters given that AFAIK
> "/usr" is ro and you can't use package managers.

I can't see that site -- I get a 403 error.

I don't know about Wind River doing a Linux. AFAICR Wind River was
known for VXworks, and is now part of Intel.

> You must need root access on ostree to update your system, no?! So
> it's not quite the same as android or iOS.

That is not the part of the comparison to focus on. :-) The point is,
you don't update it piecemeal, package by package, using a package
manager. You periodically get a whole new OS release from the vendor,
it entirely replaces your whole OS, and then that's it until the next
update.

> I've never thought of core as equivalent to ostree.

Again, you are seizing on the wrong part of this.

I am not saying it is equivalent to OSTree.

I am saying it has a comparable update model to, say, Fedora
Silverblue, or Endless OS, or SUSE MicroOS.

The root filesystem is read-only, you can't install packages in the
conventional way, and system updates are on a whole-OS basis, and
atomic, i.e. with rollback in case of problems.

> ostree's packaged Ubuntu.

Do you mean Ubuntu  has packaged ostree?

If so, I am surprised, but OK. I agree with the rest of your comment, though:

>  There's no repository for using it. So,
> you'd have set up the whole infra to do so.

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