djtrix Posted January 25, 2008 Share Posted January 25, 2008 So, first of all, before i get flamed, i have read the forum, searched the forum, and searched google. I found this: B0 error From OSx86 Jump to: navigation, search The b0 error occurs on bootup, if no partition is active. A solution to the problem is to insert the OS X install cd without pressing any key. When the install times out, OS X should boot from the harddisk. To make a partion active, do this: * Start Terminal.app * Enter: sudo -s (enter your password) fdisk -e /dev/rdisk0 (the disk number may be different on your installation, eg. rdisk1) print (list all partitions) flag 1 (sets partition 1 as bootable - might be a different number on your installation) quit (answer y to save settings) * Now reboot the computer. You should now be able to boot without the install cd. Which describes my problem correctly, i can get into osx fine if i let the dvd time out. I followed the instructions, but the partition was already set as active, i tried setting the other one as active, and rebooting, then tried switching it back, all to no avail. lord-crendores-computer:~ crendore$ sudo -s Password: lord-crendores-computer:~ root# diskutil list /dev/disk0 #: type name size identifier 0: FDisk_partition_scheme *149.1 GB disk0 1: Windows_NTFS Untitled 133.8 GB disk0s1 2: Apple_HFS OSX 15.2 GB disk0s2 /dev/disk1 #: type name size identifier 0: Apple_partition_scheme *2.4 GB disk1 1: Apple_partition_map 31.5 KB disk1s1 2: Apple_HFS XxX_OS_x86_10.4.11_Install_Disc_Intel 2.4 GB disk1s3 lord-crendores-computer:~ root# fdisk -e /dev/rdisk0 fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory Enter 'help' for information fdisk: 1> print Disk: /dev/rdisk0 geometry: 19457/255/63 [312581808 sectors] Offset: 0 Signature: 0xAA55 Starting Ending #: id cyl hd sec - cyl hd sec [ start - size] ------------------------------------------------------------------------ 1: 07 0 1 1 - 1023 254 63 [ 63 - 280703682] HPFS/QNX/AUX *2: AF 1023 254 63 - 1023 254 63 [ 280714848 - 31866912] HFS+ 3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused 4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused fdisk: 1> f 2 Partition 2 marked active. fdisk:*1> write Device could not be accessed exclusively. A reboot will be needed for changes to take effect. OK? [n] yes Writing MBR at offset 0. fdisk: 1> quit What am i doing wrong? I'm thinking i screwed up the installation somehow. What version of EFI should i be installing? I have an Acer 4202 Wlmi. And i've had the darwin bootloader working in the past in a dual boot situation like this using an earlier install disk (i think 10.4.5 ish) There is a lot more options in this install, so i'm a little unclear about if i've ticked all the boxes correctly. I do have a dual core cpu, and an intel chipset. Everything works fine, even my new wireless card works fine, i just got no bootloader, and can only boot into osx if i leave the disk in and let it time out Any ideas? Link to comment https://www.insanelymac.com/forum/topic/83514-dual-boot-osx-10411-efi-windows-xp-b0-error/ Share on other sites More sharing options...
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