[Bug 912588] Re: mount.ocfs2 doesn't accept mount option "uhelper=udisks"

Fri Jan 6 00:53:07 UTC 2012

** Description changed:

- 3-node Ubuntu AOE/OCFS2 Cluster
+ Scenario:
+ 3-node Ubuntu AoE*/OCFS2 Cluster on Ubuntu Server sharing disks with Ubuntu Desktops

- Node 1: Oneiric ubuntu-server amd64 with disk shared using AOE and formatted and clustered with OCFS2.
+ Node 1: Oneiric ubuntu-server amd64 with disk shared using AoE and formatted and clustered with OCFS2.
  Node 2: Oneiric mint-desktop i386
- Node 2: Oneiric ubuntu-desktop amd64
+ Node 3: Oneiric ubuntu-desktop amd64

  Background:
  1. Initially implemented AOE to share disks in node 1 (SAN) formatted XFS
  2. Needed to access FS on disks from more than one Ubuntu desktop client
  3. Implemented OCFS2 cluster and formatted one disk (label "Backup") in node 1 with OCFS2 to test

  Problem:
  4. Mounting the disk using Nautilus fails with the following error thrown by Nautilus:
- Unable to mount
+ Unable to mount Backup
  Error mounting: mount exited with exit code 1: mount.ocfs2: Invalid argument while mounting /dev/etherd/e2.0p1 on /media/Backup_. Check 'dmesg' for more information on this error.

  dmesg includes the following:
  Jan  6 02:06:52 anthracite kernel: [ 8672.067816] (mount.ocfs2,27208,1):ocfs2_parse_options:1512 ERROR: Unrecognized mount option "uhelper=udisks" or missing value
  Jan  6 02:06:52 anthracite kernel: [ 8672.067824] (mount.ocfs2,27208,1):ocfs2_fill_super:1233 ERROR: status = -22

  As I understand it the uhelper=udisks mount option relates to the disk
  showing up in the "Devices" section of Nautilus.

  Further:
  5. Creating a mount point and mounting the drive using the mount command works fine and it still shows up in the "Devices" section of Nautilus:

  mount -L "Backup" /media/Backup/

  Synposis:

  6. It would thus appear that mount.ocfs2 does not support this mount
  option.  This is understandable given that OCFS2 is used heavily in
  server-only environments and not in sharing for use by Linux desktop
  machines.

  7. However, such use cases will surely increase and it should be trivial
  to add support for this mount option.

  Thanks very much.
+ 
+ *ATA over Ethernet

** Description changed:

  Scenario:
- 3-node Ubuntu AoE*/OCFS2 Cluster on Ubuntu Server sharing disks with Ubuntu Desktops

- Node 1: Oneiric ubuntu-server amd64 with disk shared using AoE and formatted and clustered with OCFS2.
+ 3-node Ubuntu AoE*/OCFS2 Cluster on Ubuntu Server sharing disks with
+ Ubuntu Desktops
+ 
+ Node 1: Oneiric ubuntu-server amd64 with disk shared using AoE and formatted and clustered
+         with OCFS2.
  Node 2: Oneiric mint-desktop i386
  Node 3: Oneiric ubuntu-desktop amd64

  Background:
- 1. Initially implemented AOE to share disks in node 1 (SAN) formatted XFS
+ 
+ 1. Initially implemented AOE to share disks in node 1 (SAN) formatted
+ XFS
+ 
  2. Needed to access FS on disks from more than one Ubuntu desktop client
- 3. Implemented OCFS2 cluster and formatted one disk (label "Backup") in node 1 with OCFS2 to test
+ 
+ 3. Implemented OCFS2 cluster and formatted one disk (label "Backup") in
+ node 1 with OCFS2 to test

  Problem:
+ 
  4. Mounting the disk using Nautilus fails with the following error thrown by Nautilus:
  Unable to mount Backup
  Error mounting: mount exited with exit code 1: mount.ocfs2: Invalid argument while mounting /dev/etherd/e2.0p1 on /media/Backup_. Check 'dmesg' for more information on this error.

  dmesg includes the following:
  Jan  6 02:06:52 anthracite kernel: [ 8672.067816] (mount.ocfs2,27208,1):ocfs2_parse_options:1512 ERROR: Unrecognized mount option "uhelper=udisks" or missing value
  Jan  6 02:06:52 anthracite kernel: [ 8672.067824] (mount.ocfs2,27208,1):ocfs2_fill_super:1233 ERROR: status = -22

  As I understand it the uhelper=udisks mount option relates to the disk
  showing up in the "Devices" section of Nautilus.

