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qemu-patch-raspberry4/tests/qemu-iotests/153.out
Eric Blake b66ff2c298 iotests: Specify explicit backing format where sensible 
There are many existing qcow2 images that specify a backing file but
no format.  This has been the source of CVEs in the past, but has
become more prominent of a problem now that libvirt has switched to
-blockdev.  With older -drive, at least the probing was always done by
qemu (so the only risk of a changed format between successive boots of
a guest was if qemu was upgraded and probed differently).  But with
newer -blockdev, libvirt must specify a format; if libvirt guesses raw
where the image was formatted, this results in data corruption visible
to the guest; conversely, if libvirt guesses qcow2 where qemu was
using raw, this can result in potential security holes, so modern
libvirt instead refuses to use images without explicit backing format.

The change in libvirt to reject images without explicit backing format
has pointed out that a number of tools have been far too reliant on
probing in the past.  It's time to set a better example in our own
iotests of properly setting this parameter.

iotest calls to create, rebase, and convert are all impacted to some
degree.  It's a bit annoying that we are inconsistent on command line
- while all of those accept -o backing_file=...,backing_fmt=..., the
shortcuts are different: create and rebase have -b and -F, while
convert has -B but no -F.  (amend has no shortcuts, but the previous
patch just deprecated the use of amend to change backing chains).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-9-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-14 15:18:59 +02:00

