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发表于 2003-11-28 16:50:07
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GRUB version 0.92 (640K lower / 3072K upper memory)
[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename. ]
grub> help root
root: root [DEVICE [HDBIAS]]
Set the current "root device" to the device DEVICE, then attempt
to mount it to get the partition size (for passing the partition
descriptor in `ES:ESI', used by some chain-loaded bootloaders),
the BSD drive-type (for booting BSD kernels using their native
boot format), and correctly determine the PC partition where a
BSD sub-partition is located. The optional HDBIAS parameter is a
number to tell a BSD kernel how many BIOS drive numbers are on
controllers before the current one. For example, if there is an
IDE disk and a SCSI disk, and your FreeBSD root partition is on
the SCSI disk, then use a `1' for HDBIAS.
rootnoverify: rootnoverify [DEVICE [HDBIAS]]
Similar to `root', but don't attempt to mount the partition. This
is useful for when an OS is outside of the area of the disk that
GRUB can read, but setting the correct root device is still
desired. Note that the items mentioned in `root' which derived
from attempting the mount will NOT work correctly.
grub> |
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