Re: F34 Cloud Amazon AMIs unbootable after updates

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There is an issue with Xen instances (e.g. t2.small) - see
https://bugzilla.redhat.com/show_bug.cgi?id=2010058.

What I saw was that it would hang for a couple of minutes waiting for
the disk to appear, then give up and go into emergency mode.

The workaround is to edit the Dracut script that decides which modules
to include in the initramfs - to ensure that xen-blkfront is included.

Your issue might be something else - I didn't see a panic, like in the
screenshot. You could try and get more of the log as plain text by
going to Actions → Monitor and troubleshoot → Get system log.

Regards,

Rich

On Thu, 7 Oct 2021 at 08:19, Richard W.M. Jones <rjones@xxxxxxxxxx> wrote:
>
> On Thu, Oct 07, 2021 at 12:46:11AM -0400, Christopher wrote:
> > Running on EC2, it's kinda hard to get good information from a system
> > that won't boot. The machine won't boot to the point of being able to
> > capture the system log, and the screenshot of the instance doesn't
> > appear to be super helpful: https://imgur.com/a/4PWcRSg
>
> Can you hit shift + PgUp and capture as much of the preceeding output
> as possible?
>
> Also it's apparently possible to connect a serial console:
> https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/connect-to-serial-console.html
> which would be the ideal way to debug this.
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
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-- 
Richard Fearn
richardfearn@xxxxxxxxx
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