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tk_scsiformat(8) Scsiinfo User's Guide tk_scsiformat(8)
NAME
tk_scsiformat - low level format an scsi disk device with a nice user interface
SYNOPSIS
tk_scsiformat [device]
DESCRIPTION
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 De-
faults> 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 sys-
tem on the newly formatted disk.
While formatting a nice completion bar is drawn. Alas, I could not really implement query-
ing 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.
BUGS
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_scsi-
format 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 im-
possible 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.
FILES
/usr/lib/scsi/tworands
/usr/lib/scsi/scsiformat.defs.*
/tmp/scsiformat.xx:xx:xx:xx:xxxxxxxx
/dev/sd*
/dev/sg*
SEE ALSO
scsiformat(8), scsiinfo(8), scsi-config(8), fdisk(8), sd(4).
AUTHOR
Michael Weller <eowmob AT exp-math.de>
scsiinfo 1.7 23 August 1997 tk_scsiformat(8)
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