1.5.12: mt sees incorrect maximum block size

Richard Simon rlsimon@killerobot.com
Tue Dec 14 22:36:00 GMT 2004


when I attempt to set the correct block size with mt (or try to do so with tar) I am unable to do so.
mt status 2 reports a maximum block size of 65535, whereas the windows driver and the winTarSCSI utility both report a much larger maximum block size of 16777214 

I can use the winTarSCSI utility to write tapes with a block size of 262144, but tar under cygwin will not write with a block size larger than 65535.

I have tried reinstalling the tape driver and reinstalling cygwin.
I'm using cygwin 1.5.12, mt 2.3, tat 1.13.25.
Installed on Windows XP professional, Service Pack 1.
PIII, 800Mhz, 1GB ram.

Why is cygwin seeing this incorrectly and how do I fix it? 

below I've pasted my cygcheck file

Richard Simon
Giant Killer Robots
361 Brannan St.
San Francisco, CA 94107
(415) 777-2477



Cygwin Configuration Diagnostics
Current System Time: Tue Dec 14 14:32:05 2004

Windows XP Professional Ver 5.1 Build 2600 Service Pack 1

Path:	C:\cygwin\usr\local\bin
	C:\cygwin\bin
	C:\cygwin\bin
	C:\cygwin\usr\X11R6\bin
	C
	c:\Perl\bin\
	c:\Program Files\AliasWavefront\Maya5.0\bin
	c:\Program Files\Shake-v2.46.0116
	c:\WINDOWS\system32
	c:\WINDOWS
	c:\WINDOWS\System32\Wbem
	c:\rush\bin
	w:\Approved\utilities\tools
	c:\Program Files\Sonic\MyDVD
	.\
	c:\Program Files\Sonic\MyDVD
	.\
	c:\PROGRA~1\ABSOLU~1
	c:\Program Files\Common Files\Ulead Systems\MPEG
	c:\Program Files\Sonic\MyDVD
	%
	c:\PROGRA~1\ABSOLU~1

Output from C:\cygwin\bin\id.exe (nontsec)
UID: 10500(administrator) GID: 10545(mkgroup_l_d)
10545(mkgroup_l_d)

Output from C:\cygwin\bin\id.exe (ntsec)
UID: 10500(administrator) GID: 10545(mkgroup_l_d)
0(root)                   544(Administrators)       545(Users)
10545(mkgroup_l_d)

SysDir: C:\WINDOWS\System32
WinDir: C:\WINDOWS

HOME = `c:\Documents and Settings\Administrator'
MAKE_MODE = `unix'
PWD = `/cygdrive/c/Documents and Settings/Administrator'
USER = `administrator'

ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
APPDATA = `C:\Documents and Settings\Administrator\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `SILVAR'
COMSPEC = `C:\WINDOWS\system32\cmd.exe'
CVS_RSH = `/bin/ssh'
EYEON_LICENSE_FILE = `@OLDCALCULON'
HOMEDRIVE = `C:'
HOMEPATH = `\Documents and Settings\Administrator'
HOSTNAME = `silvar'
INFOPATH = `/usr/local/info:/usr/info:/usr/share/info:/usr/autotool/devel/info:/usr/autotool/stable/info:'
LOGONSERVER = `\\BILLY'
MANPATH = `/usr/local/man:/usr/man:/usr/share/man:/usr/autotool/devel/man:'
MAYA_HELP_URL = `http://mayadocs.killerobot.com/Maya5.0/en_US/'
NR_ICON_PATH = `\\calculon\central\z\Approved\shake\nreal25\icons'
NR_INCLUDE_PATH = `\\calculon\central\z\Approved\shake\nreal25\include_merge'
NUMBER_OF_PROCESSORS = `2'
OLDPWD = `/usr/bin'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PRINTER = `\\voltar\HP LaserJet 3300 Series PCL 6'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 8 Stepping 6, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0806'
PROGRAMFILES = `C:\Program Files'
PROMPT = `$P$G'
PS1 = `\[\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
RUSH_DIR = `c:\rush'
SESSIONNAME = `Console'
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINDOWS'
TEMP = `C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp'
TERM = `cygwin'
TMP = `C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp'
USERDNSDOMAIN = `KILLEROBOT.COM'
USERDOMAIN = `KILLEROBOT'
USERNAME = `administrator'
USERPROFILE = `C:\Documents and Settings\Administrator'
WINDIR = `C:\WINDOWS'
_ = `/usr/bin/cygcheck'
POSIXLY_CORRECT = `1'

HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
  (default) = `/cygdrive'
  cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
  (default) = `C:\cygwin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
  (default) = `C:\cygwin/bin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
  (default) = `C:\cygwin/lib'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options

a:  fd             N/A    N/A                    
c:  hd  NTFS     19586Mb  87% CP CS UN PA FC     
d:  cd             N/A    N/A                    
m:  net NTFS     29306Mb  55% CP CS UN PA FC     
q:  net NTFS      8738Mb  74% CP CS UN PA FC     
s:  net NTFS      8738Mb  74% CP CS UN PA FC     
v:  net NTFS    350004Mb  93% CP CS UN PA FC     Video
w:  net NTFS      8738Mb  74% CP CS UN PA FC     
x:  net NTFS   5238279Mb  89% CP CS UN PA        LSI-0
z:  net NTFS   5238279Mb  89% CP CS UN PA        LSI-0

C:\cygwin      /          system  binmode
C:\cygwin/bin  /usr/bin   system  binmode
C:\cygwin/lib  /usr/lib   system  binmode
.              /cygdrive  system  binmode,cygdrive

Found: C:\cygwin\bin\awk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: w:\Approved\utilities\tools\cat.exe
Warning: C:\cygwin\bin\cat.exe hides w:\Approved\utilities\tools\cat.exe
Found: C:\cygwin\bin\cp.exe
Found: w:\Approved\utilities\tools\cp.exe
Warning: C:\cygwin\bin\cp.exe hides w:\Approved\utilities\tools\cp.exe
Not Found: cpp (good!)
Found: C:\cygwin\bin\find.exe
Found: w:\Approved\utilities\tools\find.exe
Warning: C:\cygwin\bin\find.exe hides w:\Approved\utilities\tools\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin\bin\grep.exe
Found: w:\Approved\utilities\tools\grep.exe
Warning: C:\cygwin\bin\grep.exe hides w:\Approved\utilities\tools\grep.exe
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Found: w:\Approved\utilities\tools\ls.exe
Warning: C:\cygwin\bin\ls.exe hides w:\Approved\utilities\tools\ls.exe
Not Found: make
Found: C:\cygwin\bin\mv.exe
Found: w:\Approved\utilities\tools\mv.exe
Warning: C:\cygwin\bin\mv.exe hides w:\Approved\utilities\tools\mv.exe
Found: C:\cygwin\bin\rm.exe
Found: w:\Approved\utilities\tools\rm.exe
Warning: C:\cygwin\bin\rm.exe hides w:\Approved\utilities\tools\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: w:\Approved\utilities\tools\sed.exe
Warning: C:\cygwin\bin\sed.exe hides w:\Approved\utilities\tools\sed.exe
Found: C:\cygwin\bin\sh.exe
Found: w:\Approved\utilities\tools\sh.exe
Warning: C:\cygwin\bin\sh.exe hides w:\Approved\utilities\tools\sh.exe
Found: C:\cygwin\bin\tar.exe
Found: w:\Approved\utilities\tools\tar.exe
Warning: C:\cygwin\bin\tar.exe hides w:\Approved\utilities\tools\tar.exe

