mirror of https://github.com/vitalif/e2fsprogs
78 lines
1.7 KiB
Groff
78 lines
1.7 KiB
Groff
.\" -*- nroff -*-
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.TH BADBLOCKS 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
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.SH NAME
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badblocks \- search a device for bad blocks
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.SH SYNOPSIS
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.B badblocks
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[
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.B \-b
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block-size
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]
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[
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.B \-o
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output_file
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]
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[
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.B \-s
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]
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[
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.B \-v
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]
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[
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.B \-w
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]
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device
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blocks-count [ start-block ]
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.SH DESCRIPTION
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.B badblocks
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is used to search for bad blocks on a device (usually a disk partition).
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.br
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.I device
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is the special file corresponding to the device (e.g /dev/hdXX).
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.br
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.I blocks-count
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is the number of blocks on the device.
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.SH OPTIONS
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.TP
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.I -b block-size
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Specify the size of blocks in bytes.
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.TP
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.I -o output_file
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Write the list of bad blocks to the specified file. Without this option,
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.B badblocks
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displays the list on its standard output. The format of this file is suitable
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for use by the -l option in
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.BR e2fsck (8)
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or
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.BR mke2fs (8).
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.TP
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.I -s
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Show the progress of the scan by writing out the block numbers as they
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are checked.
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.TP
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.I -v
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Verbose mode.
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.TP
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.I -w
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Use write-mode test. With this option,
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.B badblocks
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scans for bad blocks by writing some patterns (0xaa, 0x55, 0xff, 0x00) on
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every block of the device, reading every block and comparing the contents.
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.SH WARNING
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Never use the `-w' option on an device containing an existing file system.
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This option erases data!
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.SH AUTHOR
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.B badblocks
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was written by Remy Card <card@masi.ibp.fr>, the developer and maintainer
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of the ext2 fs.
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.SH BUGS
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I had no chance to make real tests of this program since I use IDE drives,
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which remap bad blocks. I only made some tests on floppies.
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.SH AVAILABILITY
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.B badblocks
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is part of the e2fsprogs package and is available for anonymous
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ftp from tsx-11.mit.edu in /pub/linux/packages/ext2fs.
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.SH SEE ALSO
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.BR e2fsck (8),
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.BR mke2fs (8)
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