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Signed-off-by: Kashyap Chamarthy <kashyap.cv@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch allows an empty filename to be passed as the new base image name
for qemu-img rebase to mean base the image on no backing file (i.e.
independent of any backing file). According to Eric Blake, qemu-img rebase
already supports this when '-u' is used; this adds support when -u is not
used.
Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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* kwolf/for-anthony:
block: Don't forget to delete temporary file
Don't require encryption password for 'qemu-img info' command
qemu-img: Add json output option to the info command.
qapi: Add SnapshotInfo and ImageInfo.
ahci: properly reset PxCMD on HBA reset
block: fix block tray status
vdi: Fix warning from clang
block/curl: Fix wrong free statement
ide: Fix error messages from static code analysis (no real error)
ATAPI: STARTSTOPUNIT only eject/load media if powercondition is 0
sheepdog: fix savevm and loadvm
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These wrong spellings were detected by codespell:
* successully -> successfully
* alot -> a lot
* wanna -> want to
* infomation -> information
* occured -> occurred
["also is" -> "is also" and "ressources" -> "resources" suggested by
Peter Maydell <peter.maydell@linaro.org>]
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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This option --output=[human|json] make qemu-img info output on
human or JSON representation at the choice of the user.
example:
{
"snapshots": [
{
"vm-clock-nsec": 637102488,
"name": "vm-20120821145509",
"date-sec": 1345553709,
"date-nsec": 220289000,
"vm-clock-sec": 20,
"id": "1",
"vm-state-size": 96522745
},
{
"vm-clock-nsec": 28210866,
"name": "vm-20120821154059",
"date-sec": 1345556459,
"date-nsec": 171392000,
"vm-clock-sec": 46,
"id": "2",
"vm-state-size": 101208714
}
],
"virtual-size": 1073741824,
"filename": "snap.qcow2",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 985587712,
"dirty-flag": false
}
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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People have repeatedly expected that you can do things like snapshotting
an image with qemu-img while a qemu instance is running. Maybe we need
to consider locking the files while they are in use, but having a
warning in the qemu-img manpage is doable for 1.2 and can't hurt anyway.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The qemu-img.1 man page is missing the qed format from its list of
supported formats. Document the image creation options for qed.
Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The QED block driver already provides the functionality to not only
detect inconsistencies in images, but also fix them. However, this
functionality cannot be manually invoked with qemu-img, but the
check happens only automatically during bdrv_open().
This adds a -r switch to qemu-img check that allows manual invocation
of an image repair.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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operation.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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By default, require 4k of consecutive zero bytes for qemu-img to make the
output file sparse by not issuing a write request for the zeroed parts. Add an
-S option to allow users to tune this setting.
This helps to avoid situations where a lot of zero sectors and data sectors are
mixed and qemu-img tended to issue many tiny 512 byte writes.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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People shouldn't explicitly specify host_device any more. raw is doing the
Right Thing.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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In order to backup snapshots, created from QCOW2 iamge, we want to copy snapshots out of QCOW2 disk to a seperate storage.
The following patch adds a new option in "qemu-img": qemu-img convert -f qcow2 -O qcow2 -s snapshot_name src_img bck_img.
Right now, it only supports to copy the full snapshot, delta snapshot is on the way.
Changes from V1: all the comments from Kevin are addressed:
Add read-only checking
Fix coding style
Change the name from bdrv_snapshot_load to bdrv_snapshot_load_tmp
Signed-off-by: Disheng Su <edison@cloud.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch adds a 'resize' command to grow/shrink disk images. This
allows changing the size of disk images without copying to a new image
file. Currently only raw files support resize.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Explain the existing format specific options that can be used with qemu-img
create/convert -o ...
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The old options are still supported for compatibility, but they are
inconsistent (for example create -b vs. convert -B for backing files) and
incomplete (-F only exists for create) which tends to confuse people. Remove
all references to the old options from the documentation to guide users to the
more consistent -o options.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The description of the image formats is too long to be a subitem of a parameter
description. It will become even longer when we include the options provided by
the respective format.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Converting files using "qemu-img convert" onto logical volumes (or any
block device) you need to use the currently undocumented "host_device"
format. This patch adds the required documentation to the manpage.
Reported-by: Adrian Bridgett <adrian@bitcube.co.uk>
Signed-off-by: Adrian Bridgett <adrian@bitcube.co.uk>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is a new block driver written from scratch
to support the VDI format in QEMU.
VDI is the native format used by Innotek / SUN VirtualBox.
Latest changes:
* stripped down version
(code for synchronous operations and experimental code removed)
* don't open VDI snapshot images (with uuid_link or uuid_parent)
* modified vdi_aio_cancel
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Use hxtool to generate the 'command syntax' section of qemu-img's help
message, and the corresponding section of the texinfo documentation.
This has the side-effect of adding 'check' to this list of commands in
the texinfo documentation.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com>
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Update the documentation to reflect the introduction of format specific options
with -o. Don't advertise -e or -6 any more, they exist only for compatibility
reasons and can be replaced by the corresponding -o options.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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If the user specifies the backing file format,
then when opening the backing file, there is no need
to probe the (backing file) image to figure out its format.
This follows my previous patches implementing bdrv_create2
which keeps (for qcow2 only) the backing file format
as a qcow2-extension
Suggested by Daniel P. Berrange.
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6910 c046a42c-6fe2-441c-8c8c-71466251a162
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Rearrange code, help printout and docs so that they are in the same
(hopefully more logical) order for easier maintenance.
Add help and docs for undocumented options.
Reformat slightly for more consistent help output.
Add comments to encourage better synchronization in the future.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6432 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4672 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4671 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3175 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2928 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2100 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1518 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1151 c046a42c-6fe2-441c-8c8c-71466251a162
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