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authorMattias Andrée <maandree@kth.se>2024-09-21 08:57:08 +0200
committerMattias Andrée <maandree@kth.se>2024-09-21 08:57:08 +0200
commit0ac99ad7100334933a993413333521087e29297b (patch)
treecdcb989d9a079327f605752caa6134ece4fadfee /README
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Update documentation and adjust blocksize if larger than the device size
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'README')
-rw-r--r--README11
1 files changed, 10 insertions, 1 deletions
diff --git a/README b/README
index 010786f..54ace7b 100644
--- a/README
+++ b/README
@@ -2,7 +2,8 @@ NAME
deadshred - override the contents of a device that may be broken
SYNOPSIS
- deadshred [-o offset] [-l length | -e postend] device [< random-source]
+ deadshred [-b blocksize] [-o offset] [-l length | -e postend]
+ [-r] device [< random-source]
DESCRIPTION
The deadshred utility fills a file or block devices with
@@ -14,6 +15,10 @@ DESCRIPTION
OPTIONS
The following options are supported:
+ -b blocksize
+ Selects the initial block-size for writing on the
+ first pass over the device.
+
-e postend
Position in the device to stop writing at. The byte
indexed by the value postend will not be overwritten.
@@ -27,6 +32,10 @@ OPTIONS
-o offset
The index of the first byte in the device to overwrite.
+ -r
+ Start writing from the end instead of from the
+ beginning on the first pass over the device.
+
OPERANDS
The following operand is supported: