You can run the ESXi installer usually from the CD (official or customized), but also from PXE or from USB. The CD installation (still in version 5.5 the ISO fit on a CD) remain the most used option, but in some cases it’s not applicable. For example recent servers or blade systems lacks of the CD/DVD unit and in this case the only option is use the hardware management interface (like the IOLE for HP or the iDRAC for Dell), or use alternative boot options. PXE could be valuable in some cases, but require an infrastructure that […]