VMware ESXi 5.5 U2 / 6.0 Installation Error : Can’t have partition outside the disk

When you installing ESXi 5.5 Update 2 or later on Cisco UCS blades using sd card ( FlexFlash) you might see error “partedUtil failed with message : Erorr : Can’t have partition outside the disk! ” .


This is the know bug in Cisco UCS, to resolve this issue we need to install ESXi 5.5 Update 1 and upgrade to Update 2 or ESXi 6.0.

Cisco Bug report:

Cisco Bug: CSCus51007 – Unable to install ESXi 5.5 U2 on UCS FlexFlash

Last Modified

Sep 05, 2015


Cisco Unified Computing System

Known Affected Releases

1.5(7) 2.0(3d)

Description (partial)


Installing ESXi 5.5 U2 onto Cisco FlexFlash fails with:

“partedUtil failed with message: Error: Can’t have a partition outside the disk!

Unable to read partition table for device”


Seen on UCS C220 M3 running 2.0(3d) firmware when trying to install ESXi 5.5 U2 (both Cisco custom and non-custom image)

Problem does not occur when installing ESXi 5.5 U1 custom image.


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