(Inquiry) XP under NT boot into GRUB error (solved) - China DOS Union Forum

There is a hard disk on my laptop with four primary partitions, and three systems are installed as follows:
sda1: WIN7
sda2: /(Ubuntu)
sda3: /home(Ubuntu)
sda4: WINxp

Both Windows use GNUgrub to boot respectively. In XP and Win7, the sda4 partition is both displayed as drive D. But when I copied the grldr file to the root directory of the XP drive, modified the boot.ini file, and added
D:\grldr="GRUB4DOS" to save, then restarted, I couldn't enter grub.
Changed it to
multi(0)disk(0)rdisk(0)partition(4)\grldr="GRUB4DOS" to save, restarted, still couldn't enter grub.
But on another computer where XP is installed on drive C, it can be successfully booted. I don't know why? Please, DX, give me some pointers

[ Last edited by zohan on 2010-2-7 at 09:40 ]

Floor1　zohan	Posted 2010-02-04 17:42
初级用户　Posts 15　Credits 38
There is a hard disk on my laptop with four primary partitions, and three systems are installed as follows: sda1: WIN7 sda2: /(Ubuntu) sda3: /home(Ubuntu) sda4: WINxp Both Windows use GNUgrub to boot respectively. In XP and Win7, the sda4 partition is both displayed as drive D. But when I copied the grldr file to the root directory of the XP drive, modified the boot.ini file, and added D:\grldr="GRUB4DOS" to save, then restarted, I couldn't enter grub. Changed it to multi(0)disk(0)rdisk(0)partition(4)\grldr="GRUB4DOS" to save, restarted, still couldn't enter grub. But on another computer where XP is installed on drive C, it can be successfully booted. I don't know why? Please, DX, give me some pointers [ Last edited by zohan on 2010-2-7 at 09:40 ]

Floor2　fujianabc	Posted 2010-02-05 16:54
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In boot.ini, only c: can be used, and there are no other drive letters. c: refers to the partition where boot.ini is located

Floor3　不得不爱	Posted 2010-02-05 20:20
超级版主　Posts 2,044　Credits 5,310　From 四川南充
Booting into GRUB from NT requires that grldr must be placed in the bootable disk.

Floor4　zohan	Posted 2010-02-07 09:39
初级用户　Posts 15　Credits 38
Thanks to the 2nd floor, I tried changing it to C: and it can boot successfully!