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>From: "Bruce Ackman" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: linux tar incompatible with SCO Unix tar?
>Date: Wed, Jun 21, 2000, 11:43 PM
>
I've done a little more experimenting today.
Both tape drives work fine as long as they're reading and writing tapes they
wrote (on the original system they're installed in). I can't get a tape
written on one to be read by other. So far I've tar'd (with different
blocking factors tried), I've cat'd text files to the tape device and I've
dd'd. No luck.
When I try to read a tape written on the SCO box with the Linux machine I
get an error of the type
st0:Error with sense data: Info fld=0xf44, ILI Current st09:00 sense key
Medium Error (different hex numbers for fld, but you get the picture).
This weekend is my 15th anniversary. Since I've got nothing better to do,
I'll try making a bunch of tapes on each machine, then swapping the drives
and finding out whether the problem is in the drives or the OS's (I hope I
figure it out)
> I've been running the Pick database system on SCO Unix system V for a while
> now and am upgrading to Pick's newest release (D3) on rRedHat Linux 6.1.
> Not wanting to upgrade both the OS and database on the machine I depend on,
> I built a cheap Pentium white box. Linux installed fine. Since I use 4mm
> DDS-1 for backup on the Unix system, I scrounged one up for my Linux system
> ($200 bucks for an HP 35470A).
>
> Now my trouble starts. According to Hewlett Packard my tw DAT drives should
> be 100% compatible (HP C1536A on SCO, HP 35470A on Linux). Neither one can
> read tapes tar'd by the other! Both work fine by themselves.
>
> I still have some stuff to tryout. A friend suggested I try tar'ing on a
> 3.5 floppy,if that was cross platform readable then the problem must not be
> tar, but something about one or the other tape drive (or both). He also
> suggested I try cat /dev/rst0 | od -c on a tape tar'd on "the other system".
> There's cpio, and just cat'ing a text file to the raw device and trying to
> cat it back off "the other one".
>
> What I really want to be able to do is backup my Pick data from Unix and
> restore it on Linux. Is that too much to ask?
>
> thanks in advance for your help
> Bruce ackman
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