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How to enable SCSI in CentOS 5.x VMs

APPLIES TO:
  • Parallels Server

Resolution

To enable SCSI inside a CentOS 5.x VM, you are advised to perform the following steps:

  1. Download and install the following packages inside the VM:

    • kernel-2.6.18-194.el5.centos.plus.x86_64.rpm
    • kernel-devel-2.6.18-194.el5.centos.plus.x86_64.rpm
    • kernel-headers-2.6.18-194.el5.centos.plus.x86_64.rpm
  2. Add the record below to the "/etc/modprobe.conf" file:

     alias scsi\_hostadapter1 BusLogic
    
  3. Create a new initrd:

      mkinitrd -f -v /boot/initrd-2.6.18-194.3.1.el5.centos.plus.img 2.6.18-194.3.1.el5.centos.plus
    
  4. Change "default=0" in /boot/grub/menu.lst to "default=1":

     title CentOS (2.6.18-194.3.1.el5.centos.plus)
      root (hd0,0)
      kernel /vmlinuz-2.6.18-194.3.1.el5.centos.plus ro root=/dev/VolGroup00/LogVol00
      initrd /initrd-2.6.18-194.3.1.el5.centos.plus.img
    
  5. Reboot the VM and check the following:

     lsmod | grep BusLogic
     BusLogic 58369 3
     scsi_mod 196953 5 scsi_dh,sg,BusLogic,libata,sd_mod
    

    After completing the steps described above, the VM will be able to see the disk and will allow the partitioning of SCSI disks.




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