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Initial s390-tools-2.0.0 import
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
This commit is contained in:
Michael Holzheu
@@ -0,0 +1,21 @@
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include ../common.mak
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all: dasdfmt
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libs = $(rootdir)/libdasd/libdasd.a \
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$(rootdir)/libvtoc/libvtoc.a \
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$(rootdir)/libu2s/libu2s.a \
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$(rootdir)/libutil/libutil.a
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dasdfmt: dasdfmt.o $(libs)
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install: all
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$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man8
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$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 dasdfmt $(DESTDIR)$(BINDIR)
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$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 dasdfmt.8 \
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$(DESTDIR)$(MANDIR)/man8
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clean:
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rm -f *.o *~ dasdfmt core
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.PHONY: all install clean
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@@ -0,0 +1,195 @@
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.\" Copyright 2017 IBM Corp.
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.\" s390-tools is free software; you can redistribute it and/or modify
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.\" it under the terms of the MIT license. See LICENSE for details.
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.\"
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.TH DASDFMT 8 "Apr 2006" "s390-tools"
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.SH NAME
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dasdfmt \- formatting of DASD (ECKD) disk drives.
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.SH SYNOPSIS
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\fBdasdfmt\fR [-h] [-t] [-v] [-y] [-p] [-P] [-m \fIstep\fR]
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.br
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[-r \fIcylinder\fR] [-b \fIblksize\fR] [-l \fIvolser\fR] [-d \fIlayout\fR]
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.br
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[-L] [-V] [-F] [-k] [-C] [-M \fImode\fR] \fIdevice\fR
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.SH DESCRIPTION
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\fBdasdfmt\fR formats a DASD (ECKD) disk drive to prepare it
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for usage with Linux for S/390.
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The \fIdevice\fR is the node of the device (e.g. '/dev/dasda').
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Any device node created by udev for kernel 2.6 can be used
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(e.g. '/dev/dasd/0.0.b100/disc').
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.br
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\fBWARNING\fR: Careless usage of \fBdasdfmt\fR can result in
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\fBLOSS OF DATA\fR.
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.SH OPTIONS
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.TP
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\fB-h\fR or \fB--help\fR
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Print usage and exit.
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.TP
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\fB-t\fR or \fB--test\fR
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Disables any modification of the disk drive.
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.br
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\fBdasdfmt\fR just prints
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out, what it \fBwould\fR do.
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.TP
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\fB-v\fR
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Increases verbosity.
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.TP
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\fB-y\fR
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Start formatting without further user-confirmation.
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.TP
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\fB--norecordzero\fR
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Remove permission for subsystem to format write record zero.
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.br
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This is an expert option: Per default in recent dasd drivers, subsystems are
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granted the permission to format write record zero. This option is used
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to remove this permission.
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.br
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.TP
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\fB-L\fR or \fB--no_label\fR
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Omit the writing of a disk label after formatting.
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.br
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This makes only sense for the 'ldl' disk layout.
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.br
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The '-L' option has to be specified after the '-d ldl' option.
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.br
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e.g. dasdfmt -d ldl -L /dev/...
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.TP
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\fB-V\fR or \fB--version\fR
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Print version number and exit.
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.TP
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\fB-F\fR or \fB--force\fR
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Formats the device without performing sanity checking.
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.TP
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\fB-C\fR or \fB--check_host_count\fR
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Force dasdfmt to check the host access open count to ensure the device
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is not online on another operating system instance
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.TP
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\fB-d\fR \fIlayout\fR or \fB--disk_layout\fR=\fIlayout\fR
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Formats the device with compatible disk layout or linux disk layout.
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\fIlayout\fR is either \fIcdl\fR for the compatible disk layout
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(default) or \fIldl\fR for the linux disk layout.
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.br
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Compatible disk layout means a special handling of the
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first two tracks of the volume. This enables other S/390 or zSeries
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operating systems to access this device (e.g. for backup purposes).
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.TP
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\fB-p\fR or \fB--progressbar\fR
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Print a progress bar while formatting.
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Do not use this option if you are using a 3270 console,
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running in background or redirecting the output to a file.
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.TP
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\fB-P\fR or \fB--percentage\fR
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Print one line for each formatted cylinder showing the number of the
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cylinder and percentage of formatting process.
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Intended to be used by higher level interfaces.
