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JAS 10.4.8 - needs cd to boot (Dual Boot)

ThePlague

By ThePlague,
in OSx86 10.4 (Tiger)

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ThePlague
ThePlague
Posted
Posted

hi there,

I installed JAS 10.4.8 SSE3 on my secondary harddrive in partition located at the end of the harddrive. It happens that now I can't boot without inserting the installation cd and setting the mac partition as primary and in order to boot window$ xp I need to use a special boot cd to run partition magic and change the primary partition...

I tried the chain0 method but I think it needs and active partition in order to boot, dunno as I can't find detailed information about it.

Is there anybody that had a similar problem who knows any solution for this?

thanks a lot!

avioli
avioli
Posted
Posted

I have the Absolutely the SAME situation here... I cannot boot to Mac OS X without the installation CD inserted!!!!

I have 3 partitions - 60/60/30 - all primary, the last one is for the OS X. I have a serial ATA disk drive and installed the same way like ThePlague did!!!

I insert the DVD with JAS 10.4.8 OSX and reboot (last partition is active) after the ~10 secs countdown with no keys pressed it is resuming as usual...

If there is no CD in the drive.. I'm getting the "no operation system installed" error - no DARWIN bootloader at ALL!!!

Please suggest something!!!!

ChiefWiggum
ChiefWiggum
Posted
Posted

I have had the same problem with JaS 10.4.7-8 DVDs because the installtion does on write a proper boot

sector to the HFS+ partition.

 

I use the chain0 method.

 

Background:

chain0 looks for any available HFS+ partition and tries booting it.

This is different than the "active partition method" which relies on the fact that the

active parition needs a valid boot sector to be able to boot.

 

So in order to boot your HFS+ partition, you need to "loose" your existing bootsector and then use

chain0 to boot. (I used dd in windows)

 

Steps : (Example HFS+ parition of 10GB, adjust dd values for your parition)

1. Backup existing HFS+ partition.

dd if=\\?\Device\Harddisk0\Partition3 of=MacOSX_Backup.img bs=65536 count=163840 --progress

2. Now the important bit, restore the image back by skipping the bootsector (1st sector)

dd if=MacOSX_Backup.img of=\\?\Device\Harddisk0\Partition3 bs=32256 skip=1 --progress

 

Result : HFS+ parition is now without the dodby bootsector but chain0 is now able to find the proper HFS+ to boot.

dancemc87
dancemc87
Posted
Posted

hey guys, i have the same problem.

 

i have partitioned my harddisk into two partitions by using the mac osx disk utility.

after that i installed vista on my first partition, because vista obviously does not allow to be installed on a system where mac osx was installed before on a different partition (checked that out, vista cd denied to install on the other free partition)

so i installed vista first on the first partition.

(after that i was able to start vista perfectly!!)

after that i installed tiger on a second partition.

everything worked fine, but:

 

when i start my laptop and i dont have any cd inside, then it says

"HFS+ partition error" or something like that.

if i put the jas 10.4.8 dvd inside it will display me, "would you like to start from cd, please .... the same bla bla as always" and if i dont push any button, it will start mac osx without any problems.

 

vista is correctly installed, but does not want to start either.

even if i start from the vista cd and tell vista to repair boot process, vista says that it is unable to do that.

thats all.

 

so at the moment, i just can start osx by inserting the jas 10.4.8 dvd into the drive.

to vista i have no access, the only thing i can do is to view the partition of vista under osx.

 

does anyone of you have an idea how to fix it??

obviously it is a problem of the master boot record, so any boot loader recommendmends??

or do you know a cd that asks me, what partition to load??

that would be great, pls help.

thank you very much

ThePlague
ThePlague
Posted
  • Author
Posted

Chief, could you please explain us better how you did that? I don't even know what is "dd"...

right now I'm getting the following error when I try to use chain0: "Chain booting error"

 

my harddrive looks like:

 

[NTFS 65GB - Active] [NTFS 21GB] [AF 9GB]

 

*both ntfs are primary

 

why chain0 would throw that error in my case?

thank you

Rammjet
Rammjet
Posted
Posted

Be sure the OSX partition is primary as well.

 

Sometimes the Disk Utility on the 10.4.8 DVD messes up the boot files. I would use another install DVD to perform the format (erase) of the partition, then pop in the 10.4.8 DVD and finish the installation.

