Thx all help!
So I have a E6220 with i5 Intel Sandy Bridge CPU, 4GB ram, BIOS A13, 120GB Kingston ssd.
What not clear for me:
Should I use in bios uefi oder legacy boot option?
1.st I have with uefi boot from pendrive (clover boot ) succesfull installed.
followed this guide https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-el-capitan-clover-guide/&do=findComment&comment=54621
2. Post installation will not work.
I can boot the system only with pendrive.