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SUSE Linux Migration from AWS to Azure - Start job is running for device xxxx no limit RRS feed

  • Question

  • Hi, 

    We are trying to migrate SUSE linux Enterprise server 12 SP04 from AWS to Azure using Azure Site Recovery (ASR). 

    We have completed the ASR process, did a actual failover and completed the migration but the system is unable to boot.

    The boot diagnostics shows the following:

    
    [    3.609142] hv_vmbus: registering driver hv_netvsc
    [�[0;32m  OK  �[0m] Started dracut pre-udev hook.
             Starting udev Kernel Device Manager...
    [�[0;32m  OK  �[0m] Started udev Kernel Device Manager.
             Starting dracut pre-trigger hook...
    [�[0;32m  OK  �[0m] Started dracut pre-trigger hook.
             Starting udev Coldplug all Devices...
    [�[0;32m  OK  �[0m] Started udev Coldplug all Devices.
    [�[0;32m  OK  �[0m] Reached target Remote File Systems (Pre).
    [�[0;32m  OK  �[0m] Reached target Remote File Systems.
    [�[0;32m  OK  �[0m] Reached target System Initialization.
    [�[0;32m  OK  �[0m] Reached target Basic System.
    [    4.435331] ata_piix 0000:00:07.1: Hyper-V Virtual Machine detected, ATA device ignore set
    [    4.444852] scsi host4: ata_piix
    [    4.447124] scsi host5: ata_piix
    [    4.449319] ata1: PATA max UDMA/33 cmd 0x1f0 ctl 0x3f6 bmdma 0xffa0 irq 14
    [    4.453293] ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xffa8 irq 15
    [    7.588093] psmouse serio1: trackpoint: IBM TrackPoint firmware: 0x01, buttons: 3/3
    [    7.595072] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/input/input2
    [�[0m�[0;31m*     �[0m] A start job is running for dev-disk...51432ea92.device (6s / no limit)
    �[K[�[0;1;31m*�[0m�[0;31m*    �[0m] A start job is running for dev-disk...51432ea92.device (7s / no limit)
    �[K[�[0;31m*�[0;1;31m*�[0m�[0;31m*   �[0m] A start job is running for dev-disk...51432ea92.device (7s / no limit)
    �[K[ �[0;31m*�[0;1;31m*�[0m�[0;31m*  �[0m] A start job is running for dev-disk...51432ea92.device (8s / no limit)
    �[K[  �[0;31m*�[0;1;31m*�[0m�[0;31m* �[0m] A start job is running for dev-disk...51432ea92.device (8s / no limit)
    �[K[   �[0;31m*�[0;1;31m*�[0m�[0;31m*�[0m] A start job is running for dev-disk...51432ea92.device (9s / no limit)
    �[K[    �[0;31m*�[0;1;31m*�[0m] A start job is running for dev-disk...1432ea92.device (10s / no limit)


    Things we have tried with no help:

    - We took a snapshot of the OS disk and attached the a recovery VM and commented out the fstab and swap the OS disk back to the original VM

    - We tried to kill the task that was running with "no limit" using Sysrq command from the serial console. 

    - We tried accessing GRUB mode / Single user mode but were unable to do so.

    Observations:

    - The start job is looking for the UUID of the root file system present in the AWS.

    - Will the UUID remain the same even after migrating from AWS to Azure??

    - In the Microsoft documentation ASR there is no mention of SUSE Linux in the prerequisites. 

    Please advice. 

    Thursday, January 9, 2020 4:41 PM

All replies

  • If replication was successful and the VM is not booting up, then this calls for further investigation. This could be an Azure VM platform issue which may require deep dive technically to find the root cause of VM boot failure. In this is the scenario, we need to engage the responsible for immediate help. I recommend creating a technical support ticket, so that the support professional from the concerned team can contact you to troubleshoot this issue further.

    Here is the link https://docs.microsoft.com/en-in/azure/azure-supportability/how-to-create-azure-support-request to create support case.

    Reg: UUID - ASR doesn’t change system UUID. On failover a new VM instance is created, for which Azure by default generates a new system UUID. ASR has no role in retaining system UUID. This is the reason you will see that system UUID changes once you failover the VM.

    For your reference:  Support matrix for SUSE Linux VM

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    Friday, January 10, 2020 1:50 PM
    Moderator