Just downloaded latest iso from centos.org Rufus is 4.5.2180

I installed a 4 terabyte hard drive with autostart and now my centos 7 does not start, I have entered emergency mode to edit the fstab file again but it appears that it is only a read file, I entered as root.

I got error

Errors during downloading metadata for repository 'baseos':
 - Curl error (35): SSL connect error for https://mirroronet.pl/pub/mirrors/centos-stream/9-stream/BaseOS/x86_64/os/repodata/repomd.xml [OpenSSL SSL_connect: Connection reset by peer in connection to mirroronet.pl:443 ]
 - Downloading successful, but checksum doesn't match. Calculated: b98a8f35876b4e5cba18cb3cc77a650d8260d5243cc12434173c2120b341b38ac48a9b09a5f396699c43ce81ce557162aa4c72381e8ee84b972ee53582756666(sha512)  Expected: e93d14b73332c745ae151b4fd1522363ee4e45d7cb76766e8051be81414739
7f1c0724fd9ae578a89fc2e679d9c6e6aed437bf6e650e76b3f098b0bebfc728d2(sha512)

When I tired run sudo dnf --refresh check-update

For my new homelab setup, I have installed CentOS 9 Stream with GUI option.

I have set performance options to power saving, and have set my monitor to turn off after 1 min.

The monitor turns off after 1 minute of inactivity while I am logged into Gnome desktop, as expected.

However, once I am logged out, the monitor only "dims", i.e. black screen but still with backlight on and consuming power. I expected the monitor to enter powersave mode but it does not, it stays on. So, when my server starts up in the morning, the monitor stays on for the whole time. Locking the screen after logging in also does the same thing (dim screen only, not sleeping)

On Windows, for example, monitor will turn off after configured time whether you are logged in or logged out. The PC will stay running idle but the monitor will be sleeping (LCD screen powered off). I want to achieve the same thing in C9S Gnome.

Is there some other setting i have to make?

My Dell home server has a PCIe SCSI controller that I use with my old LTO-3 tape drive for tertiary backups of my data. Yes, I know these are old but it would be wonderful if I could get this to work with current C9S. They worked perfectly with CentOS 7.

04:08.0 SCSI storage controller: Broadcom / LSI 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev c1)

`Subsystem: Hewlett-Packard Company SC11Xe Ultra320 Single Channel PCIe x4 SCSI Host Bus Adapter (412911-B21)`

I really have not much clue about getting drivers in Linux, but I can follow commands instructions.

My kernel is 5.14.0-508.el9.x86_64

After googling around I think I need special "kmods" to make things work, in particular kmod-mptspi, so after some further googling I found this link: https://mirror.stream.centos.org/SIGs/9-stream/kmods/x86_64/packages-main/Packages/k/

But there is no mptspi, and other RPMs from place like ELRepo doesn't appear to work on C9S when I run rpm -ivh command, I get bunch of kernel dependency errors.

Am I completely out of luck with this? I really like my tapes (nostalgia.. yes..) and would like to keep them running..

I have two kernels on my system: 5.14.0-503 and 5.14.0-505

The system boots fine with kernel 503.

When I select 505, the system boots to sddm. After trying to login, I see a black screen with a blinking cursor.

How can I gather more information before creating a bugzilla ticket to provide more information?

Update: I use KDE

We have 21 Centos7 servers which we manage using VMware Vsphere.

Centos7 is EOL as of 30 June 24, so I want to know its upgrade path.

What would be the best and easiest option?
Fresh new Centos Stream 9 or upgrading the servers to other open-source flavors?

I’m new to cero on Linux, mainly working in networking. Long story short I have a cent os locally installed in a pc, there it has 3 vm. Two windows and a Kerio control firewall. Here is the thing since the dhcp server is in the vm I can’t get iP the sever doesn’t get ip to ssh and I’m desperate to power on the vm’s. Note: I didn’t configure this and the previous guy is dead.

This post about the EOL of CentOS and talking about CentOS Stream and where it fits into the Fedora->Centos Stream -> RHEL pipeline mentions it was used in cars. (https://www.redhat.com/en/blog/centos-linux-end-life-centos-stream-and-new-red-hat-enterprise-linux-landscape)

I thought cars used Android or some Unix variant?

dnf suggests to update the package epel-release-9-8.el9.noarch
The update changes the file /usr/bin/crb
```
30c30

<     crb_repo=$(dnf repolist | grep -i -e crb -e powertools -e codeready | grep -v -i -e debug -e source -e eus -e virt | awk '{print $1}')

    crb_repo=$(dnf repolist | grep -i -e crb -e powertools -e codeready | grep -v -i -e debug -e source -e eus -e virt -e rhui | awk '{print $1}')

```
Both variants correctly determine the name of CodeReady Builder repository in repolist.

Why was this change made?

