How to rollback update 1 package from ESXi5

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As you already know, if you have ESXi5 free installed on host with more than 32GB of RAM, after upgrade to U1 you might get into trouble with license, see that post http://www.vmwaremine.com/2012/03/24/esxi-5-free-version-update-1-license-problems/

If you got that error, you can rollback Update1 from your ESXi host.

 Access over remote console cards such as IMM, iLO, DRAC or direct attached screen:

  1. Reboot server
  2. Press Shift+r when the screen displays Loading VMware Hypervisor.

    ESXi5 enter to recovery mode

  3. New screen appear with ESXi build listed

    ESXi5 recovery mode screen

  4. Confirm selection – Y
  5. Server restarts with an old build

    ESXi5 build number before upgrade

Access to server via SSH

  1. Edit the files /bootbank/boot.cfg and /altbootbank/boot.cfg.
  2. In the bootbank copy of the file you should find updated=2.   It will be updated=1 in the altbootbank copy.
  3. Swap the values for updated, save the files and reboot.

Note:  the first way I mentioned using Shift+r is supported, the second method is not.

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Artur Krzywdzinski

Artur is Consulting Architect at Nutanix. He has been using, designing and deploying VMware based solutions since 2005 and Microsoft since 2012. He specialize in designing and implementing private and hybrid cloud solution based on VMware and Microsoft software stacks, datacenter migrations and transformation, disaster avoidance. Artur holds VMware Certified Design Expert certification (VCDX #077).

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Andy

Thanks a lot!!! You saved my live over here 🙂
You can even downgrade to Vmware ESXi 4.

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