Opened 15 years ago

Closed 15 years ago

#5935 closed defect (invalid)

OpenSolaris iSCSI boot client panic - can't read pool label

Reported by: William Schumann Owned by:
Component: virtual disk Version: VirtualBox 3.1.2
Keywords: Cc:
Guest type: Solaris Host type: Solaris


OpenSolaris panics using VirtualBox iSCSI initiator to boot.


  • OpenSolaris is installed to an iSCSI target using the OpenSolaris initiator
  • The vbox is shut down
  • The disk that was previously declared with "VBoxManage addiscsi ..." is added to the vbox.\
  • The vbox is rebooted.
  • GRUB menu appears,
  • Boot proceeds briefly, but kernel panics because it can't read the ZFS pool label.

From console: NOTICE: Can not read the pool label from '/iscsi_vhci/disk/g6000<hex string>b00:a NOTICE: spa_import_rootpool: error 5 Cannot mount root on /iscsi_vhci/disk/g000<hex string>b00:a fstype zfs panic in vfs_mountroot - see attached screenshot

Wireshark ethernet trace does not show any errors, but one Inquiry Response Data message says [iSCSI transfer limited due to allocation_length too small] Trace available upon request.

Log attached

Networking: bridged e1000g

NOTE: The OpenSolaris iSCSI boot install has just been pushed to the repository and is not yet fully publicly documented. Do not hesitate to contact me with any questions or concerns.

Attachments (3)

cantreadpoollabel.log (42.5 KB ) - added by William Schumann 15 years ago.
VirtualBox log
cantreadpoollabel.png (30.6 KB ) - added by William Schumann 15 years ago.
Screenshot of OpenSolaris console
menu.lst.png (122.5 KB ) - added by William Schumann 15 years ago.
Screenshot of menu.lst

Download all attachments as: .zip

Change History (6)

by William Schumann, 15 years ago

Attachment: cantreadpoollabel.log added

by William Schumann, 15 years ago

Attachment: cantreadpoollabel.png added

Screenshot of OpenSolaris console

comment:1 by William Schumann, 15 years ago

Tested boot of the same iSCSI boot target using hardware with iSCSI NIC - booted without panic.

by William Schumann, 15 years ago

Attachment: menu.lst.png added

Screenshot of menu.lst

comment:2 by William Schumann, 15 years ago

Hand-typed GRUB commands - boot archive appears to be read.

As a test, did a complete install to the iSCSI boot target through the VirtualBox initiator - the installation finished without reporting any problems.

comment:3 by Klaus Espenlaub, 15 years ago

Resolution: invalid
Status: newclosed

This seems to be a misunderstanding, as the behavior looks perfectly normal.

The VirtualBox iSCSI initiator is not seen by the guest as iSCSI, it is seen as a regular IDE/SATA/SCSI disk. This means that you have to adjust your Solaris boot config accordingly. The panic will not go away ss long as it expects to see an iSCSI NIC and boot off it. VirtualBox doesn't have such a thing, it completely hides iSCSI.

There are lots of "change disk controller" recipes out there for Solaris, one of them is (which probably needs quite some adjustments for OpenSolaris).

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