Hi all, I just updated the Satellite Basics lab to 6.16. If you're interested in trying it out, click here.

More info on what's new, here.

Update - I can't reproduce this any more. Maybe the problem was on the repo side rather than the client side...

I'm building container images using the ubi images. This is being done on an unsubscribed host as I'm not using any content outside of the base OS and appstream repositories. In fact, the host is a public GitHub actions runner.

My build process pulls down the ubi9/ubi-micro image, copies its content to /mnt and then uses dnf --installroot=/mnt to install packages into it. Since RHEL 9.5 was released, this fails with:

Error: There are no enabled repositories in "/mnt/etc/yum.repos.d", "/mnt/etc/yum/repos.d", "/mnt/etc/distro.repos.d".

I've worked around this by pulling in ubi9/ubi-micro:9.4 until I figure out what's going on.

I wonder if there's a change in 9.5 that has broken DNF inside containers when run on unsubscribed machines?

Here's the Containerfile and the build logs showing the error message in context.

Here's the Containerfile with the workaround which fixes the build.

I started at RH earlier this year, and I currently work 2 days a week in office at the Raleigh tower and 3 WFH. My spouse and I are having our first child next year and I'm wondering about RH's general attitude toward new parents and childcare. Currently I feel like my manager will be understanding if I say that I will be taking care of a baby on my WFH days, and I feel confident that I can get my work done based on my workload thus far and my role's flexibility.

However, I wanted to do a general vibe check as to other people's experiences or to see if RH has any specific attitude/policies about new parents with regard to WFH or scheduling. Obviously I plan to talk to my manager about all this, but just wanted to get some Red Hatter input. Searching the source didn't yield much. Thanks in advance!

Hi all, can I please have one of those discount codes for ex200. 550 euro is a bit over a my budget. Thank you much love

I'm actually on fedora but i think this question can be applicable on this sub.

I installed the fedora security lab package last time and it came with John the Ripper tool but doesn't even have access to rar2john or even zip2john for hash extraction.

So what i did is just installed john on github jumbo but only installed it on my local folder so I literally have to navigate all throughout series of folder to make the tool run.

Thing is do you guys have any idea how can i intialize john wherever i am on the terminal without navigating throughout series of folders?

Hello, have a host running RHEL 8.9, and an NVIDIA Tesla T4 graphics card installed in the host. I was wondering if the T4 driver for RHEL 8.8 or 8.10 should work with my RHEL 8.9 host? It seems that there isn’t an exact RHEL 8.9-compatible driver available so I was hoping I could use one of these two but it doesn’t seem to work as the kernel modules field doesn’t get set to the NVIDIA driver. Any ideas?

Hello! I am a new hire and was wondering how the onboarding process is at RedHat? I've seen old responses but wanted to be informed of the current experiences anyone has had. I accepted my offer letter and completed the documents on the portal. Do I just show up for on my start date?

We have been running automount with NFS flawlessly with no issues from RHEL 5 to 8. In 9, we will get hung mounts or mounts that will work and then stop working all of a sudden causing issues with the boxes. Anyone experience this?

Does any one successfully installed AAP 2.5 on RHEL 9.4? I failed on redis daemon starting all the time and couldn’t figure out. But eventually succeeded on RHEL 9.2. Installation type: containerized installation, all-in-one. It is now running well on 9.2.

How do we set grub2 command line options in RHEL10? According to:

Chapter 4. New features | Red Hat Product Documentation

This indicates since RHEL 9.3, that GRUB_CMDLINE_LINUX in /etc/default/grub are no longer honored by default.

Formerly we did this in RHEL8 and early RHEL9:

cat >> /etc/default/grub<<-EOF

GRUB_GFXMODE=640x480x16

GRUB_GFXPAYLOAD_LINUX=640x480x16

GRUB_CMDLINE_LINUX_DEFAULT="nomodeset vga=785"

EOF

grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg

chmod og-rwx /boot/efi/EFI/redhat/grub.cfg

Now it looks like we should do this:

cat >> /etc/default/grub<<-EOF

GRUB_GFXMODE=640x480x16

GRUB_GFXPAYLOAD_LINUX=640x480x16

GRUB_CMDLINE_LINUX_DEFAULT="nomodeset vga=785"

GRUB_ENABLE_BLSCFG=false

EOF

grub2-mkconfig -o /boot/grub2/grub.cfg

However, we notice it does not update the /boot/loader/entries/*.conf entries.

1. how do we update these BLS entries to add "nomodeset vga=785"?

2. when we reboot, now /proc/cmdline has "nomodeset vga=785". Why?

Thank you.

I have Physical server and Root partition is 100% full as seen in picture, I want yo extend my root partition but I am unable to do it can anyone help me how to do it?

