From 4b3acf7f8a66928bd1aa3cf10879d925cdeadbb9 Mon Sep 17 00:00:00 2001

From: Kevin Wolf <kwolf@redhat.com>

Date: Tue, 26 Jun 2018 09:48:50 +0200

Subject: [PATCH 81/89] qemu-iotests: Rewrite 212 for blockdev-create job

RH-Author: Kevin Wolf <kwolf@redhat.com>

Message-id: <20180626094856.6924-68-kwolf@redhat.com>

Patchwork-id: 81100

O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH v2 67/73] qemu-iotests: Rewrite 212 for blockdev-create job

Bugzilla: 1513543

RH-Acked-by: Jeffrey Cody <jcody@redhat.com>

RH-Acked-by: Max Reitz <mreitz@redhat.com>

RH-Acked-by: Fam Zheng <famz@redhat.com>

This rewrites the test case 212 to work with the new x-blockdev-create

job rather than the old synchronous version of the command.

All of the test cases stay the same as before, but in order to be able

to implement proper job handling, the test case is rewritten in Python.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

Reviewed-by: Max Reitz <mreitz@redhat.com>

(cherry picked from commit 2d7abfbeb75fbe624a8b3a2ff253dbf5674ccb65)

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>

---

 tests/qemu-iotests/212     | 483 +++++++++++++++++----------------------------

 tests/qemu-iotests/212.out | 191 +++++++++++-------

 tests/qemu-iotests/group   |   2 +-

 3 files changed, 295 insertions(+), 381 deletions(-)

diff --git a/tests/qemu-iotests/212 b/tests/qemu-iotests/212

index e5a1ba7..03cf41d 100755

--- a/tests/qemu-iotests/212

+++ b/tests/qemu-iotests/212

@@ -1,9 +1,11 @@

-#!/bin/bash

+#!/usr/bin/env python

 #

 # Test parallels and file image creation

 #

 # Copyright (C) 2018 Red Hat, Inc.

 #

+# Creator/Owner: Kevin Wolf <kwolf@redhat.com>

+#

 # This program is free software; you can redistribute it and/or modify

 # it under the terms of the GNU General Public License as published by

 # the Free Software Foundation; either version 2 of the License, or

@@ -18,309 +20,176 @@

 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

 #

-# creator

-owner=kwolf@redhat.com

-

-seq=`basename $0`

-echo "QA output created by $seq"

-

-here=`pwd`

-status=1	# failure is the default!

-

-# get standard environment, filters and checks

-. ./common.rc

-. ./common.filter

-

-_supported_fmt parallels

-_supported_proto file

-_supported_os Linux

-

-function do_run_qemu()

-{

-    echo Testing: "$@"

-    $QEMU -nographic -qmp stdio -serial none "$@"

-    echo

-}

-

-function run_qemu()

-{

-    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \

-                          | _filter_qemu | _filter_imgfmt \

-                          | _filter_actual_image_size

-}

-

-echo

-echo "=== Successful image creation (defaults) ==="

-echo

-

-size=$((128 * 1024 * 1024))

-

-run_qemu <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "file",

-      "filename": "$TEST_IMG",

-      "size": 0

-  }

-}

-{ "execute": "blockdev-add",

-  "arguments": {

-      "driver": "file",

-      "node-name": "imgfile",

-      "filename": "$TEST_IMG"

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "imgfile",

-      "size": $size

-  }

-}

-{ "execute": "quit" }

-EOF

-

-_img_info --format-specific | _filter_img_info --format-specific

-

-echo

-echo "=== Successful image creation (explicit defaults) ==="

-echo

-

-# Choose a different size to show that we got a new image

-size=$((64 * 1024 * 1024))

-

-run_qemu <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "file",

-      "filename": "$TEST_IMG",

-      "size": 0

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": {

-          "driver": "file",

-          "filename": "$TEST_IMG"

