SUMMARY : dump : what device name?

From: Waqar Hafiz (
Date: Tue Jan 21 1997 - 04:31:23 CST

Original Question

I've seen dump command used with both raw device (e.g. /dev/rsd0a)
and 'plain' device (e.g. /dev/sd0a).
Which one is correct?
Do they both accomplish the same object?

Although raw device name (e.g. /dev/rsd0a) should be used, both dump
and ufsdump are smart enough to figure out the raw device name given
the block device name (e.g. /dev/sd0a).

Most of the people also suggested ( and I agree ) to use the mount
point of the filesystem (e.g. /usr /home) with the dump command and
let the system figure out the device name from fstab/vfstab.

My thanks to the following for their valuable contributions:

Dan Pritts <> (Mr Rene Occelli)
"Matthew Stier" <Matthew.Stier@MCI.Com>
Andi Paton <>
Rich Kulawiec <>
Glenn Satchell - Uniq Professional Services <> (Brett Lymn)

Waqar Hafiz
email :

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