4.1.2 Load another boot loader to boot unsupported operating systems
If you want to boot an unsupported operating system (e.g. Windows 95), chain-load a boot loader for the operating system. Normally, the boot loader is embedded in the boot sector of the partition on which the operating system is installed.
Set GRUB's root device to the partition by the command rootnoverify (see rootnoverify):
grub> rootnoverify (hd0,0)
Set the active flag in the partition using the command makeactive1 (see makeactive):
grub> makeactive
Load the boot loader with the command chainloader (see chainloader):
grub> chainloader +1
`+1' indicates that GRUB should read one sector from the start of the partition. The complete description about this syntax can be found in Block list syntax.
Run the command boot (see boot).
However, DOS and Windows have some deficiencies, so you might have to use more complicated instructions. See DOS/Windows, for more information.
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