-      },

-      "size": $size,

-      "cluster-size": 1048576

-  }

-}

-{ "execute": "quit" }

-EOF

-

-_img_info --format-specific | _filter_img_info --format-specific

-

-echo

-echo "=== Successful image creation (with non-default options) ==="

-echo

-

-# Choose a different size to show that we got a new image

-size=$((32 * 1024 * 1024))

-

-run_qemu <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "file",

-      "filename": "$TEST_IMG",

-      "size": 0

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": {

-          "driver": "file",

-          "filename": "$TEST_IMG"

-      },

-      "size": $size,

-      "cluster-size": 65536

-  }

-}

-{ "execute": "quit" }

-EOF

-

-_img_info --format-specific | _filter_img_info --format-specific

-

-echo

-echo "=== Invalid BlockdevRef ==="

-echo

-

-run_qemu <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "this doesn't exist",

-      "size": $size

-  }

-}

-{ "execute": "quit" }

-EOF

-

-echo

-echo "=== Zero size ==="

-echo

-

-run_qemu -blockdev driver=file,filename="$TEST_IMG",node-name=node0 <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 0

-  }

-}

-{ "execute": "quit" }

-EOF

-

-_img_info | _filter_img_info

-

-echo

-echo "=== Maximum size ==="

-echo

-

-run_qemu -blockdev driver=file,filename="$TEST_IMG",node-name=node0 <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 4503599627369984

-  }

-}

-{ "execute": "quit" }

-EOF

-

-_img_info | _filter_img_info

-

-echo

-echo "=== Invalid sizes ==="

-echo

-

-# TODO Negative image sizes aren't handled correctly, but this is a problem

-# with QAPI's implementation of the 'size' type and affects other commands as

-# well. Once this is fixed, we may want to add a test case here.

-

-# 1. Misaligned image size

-# 2. 2^64 - 512

-# 3. 2^63 = 8 EB (qemu-img enforces image sizes less than this)

-# 4. 2^63 - 512 (generally valid, but with the image header the file will

-#                exceed 63 bits)

-# 5. 2^52 (512 bytes more than maximum image size)

-

-run_qemu -blockdev driver=file,filename="$TEST_IMG",node-name=node0 <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 1234

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 18446744073709551104

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 9223372036854775808

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 9223372036854775296

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 4503599627370497

-  }

-}

-{ "execute": "quit" }

-EOF

-

-echo

-echo "=== Invalid cluster size ==="

-echo

-

-run_qemu -blockdev driver=file,filename="$TEST_IMG",node-name=node0 <

-{ "execute": "qmp_capabilities" }

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 1234

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 128

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 4294967296

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 9223372036854775808

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 18446744073709551104

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 67108864,

-      "cluster-size": 0

-  }

-}

-{ "execute": "x-blockdev-create",

-  "arguments": {

-      "driver": "$IMGFMT",

-      "file": "node0",

-      "size": 281474976710656,

-      "cluster-size": 512

-  }

-}

-{ "execute": "quit" }

-EOF

-

-

-# success, all done

-echo "*** done"

-rm -f $seq.full

-status=0

+import iotests

+from iotests import imgfmt

+

+iotests.verify_image_format(supported_fmts=['parallels'])

+iotests.verify_protocol(supported=['file'])

+

+def blockdev_create(vm, options):

+    result = vm.qmp_log('x-blockdev-create', job_id='job0', options=options)

+

+    if 'return' in result:

+        assert result['return'] == {}

+        vm.run_job('job0')

+    iotests.log("")

+

+with iotests.FilePath('t.parallels') as disk_path, \

+     iotests.VM() as vm:

+

+    #

+    # Successful image creation (defaults)

+    #

+    iotests.log("=== Successful image creation (defaults) ===")

+    iotests.log("")

+

+    size = 128 * 1024 * 1024

+

+    vm.launch()

+    blockdev_create(vm, { 'driver': 'file',

+                          'filename': disk_path,

+                          'size': 0 })

+

+    vm.qmp_log('blockdev-add', driver='file', filename=disk_path,

+               node_name='imgfile')

+

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': 'imgfile',

+                          'size': size })

