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       tk_scsiformat  -  low level format an scsi disk device with a nice user


       tk_scsiformat [device]


       Low level formats the SCSI  device  identified  by  the  scsi  disk  or
       generic  scsi  device  node  device.   You must be root to perform this
       operation. When you do not specify a device, tk_scsiformat gives you  a
       list to select a disk device from.

       tk_scsiformat is a Tcl/Tk user interface to scsiformat(8).

       You  should  read  that  manual  page  for  the  general  operation  of
       scsiformat.  All common X11 and Tcl/Tk options apply.

       By the nature of graphical user interfaces, there should not be much to
       explain here. All entry fields refer directly to scsiformat(8) options.

       In addition to those, you are able to save your selections to  be  used
       as    defaults    for    this    device    next    time   in   a   file
       /usr/lib/scsi/scsiformat.defs.*   by  pressing  the   <Save   Defaults>
       button.  This  is  intended  and very handy for formatting of removable
       medias.  Note,  however,  that  tk_scsiformat  is  not  as  clever   as
       scsiformat(8)  (or  even tries to be) to find if multiple ways to refer
       to the same scsi device (disk device, generic device).

       Furthermore,  you  can  select  (or  enter   freely)   a   command   to
       automatically make a file system on the newly formatted disk.

       While  formatting  a  nice  completion  bar is drawn. Alas, I could not
       really implement querying progress from a target device yet.

       The /usr/lib/scsi/tworands binary  is  used  to  calculate  two  random
       integers which is not supported by plain Tcl/Tk.


       When  not  specifying  a device to format, tk_scsiformat will prepare a
       list of disk devices  to  choose  from.  Alas,  if  a  blocking  format
       operation  is running on one of them, tk_scsiformat will block in a non
       interruptible disk wait sleep.

       Old status files in /tmp will confuse tk_scsiformat.  However, they are
       removed after 48 hours.

       Restrictions of the SCSI_IOCTL_SEND_COMMAND ioctl(2) call for the sd(4)
       device make it impossible to issue a FORMAT_UNIT command with more than
       4096  bytes  of  arguments.  This  could be avoided by using the proper
       generic scsi device /dev/sg* instead, at  least  where  the  kernel  is
       compiled  to support it. Most of the time this is not needed though and
       thus I’m myself to lazy to do it.




       scsiformat(8), scsiinfo(8), scsi-config(8), fdisk(8), sd(4).


       Michael Weller <>