6.5.1

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Each image profile has an acceptance level. When you add a VIB to an image profile with an vSphere
ESXi Image Builder cmdlet, Image Builder checks that the VIB matches the acceptance level defined
for the profile.
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You cannot remove VIBs that are required by other VIBs.
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You cannot include two versions of the same VIB in an image profile. When you add a new version of
a VIB, the new version replaces the existing version of the VIB.
Image Profile Validation
An image profile and its VIBs must meet several criteria to be valid.
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Image profiles must contain at least one base VIB and one bootable kernel module.
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If any VIB in the image profile depends on another VIB, that other VIB must also be included in the
image profile. VIB creators store that information in the SoftwarePackage object's Depends property.
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VIBs must not conflict with each other. VIB creators store conflict information in the SoftwarePackage
object's Conflicts property.
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Two VIBs with the same name, but two different versions, cannot coexist. When you add a new
version of a VIB, the new version replaces the existing version of the VIB.
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No acceptance level validation issues exist.
When you make a change to an image profile, vSphere ESXi Image Builder checks that the change does
not invalidate the profile.
Dependency Validation When you add or remove a VIB, vSphere ESXi Image Builder checks that
package dependencies are met. Each SoftwarePackage object includes a
Depends property that specifies a list of other VIBs that VIB depends on.
See Structure of ImageProfile, SoftwarePackage, and ImageProfileDiff
Objects
Acceptance Level
Validation
vSphere ESXi Image Builder performs acceptance level validation each
time an image profile is created or changed. vSphere ESXi Image Builder
checks the acceptance level of VIBs in the image profile against the
minimum allowed acceptance level of the profile. The acceptance level of
the VIB is also validated each time the signature of a VIB is validated.
VIB Validation During Export
When you export an image profile to an ISO, vSphere ESXi Image Builder validates each VIB by
performing the following actions.
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Checks that no conflicts exist by checking the Conflicts property of each SoftwarePackage object.
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Performs VIB signature validation. Signature validation prevents unauthorized modification of VIB
packages. The signature is a cryptographic checksum that guarantees that a VIB was produced by its
author. Signature validation also happens during installation of VIBs on an ESXi host and when the
vSphere Auto Deploy server uses VIBs.
vSphere Installation and Setup
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