Re: [CentOS] Latest 9-Stream ISO fails to boot after install

[Jack Bailey via CentOS]

On 8/1/23 14:06, Robby Callicotte via CentOS wrote:

Hello,

I was performing a test install of CentOS Stream 9 using the latest[1]
available dvd iso from the mirror[2].

I manually select "minimal install" from the selectable packages.  The install
seems to go smoothly.  Upon reboot I am greeted with:

[FAILED] Failed to start Switch Root

Further examination of the switch-root service shows the following:

Failed to switch root: Specified switch root path '/sysroot' does not seem to
be an OS tree.  os-release file is missing.

Booting into rescue media shows that the os-release file(s) actually do exist:

ls -l /etc/os-release
lwrxwrxwrx.  1 root root 21 Apr   6 08:27 /etc/os-release  ->  ../usr/lib/os-
release

ls -l /usr/lib/os-release
-rw-r--r--.  1 root root 391 Apr   6 08:27 /usr/lib/os-release


Is there anything I can do to help?  What is the best way to address this
issue -- open a bugzilla or something else?


[1] - 
https://mirror.stream.centos.org/9-stream/BaseOS/x86_64/iso/CentOS-Stream-9-latest-x86_64-dvd1.iso
[2] - https://mirror.stream.centos.org/9-stream/BaseOS/x86_64/iso/

Regards,

-- Robby Callicotte
FAS: rcallicotte



I can confirm this, though I'm using diskimage-builder from OpenStack 
and getting the same error.  Imported images do not boot and leave the 
console at an emergency prompt.  First noticed July30th.


Jack

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[CentOS] CentOS cloud images, cloud-init

[Jack Bailey via CentOS]

Hello List,

At this link, https://cloud.centos.org/altarch/7/images/ I'm trying to 
use the latest image CentOS-7-x86_64-GenericCloud.qcow2c


I cannot log in to the VM because cloud-init did not run.  vSphere says 
open-vm-tools is not running.


After having broken into the VM, I see open-vm-tools is installed but 
not enabled.  Does anyone know why/why not?  I could be mistaken, but 
I'm thinking maybe that's why cloud-init doesn't run.


Jack

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[CentOS] rpcbind fails to start with IPv6 disabled

[Jack Bailey via CentOS]

Hello,

Does anyone know if this is still an issue?

https://access.redhat.com/solutions/2798411

rpcbind fails to start with IPv6 disabled - Red Hat Customer Portal
On RHEL7.3 and later with IPv6 disabled, rpcbind fails to start...

Thanks,
Jack
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Re: [CentOS] Troubles expanding file system.

[Jack Bailey via CentOS]

On 9/2/2021 10:28 PM, Simon Matter wrote:

There is one thing that I couldn't find a solution for no matter what I
tried: When the root/boot disk of the guest is being resized, it's not
possible to modify and reread the new partition table without reboot.


I'm curious to know if this works for you.  Suppose /dev/sda is the boot 
disk.  Determine the highest number primary partition in use on the 
drive.  Let's say it's 3.


# growpart /dev/sda 3

In addition, you might try

# printf "F\n" | parted ---pretend-input-tty -l

I have these in an Ansible playbook for creating CentOS 7 and Ubuntu 
Focal VMs.  They require cloud-int (for growpart) and gdisk.  Note: 
growpart doesn't work if the highest partition is not a primary 
partition, i.e., greater than 4.


Jack
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Re: [CentOS] I'm looking forward to the future of CentOS Stream

[Jack Bailey via CentOS]

I'm just trying to determine whether you were making the argument you 
intended to, because you are literally suggesting that the majority is 
silent, and the people who are silent are the ones that are happy with 
something.


Silence doesn't confer anything. People can be displeased, cautiously 
optimistic, and silent, all at the same time.


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Re: [CentOS] Upgrade OpenSSH version to the latest stable version on CentOS Linux release 7.9.2009 (Core).

