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From 67cdc9c732090a47f7f0345d43614c8b4a527f53 Mon Sep 17 00:00:00 2001
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From: Hu Tao <hutao@cn.fujitsu.com>
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Date: Mon, 8 Dec 2014 11:20:54 +0800
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Subject: [PATCH] resize: fix 'No space left on device' problem when copying to
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an extended partition (RHBZ#1169015)
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Because of the size of an extended partition reported by Linux is always 1024
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bytes, so it will always fail to copy to an extended partition.
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This patch fixes this problem by copying to the offset of an extended
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partition in the destination disk.
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Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
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(cherry picked from commit 9d6f0b6a86d68438b27a3d783677c63f39ec6627)
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---
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resize/resize.ml | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/resize/resize.ml b/resize/resize.ml
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index b581b39..b4e8990 100644
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--- a/resize/resize.ml
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+++ b/resize/resize.ml
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@@ -1152,9 +1152,15 @@ read the man page virt-resize(1).
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* source = "/dev/sda2", because the device name only covers
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* the first 1K of the partition. Instead, copy the
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* source bytes from the parent disk (/dev/sda).
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+ *
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+ * You can't write directly to the extended partition,
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+ * because the size of it reported by Linux is always 1024
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+ * bytes. Instead, write to the offset of the extended
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+ * partition in the destination disk (/dev/sdb).
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*)
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let srcoffset = p.p_part.G.part_start in
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- g#copy_device_to_device ~srcoffset ~size:copysize "/dev/sda" target
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+ let destoffset = p.p_target_start *^ 512L in
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+ g#copy_device_to_device ~srcoffset ~destoffset ~size:copysize "/dev/sda" "/dev/sdb"
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)
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| OpIgnore | OpDelete -> ()
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in
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--
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1.8.3.1
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