From f8a4a0d4f2fd569252029bd004e24ee433b43fe8 Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Fri, 13 Jan 2017 13:30:22 +0100
Subject: partx: add --sector-size option

/dev/sdc is 4K disk:

 # fdisk -l /dev/sdc
 Disk /dev/sdc: 100 MiB, 104857600 bytes, 25600 sectors
 ...
 Device     Boot Start   End Sectors Size Id Type
 /dev/sdc1        1024 25599   24576  96M 83 Linux

let's use it as disk image:

 # dd if=/dev/sdc of=~/sdc.img
 # losetup -f ~/sdc.img

old version:

 # partx --show /dev/loop0
 NR START   END SECTORS SIZE NAME UUID
 1  1024 25599   24576  12M      6a4ba75b-01

new version:

 # partx --show /dev/loop0 --sector-size 4096
 NR START    END SECTORS SIZE NAME UUID
  1  8192 204799  196608  96M      6a4ba75b-01

Addresses: https://github.com/karelzak/util-linux/issues/396
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 disk-utils/partx.8 | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'disk-utils/partx.8')

diff --git a/disk-utils/partx.8 b/disk-utils/partx.8
index 7ff9b27f3..0d47f1c54 100644
--- a/disk-utils/partx.8
+++ b/disk-utils/partx.8
@@ -136,6 +136,9 @@ or
 .BR \-u , " \-\-update"
 Update the specified partitions.
 .TP
+.BR \-S , " \-\-sector\-size " \fIsize
+Overwrite default sector size.
+.TP
 .BR \-v , " \-\-verbose"
 Verbose mode.
 .TP
-- 
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