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.TP
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\fB-m\fR \fIstep\fR or \fB--hashmarks\fR=\fIstep\fR
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Print a hashmark every \fIstep\fR cylinders. The value \fIstep\fR has to be within range [1,1000], otherwise it will be set to the default, which is 10.
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.br
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You can use this option to see the progress of formatting in case you
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are not able to use the progress bar option -p, e.g. with a 3270
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terminal.
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.br
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The value will be at least as big as the -r or --requestsize value.
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.br
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.TP
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\fB-M\fR \fImode\fR or \fB--mode\fR=\fImode\fR
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Specify the \fImode\fR to be used to format the device. Valid modes are:
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.RS
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.IP full
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Format the entire disk with the specified blocksize. (default)
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.IP quick
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Format the first two tracks and write label and partition information. Only use
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this option if you are sure that the target DASD already contains a regular
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format with the specified blocksize. A blocksize can optionally be specified
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using \fB-b\fR (\fB--blocksize\fR).
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.IP expand
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Format all unformatted tracks at the end of the target DASD. This mode assumes
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that tracks at the beginning of the DASD volume have already been correctly
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formatted, while a consecutive set of tracks at the end are unformatted. You can
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use this mode to make added space available for Linux use after dynamically
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increasing the size of a DASD volume. A blocksize can optionally be specified
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using \fB-b\fR (\fB--blocksize\fR).
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.RE
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.TP
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\fB--check\fR
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Perform a complete format check on a DASD volume. A blocksize can be specified
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with \fB-b\fR (\fB--blocksize\fR).
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.TP
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\fB-r\fR \fIcylindercount\fR or \fB--requestsize\fR=\fIcylindercount\fR
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Number of cylinders to be processed in one formatting step.
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The value must be an integer in the range 1 - 255.
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.br
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Use this parameter to exploit any available PAV devices.
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The number of cylinders optimally matches the number of associated
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devices, counting the base device and all alias devices.
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.br
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.TP
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\fB-b\fR \fIblksize\fR or \fB--blocksize\fR=\fIblksize\fR
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Specify blocksize to be used. \fIblksize\fR must be a positive integer
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and always be a power of two. The recommended blocksize is 4096 bytes.
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.TP
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\fB-l\fR \fIvolser\fR or \fB--label\fR=\fIvolser\fR
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Specify the volume serial number or volume identifier to be written
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to disk after formatting. If no label is specified, a sensible default
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is used. \fIvolser\fR is interpreted as ASCII string and is automatically
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converted to uppercase and then to EBCDIC.
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.br
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e.g. -l LNX001 or --label=DASD01
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.br
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The \fIvolser\fR identifies by serial number the volume. A volume serial
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number is 1 through 6 alphanumeric or one of the following special
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characters: $, #, @, %. Enclose a serial number that contains special
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characters in apostrophes. If the number is shorter than six
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characters, it is padded with trailing blanks.
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.br
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Do not code a volume serial number as SCRTCH, PRIVAT, or Lnnnnn (L with
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five numbers); these are used in OS/390 messages to ask the operator to
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mount a volume. Do not code a volume serial number as MIGRAT, which is
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used by the OS/390 Hierarchical Storage Manager DFSMShsm for migrated
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data sets.
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.br
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NOTE: Try to avoid using special characters in the volume serial. This may cause problems accessing a disk by volser.
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.br
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In case you really have to use special characters, make sure you are using quotes. In addition there is a special handling for the '$' sign. Please specify it using '\\$' if necessary.
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.br
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e.g. -l 'a@b\\$c#' to get A@B$C#
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.br
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.TP
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\fB-k\fR or \fB--keep_volser\fR
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Keeps the Volume Serial Number, when writing the Volume Label. This is
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useful, if the Serial Number has been written with a VM Tool and should not
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be overwritten.
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.br
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.SH SEE ALSO
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.BR fdasd (8)
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+1713
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,350 @@
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/*
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* dasdfmt - Format DASD ECKD devices for use by Linux
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*
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* Copyright IBM Corp. 2002, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef DASDFMT_H
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#define DASDFMT_H
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#include <ctype.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <limits.h>
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#include <limits.h>
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#include <mntent.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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/****************************************************************************
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* SECTION: Definition needed for DASD-API (see dasd.h) *
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****************************************************************************/
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#define DASD_IOCTL_LETTER 'D'
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/*
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* struct dasd_information2_t
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* represents any data about the device, which is visible to userspace.
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* including format and features.
