Fazekas,

What computer are you using?  The TK50 is not really supported
(yet) on the Vaxstation 3100.

If it is a Qbus system, I believe you could do something like:

dd if=/dev/zero of=/dev/rmt0 bs=1024 count=95000

but I haven't tried it.  I also find a bulk tape eraser to 
be particularly effective.

Doug


On Thu, 25 May 2000, Fazekas Mihaly wrote:

> 
> I'm from hungary and my english is not good.
> 
> How can i format /erase my TK50?
> 
> What is NetBSD equivalent command 
> of VMS command: "INITIALIZE MUA0: /ERASE"
> 
> I think, MUA0: device NetBSD equivalent: /dev/rmt0
> But if i type a command: "mt -f /dev/rmt0 erase",
> the system response: "Bad ioctl: 9"
> 
> Can i use the tape as normal filesystem?
> (after VMS command "MOUNT MUA0: $LABEL", can use DIRECTORY (unix: ls)
> and other commands.)
> Ok, very-very slow, but.....
> 
> Other: if i want back up the current directory to the tape, i'm typing
> the command: "tar --preserve -cvf /dev/rmt0 *.log"
> The system response:
> "/netbsd: mt0: drive 0 soft error datagram (continuing): unit 0: tape
> transfer error, grp 0x1f00 event 0350: data error (uncorrectable ecc)
> (code 8, subcoe 7)"
> 
> and the:
> "/netbsd: mt0: error 8 (data error)"
> 
> and the:
> "/netbsd: mt0: bad status 12"
> 
> What is wrong?
> 
> --
> mailto:michael@goliat.eik.bme.hu
> Phone: 463-1966
> 
>