VMware: How to solve [InstallationError] There was an error checking file system on altbootbank

Greetings friends, making several upgrades the other day I found the next error that breaks you in the morning if you are in a hurry and you are performing upgrades of ESXi, the error in question happened to me when I tried to update using an ESXi bundle:
[InstallationError]
 There was an error checking file system on altbootbank, please see log for detail.
 Please refer to the log file for more details.

Steps to troubleshoot the error easily

Fortunately the problem is solved in just a few seconds, the first thing we will have to do is check that the partition is OK and see the information of it:
vmkfstools -P /altbootbank/
This will return something similar to the following, be very attentive to the Partitions spanned part, as we will use this information later:
vfat-0.04 (Raw Major Version: 0) file system spanning 1 partitions.
File system label (if any): 
Mode: private
Capacity 261853184 (63929 file blocks * 4096), 87220224 (21294 blocks) avail, max supported file size 0
UUID: 2afcf7ef-53839aff-43f1-432714380654
Partitions spanned (on "disks"):
        naa.200049454505080f:5
Is Native Snapshot Capable: NO
The next command will be launched against the partition that has shown us the vmkfstools command:
dosfsck -a -w /dev/disks/naa.200049454505080f:5
Which will show us something like the next:
dosfsck 2.11, 12 Mar 2005, FAT32, LFN
/dev/disks/naa.200049454505080f:5: 212 files, 42635/63929 clusters
If we try to launch the ESXi update command again using the bundle, we won't have any more problems. I hope it serves you well.

VMware: How to deploy VMware VCSA 6.5.x on VMware Fusion 10

Greetings friends, on certain occasions it is highly recommended to deploy an instance of VCSA 6.5 in our lab outside of our Homelab, using tools such as VMware Workstation or VMware Fusion, so that we have our own VCSA VM on our computer, and we can play with it, apply patches, test new features, or even bring an entire nested environment. Congratulations, since VMware Fusion 10 and VMware Workstation 12, we natively support the deployment of VCSA 6.5 on these tools (without having to edit complicated files, or use Converter), let's go with the Blog.

Critical, vital, indispensable step - DNS, DNS and DNS

I have read in several articles, and lived in my own meats Castellanas, the failure to deploy VCSA 6.5. x in VMware Fusion without this step, it is indispensable to have a valid DNS entry for this new VM, and to have the PTR record also for the installation to be completed correctly:

Deploying VCSA 6.5. x on VMware Fusion 10 - in video

VMware: How to monitor your VCSA 6.5 using SNMP and PRTG Network Monitor

Greetings friends, as I have told you in previous posts, and surely you are seeing in all media, vCenter for Windows will be obsolete in the next version of VMware, which makes us start migrating to vCenter Server Appliance for Linux (VCSA 6.5). The new VCSA 6.5 comes with many enhancements such as HA, Backup, and very basic web monitoring to see CPU and RAM, I leave you some interesting articles: Without further delay, let's start the article, at the end we can have a Dashboard similar to this one using the always recommended PRTG Network Monitor:

VMware: How to download all the VMworld 2017 US and Europe sessions using youtube-dl

Greetings friends, the VMworld has just finished a few weeks ago and has left us many new features, you have all the information in Spanish about the VMworld here. Despite the detailed summaries and news that we can read on the Internet, one of the most interesting things about VMworld is undoubtedly the technical sessions, this year, like other years, William Lam leaves us links to all the sessions of both VMworld: Now, we have all the links, but what if we want to download the sessions in a global way to have them and visualize them comfortably when we want? That's what this Post is about:)

Quick overview, download and install youtube-dl

youtube-dl is a command line program to download videos from YouTube. com and some other sites. Requires Python interpreter (2.6,2.7 or 3.2+), and is not platform specific.

VMware: VMware announces vSphere 6.5 Update 1 – Time to upgrade our clusters!

Hello everyone, VMware announced the GA of vSphere 6.5 Update 1, the awaited version for some of the people in version 6.0 or for those in 6.5 with some bugs which this version fixes. Here you can find the most relevant links, the Release Notes and the Download Links, followed by a detailed what's new per each product: Release Notes Download Links