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发表于 2003-12-21 01:35:48
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主要是留意這個 -X68 可能不行~~ 先別用這個好些 
-X Set the IDE transfer mode for newer (E)IDE/ATA2
drives. This is typically used in combination with
-d1 when enabling DMA to/from a drive on a sup-
ported interface chipset (such as the Intel 430FX
Triton), where -X34 is used to select multiword DMA
mode2 transfers. Apart from that, use of this flag
is seldom necessary since most/all modern IDE
drives default to their fastest PIO transfer mode
at power-on. Fiddling with this can be both need-
less and risky. On drives which support alternate
transfer modes, -X can be used to switch the mode
of the drive only. Prior to changing the transfer
mode, the IDE interface should be jumpered or pro-
grammed (see -p flag) for the new mode setting to
prevent loss and/or corruption of data. Use this
with extreme caution! For the PIO (Programmed
Input/Output) transfer modes used by Linux, this
value is simply the desired PIO mode number plus 8.
Thus, a value of 09 sets PIO mode1, 10 enables PIO
mode2, and 11 selects PIO mode3. Setting 00
restores the drive's "default" PIO mode, and 01
disables IORDY. |
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