host restarted when deploy image



  • have fog 1.2 installed on centos 6.7
    when i want to deploy an image (raw) it works but slow
    when i want to deploy multi partition ,non re-sizable the host restart
    please help


  • Developer

    I am marking this solved as I think George’s answer is excellent and should point most users the right way… Couldn’t have phrased it any better :-)


  • Moderator

    @george1421 Well that explains a whole lot… I have RAID cards that present multiple disks to the OS, and I’ve found that ONLY CentOS 7 has the right kernel parameters/modules out-of-the-box that can make it work… :-\ Fedora fails miserably at trying to use the RAID card with simple configurations like RAID 1, and RAID 0.

    I will be sure to get a real RAID card in the future when I buy one.



  • @george1421 thanks for the explaining
    appreciate
    i will try to test a non RAID disk and see


  • Moderator

    @saif said in host restarted when deploy image:

    @george1421 yes its built in RAID, i will try to boot from live linux and check
    BUT why do i need a RAID driver under windows? the FOG will make a clone for the volume and the windwos will not start to use this driver

    Sorry I should have explained my self a little better. There are 2 main types of raid controllers (generally) and one hybrid. There are hardware raid controllers, software only raid controllers, and then hybrid raid controllers.

    The more common is a hardware raid controllers where it has its own microcontroller that manages the disks. It runs its own special software and then presents the disk array to the operating system or bios as just a single disk volume. There are software raid controllers that typically function as part of the OS. You will find this type of raid controller in higher end unix systems. The software only raid controller us all done in the OS and uses the main processor to manage the disks. The last type is a hybrid raid. In that some of the disk control functions are done in hardware and some in the OS software, this kind of gives you the best of both worlds. You will get some performance acceleration with the hardware without the expense of having a dedicated raid microcontroller. The hybrid raid is managed by the OS so it requires to OS to maintain the integrity of the raid. Without the OS you have no raid functionality.

    So with the T3500 they have the hybrid raid setup that comes with a windows driver. To linux (or actually windows without the software raid driver) your raid array looks just like a just a bunch of disks (jbod). Individual disks with no real structure, and in your case since they are in a raid 5, no intelligent data because of the disk striping.

    While I can’t speak for the FOG developers, but cloning this type if disk structure is beyond the scope of the fog project.



  • i tried to boot from ubunto or centos and it didnt show the RAID volume



  • @george1421 yes its built in RAID, i will try to boot from live linux and check
    BUT why do i need a RAID driver under windows? the FOG will make a clone for the volume and the windwos will not start to use this driver
    thx



  • @Sebastian-Roth the RAID is configured and i have windows working on it
    do you mean that FOG cant deploy RAID?
    thx for reply


  • Moderator

    @Wayne-Workman said in

    Beyond that, I think that @george1421 knows about RAID in this particular model.

    If this is the built in raid controller in the T3500, that is what is known as “fake raid”. Really that is a software raid running on an intel ich9 or ich10 raid controller. This is a windows only RAID or a windows software raid. Without the windows raid driver you may be hard pressed to read this array for cloning. To linux I believe this raid controller will just present the disk array as jbod.

    It would be interesting to know if you booted a live linux distro like ubuntu desktop from CD, can it see this raid array? If so then there might be some hope to image this with fog.


  • Developer

    To me this sounds like a soft RAID thing as RAW capture and deploy seem to work. I don’t really think we can handle this in FOG. You need to create the RAID arrays by hand before deploying. Then it might work. Or just use raw image type as the soft RAID infos will be in the RAW image then.



  • @Wayne-Workman i will try now
    thx


  • Moderator

    @saif You did not re-upload AND re-download in 6 minutes using FOG 1.2.0, sorry.



  • @Wayne-Workman said in host restarted when deploy image:

    mdraid=true

    thx, i tried but still restarting


  • Moderator

    @saif Try to provide the Host Kernel Arguments: mdraid=true for the host your trying to upload from, and then re-upload. Then, put the same Host Kernel Arguments in for the target host your trying to deploy to.

    like this for both:
    0_1461102535434_fog RAID.png

    Beyond that, I think that @george1421 knows about RAID in this particular model. Might be worthwhile to see what @Tom-Elliott and @Sebastian-Roth have to say about it as well.



  • @Wayne-Workman

    thank you for reply
    the OS is windows 7 pro 64bit, computer is Dell precision T3500
    i am trying to make image for the RAID5 that contain the OS
    the FOG is just installed and this is the first host am trying to deploy
    0


  • Moderator

    We need more information.

    We need to know what OS your deploying, if its MBR or GPT disk layout, and we need to know the model of computer the image came from and the model it’s going to.

    Also - you cannot change the image type without re-uploading afterwards.


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