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[How to] Setting Your Partition "Active" Using Fdisk in MacOSX


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#141
X86 asker

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Is this what I should do if i receive the error Boot0: error everytime I boot up?


It did not work for me with this problem so i don't think this is what you should do.

#142
steli0s

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First of all, respect guys for this great forum.
I'm new to the osx86 stuff, i installed leopard 10.5.7 using iATKOS v7 DVD.
Everything went fine, but i had a flashing cursor.

I used the following advice to fix the flashing cursor:
http://apple2pc.blog...86-install.html

and after that i had the
boot0: done
boot0: MBR
problem like other users.

I tried exactly what the first post said and still it can't be fixed.
I only have one hdd mounted atm, with only one partition where i installed leopard.
i'm posting some screenshots and let me know if i'm doing something wrong please...

As you can see, here's exactly what i wrote:
diskutil list
fdisk -e /dev/rdisk0
p
f 1
write
yes
exit

Posted Image

what am i doing wrong here?

i remove the install dvd, reboot and same thing happens...

#143
jasjeet

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yes i am also having the above problem, i follow the guide, only to recieve the same problem, boot1: error

#144
JavaKrypt

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Hey.




I know how to install MacOS and XP dual-booted. I've done it many times. But I already had Windows installed and so I went ahead and installed MacOS afterwards. It's installed fine (the files) but I can't boot it. When the computer turns on it goes straight to Windows XP.

Now I've already known about using fdisk, I've tried it millions of times but it wont do anything. It keeps booting my Windows partition first every time. I haven't even managed to install my user account on MacOS because I can't boot it! I was getting the boot0 error, but I know that was an error on my behalf.

What do I do? I don't fancy installing it all again with Mac as s1 because it was a failed Snow Leopard upgrade that fudged this up and I haven't got any idea how to backup, then restore XP if it fails (I've tried Ghost and stuff before, I don't like it. I prefer Disk Utility using Restore. But I can't do it with the install disk because it can't recognize it.)

#145
pointblankshotx

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Okay everyone i think i sorta got a solution here, im not any sort of expert but i got it working through trial/error.

i am dual booting iatkos v7 and windows 7 on a dell inspiron 1521 amd.

i installed iatkosv7 then installed windows 7 and was stuck only loading windows 7. i could boot osx but i had to boot from cd and couldn't get a wifi connection for some reason.

so i followed the guide in this thread and got stuck at the blinking cursor screen or the mission operating system screen (depending on which partition i made active with the guide posted).

After a few days of googling and searching around i just figured id get creative. So, i loaded up my iatkos v. 7 install dvd and under "utilities" there an option "Chameleon v.2 installer"
so i ran the installer, followed the instructions and got the chameleon screen to boot instead of the blinking cursor.

But first go to utilities>disk utility select your mac partition and Unmount it.
then close disk utility

now open up chameleon v2 installer
wait a few seconds for the scripts to load

It will prompt you to do several things, i believe the first one is:

select disk (for me it was 0)
Type: 0 (or your selected disk)
then press enter
Type: Y DO NOT PRESS ENTER, by pressing y it automatically enters it for you.

now you will be prompted to enter partition number
i selected 2 because thats where my osx is installed. (why i selected this one i have no idea, but it worked)
so type 2 or whatever number you want to install it to. press enter
then type: Y again, AGAIN DO NOT PRESS ENTER

after this just follow the instructions and keep pressing Y. until it says "proccess complete"
or something like that.

Now close the terminal and quit the OsX installer.

a window will pop up that has a Restart button.

push it.

now you should get the chameleon screen again.

The first time i selected my mac harddrive from the chameleon screen, it timed out and restarted.
chameleon popped up again so i tried windows and i got some sort of hardware failure
BUT the third time i restarted i selected my mac partition again and it loaded fine!
however it was really weird and buggy, i could not select the little apple logo to restart or shutdown, the top bar would disappear every time and finder would reload... this is a different issue though i think.

-i just restarted again and i can click the little apple... maybe the more i restart the more efficient it runs?

everything seems to be working fine now except i get an error when trying to load windows.
"Status: 0xc000000e
Info: the boot selection ailed because a required device is inaccessible"

im going to try to repair this so we'll see what happens.

so try this, at your own risk obviously and let me know how it works for you.

