And ... when using the 18.04.2 default diskless image, the system hangs
about 5-6 seconds after boot.  It doesn't even provide the Alt-F2 screen
for using the shell.

Sigh ...

Calvin Dodge

On Tue, Aug 3, 2021 at 5:14 PM Calvin Dodge <caldo...@gmail.com> wrote:

> We had to let this sit for a while due to higher priority items.
>
> After the deployment stops, we can login to the shell in the console
> (Alt-F2).  It appears at least one issue is that the initrd image isn't set
> up correctly, because megaraid_sas isn't loaded, and "modprobe
> megaraid_sas" fails with "module not found".  The modprobe DOES work after
> running "depmod -a", but I would think that is something that should have
> been done before creating the image. I have no clue on how to proceed after
> the disk is recognized.
>
> The same thing happens with Ubuntu 18.04.2.  At present I'm trying to
> create a diskless image for 18.04.2.  During this phase I've gotten many
> messages like "ldd: ./linux-vdso.so.1: No such file or directory", but
> genimage appears to be doing something.  I'll try packimage, then
> deploying.  At present, I think Ubuntu 18.04 is very poorly supported by
> xCAT.
>
> Sincerely,
>
> Calvin Dodge
>
>
>
> On Wed, Mar 17, 2021 at 8:30 AM Nathan A Besaw <bes...@us.ibm.com> wrote:
>
>> Have you made any progress on this problem or are you still stuck?
>>
>> Can you deploy the node with a diskless image based on the same OS and
>> see the disks from within the booted OS?
>>
>> The newest version of Ubuntu 18 that xCAT officially supports is 18.04.2.
>> Several xCAT users have moved forward to 18.04.5, but
>> there appear to be some issues with xCAT and Ubuntu 18.04.5 that are not
>> well understood.
>>
>> I don't have access to this combination of hardware and OS, perhaps other
>> members of the list have some experience with this combination.
>>
>> [image: Inactive hide details for Calvin Dodge ---03/12/2021 06:41:04
>> PM---We are trying to deploy C6420 nodes with a diskfull image.]Calvin
>> Dodge ---03/12/2021 06:41:04 PM---We are trying to deploy C6420 nodes with
>> a diskfull image. The deployment hangs about about 9.5 sec
>>
>> From: Calvin Dodge <caldo...@gmail.com>
>> To: xcat-user@lists.sourceforge.net
>> Date: 03/12/2021 06:41 PM
>> Subject: [EXTERNAL] [xcat-user] Problem deploying Dell C6420 from Ubuntu
>> 18.04.05
>> ------------------------------
>>
>>
>>
>> We are trying to deploy C6420 nodes with a diskfull image.  The
>> deployment hangs about about 9.5 seconds after the kernel recognizes
>> the network and USB devices.
>>
>> Installment details:  Head node was deployed using the live server ISO
>> ubuntu-18.04.5-live-server-amd64.iso.
>> The xcat-go install process created the /install/OS folder using that
>> ISO.  But we could not nodeset a node with that osimage name until we
>> ran copycds manually with the regular server ISO
>> ubuntu-18.04.5-server-amd64.iso.
>>
>> We've seen other strangenesses, like xCAT looking for a folder named
>> "ubuntu-" when we tried to run genimage to create a diskless image
>>
>> Meanwhile, the nodes are using PERC controllers for storage, which
>> uses the megaraid_sas kernel module.  When we unpack the initrd used
>> in the initial PXE load, we don't find the kernel module there.  Could
>> that be the source of our deployment hang?  We see instructions on
>> adding modules, but they don't appear to be relevant, because (1) Dell
>> doesn't seem to provide a driver disk for the initial kernel
>> (5.4.0-22), and (2) the "use RPM" approach is unlikely to work with a
>> distribution that doesn't use RPMs.
>>
>> We CAN install Ubuntu on the node using the server ISO, so the
>> necessary drivers are present there, at least.  So it seems to be an
>> xCAT issue.
>>
>> Has anyone else encountered this issue?  If not, how can we diagnose
>> it, beyond adding (an as yet unfound) megaraid_sas kernel module to
>> the initial PXE initrd?
>>
>> Calvin Dodge
>> [attachment "cat_node_install_hung[33146].PNG" deleted by Nathan A
>> Besaw/Poughkeepsie/IBM] _______________________________________________
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