You may remember ESXi 4.x-5.x had a CBT bug, as mentioned here, that could potentially cause your backups to be pretty useless. Well it seems ESXi 6.0 isn’t without it’s own CBT bug which could cause the following to possibly occur:
- Backing up a VM with CBT enabled fails.
- Powering on virtual machines fails.
- Expanding the size of a virtual disk fails.
- Taking VM quiesced snapshots fails.
Prior to the fix, the workaround was to disable CBT. Thankfully VMware has released a fix for the ESXi 6.0 CBT bug and it’s recommended that anyone who uses CBT apply this patch regardless if it was a clean install of VMware ESXi 6.0 or an upgrade to ESXi 6.0.
VMware has released ESXi 6.0 (what’s new in 6.0) back in March and I recently posted a guide on how to upgrade your vCenter Server Appliance from 5.x to 6.0 – Now we’re going to look at two ways to upgrade a VMware ESXi 5.x host to ESXi 6.0 via command line.
The first method will show you how to have each ESXi host download the update directly from VMware and then upgrade itself while the second method shows how to download the update, place it on a datastore accessible to the host, then upgrade the host.
For the past year and a half I’ve been using the Intel i5 3rd Gen NUC’s in my ESXi home lab with great success. In this time several people have asked if I recommend anything newer, and while Intel had a few 4th gen models I wasn’t really sold on them as most CPU benchmarks put them the same as my 3rd gen or lower and only added support for a 2.5″ drive which at the time I didn’t need but then Intel released news about several Intel NUC 5th generation models!
A component found in the VMware Tools called vShield drivers, which is used to accommodate agent-less antivirus solutions such as McAfee MOVE has been renamed from “vShield drivers” to “Guest Introspection driver”.
Long ago VMware offered a program called VMware Technology Network (VMTN) which was very similar to Microsoft’s TechNet, which allowed you to download and run various VMware software within your home lab for a small yearly fee. Just like the Microsoft TechNet, the VMware VMTN program was eventually closed. From the time the VMTN program closed many people have begged and pleaded with VMware to bring the program back, there is even a long forum thread asking VMware to bring VMTN back. Though it never did… until now.
If you use the VMware ESXi 5 ISO image and try to install it on an Intel NUC you’ll receive the following error during the install.
No Network Adapters
No network adapters were detected. Either no network adapters are physically connected to the system, or a suitable driver could not be located. A third party driver my be required.
Ensure that there is at least one network adapter physically connected to the system before attempting installation. If the problem persists, consult the VMware Knowledge Base.
The “No Network Adapters” on the Intel NUC error message during the ESXi install is because VMware removed a number of drivers (non-enterprise drivers) from their ESXi 5.x image and in order to use the Intel NUC as an ESXi host you need to create a customized ESXi image with the NIC drivers added to the image.