  Further:
- 5. Creating a mount point and mounting the drive using the mount command works fine and it still shows up in the "Devices" section of Nautilus:

- mount -L "Backup" /media/Backup/
+ 5. Nautilus mounts the AoE shared XFS devices without error, even on
+ multiple devices simultaneously, posing risk to FS integrity
+ (intentional AoE design)
+ 
+ 6. Creating a mount point and mounting the drive using the mount command
+ works fine and it still shows up in the "Devices" section of Nautilus:
+ 
+ # mount -L "Backup" /media/Backup/

  Synposis:

- 6. It would thus appear that mount.ocfs2 does not support this mount
+ 7. It would thus appear that mount.ocfs2 does not support this mount
  option.  This is understandable given that OCFS2 is used heavily in
  server-only environments and not in sharing for use by Linux desktop
  machines.

- 7. However, such use cases will surely increase and it should be trivial
+ 8. However, such use cases will surely increase and it should be trivial
  to add support for this mount option.

  Thanks very much.

  *ATA over Ethernet

** Description changed:

  Scenario:

  3-node Ubuntu AoE*/OCFS2 Cluster on Ubuntu Server sharing disks with
  Ubuntu Desktops

  Node 1: Oneiric ubuntu-server amd64 with disk shared using AoE and formatted and clustered
-         with OCFS2.
+         with OCFS2.
  Node 2: Oneiric mint-desktop i386
  Node 3: Oneiric ubuntu-desktop amd64

  Background:

  1. Initially implemented AOE to share disks in node 1 (SAN) formatted
  XFS

  2. Needed to access FS on disks from more than one Ubuntu desktop client

  3. Implemented OCFS2 cluster and formatted one disk (label "Backup") in
  node 1 with OCFS2 to test

  Problem:

  4. Mounting the disk using Nautilus fails with the following error thrown by Nautilus:
  Unable to mount Backup
  Error mounting: mount exited with exit code 1: mount.ocfs2: Invalid argument while mounting /dev/etherd/e2.0p1 on /media/Backup_. Check 'dmesg' for more information on this error.

  dmesg includes the following:
  Jan  6 02:06:52 anthracite kernel: [ 8672.067816] (mount.ocfs2,27208,1):ocfs2_parse_options:1512 ERROR: Unrecognized mount option "uhelper=udisks" or missing value
  Jan  6 02:06:52 anthracite kernel: [ 8672.067824] (mount.ocfs2,27208,1):ocfs2_fill_super:1233 ERROR: status = -22

  As I understand it the uhelper=udisks mount option relates to the disk
  showing up in the "Devices" section of Nautilus.

  Further:

  5. Nautilus mounts the AoE shared XFS devices without error, even on
  multiple devices simultaneously, posing risk to FS integrity
  (intentional AoE design)

- 6. Creating a mount point and mounting the drive using the mount command
- works fine and it still shows up in the "Devices" section of Nautilus:
+ 6. Creating a mount point and mounting the disk (AoE shared OCFS2
+ "Backup") using the mount command works fine and it still shows up in
+ the "Devices" section of Nautilus:

  # mount -L "Backup" /media/Backup/

  Synposis:

  7. It would thus appear that mount.ocfs2 does not support this mount
  option.  This is understandable given that OCFS2 is used heavily in
  server-only environments and not in sharing for use by Linux desktop
  machines.

  8. However, such use cases will surely increase and it should be trivial
  to add support for this mount option.

  Thanks very much.

  *ATA over Ethernet

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https://bugs.launchpad.net/bugs/912588

Title:
  mount.ocfs2 doesn't accept mount option "uhelper=udisks"

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