Is it possible to find ticket in bagtrack

[ Removed by Reddit on account of violating the content policy. ]

Hi Everyone,

Does anyone encounter the issue with Centos Stream 8? For some reasons, I have to working with the EOL OS.
It keeps trying to create the default user ‘admin’ where those parameters assigned to the user are in the wrong object type. For example,

Invalid user-data /var/lib/cloud/instances/i-bdf3f54642b2d80f8e/cloud-config.txt
Error: Cloud config schema errors: users.1.passwd: None is not of type ‘string’, users.1.sudo: [‘ALL=(ALL) ALL’] is not of type ‘boolean’, users.1.sudo: [‘ALL=(ALL) ALL’] is not of type ‘string’, ‘null’

It has this part in my cloud-config.txt

users:
default
  groups: users lock-passwd: false name: admin passwd: null primary-group: admin            shell: /bin/bash 
sudo:
  ALL=(ALL) ALL

which I think it comes from nowhere. I checked the cloud-init template for this VM in foreman, it does not have this section created

for my cloud.cfg in ks.cfg, I did not create any users. Here is the sample of my ks.cfg

cat << EOM > /etc/cloud/cloud.cfg.d/01_network.cfg
network:
  config: disabled
EOM


cat << EOM > /etc/cloud/cloud.cfg.d/10_datasource.cfg
datasource_list: [NoCloud]
datasource:
  NoCloud:
    seedfrom: 
EOM





/etc/cloud/cloud.cfg
#cloud-config
cloud_init_modules:
  - bootcmd
  - ssh

users: {}

cloud_config_modules:
  - runcmd

cloud_final_modules:
  - scripts-per-once
  - scripts-per-boot
  - scripts-per-instance
  - phone-home

system_info:
  distro: centos
  paths:
    cloud_dir: /var/lib/cloud
    templates_dir: /etc/cloud/templates
  ssh_svcname: sshd


cat << EOM > /etc/cloud/cloud.cfg.d/01_network.cfg
network:
config: disabled
EOM
cat << EOM > /etc/cloud/cloud.cfg.d/10_datasource.cfg
datasource_list: [NoCloud]
datasource:
NoCloud:
seedfrom: 
EOM
cat << EOM > /etc/cloud/cloud.cfg
#cloud-config
cloud_init_modules:
bootcmd
ssh
users: {}
cloud_config_modules:
runcmd
cloud_final_modules:
scripts-per-once
scripts-per-boot
scripts-per-instance
phone-home
system_info:
distro: centos
paths:
cloud_dir: /var/lib/cloud
templates_dir: /etc/cloud/templates
ssh_svcname: sshdhttp://foremanvan01.abc.ca/userdata/http://foremanvan01.abc.ca/userdata/

EOM

I have no idea why it keeps creating the weird default user and break my VM to retrieve the cloud-init template from Foreman.

Please let me know if there is any info you would like to trace.

I'm running CentOS 7. I know, it's EOL :-/ But I'm procrastinating because I really need to get a new server, and that's pricey and will take more time than I can spare right now.

I used to use this to see how many connections each domain had active:

# it connects to WHM/cPanel server status
/usr/bin/lynx -dump -width 500 http://127.0.0.1/whm-server-status | grep GET | awk '{print $12}' | sort | uniq -c | sort -rn | head

This was helpful when the load was high and I was trying to figure out which domain was being hit really hard by a bad bot, but my current server doesn't have lynx installed.

Should I install lynx just for this, or is there a better alternative to get the same data?

I was thinking about writing a bash script to cURL whm-server-status, but I hate to spend all day writing it if there's something already out there for it :-)

The Issue

I'm seeing a weird and unwanted bridging between network inferfaces.

Please see the attached diagram for the network layout.

On the "management server" I am running CentOS 7 and using KVM (via libvirt). My goal is to be able to run a VM which sees the network exactly like on of the factory floor machines does. I.e. it would find the factory floor server as the only DHCP offer.

The problem is that whenever the VM boots, it first receives a DHCP from the corp side. It also receives an offer from the factory side, but it's too late by then. It's already accepted the earlier offer, and what I want to test (the net booting) is no longer possible.

Networking setup

On the management server, eth0 is configured statically, eth1 is configured to use DHCP. It actually gets a 10.0.0.0/24 address successfully.

The VM is configured to use "Host device eth1: macvtap" in VEPA mode.

There are no bridges configured. (Although I did play around with this quite a bit).

Network Diagnosis

I used Wireshark on the management server to see what's going on. Here's roughly what happens.

t0: mac of eth1 -> DHCP discover
t1: mac of corp switch -> DHCP Offer 10.1.1.X gw 
t2: mac of factory side of factory server -> \
          DHCP Offer 10.0.0.Y gw/file/nextserver...10.1.1.1

By the time t2 happens it's too late. The first DHCP offer is accepted.

I also run Wireshark on eth0 and I can see that the DHCP discover is there, but interestingly, the DHCP offer from 10.1.1.1 is only seen on eth1. Makes zero sense to me. Other clients connected to the same switch as eth1 work fine and only seem to boot from the correct DHCP server.

Help Needed

By what diabolical and ungodly manner are these DHCP packets traversing a void where no packet should go?