+    vm.shutdown()

+

+    iotests.img_info_log(disk_path)

+

+    #

+    # Successful image creation (explicit defaults)

+    #

+    iotests.log("=== Successful image creation (explicit defaults) ===")

+    iotests.log("")

+

+    # Choose a different size to show that we got a new image

+    size = 64 * 1024 * 1024

+

+    vm.launch()

+    blockdev_create(vm, { 'driver': 'file',

+                          'filename': disk_path,

+                          'size': 0 })

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': {

+                              'driver': 'file',

+                              'filename': disk_path,

+                          },

+                          'size': size,

+                          'cluster-size': 1048576 })

+    vm.shutdown()

+

+    iotests.img_info_log(disk_path)

+

+    #

+    # Successful image creation (with non-default options)

+    #

+    iotests.log("=== Successful image creation (with non-default options) ===")

+    iotests.log("")

+

+    # Choose a different size to show that we got a new image

+    size = 32 * 1024 * 1024

+

+    vm.launch()

+    blockdev_create(vm, { 'driver': 'file',

+                          'filename': disk_path,

+                          'size': 0 })

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': {

+                              'driver': 'file',

+                              'filename': disk_path,

+                          },

+                          'size': size,

+                          'cluster-size': 65536 })

+    vm.shutdown()

+

+    iotests.img_info_log(disk_path)

+

+    #

+    # Invalid BlockdevRef

+    #

+    iotests.log("=== Invalid BlockdevRef ===")

+    iotests.log("")

+

+    vm.launch()

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': "this doesn't exist",

+                          'size': size })

+    vm.shutdown()

+

+    #

+    # Zero size

+    #

+    iotests.log("=== Zero size ===")

+    iotests.log("")

+

+    vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))

+    vm.launch()

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': 'node0',

+                          'size': 0 })

+    vm.shutdown()

+

+    iotests.img_info_log(disk_path)

+

+    #

+    # Maximum size

+    #

+    iotests.log("=== Maximum size ===")

+    iotests.log("")

+

+    vm.launch()

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': 'node0',

+                          'size': 4503599627369984})

+    vm.shutdown()

+

+    iotests.img_info_log(disk_path)

+

+    #

+    # Invalid sizes

+    #

+

+    # TODO Negative image sizes aren't handled correctly, but this is a problem

+    # with QAPI's implementation of the 'size' type and affects other commands

+    # as well. Once this is fixed, we may want to add a test case here.

+

+    # 1. Misaligned image size

+    # 2. 2^64 - 512

+    # 3. 2^63 = 8 EB (qemu-img enforces image sizes less than this)

+    # 4. 2^63 - 512 (generally valid, but with the image header the file will

+    #                exceed 63 bits)

+    # 5. 2^52 (512 bytes more than maximum image size)

+

+    iotests.log("=== Invalid sizes ===")

+    iotests.log("")

+

+    vm.launch()

+    for size in [ 1234, 18446744073709551104, 9223372036854775808,

+                  9223372036854775296, 4503599627370497 ]:

+        blockdev_create(vm, { 'driver': imgfmt,

+                              'file': 'node0',

+                              'size': size })

+    vm.shutdown()

+

+    #

+    # Invalid cluster size

+    #

+    iotests.log("=== Invalid cluster size ===")

+    iotests.log("")

+

+    vm.launch()

+    for csize in [ 1234, 128, 4294967296, 9223372036854775808,

+                   18446744073709551104, 0 ]:

+        blockdev_create(vm, { 'driver': imgfmt,

+                              'file': 'node0',

+                              'size': 67108864,

+                              'cluster-size': csize })

+    blockdev_create(vm, { 'driver': imgfmt,

+                          'file': 'node0',

+                          'size': 281474976710656,

+                          'cluster-size': 512 })

+    vm.shutdown()

diff --git a/tests/qemu-iotests/212.out b/tests/qemu-iotests/212.out

index 587de6f..780bc30 100644

--- a/tests/qemu-iotests/212.out

+++ b/tests/qemu-iotests/212.out

@@ -1,111 +1,156 @@

-QA output created by 212

-

 === Successful image creation (defaults) ===

-Testing:

