solaris booting process.

Answer Posted / satish

Boot Process is 5 Phases in solaris 10
1. POST Phase
2.Boot Program Phase
3.Kernel Initialization Phase
4.Init Phase
5.svc.startd Phase


when switch on sun Box firmware starts POST(Power On self Test). Post Checks Hardware Specification and Print banner.. Post Checks Boot Parameters. Boot Parameters true .. then Go to second stage . Post Locates BootBlk , BootBlk Loads the ufs BootBlk... BootBlk locate Kernel . kernel is parts parts
genix ,Unix.genix platform independent, unix platform specific these two types of kernels combined to create running kernel. kernel reads configuration file (/etc/system) then loads itself.and Root file system also mounted in the Phase .. when RFS mounted Then Ufsbootblk Unmap. Kernal starts /etc/init daemon...this daemon checks /etc/inittab enteries... after that initd daemon Starts Svc.startd... svc.startd starts default services.....

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