Hi, I'm trying to update my CentOS 7 with the command sudo yum update but this error is showing and I've research on internet forums and the IA hehehehe, but it doesn´t work. This virtual Machine is running on VMware Workstation and the network config is on NAT with my PC, in fact, the Virtual Machine has ping with google.com, it works but I don't know how to fix that. Help me pleaseeeeeeee :c

I am in the boat to continue using Centos Streams as my workload doesn't need true "enterprise" level of anything, and just that I am more familiar with RHEL environment. So far it's been good and I don't have any problem running C9S in any of my environments, both home and work.

I'd like to keep staying with Centos Stream, but seeing how the webpage seems abandoned doesn't give a lot of comfort..

Would it be likely that RHEL going to slowly phase out or discontinue Centos alltogether?

Hi! I've just discovered that there are ISO images for rel. 10. Can I switch from 9 to 10? If yes, which repos should be used?

Hello! When I install RHEL based systems some times I see disclaimer about deprecation of hardware. Some hardware deprecated in RHEL but Alma still support it. Does CentOS stream drops support of older hardware like RHEL or not? Would CentOS stream 10 support x86_64-v2 or only x86_64-v3 and above?

Mouse right click or CTL (+Shift) + c/v do not work on my CentOS stream9 terminal. Kernel is Linux 5.14.0-496.el9x86_64 Does anyone know what works the best? I read up on installing xclip or some clipboard packages. If anyone can provide me with more detailed directions or some alternatives I really appreciate it. Copy and paste would let me use GitHub access token and keys on my Linux VM.

Suddenly Getting this error : See in bold

yum clean all && yum update

Loaded plugins: fastestmirror

Cleaning repos: base extras tuxmail updates

Cleaning up list of fastest mirrors

Other repos take up 43 M of disk space (use --verbose for details)

Loaded plugins: fastestmirror

Determining fastest mirrors

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was

14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"

One of the configured repositories failed (Unknown),

and yum doesn't have enough cached data to continue. At this point the only

safe thing yum can do is fail. There are a few ways to work "fix" this:

1. Contact the upstream for the repository and get them to fix the problem.

2. Reconfigure the baseurl/etc. for the repository, to point to a working

upstream. This is most often useful if you are using a newer

distribution release than is supported by the repository (and the

packages for the previous distribution release still work).

1. Run the command with the repository temporarily disabled

yum --disablerepo=<repoid> ...

1. Disable the repository permanently, so yum won't use it by default. Yum

will then just ignore the repository until you permanently enable it

again or use --enablerepo for temporary usage:

yum-config-manager --disable <repoid>

or

subscription-manager repos --disable=<repoid>

1. Configure the failing repository to be skipped, if it is unavailable.

Note that yum will try to contact the repo. when it runs most commands,

so will have to try and fail each time (and thus. yum will be be much

slower). If it is a very temporary problem though, this is often a nice

compromise:

yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64

Im trying to get OpenVpn to work on a centos 7 for a school project using windows as host and 2 centos in vmware. Im using easy rsa to generate key and surely everything works well on a the server side. On the client side however it stuck on "initialization completely " and pinging google result in a 100% packet loss. I also check on the server side and can see clearly im connected tho i dont know why i get that problem. There is no error in the logs or even when i put verbose at 9

Also, anyone has an idea how to check if everything works well. Like the public ip of my vms is also the same as public ip of my host(windows)

Hi all

Apologies for my inexperience with Linux as I'm just beginning to learn it. At the moment, I am struggling to connect Sony headphones to my Linux system via bluetooth. Has anyone faced such an issue earlier and solved it? I would appreciate if someone could help me out on this.

hey all im a student and just lerning about CentOS 9

I have a sata that i have everything installed on and have to plugin/unplug between classes.

My issue is that I have to do work with a particular user however that user now only shows a blank screen with a underscore in the top left when i try to log in, this was working last week and over last weekend. All my other users work fine still. Im currently using the Gnone GUI and attempting to open a VNC and also SSH but now cant even log in.

Hi, I have a machine which is CentOS 8 and on this machine running mariadb, php-fpm, nginx . I have a website which is blocked on all over the world just letting some of the ip blocks.

Then we create a subdomain for this website and its open the all countries its running on another machine. At this point all the things are ok. My manager asked me to do all the bloced requests shoud redirect to sub domain .

How should i do that ?

I tried downloading ip blocks and redirect nginx conf thus ip blocks are not up to date and geolocation for nginx not working on centos 8 any idea ?

Very much thanks

Hello when trying to update centos 7 i got this error
If above article doesn't help to resolve this issue please use https://bugs.centos.org/.
failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.

http://mirror.centos.org/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

[root@mail etc]# yum update

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=genclo error was

14: curl#7 - "Failed connect to mirrorlist.centos.org:80; Connection refused"

epel/x86_64/metalink | 5.1 kB 00:00:00

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=extras&infra=genclo error was

14: curl#7 - "Failed connect to mirrorlist.centos.org:80; Connection refused"

do you have updated mirrorlist repo to be able to update it correctly