[GH-ISSUE #588] Adding logical volume results in "500 Internal Server Error" #344

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opened 2026-02-27 15:58:19 +03:00 by kerem · 4 comments

kerem commented 2026-02-27 15:58:19 +03:00

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Originally created by @silch on GitHub (May 18, 2023).
Original GitHub issue: https://github.com/retspen/webvirtcloud/issues/588

Host OS: Debian 11
Host kernel: 6.2.15-1-liquorix-amd64
Qemu version: 5.2.0
Libvirt version: 7.0.0

My steps:

1. installed webvirtcloud using "Quick Install"
2. created a guest which seems to work fine
3. created a RAID5 (/dev/md0) with LUKS on top it (/dev/mapper/raid). On top of that I want LVM so I can add logical volumes to my guest machine
4. created LVM storage pool (Name: raid; Device: /dev/mapper/raid) in web GUI
5. added volume in guest settings (New Disk; Storage: raid, Name: test; Format: qcow2; Size: 4096GB; Bus: virtio; Cache: Direct sync; Metadata: false)

This returns an "500 Internal Server Error". Same thing happens if the volume is created beforehand in storage pool settings, or even manually with pvcreate/vgcreate/lvcreate.

guest xml:

<domain type='kvm'>
  <name>files</name>
  <uuid>***</uuid>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <vcpus>
    <vcpu id='0' enabled='yes' hotpluggable='no' order='1'/>
  </vcpus>
  <os>
    <type arch='x86_64' machine='pc-q35-5.2'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/OVMF/OVMF_CODE_4M.fd</loader>
    <nvram>/var/lib/libvirt/qemu/nvram/files_VARS.fd</nvram>
    <boot dev='hd'/>
    <boot dev='cdrom'/>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-passthrough' check='none' migratable='on'/>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='directsync'/>
      <source file='/var/lib/libvirt/images/files.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/images/debian-11.7.0-amd64-netinst.iso'/>
      <target dev='sda' bus='sata'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0' model='piix3-uhci'>
      <address type='pci' domain='0x0000' bus='0x03' slot='0x01' function='0x0'/>
    </controller>
    <controller type='sata' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pcie-root'/>
    <controller type='pci' index='1' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='1' port='0x10'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
    </controller>
    <controller type='pci' index='2' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='2' port='0x11'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
    </controller>
    <controller type='pci' index='3' model='pcie-to-pci-bridge'>
      <model name='pcie-pci-bridge'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
    </controller>
    <controller type='pci' index='4' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='4' port='0x12'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
    </controller>
    <controller type='pci' index='5' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='5' port='0x13'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
    </controller>
    <controller type='pci' index='6' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='6' port='0x14'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/>
    </controller>
    <controller type='pci' index='7' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='7' port='0x15'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x5'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:**:**:**'/>
      <source network='br0'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='unix'>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='vga' vram='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
    </memballoon>
  </devices>
</domain>

With debugging enabled it says "Exception at /instances/15/add_new_vol/":

Traceback:

Environment:

Request Method: POST
Request URL: http://192.168.1.27:80/instances/15/add_new_vol/

Django Version: 3.2.19
Python Version: 3.9.2
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django_bootstrap5',
 'django_icons',
 'django_otp',
 'django_otp.plugins.otp_totp',
 'drf_yasg',
 'accounts',
 'admin',
 'appsettings',
 'computes',
 'console',
 'datasource',
 'networks',
 'instances',
 'interfaces',
 'nwfilters',
 'storages',
 'virtsecrets',
 'logs',
 'qr_code',
 'rest_framework']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django_otp.middleware.OTPMiddleware',
 'login_required.middleware.LoginRequiredMiddleware',
 'django.contrib.auth.middleware.RemoteUserMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'appsettings.middleware.AppSettingsMiddleware',
 'webvirtcloud.middleware.ExceptionMiddleware']

Traceback (most recent call last):
  File "/srv/webvirtcloud/venv/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/srv/webvirtcloud/venv/lib/python3.9/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/srv/webvirtcloud/instances/views.py", line 719, in add_new_vol
    instance.proxy.attach_disk(
  File "/srv/webvirtcloud/vrtManager/instance.py", line 803, in attach_disk
    raise Exception("Not implemented disk type")

