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Old 11-26-2010, 09:45 AM   #1
mkrjonnala
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linux on imac problem


redhat linux 5.5 i386 install with bootcamp on imac its work fine,
when i install 64 bit on same system after restart system its saying
insert boot disk, any body help please

my sysconfig
21inch imac
4gbram
500gb
res=1920X1080
Graphic card = NvidiaGeforce9400gpu
 
Old 11-27-2010, 03:31 AM   #2
EDDY1
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Are you sure you didn't do dual boot and elect not to install grub to boot?
 
Old 11-27-2010, 08:58 AM   #3
mkrjonnala
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no i did dual boot and iam not sure about "grub to boot"

thanks for the reply
 
Old 11-27-2010, 03:08 PM   #4
ronlau9
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Ok you do a dual boot .
Do you only use Bootcamp or also refit ?
If you are only using bootcamp which EFI are you using ?
EFI 32 or EFI 64
EFI 32 boots default in 32 bits even if you have 64 bits MAC .
But you can change that .
Anyhow you need a boot loader .
 
Old 12-01-2010, 05:11 AM   #5
mkrjonnala
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thanks for the reply

i use bootcamp to create linux (windows) partition, how can i create EFI 64 partition with boot camp
 
Old 12-01-2010, 05:27 AM   #6
ronlau9
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EFI is provided by MAC .
What I mean is even if you have EFI 64 the MAC by default boots in the 32 bits mode .
IF you have EFI 64 by holding down the numbers 6 and 4 during boot than the MAC will boot in the 64 bits mode
But you can not create a EFI 64 or change EFI 32 with EFI 64
 
Old 12-01-2010, 10:08 AM   #7
mkrjonnala
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thank u

ioreg -l -p IODeviceTree | grep firmware-abi

i run this command on terminal

then shows like this "firmware-abi" = <"EFI64">

i think my system is support 64 bit

but iam trying to install rhel-server-5.5-x86_64-dvd.iso installed good when i reboot system it is saying insert boot disk

please tell what i do?
 
Old 12-01-2010, 11:53 AM   #8
ronlau9
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Yes you're system is intel 64 bits.
But as I stated before you need a boot loader to boot multiple OS .
Visit refit website how to do this .
 
Old 12-15-2010, 05:19 AM   #9
mkrjonnala
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redhat linux 64 bit on imac

sorry for delay

refit is good, but when i
type gpt sync command on shell
the partitions are synced no need to sync is showing

then i going to linux partition 'missing operating system' showing


when installation complete i found
"(anaconda799) html critical null failed" something error showing

when i reboot it saying missing operating system

what iam missing, tell me please
 
  


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