04-10-2008
how to modify ramdisk size,kinda urgent !!!
Hi all,
I wanted to know how to modify the size of the ramdisk?
I mean am manipulating a live cd ,for which the file am manipulating is within a ramdisk now due to size constraints i am unable to play around with some stuff....
currently the size of the ram disk is 64M...
I would like to increase its size....
how do i do it?
Also i have very little idea about ramdisks...so wanted to know how it will affect the size of my livecd...
I mean to say...can i fit in a ,say 650mb ramdisk file into a livecd ...
(with all the other dependent files in working state of-course)
Its kinda urgent, so pls reply fast
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LEARN ABOUT OPENDARWIN
pseudo
pseudo(4) File Formats pseudo(4)
NAME
pseudo - configuration files for pseudo device drivers
DESCRIPTION
Pseudo devices are devices that are implemented entirely in software. Drivers for pseudo devices must provide driver configuration files to
inform the system of each pseudo device that should be created.
Configuration files for pseudo device drivers must identify the parent driver explicitly as pseudo, and must create an integer property
called instance which is unique to this entry in the configuration file.
Each entry in the configuration file creates a prototype devinfo node. Each node is assigned an instance number which is determined by the
value of the instance property. This property is only applicable to children of the pseudo parent, and is required since pseudo devices
have no hardware address from which to determine the instance number. See driver.conf(4) for further details of configuration file syntax.
EXAMPLES
Example 1: A sample configuration file.
Here is a configuration file called ramdisk.conf for a pseudo device driver that implements a RAM disk. This file creates two nodes called
"ramdisk". The first entry creates ramdisk node instance 0, and the second creates ramdisk node, instance 1, with the additional disk-size
property set to 512.
#
# Copyright (c) 1993, by Sun Microsystems, Inc.
#
#ident "@(#)ramdisk.conf 1.3 93/06/04 SMI"
name="ramdisk" parent="pseudo" instance=0;
name="ramdisk" parent="pseudo" instance=1 disk-size=512;
SEE ALSO
driver.conf(4), ddi_prop_op(9F)
Writing Device Drivers
SunOS 5.10 15 Jun 1993 pseudo(4)