# Cluster join error

**URL:** https://forums.suse.com/t/cluster-join-error/44028
**Category:** SLES High Availability Extension
**Created:** [September 9, 2024, 9:51am UTC](https://forums.suse.com/t/cluster-join-error/44028 "2024-09-09T09:51:28Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Ernest](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/ernest/32/11513_2.png) [@Ernest](https://forums.suse.com/u/Ernest)
#### Post date: [September 9, 2024, 9:51am UTC](https://forums.suse.com/t/cluster-join-error/44028/1 "2024-09-09T09:51:28Z")

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I am getting an error of cluster.join: /dev/sda4 doesn’t look like a block device.  
Attached is the configuration of my SBD.

Kind Regards,

Ernest.

 ![sbd storage](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/4/43ed5d388a9d8b3c41b107ee9705502403e6d709.jpeg)