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Cumulus Networks Product Bulletin 2015-09-21


Cumulus Networks has issued this product bulletin to inform you of the following pressing issues affecting one or more Cumulus Networks products and/or versions. 

Release Note IDSummaryDescriptionAffected Products & Versions
Switch shuts down after suspected bad temperature reading An Accton AS4600-54T switch may shut down after a sensor reading incorrectly reports that the temperature is in a CRITICAL state, when it actually isn't. Cumulus Linux 2.5.3 and 2.5.3a
(CM-7393, CM-6342)
Configuration resets to default after second boot This has been after upgrading Cumulus Linux using cl-img-install -u then rebooting in same slot a second time. The overlay gets cleared.

To work around this issue, copy /etc/lsb-release from the read-only slot to /etc/cumulus/init/lsb-release in the read/write slot after the first reboot:

cumulus@switch:~ $ cp /mnt/root-ro/etc/lsb-release / 
/mnt/root-rw/config$(fw_printenv -n
CM-7393: All versions.
CM-6342: Cumulus Linux 2.5.3 and 2.5.3a.
Dell S4048-ON: Various power off commands render the switch unusable

Issuing a poweroff or shutdown command with certain options shuts down the switch, but it cannot be powered on again. The options that cause this issue are:

  • shutdown -hshutdown -P
  • poweroff -npoweroff -dpoweroff -fpoweroff -ipoweroff -hpoweroff -p
  • halt -nhalt -dhalt -fhalt -ihalt -hhalt -p
  • init 0

Issuing a reboot command, or using other options, does not trigger this issue.

This issue affects only Dell S4048-ON switches with BIOS version or earlier. To determine the BIOS version of the switch, run:

cumulus@switch:~$ sudo dmidecode -s system-version

This is a known issue, and Dell is issuing a fix soon.

Cumulus Linux 2.5.3a.

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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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