How to install Yosemite on my Dell Inspiron 15r ?

[ramkumarz]

I tried all the methods mentioned in the site but not even one method got me into the installation page. need step by step explanation from before bootload.

 

[RehabMan]

I tried all the methods mentioned in the site but not even one method got me into the installation page. need step by step explanation from before bootload.

Please provide complete details in your profile/signature
(Profile/Settings link in upper right corner of this site)

System: manufacturer/model + bootloader(Clover/Chameleon/Chimera)
CPU: detailed CPU model + motherboard chipset
Graphics: all graphics devices + laptop internal screen resolution

For example, typical Ivy laptop:
System: HP ProBook 4540s (Clover)
CPU: i5-3320m/HM76
Graphics: HD4000, 1366x768

Use CPU-Z on Windows to find CPU (Core iX-xxx) and motherboard chipset (HMxx), and graphics capabilities. For a laptop, these details are important and affect critical installation procedures.