What are the Packages in the ESXI Host Client?
Packages are set of VIBs, You can add or remove VIBs in an offline bundle, or image profiles to or from an ESXi host using the RSE Package Manager
The Package Manager displays with a list of the packages installed on the host.
You can Add a package
1. Click Add to display the Install Wizard.
2. Select the package to install: a VIB package from a local file or URL, a VIB package from a depot or offline bundle, or an image profile from a depot or offline bundle and click Next.
3. Supply the location of the VIB, offline bundle or image profile.
a) For VIBs: In the VIB Location page, specify the local file or URL for the VIB package to install. Click Browse to find it in the local file system, or click Projects to find it in Project Explorer.
b) For VIBs in an offline bundle: In the Depot Location page, enter a depot URL or offline bundle ZIP file from a server. Click Browse to find it in the local file system.
The VIB packages are available in that depot or offline bundle display.
c) For an image profile: In the Depot Location page, enter a depot URL or offline bundle ZIP file from a server. Click Browse to find it in the local file system.
The image profiles are available in that depot or offline bundle display.
4. Click Next to display the Install Options page.
5. Select the options for installation and click Next.
6. Click Install to start the installation.
If there are errors, they will display in the text box.
7. When the installation completes, click Finish.
The Packages installed on host <host name> list displays with the new package listed.
The Packages available. what are they for? Why they are available with any ESXI Host?
As mentioned above, packages are set of VIB/drivers on which the ESXi host is loaded. They are available with every ESXi host giving you the information about the drivers which are loaded with that particular ESXi host. People can have a variety of ESXi OS depending on the hardware for example Dell Customize ESXi OS, HPE Customize ESXi OS, and Plain VMware vSphere ESXi host. So each OS would be having different VIBs/drivers depending on the hardware on which ESXi is loaded.