The System Recovery Disk (SRD) version 2013 does not boot on ESX versions prior to 5.0 Patch 4.
The Symantec System Recovery Disk is based on WinPE 4.0 (Windows 8 / Windows Server 2012). Booting to WinPE 4.0 is fully supported for ESXi 5.1 and ESXi 5.0 U1 and ESXi 5.0 U2. Earlier versions are not supported.
For ESX 5.0: Install Patch 4 on ESX host. Ensure the server is running ESXi 5.1, or ESXi 5.0 U1 and U2.
For ESX 4.x: Use the SSR 2011 version of the SRD which is available via MyVeritas portal (See http://www.veritas.com/docs/000100418) or by contacting Symantec Technical Support.
ESX 4.x and previous, ESX 5.0 Patch 4 and earlier