Re: [CentOS] Where can I find more information on the recent update to the 4.18.0-373 kernel

2022-04-19 Thread Joshua Kramer
I'm not sure how much freedom you have with your setup, but you could
always try to use the elrepo-ml or elrepo-lt kernels.  The elrepo-ml kernel
follows the published version pretty closely, so for example right now I'm
running 5.17.3 on my el8 boxes.  The newer kernels solve a lot of hardware
issues.

On Tue, Apr 19, 2022 at 5:54 PM Kay Schenk  wrote:

> Hello folks --
>
> Is there any write up for the most recent update to kernel 4.18.0-373
> specifically with respect to sound setup or anything really? I had been
> using an "alpha" driver for my Intel sound that was appended to my boot
> line up until this latest. This not only did not work but caused
> continual hangs. Edited the 4.18.0-373 kernel line and things got
> somewhat better...butthis version is loading A LOT of modules and do
> I really need them, etc.
>
> I am going through a lot of grief with this recent upgrade.
>
> Thanks for any help...
>
> -- Kay
>
>
>
>
>
>
>
>
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[CentOS] Where can I find more information on the recent update to the 4.18.0-373 kernel

2022-04-19 Thread Kay Schenk

Hello folks --

Is there any write up for the most recent update to kernel 4.18.0-373 
specifically with respect to sound setup or anything really? I had been 
using an "alpha" driver for my Intel sound that was appended to my boot 
line up until this latest. This not only did not work but caused 
continual hangs. Edited the 4.18.0-373 kernel line and things got 
somewhat better...butthis version is loading A LOT of modules and do 
I really need them, etc.


I am going through a lot of grief with this recent upgrade.

Thanks for any help...

-- Kay








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Re: [CentOS] Kernel rebuild failling on Centos 7: missing libbpf-devel and dwarves rpm too old

2022-04-19 Thread Phil Perry

On 19/04/2022 15:56, Passerini Marco wrote:

Hi,


I'm trying to rebuild the kernel specifically on Centos7 from src.rpm but some 
packages are missing or too old. I managed to get them and compile on Centos8 
though. Any advice?


# yumdownloader --source kernel.src

# rpm -ivh ./kernel-4.18.0-348.20.1.el7.src.rpm

#  rpmbuild -bb --target=`uname -m`  ~/rpmbuild/SPECS/kernel.spec
Building target platforms: x86_64
Building for target x86_64
error: Failed build dependencies:
 libbpf-devel is needed by kernel-4.18.0-348.20.1.el7.x86_64
 rpm < 4.13.0.1-19 conflicts with kernel-4.18.0-348.20.1.el7.x86_64
 dwarves < 1.13 conflicts with kernel-4.18.0-348.20.1.el7.x86_64



You seem to be trying to build an el8 kernel source on el7?


# rpm -q dwarves
dwarves-1.10-1.el7.x86_64

# rpm -q rpm
rpm-4.11.3-48.el7_9.x86_64

# yum search libbpf-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
  * base: de.mirrors.clouvider.net
  * centos-sclo-rh: ftp.tu-chemnitz.de
  * centos-sclo-sclo: centos.mirrors.psw.services
  * epel: ftp.uni-kl.de
  * extras: mirror.imt-systems.com
  * updates: centos.mirror.iphh.net
Warning: No matches found for: libbpf-devel
No matches found

# yum info rpm
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
  * base: de.mirrors.clouvider.net
  * centos-sclo-rh: ftp.tu-chemnitz.de
  * centos-sclo-sclo: mirror.softaculous.com
  * epel: mirror.nextlayer.at
  * extras: mirror.imt-systems.com
  * updates: centos.mirror.iphh.net
Installed Packages
Name: rpm
Arch: x86_64
Version : 4.11.3
Release : 48.el7_9
Size: 2.5 M
Repo: installed

From repo   : updates

Summary : The RPM package management system
URL : http://www.rpm.org/
License : GPLv2+
Description : The RPM Package Manager (RPM) is a powerful command line driven
 : package management system capable of installing, uninstalling,
 : verifying, querying, and updating software packages. Each 
software
 : package consists of an archive of files along with information 
about
 : the package like its version, a description, etc.

# yum info dwarves
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
  * base: de.mirrors.clouvider.net
  * centos-sclo-rh: ftp.tu-chemnitz.de
  * centos-sclo-sclo: ftp.antilo.de
  * epel: mirror.de.leaseweb.net
  * extras: mirror.imt-systems.com
  * updates: centos.mirror.iphh.net
Installed Packages
Name: dwarves
Arch: x86_64
Version : 1.10
Release : 1.el7
Size: 199 k
Repo: installed

From repo   : epel

Summary : Debugging Information Manipulation Tools
URL : http://oops.ghostprotocols.net:81/blog
License : GPLv2
Description : dwarves is a set of tools that use the debugging information 
inserted in
 : ELF binaries by compilers such as GCC, used by well known 
debuggers such as
 : GDB, and more recent ones such as systemtap.
 :
 : Utilities in the dwarves suite include pahole, that can be used 
to find
 : alignment holes in structs and classes in languages such as C, 
C++, but not
 : limited to these.
 :
 : It also extracts other information such as CPU cacheline 
alignment, helping
 : pack those structures to achieve more cache hits.
 :
 : A diff like tool, codiff can be used to compare the effects 
changes in source
 : code generate on the resulting binaries.
 :
 : Another tool is pfunct, that can be used to find all sorts of 
information about
 : functions, inlines, decisions made by the compiler about 
inlining, etc.



Regards,
Marco Passerini
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[CentOS] Kernel rebuild failling on Centos 7: missing libbpf-devel and dwarves rpm too old

2022-04-19 Thread Passerini Marco
Hi,


I'm trying to rebuild the kernel specifically on Centos7 from src.rpm but some 
packages are missing or too old. I managed to get them and compile on Centos8 
though. Any advice?


