/dev/fd : -> 0x0200 (floppy disk)
/dev/xda: -> 0x0c00 (first XT disk, unused in Linux/m68k)
/dev/xdb: -> 0x0c40 (second XT disk, unused in Linux/m68k)
- /dev/ada: -> 0x1c00 (first ACSI device)
- /dev/adb: -> 0x1c10 (second ACSI device)
- /dev/adc: -> 0x1c20 (third ACSI device)
- /dev/add: -> 0x1c30 (forth ACSI device)
-
-The last four names are available only if the kernel has been compiled
-with Atari and ACSI support.
The name must be followed by a decimal number, that stands for the
partition number. Internally, the value of the number is just
the first of these. You can find out all valid major numbers by
looking into include/linux/major.h.
+In addition to major and minor numbers, if the device containing your
+root partition uses a partition table format with unique partition
+identifiers, then you may use them. For instance,
+"root=PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF". It is also
+possible to reference another partition on the same device using a
+known partition UUID as the starting point. For example,
+if partition 5 of the device has the UUID of
+00112233-4455-6677-8899-AABBCCDDEEFF then partition 3 may be found as
+follows:
+ PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF/PARTNROFF=-2
+
+Authoritative information can be found in
+"Documentation/kernel-parameters.txt".
+
2.2) ro, rw
-----------
seconds.
-2.6) ramdisk=
+2.6) ramdisk_size=
-------------
-Syntax: ramdisk=<size>
+Syntax: ramdisk_size=<size>
This option instructs the kernel to set up a ramdisk of the given
size in KBytes. Do not use this option if the ramdisk contents are
The first 3 parameters of this sub-option should be obvious: <xres>,
<yres> and <depth> give the dimensions of the screen and the number of
-planes (depth). The depth is is the logarithm to base 2 of the number
+planes (depth). The depth is the logarithm to base 2 of the number
of colors possible. (Or, the other way round: The number of colors is
2^depth).
24 bit region which is specified by a mask of 0x00fffffe.
-5.5) 53c7xx=
-------------
-
-Syntax: 53c7xx=<sub-options...>
-
-These options affect the A4000T, A4091, WarpEngine, Blizzard 603e+,
-and GForce 040/060 SCSI controllers on the Amiga, as well as the
-builtin MVME 16x SCSI controller.
-
-The <sub-options> is a comma-separated list of the sub-options listed
-below.
-
-5.5.1) nosync
--------------
-
-Syntax: nosync:0
-
- Disables sync negotiation for all devices. Any value after the
- colon is acceptable (and has the same effect).
-
-5.5.2) noasync
---------------
-
-Syntax: noasync:0
-
- Disables async and sync negotiation for all devices. Any value
- after the colon is acceptable (and has the same effect).
-
-5.5.3) nodisconnect
--------------------
-
-Syntax: nodisconnect:0
-
- Disables SCSI disconnects. Any value after the colon is acceptable
- (and has the same effect).
-
-5.5.4) validids
----------------
-
-Syntax: validids:0xNN
-
- Specify which SCSI ids the driver should pay attention to. This is
- a bitmask (i.e. to only pay attention to ID#4, you'd use 0x10).
- Default is 0x7f (devices 0-6).
-
-5.5.5) opthi
-5.5.6) optlo
-------------
-
-Syntax: opthi:M,optlo:N
-
- Specify options for "hostdata->options". The acceptable definitions
- are listed in drivers/scsi/53c7xx.h; the 32 high bits should be in
- opthi and the 32 low bits in optlo. They must be specified in the
- order opthi=M,optlo=N.
-
-5.5.7) next
------------
-
- No argument. Used to separate blocks of keywords when there's more
- than one 53c7xx host adapter in the system.
-
-
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