SUSE Support

Here When You Need Us

AutoYaST installation using multiple skip_list options within partitioning section fails with "merge" error

This document (7024249) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 4 (SLES 12 SP4)
SUSE Linux Enterprise Server 15


Identifying disks by e.g. size rather UUID's as those are changing installing multiple instances.

AutoYaST installation using multiple skip_list options within partitioning section fails with "merge" error:
2019-10-23 09:50:29 <2> install(5389) [Ruby] yast/builtins.rb:586 tostring builtin called on wrong type Class
2019-10-23 09:50:29 <3> install(5389) [Ruby] yast/wfm.rb:253 Client call failed with 'no implicit conversion of nil into Hash' (TypeError) and backtrace ["/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:393:in `merge!'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:393:in `block in listmap'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:392:in `each'", "/usr/lib64/ruby/vendor_ruby/2.1.0/yast/builtins.rb:392:in `listmap'", "/mounts/mp


During installation section partitioning set up only the operating system disk. Data disks and partitions can be set up via post install script.


The skip_list is defined under a specific disk, but only once a skip_list can be defined.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7024249
  • Creation Date: 08-Nov-2019
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

< Back to Support Search

For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback[at]

SUSE Support Forums

Get your questions answered by experienced Sys Ops or interact with other SUSE community experts.

Support Resources

Learn how to get the most from the technical support you receive with your SUSE Subscription, Premium Support, Academic Program, or Partner Program.

Open an Incident

Open an incident with SUSE Technical Support, manage your subscriptions, download patches, or manage user access.