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GRUB4DOS、SYSLINUX及其它启动管理软件讨论专区 » How to perform multi-booting on a single hard drive with GRUB for DOS

Floor1　paldos	Posted 2006-08-04 18:59
初级用户　Posts 27　Credits 62
Partition C is the primary partition, installed with winxp as the active partition. Partition D is also a primary partition, installed with maxosx. No matter how I use grub to boot d:macosx, it just shows HFS+ partition error. //////////////////////////// timeout 30 default 0 color black/light-gray light-gray/black title 1. c: winxp rootnoverify (hd0,0) chainloader (hd0,0)+1 title 2. d:macosx rootnoverify (hd0,1) chainloader (hd0,1)+1 ///////////////////// If changed to //////////////////////////// timeout 30 default 0 color black/light-gray light-gray/black title 1. c: winxp rootnoverify (hd0,0) chainloader (hd0,0)+1 title 2. d:macosx rootnoverify (hd0,1) makeactive //Add boot, it can start, but next time can only start from d, d has become activve chainloader (hd0,1)+1 /////////////////////

Floor2　fujianabc	Posted 2006-08-04 20:20
金牌会员　Posts 1,616　Credits 3,467
It seems that GRUB doesn't say it supports macOS, or just use the built-in bootloader of macOS.

Floor3　paldos	Posted 2006-08-05 15:13
初级用户　Posts 27　Credits 62
Originally posted by fujianabc at 2006-8-4 20:20: It seems that GRUB doesn't say it supports macOS. It's better to use the bootloader that comes with macOS. Then why can it boot by adding an extra makeactive? :P Theoretically speaking GRUB's chainloader is to load the sector chain loader, so it doesn't care about the partition format of the destination. As long as it reads the boot information and then hands it over to the BIOS to start, that's how I understand it. If I'm wrong, please correct me. [ Last edited by paldos on 2006-8-5 at 15:22 ]

Floor4　fujianabc	Posted 2006-08-05 15:44
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According to what you said, maybe macOS must boot from an active partition. The makeactive command activated this primary partition.

Floor5　paldos	Posted 2006-08-05 18:00
初级用户　Posts 27　Credits 62
But with Power Quest Boot Magic, although I don't know its principle, it seems that it doesn't modify the active partition attribute either. It can achieve dual-booting of WinXP and macOS.