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| author | Fam Zheng <famz@redhat.com> | 2017-09-08 17:44:57 +0800 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-09-26 14:46:23 +0200 |
| commit | 97ec9117c346239fc5b0f6d1973111e8ca370087 (patch) | |
| tree | f07754e7dfde0bda52d770b7e5f214ab163fb169 /docs/qemu-block-drivers.texi | |
| parent | a16efd53406bc8d89f87253ab10290f8d1b145a7 (diff) | |
file-posix: Clear out first sector in hdev_create
People get surprised when, after "qemu-img create -f raw /dev/sdX", they
still see qcow2 with "qemu-img info", if previously the bdev had a qcow2
header. While this is natural because raw doesn't need to write any
magic bytes during creation, hdev_create is free to clear out the first
sector to make sure the stale qcow2 header doesn't cause such confusion.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'docs/qemu-block-drivers.texi')
0 files changed, 0 insertions, 0 deletions