[Jack Bailey via CentOS]

On 2020-11-30 21:48, Peter wrote:

On 1/12/20 4:04 pm, Kaushal Shriyan wrote:

I am running CentOS Linux release 7.9.2009 (Core). Is there a way to
upgrade OpenSSH version openssh-7.4p1-21.el7.x86_64 to the latest stable
version openssh-server 8.4 using yum repositories or rpm binaries?


No, 7.4p1-21 is the most recent up to date version in CentOS 7. See 
https://access.redhat.com/security/updates/backporting/ for more info.


hpn-ssh might be an option. https://sourceforge.net/projects/hpnssh/

My experience with it on CentOS and Ubuntu has been very good.

Jack

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Re: [CentOS] Problems with x2go

[Jack Bailey via CentOS]

On 9/15/2020 4:24 AM, Stefano Simonucci wrote:

I have installed x2goserver on a Centos8 server.

Yesterday, after the installation I was able to connect by means of
x2go. Today I get the following error ( /var/log/messages)

/usr/bin/x2gostartagent[2677]: no free display number available, cannot
start new session.

Has anyone had the same problem?



This is not the answer to your question, but if this is a new install 
and not an existing installation, consider NoMachine 
. It's free and so much better than x2go 
it's hard to even compare the two.


Jack

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Re: [CentOS] rsync upgrade

[Jack Bailey via CentOS]

On 2020-08-06 08:45, J Martin Rushton via CentOS wrote:

You'll need to upgrade to CentOS8.

C7 is at rsync 3.1.2-10, and will not go above 3.1.2 ever.

C8.2 is at 3.1.3-7, C8 will always be on 3.1.3

Martin


Another option is to build rsync from source, which is what I did to try 
out the zstd compression.


centos7$ rsync --version
rsync  version 3.2.2  protocol version 31
Copyright (C) 1996-2020 by Andrew Tridgell, Wayne Davison, and others.
Web site: https://rsync.samba.org/
Capabilities:
    64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
    socketpairs, hardlinks, symlinks, IPv6, atimes, batchfiles, inplace,
    append, no ACLs, xattrs, optional protect-args, iconv, symtimes, 
prealloc

Optimizations:
    no SIMD, asm, openssl-crypto
Checksum list:
    xxh64 (xxhash) md5 md4 none
Compress list:
    zstd lz4 zlibx zlib none



On 06/08/2020 16:40, Christopher Wensink wrote:

Can anyone tell me the repository to use to upgrade to a version of
rsync later than 3.1.2?

Chris





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Re: [CentOS] CentOS 8.2 corrupt pxeboot kernel

[Jack Bailey via CentOS]

On 2020-06-17 08:46, isdtor wrote:

Attempting to PXE boot from the BaseOS/x86_64/kickstart/images/pxeboot/ files 
results in repeating messages

Invalid or corrupt kernel image

eventually changing to

Could not find kernel image: centos8.2.x86_64/vmlinuz

I downloaded the files again, from a different mirror, and they are all the 
same. Wiped the files and recreated /tftpboot/linux-install/centos8.2.x86_64/. 
No dice.

First mirror

89251241a484010b98280ce00b3a3763  os/images/pxeboot/initrd.img
9261bb24add6bb4ff9ef6aaf348aaf35  os/images/pxeboot/vmlinuz

Second mirror

89251241a484010b98280ce00b3a3763  os/images/pxeboot/initrd.img
89251241a484010b98280ce00b3a3763  kickstart/images/pxeboot/initrd.img

9261bb24add6bb4ff9ef6aaf348aaf35  os/images/pxeboot/vmlinuz
9261bb24add6bb4ff9ef6aaf348aaf35  kickstart/images/pxeboot/vmlinuz



pxe is working for me in this test virtualbox build.

$ md5sum initrd.img vmlinuz
89251241a484010b98280ce00b3a3763  initrd.img
9261bb24add6bb4ff9ef6aaf348aaf35  vmlinuz

( yum updated )

[centos@localhost ~]$ uname -a
Linux localhost.localdomain 4.18.0-193.6.3.el8_2.x86_64 #1 SMP Wed Jun 
10 11:09:32 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux


[centos@localhost ~]$ cat /etc/redhat-release
CentOS Linux release 8.2.2004 (Core)

Best regards,
Jack

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