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*/
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typedef struct dasd_information2_t {
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unsigned int devno; /* S/390 devno */
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unsigned int real_devno; /* for aliases */
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unsigned int schid; /* S/390 subchannel identifier */
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unsigned int cu_type : 16; /* from SenseID */
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unsigned int cu_model : 8; /* from SenseID */
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unsigned int dev_type : 16; /* from SenseID */
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unsigned int dev_model : 8; /* from SenseID */
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unsigned int open_count;
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unsigned int req_queue_len;
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unsigned int chanq_len; /* length of chanq */
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char type[4]; /* from discipline.name, */
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/* 'none' for unknown */
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unsigned int status; /* current device level */
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unsigned int label_block; /* where to find the VOLSER */
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unsigned int FBA_layout; /* fixed block size (like AIXVOL) */
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unsigned int characteristics_size;
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unsigned int confdata_size;
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char characteristics[64]; /* from read_device_characteristics */
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char configuration_data[256]; /* from read_configuration_data */
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unsigned int format; /* format info like formatted/cdl/ldl/... */
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unsigned int features; /* dasd features like 'ro',... */
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unsigned int reserved0; /* reserved for further use ,... */
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unsigned int reserved1; /* reserved for further use ,... */
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unsigned int reserved2; /* reserved for further use ,... */
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||||
unsigned int reserved3; /* reserved for further use ,... */
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||||
unsigned int reserved4; /* reserved for further use ,... */
|
||||
unsigned int reserved5; /* reserved for further use ,... */
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unsigned int reserved6; /* reserved for further use ,... */
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unsigned int reserved7; /* reserved for further use ,... */
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} dasd_information2_t;
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struct dasd_eckd_characteristics {
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unsigned short cu_type;
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struct {
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||||
unsigned char support:2;
|
||||
unsigned char async:1;
|
||||
unsigned char reserved:1;
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||||
unsigned char cache_info:1;
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unsigned char model:3;
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} __attribute__ ((packed)) cu_model;
|
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unsigned short dev_type;
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||||
unsigned char dev_model;
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||||
struct {
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||||
unsigned char mult_burst:1;
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unsigned char RT_in_LR:1;
|
||||
unsigned char reserved1:1;
|
||||
unsigned char RD_IN_LR:1;
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||||
unsigned char reserved2:4;
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||||
unsigned char reserved3:8;
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||||
unsigned char defect_wr:1;
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||||
unsigned char XRC_supported:1;
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||||
unsigned char reserved4:1;
|
||||
unsigned char striping:1;
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||||
unsigned char reserved5:4;
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unsigned char cfw:1;
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||||
unsigned char reserved6:2;
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||||
unsigned char cache:1;
|
||||
unsigned char dual_copy:1;
|
||||
unsigned char dfw:1;
|
||||
unsigned char reset_alleg:1;
|
||||
unsigned char sense_down:1;
|
||||
} __attribute__ ((packed)) facilities;
|
||||
unsigned char dev_class;
|
||||
unsigned char unit_type;
|
||||
unsigned short no_cyl;
|
||||
unsigned short trk_per_cyl;
|
||||
unsigned char sec_per_trk;
|
||||
unsigned char byte_per_track[3];
|
||||
unsigned short home_bytes;
|
||||
unsigned char formula;
|
||||
union {
|
||||
struct {
|
||||
unsigned char f1;
|
||||
unsigned short f2;
|
||||
unsigned short f3;
|
||||
} __attribute__ ((packed)) f_0x01;
|
||||
struct {
|
||||
unsigned char f1;
|
||||
unsigned char f2;
|
||||
unsigned char f3;
|
||||
unsigned char f4;
|
||||
unsigned char f5;
|
||||
} __attribute__ ((packed)) f_0x02;
|
||||
} __attribute__ ((packed)) factors;
|
||||
unsigned short first_alt_trk;
|
||||
unsigned short no_alt_trk;
|
||||
unsigned short first_dia_trk;
|
||||
unsigned short no_dia_trk;
|
||||
unsigned short first_sup_trk;
|
||||
unsigned short no_sup_trk;
|
||||
unsigned char MDR_ID;
|
||||
unsigned char OBR_ID;
|
||||
unsigned char director;
|
||||
unsigned char rd_trk_set;
|
||||
unsigned short max_rec_zero;
|
||||
unsigned char reserved1;
|
||||
unsigned char RWANY_in_LR;
|
||||
unsigned char factor6;
|
||||
unsigned char factor7;
|
||||
unsigned char factor8;
|
||||
unsigned char reserved2[3];
|
||||
unsigned char reserved3[6];
|
||||
unsigned int long_no_cyl;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/*
|
||||
* Represents possible format modes that can be specified when formatting
|
||||
* a DASD.