# yumdownloader --source kernel.src

# rpm -ivh ./kernel-4.18.0-348.20.1.el7.src.rpm

#  rpmbuild -bb --target=`uname -m`  ~/rpmbuild/SPECS/kernel.spec
Building target platforms: x86_64
Building for target x86_64
error: Failed build dependencies:
libbpf-devel is needed by kernel-4.18.0-348.20.1.el7.x86_64
rpm < 4.13.0.1-19 conflicts with kernel-4.18.0-348.20.1.el7.x86_64
dwarves < 1.13 conflicts with kernel-4.18.0-348.20.1.el7.x86_64

# rpm -q dwarves
dwarves-1.10-1.el7.x86_64

# rpm -q rpm
rpm-4.11.3-48.el7_9.x86_64

# yum search libbpf-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: de.mirrors.clouvider.net
 * centos-sclo-rh: ftp.tu-chemnitz.de
 * centos-sclo-sclo: centos.mirrors.psw.services
 * epel: ftp.uni-kl.de
 * extras: mirror.imt-systems.com
 * updates: centos.mirror.iphh.net
Warning: No matches found for: libbpf-devel
No matches found

# yum info rpm
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: de.mirrors.clouvider.net
 * centos-sclo-rh: ftp.tu-chemnitz.de
 * centos-sclo-sclo: mirror.softaculous.com
 * epel: mirror.nextlayer.at
 * extras: mirror.imt-systems.com
 * updates: centos.mirror.iphh.net
Installed Packages
Name: rpm
Arch: x86_64
Version : 4.11.3
Release : 48.el7_9
Size: 2.5 M
Repo: installed
>From repo   : updates
Summary : The RPM package management system
URL : http://www.rpm.org/
License : GPLv2+
Description : The RPM Package Manager (RPM) is a powerful command line driven
: package management system capable of installing, uninstalling,
: verifying, querying, and updating software packages. Each software
: package consists of an archive of files along with information 
about
: the package like its version, a description, etc.

# yum info dwarves
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: de.mirrors.clouvider.net
 * centos-sclo-rh: ftp.tu-chemnitz.de
 * centos-sclo-sclo: ftp.antilo.de
 * epel: mirror.de.leaseweb.net
 * extras: mirror.imt-systems.com
 * updates: centos.mirror.iphh.net
Installed Packages
Name: dwarves
Arch: x86_64
Version : 1.10
Release : 1.el7
Size: 199 k
Repo: installed
>From repo   : epel
Summary : Debugging Information Manipulation Tools
URL : http://oops.ghostprotocols.net:81/blog
License : GPLv2
Description : dwarves is a set of tools that use the debugging information 
inserted in
: ELF binaries by compilers such as GCC, used by well known 
debuggers such as
: GDB, and more recent ones such as systemtap.
:
: Utilities in the dwarves suite include pahole, that can be used 
to find
: alignment holes in structs and classes in languages such as C, 
C++, but not
: limited to these.
:
: It also extracts other information such as CPU cacheline 
alignment, helping
: pack those structures to achieve more cache hits.
:
: A diff like tool, codiff can be used to compare the effects 
changes in source
: code generate on the resulting binaries.
:
: Another tool is pfunct, that can be used to find all sorts of 
information about
: functions, inlines, decisions made by the compiler about 
inlining, etc.



Regards,
Marco Passerini
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Re: [CentOS] Installing mdadm and C7 on new computer

2022-04-19 Thread Roberto Ragusa

On 4/18/22 1:27 PM, H wrote:

I have a new computer with 2 x 2TB SSDs where I wanted to install C7 and use 
mdadm for RAID1 configuration and encrypting the /home partition. On the net I 
found https://tuxfixer.com/centos-7-installation-with-lvm-raid-1-mirroring/ 
which I adopted slightly with respect to partition sizes, using RAID1 for /boot 
and /root as well and added the /home partition with RAID1 and chose to have 
/home encrypted.


It may be a good idea to also have / and swap encrypted, since user data can go 
there easily
(logs, locatedb, swapped mem).

I would do:
- /boot as a separate RAID1 (md1=sda1+sdb1)
- then another RAID1 (md2=sda2+sdb2) using all the remaining disk
- luks on top of md2, giving you luks-x
- LVM with a PV on luks-x
- VG and LVs for swap, / and /home (do not assign all the available space now, 
especially if using xfs as filesystem)

Not sure if you can do this setup through the installer, you have to try (in a 
VM maybe).

Regards.

--
   Roberto Ragusamail at robertoragusa.it
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[CentOS-docs] [centos/centos.org] branch main updated: Removed sponsor

2022-04-19 Thread git
This is an automated email from the git hooks/post-receive script.

arrfab pushed a commit to branch main
in repository centos/centos.org.

The following commit(s) were added to refs/heads/main by this push:
 new 432332d  Removed sponsor
432332d is described below

commit 432332d6bbe49f18cd950c62a61f230d1868bea1
Author: Fabian Arrotin 
AuthorDate: Tue Apr 19 09:07:20 2022 +0200

Removed sponsor

Signed-off-by: Fabian Arrotin 
---
 _sponsors/host-engine.md | 7 ---
 1 file changed, 7 deletions(-)

diff --git a/_sponsors/host-engine.md b/_sponsors/host-engine.md
deleted file mode 100644
index 06b1877..000
--- a/_sponsors/host-engine.md
+++ /dev/null
@@ -1,7 +0,0 @@

-name: Host-Engine
-country: usa
-logo: /assets/img/sponsors/host-engine.png
-address: http://host-engine.com/

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