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QA output created by 153
== readonly=off,force-share=on should be rejected ==
QEMU_PROG: -drive if=none,file=null-co://,readonly=off,force-share=on: force-share=on can only be used with read-only images
== Creating base image ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=33554432
== Creating test image ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
== Launching QEMU, opts: '' ==
== Launching another QEMU, opts: '' ==
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=none,: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Launching another QEMU, opts: 'read-only=on' ==
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=none,read-only=on: Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Launching another QEMU, opts: 'read-only=on,force-share=on' ==
== Running utility commands ==
_qemu_io_wrapper -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_io_wrapper -r -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_io_wrapper -c open TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
no file open, try 'help open'
_qemu_io_wrapper -c open -r TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
no file open, try 'help open'
_qemu_img_wrapper info TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper check TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper compare TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper map TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper commit TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper resize TEST_DIR/t.qcow2 32M
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper rebase TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper snapshot -l TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper convert TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper dd if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper bench -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper bench -w -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper create -f qcow2 TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
file format: IMGFMT
backing file format: IMGFMT
== Running utility commands -U ==
_qemu_io_wrapper -U -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
_qemu_io_wrapper -U -r -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -c open -U TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
no file open, try 'help open'
_qemu_io_wrapper -c open -r -U TEST_DIR/t.qcow2 -c read 0 512
_qemu_img_wrapper info -U TEST_DIR/t.qcow2
_qemu_img_wrapper check -U TEST_DIR/t.qcow2
_qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
_qemu_img_wrapper map -U TEST_DIR/t.qcow2
_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper commit -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper snapshot -l -U TEST_DIR/t.qcow2
_qemu_img_wrapper convert -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
_qemu_img_wrapper dd -U if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
_qemu_img_wrapper bench -U -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper bench -U -w -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': force-share=on can only be used with read-only images
{ 'execute': 'quit' }
Round done
== Creating base image ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=33554432
== Creating test image ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
== Launching QEMU, opts: 'read-only=on' ==
== Launching another QEMU, opts: '' ==
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=none,: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Launching another QEMU, opts: 'read-only=on' ==
== Launching another QEMU, opts: 'read-only=on,force-share=on' ==
== Running utility commands ==
_qemu_io_wrapper -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_io_wrapper -r -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -c open TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
no file open, try 'help open'
_qemu_io_wrapper -c open -r TEST_DIR/t.qcow2 -c read 0 512
_qemu_img_wrapper info TEST_DIR/t.qcow2
_qemu_img_wrapper check TEST_DIR/t.qcow2
_qemu_img_wrapper compare TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
_qemu_img_wrapper map TEST_DIR/t.qcow2
_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper commit TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper resize TEST_DIR/t.qcow2 32M
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper rebase TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper snapshot -l TEST_DIR/t.qcow2
_qemu_img_wrapper convert TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
_qemu_img_wrapper dd if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
_qemu_img_wrapper bench -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper bench -w -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper create -f qcow2 TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
file format: IMGFMT
backing file format: IMGFMT
== Running utility commands -U ==
_qemu_io_wrapper -U -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
_qemu_io_wrapper -U -r -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -c open -U TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
no file open, try 'help open'
_qemu_io_wrapper -c open -r -U TEST_DIR/t.qcow2 -c read 0 512
_qemu_img_wrapper info -U TEST_DIR/t.qcow2
_qemu_img_wrapper check -U TEST_DIR/t.qcow2
_qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
_qemu_img_wrapper map -U TEST_DIR/t.qcow2
_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper commit -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
_qemu_img_wrapper snapshot -l -U TEST_DIR/t.qcow2
_qemu_img_wrapper convert -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
_qemu_img_wrapper dd -U if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
_qemu_img_wrapper bench -U -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper bench -U -w -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': force-share=on can only be used with read-only images
{ 'execute': 'quit' }
Round done
== Creating base image ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=33554432
== Creating test image ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
== Launching QEMU, opts: 'read-only=on,force-share=on' ==
== Launching another QEMU, opts: '' ==
== Launching another QEMU, opts: 'read-only=on' ==
== Launching another QEMU, opts: 'read-only=on,force-share=on' ==
== Running utility commands ==
_qemu_io_wrapper -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -r -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -c open TEST_DIR/t.qcow2 -c read 0 512
_qemu_io_wrapper -c open -r TEST_DIR/t.qcow2 -c read 0 512
_qemu_img_wrapper info TEST_DIR/t.qcow2
_qemu_img_wrapper check TEST_DIR/t.qcow2
_qemu_img_wrapper compare TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
_qemu_img_wrapper map TEST_DIR/t.qcow2
_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2
_qemu_img_wrapper commit TEST_DIR/t.qcow2
_qemu_img_wrapper resize TEST_DIR/t.qcow2 32M
_qemu_img_wrapper rebase TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
_qemu_img_wrapper snapshot -l TEST_DIR/t.qcow2
_qemu_img_wrapper convert TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
_qemu_img_wrapper dd if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
_qemu_img_wrapper bench -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper bench -w -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper create -f qcow2 TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
file format: IMGFMT
backing file format: IMGFMT
== Running utility commands -U ==
_qemu_io_wrapper -U -c read 0 512 TEST_DIR/t.qcow2
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
_qemu_io_wrapper -U -r -c read 0 512 TEST_DIR/t.qcow2
_qemu_io_wrapper -c open -U TEST_DIR/t.qcow2 -c read 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: force-share=on can only be used with read-only images
no file open, try 'help open'
_qemu_io_wrapper -c open -r -U TEST_DIR/t.qcow2 -c read 0 512
_qemu_img_wrapper info -U TEST_DIR/t.qcow2
_qemu_img_wrapper check -U TEST_DIR/t.qcow2
_qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2
_qemu_img_wrapper map -U TEST_DIR/t.qcow2
_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper commit -U TEST_DIR/t.qcow2
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
qemu-img: unrecognized option '-U'
Try 'qemu-img --help' for more information
_qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
_qemu_img_wrapper snapshot -l -U TEST_DIR/t.qcow2
_qemu_img_wrapper convert -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2.convert
_qemu_img_wrapper dd -U if=TEST_DIR/t.qcow2 of=TEST_DIR/t.qcow2.convert bs=512 count=1
_qemu_img_wrapper bench -U -c 1 TEST_DIR/t.qcow2
_qemu_img_wrapper bench -U -w -c 1 TEST_DIR/t.qcow2
qemu-img: Could not open 'TEST_DIR/t.qcow2': force-share=on can only be used with read-only images
{ 'execute': 'quit' }
Round done
== Two devices with the same image (read-only=off - read-only=off) ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,read-only=off: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Two devices with the same image (read-only=off - read-only=on) ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,read-only=on: Failed to get shared "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Two devices with the same image (read-only=off - read-only=on,force-share=on) ==
== Two devices with the same image (read-only=on - read-only=off) ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,read-only=off: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Two devices with the same image (read-only=on - read-only=on) ==
== Two devices with the same image (read-only=on - read-only=on,force-share=on) ==
== Two devices with the same image (read-only=on,force-share=on - read-only=off) ==
== Two devices with the same image (read-only=on,force-share=on - read-only=on) ==
== Two devices with the same image (read-only=on,force-share=on - read-only=on,force-share=on) ==
== Creating TEST_DIR/t.qcow2.[abc] ==
Formatting 'TEST_DIR/t.IMGFMT.a', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
Formatting 'TEST_DIR/t.IMGFMT.b', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
Formatting 'TEST_DIR/t.IMGFMT.c', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.b backing_fmt=IMGFMT
== Two devices sharing the same file in backing chain ==
== Backing image also as an active device ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Backing image also as an active device (ro) ==
== Symbolic link ==
QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
== Active commit to intermediate layer should work when base in use ==
{ 'execute': 'qmp_capabilities' }
{"return": {}}
_qemu_img_wrapper commit -b TEST_DIR/t.qcow2.b TEST_DIR/t.qcow2.c
{ 'execute': 'qmp_capabilities' }
{"return": {}}
Adding drive
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT' } }
{"return": "OKrn"}
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
Creating overlay with qemu-img when the guest is running should be allowed
_qemu_img_wrapper create -f qcow2 -b TEST_DIR/t.qcow2 -F qcow2 TEST_DIR/t.qcow2.overlay
== Closing an image should unlock it ==
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d0' } }
{"return": ""}
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
Adding two and closing one
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=TEST_DIR/t.IMGFMT,readonly=on' } }
{"return": "OKrn"}
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_add 0 if=none,id=d1,file=TEST_DIR/t.IMGFMT,readonly=on' } }
{"return": "OKrn"}
_qemu_img_wrapper info TEST_DIR/t.qcow2
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d0' } }
{"return": ""}
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
qemu-io: can't open device TEST_DIR/t.qcow2: Failed to get "write" lock
Is another process using the image [TEST_DIR/t.qcow2]?
Closing the other
{ 'execute': 'human-monitor-command', 'arguments': { 'command-line': 'drive_del d1' } }
{"return": ""}
_qemu_io_wrapper TEST_DIR/t.qcow2 -c write 0 512
== Detecting -U and force-share conflicts ==
No conflict:
image: null-co://
file format: null-co
virtual size: 1 GiB (1073741824 bytes)
disk size: unavailable
Conflict:
qemu-img: --force-share/-U conflicts with image options
No conflict:
Conflict:
qemu-io: -U conflicts with image options
*** done
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