Getting started

Ubuntu Core runs on an extensive range of hardware. It’s been designed to run your own customised image, for which there’s a straightforward image-building process. But pre-built testing images are available for amd64 and Raspberry Pi platforms, and these are a great way to explore Ubuntu Core’s features and evaluate its potential.

Note: See Supported platforms for more details on which images are available for which platform, and What is Ubuntu Core for more general details.

There is a typo on this page , look for

-netdev ser

It should be

-netdev user

BTW any plan to support non UEFI x86_64 devices ?

cc: @lool

Typo fixed, thank you!

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You’re welcome,

I think there is an other doc page that should be fixed,
It miss the UEFI file arg… or maybe it can just redirect to the reference documentation page.

BTW may I suggest also to add

-cpu host

To prevent this message:

qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]

It works without, but it can be misleading.

cc: @lool

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It seems the getting started and documentation is no longer correct as snap install nano throws an error.

root@nuc:~# cat /etc/os-release 
NAME="Ubuntu Core"
PRETTY_NAME="Ubuntu Core 20"

root@nuc:~# snap list
Name       Version        Rev    Tracking       Publisher   Notes
bluez      5.48-3         284    latest/stable  canonical✓  -
core       16-2.51.3      11420  latest/stable  canonical✓  core
core18     20210722       2128   latest/stable  canonical✓  base
core20     20210702       1081   latest/stable  canonical✓  base
nextcloud  21.0.3snap2    28417  latest/stable  nextcloud✓  -
pc         20-0.4         115    20/stable      canonical✓  gadget
pc-kernel  5.4.0-81.91.1  811    20/stable      canonical✓  kernel
snapd      2.51.3         12704  latest/stable  canonical✓  snapd

root@nuc:~# snap install nano
error: snap "nano" requires classic confinement which is only available on classic systems

root@nuc:~# sudo snap install nano-strict
nano-strict 5.2+pkg-353f from 林博仁(Buo-ren, Lin) (brlin) installed

Thanks for highlighting this issue. This part of the tutorial has moved to Using Ubuntu Core, but we also updated the example to use nano-strict (as your suggested example shows). Thanks!

This page is confusing as it starts off talking about installing on RPi, but switches into a QEMU example that clearly is targeting Intel x86 64.

Should that last SSH command to log into the QEMU session not be connecting to “localhost”?

1 Like

The link entitled “Supported Platforms” actually takes you to “System Requirements”.

You might want to drop UC16 and UC18 from the list of supported releases.

UC16 is supported until 2026, UC18 until 2028 (unlike for classic there is no 5y/10y separaton
of community vs commercial support here), so both are fully supported for a full 10y…

…what is not supported by snapcraft anymore is building snaps for their bases and that should be mentioned…

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Given that the QEMU page is coming up in the order of pages, I’m not sure it’s worth covering here in any detail at all; just point at the QEMU page.