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Date:      Fri, 15 Jan 2016 20:58:29 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 206296] mt - write protect is not reported in status
Message-ID:  <bug-206296-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206296

            Bug ID: 206296
           Summary: mt - write protect is not reported in status
           Product: Base System
           Version: 10.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: andrew@grillet.co.uk

The mt command does not show the "write protect" status of a tape. This wou=
ld
presumably apply to other devices that support write protection, but I cann=
ot
test for that.=20

You cannot write to write protected tapes (see BID9933), and get an error if
you try - but it is very hard to find the error message if you tar to a wri=
te
protected tape using a remote login, and if you use a changer remotely, thi=
s is
seriously hard to debug!=20

So two bugs (possibly feature requests):

1) mt -f /dev/sa0 status
# Should report "Write protected" or "Write enabled" as appropriate
# I tried to implement this myself, but I think it might be easier for some=
one
else to do it!

2) tar c -f /dev/sa0 file
# should write "Error: target is Write protected" to stderr
# which presumably requires significant design effort, as both cam and tar
# would need changes.

--=20
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