I'm in a new project that has some notebook instances created in sagemaker that are from the Amazon Linux 1 platform that had its support recently ended and at the moment the notebooks don't even turn on anymore.
I wanted to know if there is any way to access the files from these machines to be able to move them to the new instances that are created.
Obs: It is not possible to edit the platform of the created instances, this option is disabled.
As one of the comments mentions (docs), AL1 has been on a path to deprecation, and as of March 31, 2024, you won't be able to run a notebook on AL1 if the notebook was stopped.
Please raise a ticket through enterprise support if that's an option, to see if they can back up the EBS volume and provide a copy. Editing the platform is not an option.