tar not working

[fireteller]

On OSX 10.8.2, install worked and mt command functions as documented.  dd command also works. However, tar fails:

% tar cvf /dev/rst0 ~/Desktop

tar: Failed to open '/dev/rst0'

Exit 1

% which tar

/usr/bin/tar

% which mt

/usr/local/bin/mt

% tar --version

bsdtar 2.8.3 - libarchive 2.8.3

% ioreg -r -c IOSCSIPeripheralDeviceNub

+-o IOSCSIHierarchicalLogicalUnit@0000000000000000  <class IOSCSIHierarchicalLogicalUnit, id 0x1000004c4, registered, matched, active, busy 0 (56 ms), re$

  | {

  |   "SCSI Logical Unit Bytes" = <0000000000000000>

  |   "IOCFPlugInTypes" = {"7D66678E-08A2-11D5-A1B8-0030657D052A"="IOSCSIArchitectureModelFamily.kext/Contents/PlugIns/SCSITaskUserClient.kext/Contents/P$

  |   "SCSITaskDeviceCategory" = "SCSITaskUserClientDevice"

  |   "IOPowerManagement" = {"MaxPowerState"=1,"DevicePowerState"=1,"CurrentPowerState"=1,"ChildProxyPowerState"=1,"DriverPowerState"=1}

  |   "CurrentPowerState" = 1

  |   "IOUserClientClass" = "SCSITaskUserClient"

  |   "Peripheral Device Type" = 1

  |   "SCSI Logical Unit Number" = 0

  |   "IOMatchCategory" = "SCSITaskUserClientIniter"

  |   "Vendor Identification" = "HP"

  |   "Protocol Characteristics" = {"Write Time Out Duration"=30000,"Read Time Out Duration"=30000,"Physical Interconnect"="SAS","SCSI Target Identifier"$

  |   "INQUIRY Device Identification" = ({"Identifier Type"=3,"Code Set"=1,"Identifier"=<500110a00138f8ca>,"Association"=0},{"Identifier Type"=3,"Code Se$

  |   "Product Revision Level" = "Z38D"

  |   "Product Identification" = "Ultrium 5-SCSI"

  |   "SCSITaskUserClient GUID" = <0054fb6380ffffffb1cf78fc02000000>

  |   "IOUnitLUN" = 0

  |   "TPGS Information" = 16

  |   "IOUnitLUNBytes" = <0000000000000000>

  | }

  | 

  +-o IOSCSITape  <class IOSCSITape, id 0x1000004f7, !registered, !matched, active, busy 0, retain 4>

  +-o SCSITaskUserClientIniter  <class SCSITaskUserClientIniter, id 0x1000004f8, !registered, !matched, active, busy 0, retain 4>

[snip other devices]

Any help would be appreciated.

Thanks,

f

[fireteller]

Please disregard, it seems to be working now.

[Old Time SCSI]

I had the same problem at first.  sudo-ing the tar command fixed the problem.  I chalk it up to a poor error message from tar... and standard unix permissions.  It threw me for a few minutes, because I didn't expect the driver to work, but once I figured that out, everything has been running well.