here exact error:
panic(cpu 0 caller 0xffffff800002e01e0): "tsc_init: EFI not supported!\n"@/users/iMac/Desktop/xnu-2422.1.72_by_bronya_sinetek_anv
_rc7/osfmk/i386/tsc.c:616
Debugger called: <panic>
Backtrace (CPU 0), Frame : Return Address
0xffffff800010bed0 : 0xffffff8000222f69
0xffffff800010bf50 : 0xffffff80002e01e0
0xffffff800010bf90 : 0xffffff80002d3067
0xffffff800010bff0 : 0xffffff80002d7fc8
can't perform kext scan: no kext summary
BSD process name corresponding to current thread: Unknown
Boot args: boot-uuid=1FB3014C-733E-3FB3-A551-778F2C2C91CD rd=*uuid root -dmg=file:///BaseSystem.dmg npci=0x2000 dmar=0 -v
Mac OS version:
Not set yet
Kernel Version:
Darwin Kernel Verson 13.0.0
rc7/BUILD/obj/RELEASE_X86_64
Kernel UUID: 7B044A27-FBD8-343B-A0D9-CAA78544DDBA
System uptime in nanoseconds: 0
i have screenshot pic of the error if needed as i can send via private message. it wont let me post here because newly registered member
im using virtualbox 4.3.26
in have windows 8.1 pro 64 bit
i also uploaded the log file