6 Replies Latest reply: May 23, 2008 2:35 PM by 494282 RSS

    Oracle VM reboot  continuously after finished installation

    614758
      Dear,

      Please advice if someone encounters the same problem as i have now.
      after finished install Oracle VM and it asks for a reboot. after that it continuously reboot it self when came up. if i select the third selection then it could come up but no Dom0
      Please advice how to fix this error.

      Thanks in advance.
      Tom

      # Detect64 claims this is 64 bit
      box
      default=1
      timeout=5
      splashimage=(hd0,0)/grub/splash.xpm.gz
      hiddenmenu
      title Oracle VM Server (xen-3.1.1 2.6.18-8.1.6.0.18.el5ovs)
      root (hd0,0)
      kernel /xen.gz console=ttyS0,57600n8 console=tty dom0_mem=512M
      module /vmlinuz-2.6.18-8.1.6.0.18.el5xen ro root=LABEL=/1
      module /initrd-2.6.18-8.1.6.0.18.el5xen.img
      title Oracle VM Server (xen-64-3.1.1 2.6.18-8.1.6.0.18.el5ovs)
      root (hd0,0)
      kernel /xen.gz console=ttyS0,57600n8 console=tty dom0_mem=512M
      module /vmlinuz-2.6.18-8.1.6.0.18.el5xen ro root=LABEL=/1
      module /initrd-2.6.18-8.1.6.0.18.el5xen.img
      title Oracle VM Server-BOOT (2.6.18-8.1.6.0.18.el5BOOT)
      root (hd0,0)
      kernel /vmlinuz-2.6.18-8.1.6.0.18.el5BOOT ro root=LABEL=/1
      initrd /initrd-2.6.18-8.1.6.0.18.el5BOOT.img
        • 1. Re: Oracle VM reboot  continuously after finished installation
          610629
          Add noreboot at the end of these two lines in /etc/grub.conf
          kernel /xen.gz console=ttyS0,57600n8 console=tty
          :
          kernel /xen.gz console=ttyS0,57600n8 console=tty
          and you should get a better idea of what the problem is.

          Note that you will have to manually reboot the machine so don't do this on a machine if you don't have physical access!
          • 2. Re: Oracle VM reboot  continuously after finished installation
            518883
            It seems a hypervisor problem. but others cannot help unless you can provide further information.

            The default 2.1 grub configuration has some problem for getting the hypervisor boot log. try creating a grub boot iterm:

            title xen serial console
            root (hd0,0)
            kernel /xen.gz com1=115200,8n1 console=com1,vga dom0_mem=512M
            module /vmlinuz-2.6.18-8.1.6.0.18.el5xen ro root=LABEL=/1 console=tty0 console=ttyS0,115200n8
            module /initrd-2.6.18-8.1.6.0.18.el5xen.img

            then boot with this item and connect a serial line to the server and capture the log in another host.

            For detailed information, refer to Debugging Xen with Serial Console: http://os-drive.com/en/node/33
            • 3. Re: Oracle VM reboot  continuously after finished installation
              518883
              You may get some info if you prevent xen from rebooting when panic.
                   
              Follow these steps to get that:

              There are two places to consider:

              For xen hypervisor: appended "noreboot" to xen's command line.
              For linux dom0: append "panic=0" to linux's comand line,

              Then the grub boot item looks like:

              title xen serial console
              root (hd0,0)
              kernel /xen.gz com1=115200,8n1 console=com1,vga dom0_mem=512M noreboot
              module /vmlinuz-2.6.18-8.1.6.0.18.el5xen ro root=LABEL=/1 console=tty0 console=ttyS0,115200n8 panic=0
              module /initrd-2.6.18-8.1.6.0.18.el5xen.img

              refer to: http://os-drive.com/files/docbook/xen-faq.html#prevent_reboot
              • 4. Re: Oracle VM reboot  continuously after finished installation
                614758
                Thank-you Zhigang and D.im

                i did try your (D.im) advice but it still rebooting. and i do not have a serial cable to trying Zhigang advice.
                I think this is a hardware conflict with the xen.
                this is a new HP Compaq dc7800p Convertible minitower with Intel vPro
                Intel Core Duo CPU 3.0GHz and 4 Gb DDR2/800 RAM and it supports Vertualization Technology.
                I've installed Oracle VM to a 2 or 3 year old computer and never have this reboot before.
                Thanks for your helps!
                REgards,
                Tom
                • 5. Re: Oracle VM reboot  continuously after finished installation
                  Bdepauw-Oracle
                  Check if you see this just before your laptop reboots

                  Kernel panic - not syncing: cannot execute a PAE-enabled kernel on a PAE-less CPU!

                  It's described in metalink note 468994.1
                  In short it says that Oracle VM Server is NOT supported on CPUs without Physical Address Extension (PAE) feature.
                  • 6. Re: Oracle VM reboot  continuously after finished installation
                    494282
                    Hi,

                    I am also encountering the same error. One of my nodes on VMWare dies after surviving 10-15 seconds. First time node was rebooted automatically during installation of Oracle clusterware and once node was up but it was died again before I check any system logs. When I restart it and it dies in seconds.

                    Does anyone have any idea about this? Can I get any logs without my node is up?

                    Thanks.