 

After that you should be able to use the OSX/Darwin bootloader by adjusting the boot.plist file to make the selection menu appear at boot: http://forum.insanelymac.com/index.php?sho...mp;#entry243116

ThePlague
ThePlague
Posted
  • Author
Posted

ok, just did it with an old dvd I had (10.4.5) and still get the "no operation system installed".

During the attempt to create the mbr I ended up deleting all my partitions accidentally, and osx still wont boot without dvd even when it is the the only OS installed, any ideas?

Rammjet
Rammjet
Posted
Posted

With 10.4.5 Disk Utility, only had to select OSX partition on left, and select Erase tab (not partition tab) on right. Then click erase button.

 

When installing OSX as only OS, still need to establish MBR. But need to use Windows/Linux utility to format entire drive as FAT32. Don't use Windows itself because it won't format FAT32 over 32 GB. Then in Disk Utility in 10.4.5, see the hard disk icon at top left and primary partition icon (99.9%) of hard drive below the hard drive icon. Select the partition icon and click the Erase tab on right. Set name and be sure it is setup for MacOS Extended Journaled. Then click Erase button.

 

Pop in the 10.4.8 DVD and finish installation.

ThePlague
ThePlague
Posted
  • Author
Posted
With 10.4.5 Disk Utility, only had to select OSX partition on left, and select Erase tab (not partition tab) on right. Then click erase button.

 

When installing OSX as only OS, still need to establish MBR. But need to use Windows/Linux utility to format entire drive as FAT32. Don't use Windows itself because it won't format FAT32 over 32 GB. Then in Disk Utility in 10.4.5, see the hard disk icon at top left and primary partition icon (99.9%) of hard drive below the hard drive icon. Select the partition icon and click the Erase tab on right. Set name and be sure it is setup for MacOS Extended Journaled. Then click Erase button.

 

Pop in the 10.4.8 DVD and finish installation.

 

when I erased the partition I was experimenting with the tool, after that I...

  1. booted with a special cd and created 3 partition using partition magic, NTFS 40GB + NTFS 40GB + FAT32 15GB
  2. rebooted with 10.4.5 disk and erased the FAT32 partition on Extendend Journaled format
  3. rebooted with 10.4.8 disk
  4. installed
  5. got f***ed

what could be it?

thank you

tomazzzzzzzzzzz
tomazzzzzzzzzzz
Posted
Posted

hi

 

i have nearly the same problem

 

i used an empty drive fat32 ( active ) drive to install 10.4.8 JaS intel only & i m only able to boot with the dvd on the drive or i got an "operating system missing"

 

is there anyway to fix this without reinstalling osx ? (i have windows on a second drive with macdrive so i can use it to fix perhaps )

 

any help will be very very appreciated :thumbsdown_anim:

 

 

thx

Rammjet
Rammjet
Posted
Posted

Try this:

 

Boot into OSX and go to Terminal. Type: 

 -- (get disk number for OSX disk)
diskutil list   (find the number after "disk" - this is your disk number)

-- (try to fix mbr)
sudo fdisk -u /dev/rdiskN   (where N is your disk number)
(answer yes to any questions)

-- (make partition active)
sudo fdisk -e /dev/rdiskN   (where N is your disk number)

(follow the following guide to finish)

tomazzzzzzzzzzz
tomazzzzzzzzzzz
Posted
Posted

thx for your reply rammjet though i already tried this without success :/

 

It s not a b0 error & this tread was releated too it s just my comp can t see the boot loader without the install dvd in the drive nothing show up , only " missing operating system "

 

seems it can t find the mbr, tried to fix it but doesn t work, partition is active also, marked *

 

anyway i m very happy with my system it work like a charm, that s the only little thing i need to find out now ;))

Rammjet
Rammjet
Posted
Posted

The first "fdisk -u" is the OSX equivalent of fixmbr - trying to fix missing mbr.

 

After performing this, you might get a b0 error.

 

So, the second "fdisk -e" command is the setup to fix the b0 error.

 

Otherwise, if the above doesn't work, you are stuck reinstalling.

 

But this time, try this:

 

Format the entire hard drive as FAT32. This creates a teeny-tiny partition for MBR and boot sectors and a really large partition for the rest of the disk. In Disk Utility, select the primary partition icon shown below the hard drive icon. Format the partition as MacOS Extended Journaled. Then complete your installation.

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