bin/106973: 'tar' cannot read own tape, but 'pax' can

[CAdams]

The following reply was made to PR bin/106973; it has been noted by GNATS.

From: CAdams <salsafresh at yahoo.com>
To: bug-followup at FreeBSD.org, bdluevel at heitec.net
Cc:  
Subject: bin/106973: 'tar' cannot read own tape, but 'pax' can
Date: Thu, 18 Jan 2007 20:50:42 -0800 (PST)

 Exact same problem, with different hardware
 (SDX-900V).  cp and pax read tape created with tar -cf
 /dev/nsa0, tar does not.  Changing blocksize changes
 point where error occurs.  Problem does not occur with
 a 5.4 install.
 
 Here are my results--
 #mt -f /dev/sa0 seteotmodel 1
 /dev/sa0: old model was 1 filemark at EOT
 /dev/sa0: new model is 1 filemark at EOT
 # mt -f /dev/sa0 rewind
 # tar cvfb /dev/sa0 1 . ; tar tvfb /dev/sa0 1
 a .
 a altq
 a arpa
 a bsm
 a bsnmp
 a c++
 a cam
 a crypto
 ...
 a altq/altq_var.h
 a altq/altqconf.h
 a altq/if_altq.h
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 .
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 altq
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 arpa
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 bsm
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 bsnmp
 drwxr-xr-x  0 root   wheel       0 Jan 12 00:38 c++
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 cam
 
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 crypto
 drwxr-xr-x  0 root   wheel       0 Jan 12 00:38 dev
 drwxr-xr-x  0 root   wheel       0 Jan 12 00:38 fs
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 geom
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 gnu
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 gpib
 drwxr-xr-x  0 root   wheel       0 Jan 12 00:38 isofs
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 kadm5
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 libmilter
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 lwres
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 machine
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 net
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 net80211
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netatalk
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 netatm
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netgraph
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netinet
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netinet6
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netipsec
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 netipx
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 netkey
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 netnatm
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 netncp
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 netsmb
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 nfs
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 nfsclient
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 nfsserver
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 objc
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 openssl
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 pccard
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 posix4
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 protocols
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 readline
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 rpc
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 rpcsvc
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39
 security
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 sys
 drwxr-xr-x  0 root   wheel       0 Jan 12 00:38 ufs
 drwxr-xr-x  0 root   wheel       0 Jan 15 05:39 vm
 -r--r--r--  0 root   wheel    2176 Jan 12 00:38
 a.out.h
 -r--r--r--  0 root   wheel    2901 Jan 12 00:38 ar.h
 -r--r--r--  0 root   wheel    2739 Jan 12 00:38
 assert.h
 -r--r--r--  0 root   wheel    1537 Jan 12 00:38
 bitstring.h
 -r--r--r--  0 root   wheel    2107 Jan 12 00:38
 complex.h
 -r--r--r--  0 root   wheel    2466 Jan 12 00:38 cpio.h
 -r--r--r--  0 root   wheel    5547 Jan 12 00:38
 _ctype.h
 -r--r--r--  0 root   wheel    4831 Jan 12 00:38
 ctype.h
 tar: Unrecognized archive format: Inappropriate file
 type or format
 
 # tar cvfb /dev/sa0 2 . ; tar tvfb /dev/sa0 2
 Exact same results as above...
 
 
 
 
 
  
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