-QMP_VERSION

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'size': 0, 'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'blockdev-add', 'arguments': {'node_name': 'imgfile', 'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}}

+{u'return': {}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'imgfile', 'size': 134217728}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

-image: TEST_DIR/t.IMGFMT

+image: TEST_IMG

 file format: IMGFMT

 virtual size: 128M (134217728 bytes)

 === Successful image creation (explicit defaults) ===

-Testing:

-QMP_VERSION

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'size': 0, 'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

-image: TEST_DIR/t.IMGFMT

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'cluster-size': 1048576, 'driver': 'parallels', 'file': {'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}, 'size': 67108864}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+image: TEST_IMG

 file format: IMGFMT

 virtual size: 64M (67108864 bytes)

 === Successful image creation (with non-default options) ===

-Testing:

-QMP_VERSION

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'size': 0, 'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'cluster-size': 65536, 'driver': 'parallels', 'file': {'driver': 'file', 'filename': 'TEST_DIR/PID-t.parallels'}, 'size': 33554432}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

-image: TEST_DIR/t.IMGFMT

+image: TEST_IMG

 file format: IMGFMT

 virtual size: 32M (33554432 bytes)

 === Invalid BlockdevRef ===

-Testing:

-QMP_VERSION

-{"return": {}}

-{"error": {"class": "GenericError", "desc": "Cannot find device=this doesn't exist nor node_name=this doesn't exist"}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

-

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': "this doesn't exist", 'size': 33554432}}}

+{u'return': {}}

+Job failed: Cannot find device=this doesn't exist nor node_name=this doesn't exist

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

 === Zero size ===

-Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=node0

-QMP_VERSION

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 0}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

-image: TEST_DIR/t.IMGFMT

+image: TEST_IMG

 file format: IMGFMT

 virtual size: 0 (0 bytes)

 === Maximum size ===

-Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=node0

-QMP_VERSION

-{"return": {}}

-{"return": {}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 4503599627369984}}}

+{u'return': {}}

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

-image: TEST_DIR/t.IMGFMT

+image: TEST_IMG

 file format: IMGFMT

 virtual size: 4096T (4503599627369984 bytes)

 === Invalid sizes ===

-Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=node0

-QMP_VERSION

-{"return": {}}

-{"error": {"class": "GenericError", "desc": "Image size must be a multiple of 512 bytes"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"return": {}}

-{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

-

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 1234}}}

+{u'return': {}}

+Job failed: Image size must be a multiple of 512 bytes

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 18446744073709551104L}}}

+{u'return': {}}

+Job failed: Image size is too large for this cluster size

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 9223372036854775808L}}}

+{u'return': {}}

+Job failed: Image size is too large for this cluster size

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 9223372036854775296}}}

+{u'return': {}}

+Job failed: Image size is too large for this cluster size

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

+

+{'execute': 'x-blockdev-create', 'arguments': {'job_id': 'job0', 'options': {'driver': 'parallels', 'file': 'node0', 'size': 4503599627370497}}}

+{u'return': {}}

+Job failed: Image size is too large for this cluster size

+{'execute': 'job-dismiss', 'arguments': {'id': 'job0'}}

+{u'return': {}}

 === Invalid cluster size ===

-Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=node0

-QMP_VERSION

-{"return": {}}

-{"error": {"class": "GenericError", "desc": "Cluster size must be a multiple of 512 bytes"}}

-{"error": {"class": "GenericError", "desc": "Cluster size must be a multiple of 512 bytes"}}

-{"error": {"class": "GenericError", "desc": "Cluster size is too large"}}

-{"error": {"class": "GenericError", "desc": "Cluster size is too large"}}

-{"error": {"class": "GenericError", "desc": "Cluster size is too large"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"error": {"class": "GenericError", "desc": "Image size is too large for this cluster size"}}

-{"return": {}}