~pointblankshotx

#146
eolithix

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ok I've had the boot0: error
I se the right partition active and then ofc
boot0: done (and nothing happens)
I tried to install chameleon 2 as "pointblankshotx" mentioned
but still didn't work so I guess we wait for other suggestions :/

#147
JavaKrypt

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I never managed to find a fix to it, it kept happening. I just reinstalled.

#148
razy60

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Try Easybcd.
In windows download and install easybcd
Open the program in the appropriate box select mac, name it (you choose) in the next drop down box select generic osx86, click load and save. reboot and you should be good to go.

Raz

#149
eolithix

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That makes no different Raz
cuz when u go to option on what u wanna boot when u select mac os u get an error
saying that a file is missing/corrupt

#150
helob

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Need your help and advise.
I am running SL 10.6.2 and boot using Chameleon v2 rc3 from a seperate partition "Cham" on same HD with 5 partitions (See Attachment).
Now booting from Cham some times encountered KP ( blue or black screen just before booting into SL)

Problem:
diskutil list shown a total of 5 partitions including EFI
With fdisk -e /dev/rdisk0 and p,
Only partition 1 is shown with unknown id. (See attachment)
Rest of partitions shown unused. So can't set my "cham" partition active.
I must have screwed something up.

What must I do to correct the problem so the proper partitons is shown in fdisk?.
Does the command "fdisk -u /dev/rdisk0" help to solve above the problem?
I like to get feedbacks from anyone who has tried repair MBR with this command.

TQ

Attached Files



#151
Aceeze

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Anyone please help me , i got stuck here :
When i typed diskultil list , here's the list :
Posted Image
If I wanted to choose the number 3 in disk 0 , it means the Ace drive . So which 1 should i choose in the "p chart" below here ? (after i types fdisk -e /dev/rdisk0 )
Posted Image
Any advices will be appreciate

#152
Aceeze

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Any1 ? Please help me , i'm stuck and hopeless :wacko:)

#153
helob

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Any1 ? Please help me , i'm stuck and hopeless :D)


Looks like the partition table on Disk0 has ben damaged.
Some partitions look like its missing.
You can only boot from the first 4 primary partitions.
When you format Disk0, how many partitions did you make and what type?

#154
Aceeze

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Looks like the partition table on Disk0 has ben damaged.
Some partitions look like its missing.
You can only boot from the first 4 primary partitions.
When you format Disk0, how many partitions did you make and what type?


Em.. 4 . But nvm , the last partition , which is F , is dead . I dont know why ,can't recover can;'t format , can't do anything ?

#155
adrian999

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Ok, hope this helps someone out. I discovered that in my particular case, the system did not boot without an ##### CD due to the fact that my partition was over 1TB. So dropping my partition to 1tB made it boot perfectly. Found this out on tonymacx86 forums FYI.

Good luck to you all!


I have been having the same problem with 1 single 2TB Western Digital Hard Drive. Do you happen to have a link for that thread relating to size of the hard drive on tonymac forums?

#156
Billie1123

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Hi there, I've just followed the guide, but I still have the same problem after the instalation when I boot:

Boot0 MBR
Boot0 done
Boot1 error

This is a picture of the diskutility
http://img267.images...3/dsc00538x.jpg

Can anyone tell me if the disk where the partition is is the number 0 and the MACOSX partition is the number 1. 'Cause this is how I configured it, and I'm not sure it's correct.

Thanks =)



When i type p it`s say: command not found ? Please HELP


You must write
"fdisk(space)-e(space)/dev/rdisk0" <- replace 0 if necessary

before you write the command p

#157
Mikethebike

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if i try to write a new mbr i get something alike:

not found usr/standalone/...

i tried with -f /Volumes etc. path to boot0? which one from the install dvd? using boot0 from my partition doesn't change a thing

many thanks
Mike

#158
Athu

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Hi,
When I enter fdisk -e /dev/rdisk0 it says I don't have permission
What should I do ?
Please reply

#159
Aska

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Hi,
When I enter fdisk -e /dev/rdisk0 it says I don't have permission
What should I do ?
Please reply


Then type: sudo fdisk -e /dev/rdisk0, then enter your system password.

#160
boris22

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How to show which partition is active?

Does anybody have a tool or wizard which can be ported to bootable usb?
Which shows the active partition and can change it.





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