damour@rocket.UUCP (Kevin Damour) (08/21/89)
Hello,
I tried to backup our AUX 1.1 disk using dump.bsd and/or tar
but have run into a few problems. I am using Apple's tape unit.
I tried using "tar cvfB - 77100 . | tcb > /dev/rmt/tc2" but after
the first tape was replaced the an I/O error message was given.
On the dump.bsd side (I am sure that a parameter or two is missing)
a bread error was given with a incorrect count.
Can someone shed alittle light on a good command line to use?
Thank you for your time,
Kevin Damour
uunet!rocket!damourdwells@Apple.COM (Dave Wells) (08/29/89)
In article <681@rocket.UUCP> damour@rocket.UUCP (Kevin Damour) writes: > I tried to backup our AUX 1.1 disk using dump.bsd and/or tar >but have run into a few problems. I am using Apple's tape unit. >I tried using "tar cvfB - 77100 . | tcb > /dev/rmt/tc2" but after >the first tape was replaced the an I/O error message was given. >On the dump.bsd side (I am sure that a parameter or two is missing) >a bread error was given with a incorrect count. > Can someone shed alittle light on a good command line to use? Kevin, These ought to work. My A/UX system isn't up right now, so I can't verify. My apologies if anything here is ridiculously fundamental. First, set the TAPE environment variable to point at your tape device: In .profile or .login (assuming your tape drive is at SCSI ID#2): TAPE=/dev/rmt/tc2 export TAPE Now you can use the mt command to get info about your tapes. mt status mt rewind etcetera... check the man pages for more A command line for tar ---------------------- tar cvbBf 16 77000 /dev/rmt/tc2 / c : create new archive v : tell me what's going on b : use next available argument (16) as 'blocking factor' (The tape drive requires 8K pieces of data - 16 blocks of 512B = 8K) B : use next available argument (~77000) as total blocks per tape (only needed if data exceeds 1 tape) f : use next available argument as backup device / : back up from the root file system A command line for dump.bsd --------------------------- (after making sure /etc/dumpdates exists) dump.bsd 0uc /dev/dsk/c0d0s0 0 : 0 level backup - get everything. u : update the backup date in /etc/dumpdates c : block output for tape drive and use the drive at TAPE Hope this helps. -Dave -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Dave Wells, Apple Computer, Inc. MS: 37-Y (408) 974-5515 Mail: dwells@apple.com or AppleLink d.wells or GEnie D.WELLS These opinions may be nothing more than the ramblings of a fatigued tinkerer -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-