I've installed Satellite 6.16 on this RHEL 9.5 server, but during the installation I noticed a few errors:

[ERROR ] [configure] Failed to read keystore '/etc/candlepin/certs/keystore'
[ERROR ] [configure] Failed to add certificate to keystore: Execution of '/bin/keytool -importkeystore -noprompt -srckeystore /tmp/temp_keystore20241113-21378-vqedzk -srcstorepass:file /etc/candlepin/certs/keystore_password-file -destkeystore /etc/candlepin/certs/keystore -deststorepass:file /etc/candlepin/certs/keystore_password-file -srcalias tomcat -destalias tomcat -J-Dcom.redhat.fips=false' returned 1: Importing keystore /tmp/temp_keystore20241113-21378-vqedzk to /etc/candlepin/certs/keystore...[ERROR ] [configure] keytool error: java.lang.Exception: Keystore file exists, but is empty: /etc/candlepin/certs/keystore

Satellite still installed successfully, and I can access the GUI through my web browser. The issue is I cannot go to the Lifecycle Environment because "The backend service [ Candlepin ] is unreachable.

The result of 'hammer ping':

database:
    Status:          ok
    Server Response: Duration: 0ms
cache:
    servers:
     1) Status:          ok
        Server Response: Duration: 0ms
candlepin:
    Status:          FAIL
    Server Response: Message: Failed to open TCP connection to localhost:23443 (Connection refused - connect(2) for "localhost" port 23443)
candlepin_auth:
    Status:          FAIL
    Server Response: Message: A backend service [ Candlepin ] is unreachable
candlepin_events:
    Status:          FAIL
    message:         Not running
    Server Response: Duration: 0ms
katello_events:
    Status:          ok
    message:         0 Processed, 0 Failed
    Server Response: Duration: 1ms
pulp3:
    Status:          ok
    Server Response: Duration: 367ms
pulp3_content:
    Status:          ok
    Server Response: Duration: 260ms
foreman_tasks:
    Status:          ok
    Server Response: Duration: 5ms

For the sake of troubleshooting, I deleted /etc/candlepin/certs/keystore. When running satellite-installer --scenario satellite again, it tries to generate the keystore file, but fails:

[ERROR ] [configure] Failed to generate new truststore with temporary entry: Execution of '/bin/keytool -genkey -storetype pkcs12 -keystore /etc/candlepin/certs/truststore -storepass:file /etc/candlepin/certs/truststore_password-file -alias temporary-entry -dname CN=temporary-entry -J-Dcom.redhat.fips=false' returned 1: keytool error: java.lang.Exception: The -keyalg option must be specified.

I tried to generate the key with -keyalg rsa flag and then ran satellite-installer, but that left me with this hammer ping result:

database:
    Status:          ok
    Server Response: Duration: 0ms
cache:
    servers:
     1) Status:          ok
        Server Response: Duration: 0ms
candlepin:
    Status:          FAIL
    Server Response: Message: SSL_connect returned=1 errno=0 state=error: certificate verify failed (self-signed certificate)
candlepin_auth:
    Status:          FAIL
    Server Response: Message: Katello::Errors::CandlepinNotRunning
candlepin_events:
    Status:          ok
    message:         0 Processed, 0 Failed
    Server Response: Duration: 0ms
katello_events:
    Status:          ok
    message:         0 Processed, 0 Failed
    Server Response: Duration: 1ms
pulp3:
    Status:          ok
    Server Response: Duration: 82ms
pulp3_content:
    Status:          ok
    Server Response: Duration: 88ms
foreman_tasks:
    Status:          ok
    Server Response: Duration: 6ms

Any help is appreciated on troubleshooting this issue. Thanks in advance!

EDIT-

SOLVED: by the Red Hat support engineers. A huge shout out to their support team because it was an immediate, straight forward fix.

I created a ticket, they supplied a keytool.patch file and the commands to apply it.

Indeed, if you have questions/doubts/fear about LifeCycle Environment, Content View, Composite Content View, and or all of them together, this video is for you!

I hope you enjoy it!

https://www.youtube.com/watch?v=gWyS1zpnRAY

hello all.

I a moving our gateway server from windows to redhat 9. our engineers have used securecrt for years and really like it on windows. Unfortunately, it is unavailable on redhat. Does anyone know of a secureCRT alternative for redhat? I have putty on there but it is pretty much universally disliked by our engineers.

thanks in advance!

DS

“There’s no talent here. This is hard work. This is an obsession. Talent does not exist, we are all equals as human beings. You could be anyone if you put in the time. You will reach the top, and that’s that. I am not talented, I am obsessed.” -Conor McGregor

Hi, took my exam today. I was really nervous up until the exam and I'm finally relieved that I can relax for a while now.

Wanted the share my preparation experience.

I've been a sysadmin for 5 years, focusing on rhel for the last 3. But most of our infrastructure is horribly configured. That was the most important part for me, while studying for the exam; I've learned more about RHEL than my last 5 years.

I started studying around 3 weeks ago. I couldn't study during work hours, but half of my free time was dedicated to studying.

I've considered few alternative sources. Decided on watching Sander van Vugt's video courses. They were great in my opinion. But I only spent a week on courses.