Exception Type: Exception at /instances/15/add_new_vol/
Exception Value: Not implemented disk type

Local vars:
  additionals           "cache='directsync' "
  cache_mode            'directsync'
  detect_zeroes_mode    None
  discard_mode          None
  disk_device           'disk'
  disk_type             'block'
  driver_name           'qemu'
  format_type           None
  io_mode               None
  pool_type             'logical'
  readonly              False
  self                  <vrtManager.instance.wvmInstance object at 0x7f72790ad7c0>
  serial                None
  shareable             False
  source                '/dev/raid/test'
  source_info           None
  target_bus            'virtio'
  target_dev            'vdb'
  xml_disk              ("<disk type='block' device='disk'><driver name='qemu' type='None'" "cache='directsync' />")

Any ideas what's wrong?

Originally created by @silch on GitHub (May 18, 2023). Original GitHub issue: https://github.com/retspen/webvirtcloud/issues/588 Host OS: Debian 11 Host kernel: 6.2.15-1-liquorix-amd64 Qemu version: 5.2.0 Libvirt version: 7.0.0 My steps: 1. installed webvirtcloud using "Quick Install" 2. created a guest which seems to work fine 3. created a RAID5 (/dev/md0) with LUKS on top it (/dev/mapper/raid). On top of that I want LVM so I can add logical volumes to my guest machine 4. created LVM storage pool (Name: raid; Device: /dev/mapper/raid) in web GUI 5. added volume in guest settings (New Disk; Storage: raid, Name: test; Format: qcow2; Size: 4096GB; Bus: virtio; Cache: Direct sync; Metadata: false) This returns an "500 Internal Server Error". Same thing happens if the volume is created beforehand in storage pool settings, or even manually with pvcreate/vgcreate/lvcreate. guest xml: ``` <domain type='kvm'> <name>files</name> <uuid>***</uuid> <memory unit='KiB'>2097152</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>1</vcpu> <vcpus> <vcpu id='0' enabled='yes' hotpluggable='no' order='1'/> </vcpus> <os> <type arch='x86_64' machine='pc-q35-5.2'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/OVMF/OVMF_CODE_4M.fd</loader> <nvram>/var/lib/libvirt/qemu/nvram/files_VARS.fd</nvram> <boot dev='hd'/> <boot dev='cdrom'/> <bootmenu enable='yes'/> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-passthrough' check='none' migratable='on'/> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='directsync'/> <source file='/var/lib/libvirt/images/files.qcow2'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/debian-11.7.0-amd64-netinst.iso'/> <target dev='sda' bus='sata'/> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='usb' index='0' model='piix3-uhci'> <address type='pci' domain='0x0000' bus='0x03' slot='0x01' function='0x0'/> </controller> <controller type='sata' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> </controller> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='1' port='0x10'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/> </controller> <controller type='pci' index='2' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='2' port='0x11'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/> </controller> <controller type='pci' index='3' model='pcie-to-pci-bridge'> <model name='pcie-pci-bridge'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </controller> <controller type='pci' index='4' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='4' port='0x12'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/> </controller> <controller type='pci' index='5' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='5' port='0x13'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/> </controller> <controller type='pci' index='6' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='6' port='0x14'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/> </controller> <controller type='pci' index='7' model='pcie-root-port'> <model name='pcie-root-port'/> <target chassis='7' port='0x15'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x5'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/> </controller> <interface type='network'> <mac address='52:54:00:**:**:**'/> <source network='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> </interface> <serial type='pty'> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <input type='tablet' bus='usb'> <address type='usb' bus='0' port='1'/> </input> <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'> <listen type='address' address='0.0.0.0'/> </graphics> <video> <model type='vga' vram='16384' heads='1' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/> </memballoon> </devices> </domain> ``` With debugging enabled it says "Exception at /instances/15/add_new_vol/": ``` Traceback: Environment: Request Method: POST Request URL: http://192.168.1.27:80/instances/15/add_new_vol/ Django Version: 3.2.19 Python Version: 3.9.2 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django_bootstrap5', 'django_icons', 'django_otp', 'django_otp.plugins.otp_totp', 'drf_yasg', 'accounts', 'admin', 'appsettings', 'computes', 'console', 'datasource', 'networks', 'instances', 'interfaces', 'nwfilters', 'storages', 'virtsecrets', 'logs', 'qr_code', 'rest_framework'] Installed Middleware: ['django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.locale.LocaleMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django_otp.middleware.OTPMiddleware', 'login_required.middleware.LoginRequiredMiddleware', 'django.contrib.auth.middleware.RemoteUserMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'appsettings.middleware.AppSettingsMiddleware', 'webvirtcloud.middleware.ExceptionMiddleware'] Traceback (most recent call last): File "/srv/webvirtcloud/venv/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner response = get_response(request) File "/srv/webvirtcloud/venv/lib/python3.9/site-packages/django/core/handlers/base.py", line 181, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/srv/webvirtcloud/instances/views.py", line 719, in add_new_vol instance.proxy.attach_disk( File "/srv/webvirtcloud/vrtManager/instance.py", line 803, in attach_disk raise Exception("Not implemented disk type") Exception Type: Exception at /instances/15/add_new_vol/ Exception Value: Not implemented disk type Local vars: additionals "cache='directsync' " cache_mode 'directsync' detect_zeroes_mode None discard_mode None disk_device 'disk' disk_type 'block' driver_name 'qemu' format_type None io_mode None pool_type 'logical' readonly False self <vrtManager.instance.wvmInstance object at 0x7f72790ad7c0> serial None shareable False source '/dev/raid/test' source_info None target_bus 'virtio' target_dev 'vdb' xml_disk ("<disk type='block' device='disk'><driver name='qemu' type='None'" "cache='directsync' />") ``` Any ideas what's wrong?

