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bahar
Cadet
Cadet
  • 7,381 Views

Problem with RHCSA online lab machines (Probing EDD)

Hi,

I am practicing for my upcoming RHCSA exam, however, I noticed that sometimes, after finishing a lab and rebooting the machine, it is stuck at the following message "probing edd (edd=off to disable)... ok".

This happened multiple times now, specially after doing network lab using nmcli and advanced storage lab using startis and vdo.

I have no idea how to solve that, it is just stuck, I tried setting edd=off in grub menu but that didn't help and I'm afraid the same will happen during the exam.

Any idea what this is all about ?

Labels (1)
17 Replies
Maryam685
Cadet
Cadet
  • 1,621 Views

Hiya i'm beginner, doing rhcsa can anyone here help me with course details, share notes pdf files or guide a bit. Would be grateful
Chetan_Tiwary_
Moderator
Moderator
  • 1,612 Views

Hello Maryam,

Please reach out to training@redhat.com with your course query and our team will respond to you and will guide you for the course /training. 

 

Please also refer this for RHCSA ( EX200 ) :  https://www.redhat.com/en/services/training/ex200-red-hat-certified-system-administrator-rhcsa-exam

 

Thanks

AndyMcIntosh
Mission Specialist
Mission Specialist
  • 2,192 Views

Now the whole Lab Environment (RH199) is down (RH199) :-(

Edit: Engaged Red Hat Training support.

" We would like to inform that we had applied some solutions on OCP Shared Cluster, Hence request you to re-provision once and check, it should work fine after re-provisioning. "

Hosts still hang for several minutes on 'Probing EDD', but they do eventually come up now.

  • 1,485 Views

I had the same problem. Then I noticed this in the topic Resetting the Root Password:

NOTE

Prebuilt images may place multiple console= arguments to the kernel to support a wide array of implementation scenarios. Those console= arguments indicate the devices to use for console output. The caveat with rd.break is that even though the system sends the kernel messages to all the consoles, the prompt ultimately uses whichever console is given last. If you do not get your prompt, you may want to temporarily reorder the console= arguments when you edit the kernel command line from the boot loader.

I tried reordering the two console= parameters, but I still got the same problem. Only @Chetan_Tiwary_'s solution worked for me.

  • 1,208 Views

Hello, I have a problem with starting any labs and showing me this error message 

 

Mostafa1996_0-1664370322643.png

any help please 

Tracy_Baker
Starfighter Starfighter
Starfighter
  • 769 Views

@Mostafa1996 

The command you are using is a RH124 RHEL8 lab command.

If you are working in RHEL9, that command does not exist. Also, in RHEL9, the order of the command changed:

RHEL8: lab <activity> <verb>

RHEL9 lab <verb> <activity>

where <verb> is: start, grade, finish

Program Lead at Arizona's first Red Hat Academy, est. 2005
Estrella Mountain Community College
kcarne
Cadet
Cadet
  • 803 Views

Make sure you are actually doing this activity in SERVERB, not SERVERA. I haven't seen this called out anywhere in the thread at this point, but I spun my tires on this lab for an hour or so before I realized I failed to launch serverb. Hope this helps someone else 

Tracy_Baker
Starfighter Starfighter
Starfighter
  • 794 Views

There may be information that needs to be removed, such as console and / or vconsole directives (i.e.: console=tty or console=ttyS0,115200n8) -- this would be mostly true under certain virtual machine installations.

Program Lead at Arizona's first Red Hat Academy, est. 2005
Estrella Mountain Community College
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