Installation Fails Due to Insufficient Space in Bootbank on ESXi Host

NSX installation might fail if there is insufficient space in the bootbank or in the alt-bootbank on an ESXi host.

Problem

On the ESXi host, you might see a similar log (esxupdate.log) message:

20**-**-**T13:37:50Z esxupdate: 5557508: BootBankInstaller.pyc: 
ERROR: The pending transaction requires 245 MB free space, 
however the maximum supported size is 239 MB.^@

Cause

Unused VIBs on the ESXi host can be relatively large in size. These unused VIBs can result in insufficient space in the bootbank or in the alt-bootbank when installing the required VIBs.

Solution

• Uninstall the VIBs that are no longer required and free up additional disk space.

For more information on deleting the unused VIBs, see the VMware knowledge base article at https://kb.vmware.com/s/article/74864.