   18k 2004/07/06 C:\cygwin\bin\cygcharset-1.dll - os=4.0 img=1.0 sys=4.0
                  "cygcharset-1.dll" v0.0 ts=2004/7/6 11:09
   40k 2004/10/10 C:\cygwin\bin\cygform-8.dll - os=4.0 img=1.0 sys=4.0
                  "cygform-8.dll" v0.0 ts=2004/10/10 1:33
   45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
                  "cygform5.dll" v0.0 ts=2001/4/24 22:28
   35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
                  "cygform6.dll" v0.0 ts=2002/1/8 22:03
   48k 2003/08/09 C:\cygwin\bin\cygform7.dll - os=4.0 img=1.0 sys=4.0
                  "cygform7.dll" v0.0 ts=2003/8/9 2:25
   28k 2003/07/20 C:\cygwin\bin\cyggdbm-3.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm-3.dll" v0.0 ts=2003/7/20 0:58
   30k 2003/08/11 C:\cygwin\bin\cyggdbm-4.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm-4.dll" v0.0 ts=2003/8/10 19:12
   19k 2003/03/22 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm.dll" v0.0 ts=2002/2/19 19:05
   15k 2003/07/20 C:\cygwin\bin\cyggdbm_compat-3.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm_compat-3.dll" v0.0 ts=2003/7/20 1:00
   15k 2003/08/11 C:\cygwin\bin\cyggdbm_compat-4.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm_compat-4.dll" v0.0 ts=2003/8/10 19:13
  107k 2004/07/06 C:\cygwin\bin\cyggettextlib-0-14-1.dll - os=4.0 img=1.0 sys=4.0
                  "cyggettextlib-0-14-1.dll" v0.0 ts=2004/7/6 10:56
   17k 2004/07/06 C:\cygwin\bin\cyggettextpo-0.dll - os=4.0 img=1.0 sys=4.0
                  "cyggettextpo-0.dll" v0.0 ts=2004/7/6 10:56
  190k 2004/07/06 C:\cygwin\bin\cyggettextsrc-0-14-1.dll - os=4.0 img=1.0 sys=4.0
                  "cyggettextsrc-0-14-1.dll" v0.0 ts=2004/7/6 10:56
   17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory4.dll" v0.0 ts=2001/1/6 20:34
   29k 2003/08/10 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory5.dll" v0.0 ts=2003/8/10 16:16
   25k 2004/10/12 C:\cygwin\bin\cyghistory6.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory6.dll" v0.0 ts=2004/10/11 23:51
  991k 2004/07/06 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
                  "cygiconv-2.dll" v0.0 ts=2004/7/6 11:10
   22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
                  "cygintl-1.dll" v0.0 ts=2001/12/13 1:28
   37k 2003/08/10 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
                  "cygintl-2.dll" v0.0 ts=2003/8/10 14:50
   54k 2004/07/06 C:\cygwin\bin\cygintl-3.dll - os=4.0 img=1.0 sys=4.0
                  "cygintl-3.dll" v0.0 ts=2004/7/6 10:51
   12k 2003/02/17 C:\cygwin\bin\cygioperm-0.dll - os=4.0 img=1.0 sys=4.0
                  "cygioperm-0.dll" v0.0 ts=2003/2/17 11:58
   22k 2004/10/10 C:\cygwin\bin\cygmenu-8.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu-8.dll" v0.0 ts=2004/10/10 1:33
   26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu5.dll" v0.0 ts=2001/4/24 22:27
   20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu6.dll" v0.0 ts=2002/1/8 22:03
   29k 2003/08/09 C:\cygwin\bin\cygmenu7.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu7.dll" v0.0 ts=2003/8/9 2:25
   74k 2004/10/10 C:\cygwin\bin\cygncurses++-8.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++-8.dll" v0.0 ts=2004/10/10 1:33
  156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++5.dll" v0.0 ts=2001/4/24 22:29
  175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++6.dll" v0.0 ts=2002/1/8 22:03
  216k 2004/10/10 C:\cygwin\bin\cygncurses-8.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses-8.dll" v0.0 ts=2004/10/10 1:25
  226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses5.dll" v0.0 ts=2001/4/24 22:17
  202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses6.dll" v0.0 ts=2002/1/8 22:03
  224k 2003/08/09 C:\cygwin\bin\cygncurses7.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses7.dll" v0.0 ts=2003/8/9 2:24
   13k 2004/10/10 C:\cygwin\bin\cygpanel-8.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel-8.dll" v0.0 ts=2004/10/10 1:32
   15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel5.dll" v0.0 ts=2001/4/24 22:27
   12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel6.dll" v0.0 ts=2002/1/8 22:03
   19k 2003/08/09 C:\cygwin\bin\cygpanel7.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel7.dll" v0.0 ts=2003/8/9 2:24
   62k 2003/12/11 C:\cygwin\bin\cygpcre-0.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcre-0.dll" v0.0 ts=2003/12/11 9:01
   63k 2003/04/11 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcre.dll" v0.0 ts=2003/4/11 1:31
    9k 2003/12/11 C:\cygwin\bin\cygpcreposix-0.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcreposix-0.dll" v0.0 ts=2003/12/11 9:01
   61k 2003/04/11 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
                  "cygpcreposix.dll" v0.0 ts=2003/4/11 1:31
   22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll - os=4.0 img=1.0 sys=4.0
                  "cygpopt-0.dll" v0.0 ts=2002/6/8 22:45
  108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline4.dll" v0.0 ts=2001/1/6 20:34
  148k 2003/08/10 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline5.dll" v0.0 ts=2003/8/10 16:16
  144k 2004/10/12 C:\cygwin\bin\cygreadline6.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline6.dll" v0.0 ts=2004/10/11 23:51
   62k 2004/10/10 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
                  "cygz.dll" v0.0 ts=2004/10/9 21:09
 1114k 2004/11/10 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2004/11/10 5:34
    Cygwin DLL version info:
        DLL version: 1.5.12
        DLL epoch: 19
        DLL bad signal mask: 19005
        DLL old termios: 5
        DLL malloc env: 28
        API major: 0
        API minor: 116
        Shared data: 4
        DLL identifier: cygwin1
        Mount registry: 2
        Cygnus registry name: Cygnus Solutions
        Cygwin registry name: Cygwin
        Program options name: Program Options
        Cygwin mount registry name: mounts v2
        Cygdrive flags: cygdrive flags
        Cygdrive prefix: cygdrive prefix
        Cygdrive default prefix: 
        Build date: Wed Nov 10 08:34:47 EST 2004
        Shared id: cygwin1S4