On hyperv, I've created a lab environment; then a powershell script that deletes and recreates the lab environment. For all the exam objectives, I've asked AI to prepare me tasks (harder and harder). If I got stuck and man pages didn't help, then I asked AI to explain.

After 2 weeks of constant labs; I don't even think for most common red hat tasks, I just write them automatically. I finally took my exam today and after an hour got the mail saying 300.

I'm incredibly happy not only because of the achivement but also my company will give me 15% raise because of this cert 😈

Hi all,

So apparently Red Hat has removed all of their announcements from their website https://access.redhat.com/announcements

Am I the only one that's quite annoyed by this ? There used to be drove of informations in those pages and now they're simply gone ...

Any link pointing to an announcement on this subreddit is also broken, the only way to check out the information would be to hope that the Wayback machine has cached the page, which is less than ideal.

So I'm quite new at working on Linux systems. I've been working on installing

Enterprise Manager Cloud Control 13.5Enterprise Manager Cloud Control 13.5, but the guides I've been finding online seem to assume a lot of prior knowledge. Can anyone point me in a direction of a good guide for it?

I was wondering what tips, tricks, or apps you all use to get better battery life out of your laptops? I used Auto CpuFreq on Ubuntu but I am not sure what people tend to go to when running RHEL.

I have a Red Hat account with two free subscriptions - Red Hat Developer Subscription for Individuals and Red Hat Beta access. Both are active. But I just cannot register my system when I'm in my Red Hat Linux machine. It says I'm not a member of any organization. I've tried basic troubleshooting steps like this:

subscription-manager remove --all
subscription-manager unregister
subscription-manager clean
subscription-manager register   ## which then prompts for the username/pass
subscription-manager register --username=username --password='s3cr3tp4ssw0rd'                        

But no matter what I do, it says I cannot register with any registration. I know this is really noobish but I've tried going through similar threads and making sure my account is set up, but nothing is working. I'm really really new to Linux but I'm trying to get my hands as much as I can so I can do yum install -y bash-completion

because whenever I hit tab, it's not autocompleting, along with other little features.

Hello everyone,

I’m currently working as an SRE in IT, focusing on automation with Ansible and OpenShift to ensure system compliance with internal infosec guidelines and streamline various operational tasks.

My background is in software engineering, and I’m eager to grow my coding skills and gain more experience working with products. I’m considering a transition from SRE to a more development-oriented role, but I’m unsure how to go about it or if it’s even feasible. My hands-on development experience is limited to some personal projects, a few simple PRs, and an internship I did several years ago.

I came across this opportunity: Automation Engineer - Connectivity Link at Red Hat, and I’m thinking it might be a good stepping stone. In the long run, it could help me pivot into a development role.

I’d love to hear your thoughts. Thank you!

I am planning to take the AI267 certification in December 2024, and it is currently running in v2.8. However, I noticed the RedHat OpenShift AI v2.9 has some significant changes from v2.8, for example, it will switch the engine from Tekton to Argo Workflows. In my personal experience, I don't like the Tekton workflow, and I had previous experience with Argo. I am wondering when will the v2.9 course and exam be coming out? Should I wait it out or should I just go for it in December as I have planned?

Thanks for any feedback in advance

Hi

Im implementing a RHEL immutable for veeam for the first time. The OS came with a brand new server and the customer told me that he has 3 year suscription. But he has not recieved any specific license for it.

The seller told me that the licenses are digital and they are on the DELL digital locked portal. So the user has registered on the portal and also he has registerd the product, however he still doesnt have recived any license... He told me that the portal neither has any option to download a license file.

So my main question now is how is it supposed to be the RHEL license format? is it a file? is it just a code?

thanks

Yes, I know, "wait for the official announcement" :)

I've just updated a test VM from 9.4 to 9.5, no ISO image available yet.

As title implied, I just want to ask if sysctl tunable parameter really necessary; with aim for minimum network latency? As far as I do research (kernel-doc, RedHat knowledgebase, Redhat bugzilla, vendor manual such as Intel ADQ guide,...), the common way for that is usually optimize polling parameters(epoll, busy_read,...), and increase approriate L4 buffer size.

I use tuned profile network-latency and add some parameter (like port range, enable feature) for ping rtt experiment in some real physical server and see the different is...dynamic. Sometimes lower latency, sometime higher latency than before configure. I dont think because of workload type, that is just ping bytes flooding. That is very confuse.

I really want to know opinion of people. Thanks much!

Has anyone used rhcsa.guru preparing for the RHCSA exam? If so, what were your thoughts as to its efficacy for exam prep?

Thanks!

Hey... I was wondering to get the Openshift certification(EX380) as my first certification, and like a said i dont have the RHCSA yet. Current Im working with Openshift, someone can give me a recommendention? Start with the EX380 or get the RHCSA first?

And I have a voucher for the Devops engeneering of AWS.... But i dont work with it.. Im really confuse for what certification do first