[help wanted] log ssh cmd errors

[kakaZhou719]

Issue Description

Type: feature request

Describe what feature you want

Sealer uses ssh cmd to execute some Linux commands, but we do not know the real error output message For example, in the following error, we do not know the real cause.

so we can log ssh cmd error to make it easier to know what went wrong.

Additional context

Add any other context or screenshots about the feature request here.

[Daz-3ux]

I want to do this, can you assign me : )

[kakaZhou719]

I want to do this, can you assign me : )

hhh, feel free to pr your code.