Unified / and /usr: good or bad idea?

From: Ralf W. Grosse-Kunstleve <rwgk_at_laplace.csb.yale.edu>
Date: Wed, 25 Feb 1998 12:49:30 -0500 (EST)

I am running 4.0C.
I copied the whole system with dump/restore to an external disk with
only one ufs partition (and one swap partition). Booting that
system seemed ok, so I repartitioned the internal drive to also have
only the rz*a and rz*b partitions and copied the whole system back.
So far everything seems to work just fine. Therefore I was wondering
why the default is to have the disk artificially fragmented.
Is there a bad catch when running DEC Unix with unified / and /usr
partitions?
Ralf

P.S.: here is what I did (twice) to copy the whole system to another disk:
    newfs /dev/rrz29a /dev/rrz29a
    mount /dev/rz29a /mnt
    dump 0f - / | ( cd /mnt ; restore rf - )
    dump 0f - /usr | ( cd /mnt/usr ; restore rf - )
    cp -p /mnt/genvmunix /mnt/vmunix
    edit /mnt/etc/fstab: change definition of root and swap device
    rm /mnt/sbin/swapdefault
    shutdown -h now
    boot dkd500.5.0.1010.0
    Rebuild kernel (just to be clean)
Received on Wed Feb 25 1998 - 18:49:42 NZDT

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