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Recovering the Root Password



I lost my root password. How do I reset the root password in Cumulus Linux?

My switch boots partially, but not far enough for me to log in. How do I gain access the file system to investigate or fix?


  • Cumulus Linux 1.5.z - 2.5.z


To resolve this issue, boot into single user/recovery mode.



This support portal has moved

Cumulus Networks is now part of the NVIDIA Networking Business Unit! The NVIDIA Cumulus Global Support Services (GSS) team has merged its operations with the NVIDIA Mellanox support services team.

You can access NVIDIA Cumulus support content from the Mellanox support portal.

You open and update new cases on the Mellanox support portal. Any previous cases that have been closed have been migrated to the Mellanox support portal.

Cases that are still open on the Cumulus portal will continue to be managed on the Cumulus portal. Once these cases close, they will be moved to the Mellanox support portal.

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