Other options on the kernel line set the partition as read-only initially (ro) and set the
root file system to LABEL=/123.
NOTE
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Choosing and Installing a Linux Distribution Part III
For the Windows XP partition, the rootnoverify line indicates that GRUB should not try to mount
the partition. In this case, Windows XP is on the first partition of the first hard disk (hd0,0) or
/dev/sda1. Instead of mounting the partition and passing options to the new operating system,
the chainloader +1 indicates to hand control the booting of the operating system to another
boot loader. The +1 indicates that the first sector of the partition is used as the boot loader.
Microsoft operating systems require that you use the chainloader to boot them from
GRUB because GRUB doesn??™t offer native support for Windows operating systems.
If you make any changes to the /boot/grub/grub.conf file, you do not need to load those
changes. GRUB automatically picks up those changes when you reboot your computer. If you are
accustomed to using the LILO boot loader, this may confuse you at first, as LILO requires you to
rerun the lilo command for the changes to take effect.
Adding a New GRUB Boot Image
You may have different boot images for kernels that include different features.
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