|
||||
*/
|
||||
typedef enum format_mode_t {
|
||||
FULL, /* default mode */
|
||||
QUICK, /* format only the first 2 tracks */
|
||||
EXPAND, /* search for unformatted area and format only that part*/
|
||||
} format_mode_t;
|
||||
|
||||
static const char mode_str[3][10] = {
|
||||
"Full", "Quick", "Expand"
|
||||
};
|
||||
|
||||
/*
|
||||
* struct format_data_t
|
||||
* represents all data necessary to format a dasd
|
||||
*/
|
||||
typedef struct format_data_t {
|
||||
unsigned int start_unit; /* from track */
|
||||
unsigned int stop_unit; /* to track */
|
||||
unsigned int blksize; /* sectorsize */
|
||||
unsigned int intensity;
|
||||
} format_data_t;
|
||||
|
||||
/*
|
||||
* values to be used for format_data_t.intensity
|
||||
* 0/8: normal format
|
||||
* 1/9: also write record zero
|
||||
* 3/11: also write home address
|
||||
* 4/12: invalidate track
|
||||
*/
|
||||
#define DASD_FMT_INT_FMT_R0 1 /* write record zero */
|
||||
#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
|
||||
#define DASD_FMT_INT_INVAL 4 /* invalidate tracks */
|
||||
#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
|
||||
#define DASD_FMT_INT_FMT_NOR0 16 /* remove permission to write record zero */
|
||||
|
||||
/*
|
||||
* struct format_check_t
|
||||
* represents all data necessary to evaluate the format of
|
||||
* different tracks of a dasd
|
||||
*/
|
||||
typedef struct format_check_t {
|
||||
/* Input */
|
||||
struct format_data_t expect;
|
||||
|
||||
/* Output */
|
||||
unsigned int result; /* Error indication (DASD_FMT_ERR_*) */
|
||||
unsigned int unit; /* Track that is in error */
|
||||
unsigned int rec; /* Record that is in error */
|
||||
unsigned int num_records; /* Records in the track in error */
|
||||
unsigned int blksize; /* Block-size of first record in error */
|
||||
unsigned int key_length; /* Key length of first record in error */
|
||||
} format_check_t;
|
||||
|
||||
/*
|
||||
* values to be used in format_check_t for indicating
|
||||
* possible format errors
|
||||
*/
|
||||
#define DASD_FMT_ERR_TOO_FEW_RECORDS 1
|
||||
#define DASD_FMT_ERR_TOO_MANY_RECORDS 2
|
||||
#define DASD_FMT_ERR_BLKSIZE 3
|
||||
#define DASD_FMT_ERR_RECORD_ID 4
|
||||
#define DASD_FMT_ERR_KEY_LENGTH 5
|
||||
|
||||
/*
|
||||
* values to be used for dasd_information2_t.format
|
||||
* 0x00: NOT formatted
|
||||
* 0x01: Linux disc layout
|
||||
* 0x02: Common disc layout
|
||||
*/
|
||||
#define DASD_FORMAT_NONE 0
|
||||
#define DASD_FORMAT_LDL 1
|
||||
#define DASD_FORMAT_CDL 2
|
||||
|
||||
/* Disable the volume (for Linux) */
|
||||
#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0)
|
||||
/* Enable the volume (for Linux) */
|
||||
#define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1)
|
||||
|
||||
/* Get information on a dasd device (enhanced) */
|
||||
#define BIODASDINFO2 _IOR(DASD_IOCTL_LETTER, 3, dasd_information2_t)
|
||||
|
||||
/* #define BIODASDFORMAT _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
|
||||
#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t)
|
||||
|
||||
/* Check device format according to format_data_t */
|
||||
#define BIODASDCHECKFMT _IOWR(DASD_IOCTL_LETTER, 2, format_check_t)
|
||||
|
||||
/****************************************************************************
|
||||
* SECTION: Further IOCTL Definitions (see fs.h and hdreq.h ) *
|
||||
****************************************************************************/
|
||||
