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Collecting Logs From a Failed Node Install or Imaging

Logs required for debugging issues from a failed node install or imaging can be collected and transferred using NFS/CIFS mount after network is configured on the node.

Procedure

  1. Configure network on the node using the following steps:
    • On environments with DHCP, assign IP address to the public interface using the following command:

      # dhclient <intx>

    • on non-DHCP environments, , assign static IP address to the public interface using the following commands:

      # ifconfig <intx> <IPaddre> netmask <nmask>
      # route add default gw <gateway> <intx>

  2. Mount NFS/CIFS export on the node
    • Use the following command to mount NFS export on the node:

      # mount -o nolock <NFSServerIP>:<ExportPath> <mountpath>

      Without the -o nolock option, the following error will be seen:

      mount.nfs: rpc.statd is not running but is required for remote locking.
      mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
      mount.nfs: mounting <server:path> failed, reason given by server: No such file or directory

    • Use the following command to mount CIFS export on the node:

      # mount.cifs <WindowsExportPath> <mountpath> -o user=<username>

      Enter the password for given username for mount.

  3. Collect the logs by copying the following files/directories to the NFS/CIFS mount. You can use tar to compress any needed directories.
    • Directory /var/log/
    • All .xml and .map files present at /
    • Output of dmesg command
    • Output of LVM commands vgscan, lvscan, and pvscan

Last modified: 6/23/2020 9:27:22 PM