kerem closed this issue 2026-02-27 15:58:19 +03:00

kerem commented 2026-02-27 15:58:19 +03:00

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@catborise commented on GitHub (May 18, 2023):

Reason:
"Exception Type: Exception at /instances/15/add_new_vol/
Exception Value: Not implemented disk type"

adding lvm volume to instances is a complicated operation. because of that we have not implement it yet. you should add this type disk to instance with virt-manager for now.
we will try to implement it later.

<!-- gh-comment-id:1553039040 --> @catborise commented on GitHub (May 18, 2023): Reason: "Exception Type: Exception at /instances/15/add_new_vol/ Exception Value: Not implemented disk type" adding lvm volume to instances is a complicated operation. because of that we have not implement it yet. you should add this type disk to instance with virt-manager for now. we will try to implement it later.

kerem commented 2026-02-27 15:58:19 +03:00

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@silch commented on GitHub (May 18, 2023):

That was fast and helpful, thanks. My host is headless, so virt-manager is not an option. In case someone's wondering, here's how I added the disk in the command line:

virsh attach-disk <vm name> <disk source> <disk target> --cache none

In my case:

virsh attach-disk files /dev/raid/test vdb --cache none

<!-- gh-comment-id:1553101477 --> @silch commented on GitHub (May 18, 2023): That was fast and helpful, thanks. My host is headless, so virt-manager is not an option. In case someone's wondering, here's how I added the disk in the command line: `virsh attach-disk <vm name> <disk source> <disk target> --cache none` In my case: `virsh attach-disk files /dev/raid/test vdb --cache none`

kerem commented 2026-02-27 15:58:19 +03:00

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@catborise commented on GitHub (May 18, 2023):

u can connect to your remote host with your local virt-manager installation. there is no need to install on your headless host.

<!-- gh-comment-id:1553378366 --> @catborise commented on GitHub (May 18, 2023): u can connect to your remote host with your local virt-manager installation. there is no need to install on your headless host.

kerem commented 2026-02-27 15:58:19 +03:00

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@silch commented on GitHub (May 18, 2023):

u can connect to your remote host with your local virt-manager installation. there is no need to install on your headless host.

That's pretty neat, worked out of the box. Thanks again!

<!-- gh-comment-id:1553569656 --> @silch commented on GitHub (May 18, 2023): > u can connect to your remote host with your local virt-manager installation. there is no need to install on your headless host. That's pretty neat, worked out of the box. Thanks again!

kerem referenced this issue 2026-02-27 15:58:59 +03:00

[PR #344] [MERGED] vnc console options added #508

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