1 Reply Latest reply on Apr 8, 2020 2:47 AM by sudhirnir

    esxcfg-dumppart results in DiagnosticPartition: Unable to copy the dump partition: WARNING: Start offset less than header size!

    aenagy Hot Shot

      I'm trying to follow the procedure in "Generating a VMkernel zdump manually from a dump file in ESXi host" (http://kb.vmware.com/kb/2081902) and get an error message:

       

      Unable to copy the dump partition: WARNING: Start offset less than header size!

       

       

      [root@TOPVCPESXi01:~] df -h
      Filesystem   Size   Used Available Use% Mounted on
      NFS         13.7G  92.0K     13.7G   0% /vmfs/volumes/NFS_vol01
      VMFS-5      49.8G 973.0M     48.8G   2% /vmfs/volumes/TOPVCPESXi01-HDD1
      VMFS-5      49.8G   1.2G     48.5G   2% /vmfs/volumes/TOPVCPESXi01-HDD2
      VMFS-5      79.8G 975.0M     78.8G   1% /vmfs/volumes/iSCSI_vol01
      VMFS-5       3.8G 663.0M      3.1G  17% /vmfs/volumes/TOPVCPESXi01_Flash1
      VMFS-5       7.8G 871.0M      6.9G  11% /vmfs/volumes/TOPVCPESXi01_Flash2
      vfat       249.7M 167.9M     81.8M  67% /vmfs/volumes/9f691e7f-5aef34de-7c69-e495051b6cfd
      vfat       249.7M 167.9M     81.8M  67% /vmfs/volumes/bba0137d-45163325-50f6-9fce85fbd663
      vfat       285.8M 202.6M     83.2M  71% /vmfs/volumes/5702fb79-60862c63-10b0-00505686d3de
      [root@TOPVCPESXi01:~] esxcfg-dumppart --file --copy --devname active
      DiagnosticPartition: Unable to copy the dump partition: WARNING: Start offset less than header size!
      [root@TOPVCPESXi01:~]
      [root@TOPVCPESXi01:~] esxcfg-dumppart --file --copy --devname active --zdumpname
      /vmfs/volumes/TOPVCPESXi01-HDD1/coredump.dumpfile
      DiagnosticPartition: Unable to copy the dump partition: WARNING: Start offset less than header size!
      [root@TOPVCPESXi01:~]vmware -v
      VMware ESXi 6.0.0 build-3620759
      [root@TOPVCPESXi01:~]esxcli system coredump file get
         Active: /vmfs/volumes/58f66671-5a5024fa-dfa0-000c297ef042/vmkdump/564D8C8A-F10A-42B4-43F9-4C7E7C7EF042.dumpfile
         Configured: /vmfs/volumes/58f66671-5a5024fa-dfa0-000c297ef042/vmkdump/564D8C8A-F10A-42B4-43F9-4C7E7C7EF042.dumpfile
      [root@TOPVCPESXi01:~]

       

      If I deliberately cause a panic (vsish -e set /reliability/crashMe/Panic 1) ESXi is able to create dump to both local storage