ISO image to a DVD or burn the IMG file to a USB drive For a bare-metal installation

ipmitool, HP iLO, or Dell iDRAC

刻录iso文件到DVD  方法

Use any standard software to burn the ISO to a writable DVD. Some popular options:

• Linux -- Brasero and Xfburn are commonly pre-installed applications
• Mac OS X -- Open Disk Utility from Applications > Utilities, drag the ISO into the disk list on the left side of the window and select it, insert a blank DVD, and click Burn. If you prefer a different utility, check out the open source Burn.
• Windows -- Use ImgBurn or the open source InfraRecorder