Cygwin Package Information
Last downloaded files to: c:\Cygwin\packages
Last downloaded files from: ftp://mirror.mcs.anl.gov/pub/cygwin.com

Package              Version
_update-info-dir     00230-1
ash                  20040127-1
base-files           3.1-4
base-passwd          2.1-1
bash                 2.05b-16
bzip2                1.0.2-6
cpio                 2.5-3
cygutils             1.2.5-1
cygwin               1.5.12-1
cygwin-doc           1.3-7
diffutils            2.8.7-1
editrights           1.01-1
fileutils            4.1-2
findutils            4.2.10-5
gawk                 3.1.4-3
gdbm                 1.8.3-7
grep                 2.5-1
groff                1.18.1-2
gzip                 1.3.5-1
ioperm               0.4-1
less                 381-1
libcharset1          1.9.2-1
libgdbm              1.8.0-5
libgdbm-devel        1.8.3-7
libgdbm3             1.8.3-3
libgdbm4             1.8.3-7
libgettextpo0        0.14.1-1
libiconv             1.9.2-1
libiconv2            1.9.2-1
libintl1             0.10.40-1
libintl2             0.12.1-3
libintl3             0.14.1-1
libncurses5          5.2-1
libncurses6          5.2-8
libncurses7          5.3-4
libncurses8          5.4-1
libpcre              4.1-1
libpcre0             4.5-1
libpopt0             1.6.4-4
libreadline4         4.1-2
libreadline5         4.3-5
libreadline6         5.0-1
login                1.9-7
man                  1.5o1-1
mktemp               1.5-3
mt                   2.3-1
ncurses              5.4-1
readline             5.0-1
sed                  4.1.2-1
sh-utils             2.0.15-4
tar                  1.13.25-5
tcsh                 6.13.00-2
termcap              20021106-2
terminfo             5.4_20041009-1
texinfo              4.2-4
textutils            2.0.21-1
which                1.5-2
zlib                 1.2.2-1
Use -h to see help about each section

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