If the problem persists after following this guide, contact Cisco TAC and reference:
Reinstalling the system when the existing OS is corrupted or inaccessible. How to Use This Image bootable ucsinstall ucos unrst 8621000014sgn161
While "UCSInstall" files downloaded directly from the Cisco Software Central are typically and intended only for upgrades, a file explicitly named "Bootable" is used for fresh installations or "bare-metal" builds on virtual machines. Common Procedures Guide: Creating a bootable UCS install media and
: Save the file as a new ISO. Note that modifying the ISO may affect its checksum, so you may need to skip the media checksum test during the initial installation phase. Deployment Methods Let the installer complete; do not power cycle during write