05-10-2008
dd using Digital Unix Tru64
Hi I am posting this in this area because I couldn't find a better place.
I am trying to make exact copies of my disk that I use in an old DEC3000.
I loaded the one disk then used dd
dd if=/dev/rrz0c of=/dev/rrz1c
I started this a 6pm last night here in Wales.
It is now 2pm the next day, that is approximately 20 hours.
This is an 18.2 GB scsi hard drive.
How long do you figure it will take to complete?
Is there an easier way or at least faster?
I was talking to one of my colleagues an he said oh it probably will transfer at 5MB a minute......that's about 1 day...is this right or is it longer?
The read/write led is on with both drives.
Seems to be working.
I used dd with an Ultra5 and ide disks using solaris and it only took about 4 hours.
Thanks for any help
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LEARN ABOUT OSX
installboot
installboot(1M) installboot(1M)
NAME
installboot - install bootblocks in a disk partition
SYNOPSIS
installboot bootblk raw-disk-device
The boot(1M) program, ufsboot, is loaded from disk by the bootblock program which resides in the boot area of a disk partition.
The ufs boot objects are platform-dependent, and reside in the /usr/platform/platform-name/lib/fs/ufs directory. The platform name can be
found using the -i option of uname(1).
The installboot utility is a SPARC only program. It is not supported on the architecture. users should use installgrub(1M) instead.
bootblk The name of the bootblock code.
raw-disk-device The name of the disk device onto which the bootblock code is to be installed; it must be a character device which is read-
able and writable. Naming conventions for a SCSI or IPI drive are c?t?d?s? and c?d?s? for an IDE drive.
Example 1: Installing UFS Boot Block
To install a ufs boot block on slice 0 of target 0 on controller 1 of the platform where the command is being run, use:
example# installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk
/dev/rdsk/c1t0d0s0
/usr/platform/platform-name/lib/fs/ufs
directory where ufs boot objects reside.
/platform/platform-name/ufsboot
second level program to boot from a disk or CD
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
od(1), uname(1), boot(1M), init(1M), kadb(1M), kernel(1M), monitor(1M), reboot(1M), rpc.bootparamd(1M), init.d(4), attributes(5)
WARNINGS
The installboot utility fails if the bootblk or openfirmware files do not exist or if the raw disk device is not a character device.
11 Apr 2005 installboot(1M)