/* re-read partition table */
|
||||
#define BLKRRPART _IO(0x12,95)
|
||||
/* get block device sector size */
|
||||
#define BLKSSZGET _IO(0x12,104)
|
||||
/* get read-only status (0 = read_write) */
|
||||
#define BLKROGET _IO(0x12,94)
|
||||
|
||||
/* get device geometry */
|
||||
#define HDIO_GETGEO 0x0301
|
||||
|
||||
/****************************************************************************
|
||||
* SECTION: DASDFMT internal types *
|
||||
****************************************************************************/
|
||||
|
||||
#define DASD_PARTN_BITS 2
|
||||
#define PARTN_MASK ((1 << DASD_PARTN_BITS) - 1)
|
||||
|
||||
#define EXIT_MISUSE 1
|
||||
#define EXIT_BUSY 2
|
||||
#define LABEL_LENGTH 14
|
||||
#define VLABEL_CHARS 84
|
||||
#define LINE_LENGTH 80
|
||||
#define ERR_LENGTH 90
|
||||
|
||||
#define DEFAULT_BLOCKSIZE 4096
|
||||
/* requestsize - number of cylinders in one format step */
|
||||
#define DEFAULT_REQUESTSIZE 10
|
||||
#define USABLE_PARTITIONS ((1 << DASD_PARTN_BITS) - 1)
|
||||
|
||||
#define ERRMSG(x...) {fflush(stdout);fprintf(stderr,x);}
|
||||
#define ERRMSG_EXIT(ec,x...) {fflush(stdout);fprintf(stderr,x);exit(ec);}
|
||||
|
||||
#define CHECK_SPEC_MAX_ONCE(i,str) \
|
||||
{if (i>1) ERRMSG_EXIT(EXIT_MISUSE,"%s: " str " " \
|
||||
"can only be specified once\n",prog_name);}
|
||||
|
||||
#define PARSE_PARAM_INTO(x,param,base,str) \
|
||||
{char *endptr=NULL; x=(int)strtol(param,&endptr,base); \
|
||||
if (*endptr) ERRMSG_EXIT(EXIT_MISUSE,"%s: " str " " \
|
||||
"is in invalid format\n",prog_name);}
|
||||
|
||||
typedef struct bootstrap1 {
|
||||
u_int32_t key;
|
||||
u_int32_t data[6];
|
||||
} __attribute__ ((packed)) bootstrap1_t;
|
||||
|
||||
typedef struct bootstrap2 {
|
||||
u_int32_t key;
|
||||
u_int32_t data[36];
|
||||
} __attribute__ ((packed)) bootstrap2_t;
|
||||
|
||||
typedef struct dasdfmt_info {
|
||||
dasd_information2_t dasd_info;
|
||||
char devname[PATH_MAX];
|
||||
int verbosity;
|
||||
int testmode;
|
||||
int withoutprompt;
|
||||
int print_progressbar;
|
||||
int print_hashmarks, hashstep;
|
||||
int print_percentage;
|
||||
int force;
|
||||
int writenolabel;
|
||||
int labelspec;
|
||||
int cdl_format;
|
||||
int blksize_specified;
|
||||
int reqsize_specified;
|
||||
int device_id;
|
||||
int keep_volser;
|
||||
int force_host;
|
||||
int layout_specified;
|
||||
int check;
|
||||
} dasdfmt_info_t;
|
||||
|
||||
|
||||
/*
|
||||
C9D7D3F1 000A0000 0000000F 03000000 00000001 00000000 00000000
|
||||
*/
|
||||
static bootstrap1_t ipl1 = {
|
||||
0xC9D7D3F1, {
|
||||
0x000A0000, 0x0000000F, 0x03000000,
|
||||
0x00000001, 0x00000000, 0x00000000
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
C9D7D3F2 07003AB8 40000006 31003ABE 40000005 08003AA0 00000000 06000000
|
||||
20000000 00000000 00000000 00000400 00000000 00000000 00000000 00000000
|
||||
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
|
||||
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
|
||||
00000000 00000000 00000000 00000000 00000000
|
||||
*/
|
||||
static bootstrap2_t ipl2 = {
|
||||
0xC9D7D3F2, {
|
||||
0x07003AB8, 0x40000006, 0x31003ABE,
|
||||
0x40000005, 0x08003AA0, 0x00000000,
|
||||
0x06000000, 0x20000000, 0x00000000,
|
||||
0x00000000, 0x00000400, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000000, 0x00000000, 0x00000000
|
||||
}
|
||||
};
|
||||
|
||||
#endif /* DASDFMT_H */
|
||||
|
||||
Reference in New Issue
Block a user