Monitoring the ESXi Upgrade Process

Published by Christian Mohn · Read in about 2 min (244 words)

When doing manual host upgrades, either through the direct method or via a locally placed upgrade bundle, there is a distinct lack of progress information available after running the esxcli command.

Thankfully the ESXi host provides a running logfile of the upgrade process, which makes it much easier to keep track of what is going on and that the upgrade is indeed being performed.

The esxupdate.log is located in /var/log, and by issuing the following command in a terminal window you can have a rolling log showing you the upgrade status and progress:

~ # tail -f /var/log/esxupdate.log

By running the following command in one terminal window (this uses the VMware offline bundle to upgrade from ESXi 5.1 to 5.1 Update 1):

~ # esxcli software vib update -d /vmfs/volumes/[lunID]/

you get output like this in the secondary terminal window where the log file is being monitored:

2013-06-26T10:24:51Z esxupdate: HostImage: INFO: Attempting to download VIB tools-light
2013-06-26T10:25:07Z esxupdate: vmware.runcommand: INFO: runcommand called with: args = '/sbin/ 0 /altbootbank', outfile = 'None', returnoutput = 'True', timeout = '0.0'.
2013-06-26T10:25:08Z esxupdate: BootBankInstaller.pyc: INFO: boot config of '/altbootbank' is being updated, 5
2013-06-26T10:25:08Z esxupdate: HostImage: DEBUG: Host is remediated by installer: locker, boot
2013-06-26T10:25:08Z esxupdate: root: DEBUG: Finished execution of command = vib.install
2013-06-26T10:25:08Z esxupdate: root: DEBUG: Completed esxcli output, going to exit esxcli-software

That sure beats waiting “blindly” for an upgrade/installation to finish, and in many ways this is also much better than a non-sensical progressbar.

Post last updated on January 2, 2024: Add author

About is the digital home of Christian Mohn and Stine Elise Larsen.

The primary focus is on IT architecture and data center technologies like virtualization and related topics, but other content also pops up from time to time.