All Questions
Tagged with linux-kernelrhel
59 questions
0votes
0answers
741views
Failing to upgrade Oracle Linux 7.9 to 8.10 via leapp
Leapp upgrade of Oracle Linux 7.9 to 8.10 fails and drops in emergency mode. This happens when I select EL8 kernel in grub menu. System seems to be working normally with EL7 kernel. Systems are ...
0votes
0answers
89views
Diff RHEL, Debian, Kernel.org
I have read that RedHat and Debian patch the Kernel.org kernel, apparently they make different changes, which is easy enough to believe, however, I wish to see the difference. Meaning - I basically ...
- 107
1vote
1answer
85views
Count the total processes spawned using /proc/loadavg
In a Red Hat Linux 8 operating system, I examined the output of cat /proc/loadavg and obtained "5.20 5.78 8.04 16/1596 1954863". After 4 minutes, I rechecked the /proc/loadavg output and ...
- 11
0votes
1answer
87views
CentOS 7.9 not reporting full version number after recompiling kernel
I needed to enable SCSI support in CentOS 7.9 so I followed the instructions here: https://wiki.centos.org/HowTos(2f)I_need_the_Kernel_Source.html to add SCSI support and recompile, which worked as ...
- 23
0votes
1answer
124views
Difference between sysctl options to set system parameters
I see on the web two different commands to load sysctl custom parameters: sysctl --system sysctl -p Is there any difference between the two commands? I know the second one I posted can take the path ...
- 103
0votes
0answers
58views
port ubuntu kernel to rhel
I need to port ubuntu kernel with HWE to RHEL 9. I have experience in fedora like systems but not in debian like systems. I have Downloaded the kernel source using apt source but don't know what to do ...
0votes
1answer
479views
/boot/config missing for new kernel
I compiled the latest Linux 6.6.9 kernel from source and after installation, when I run cat /boot/config-$(uname -r), I get an error: cat: /boot/config-6.6.9: No such file or directory. The config ...
- 21
0votes
1answer
273views
CentOS Stream 9 image has predictable interface naming disabled
I'm using a qcow2 image from here. Note the net.ifnames=0 cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/boot/vmlinuz-5.14.0-366.el9.x86_64 root=UUID=<uuid> ro console=ttyS0,115200n8 no_timer_check ...
mockitodorito
0votes
0answers
175views
BUG: unable to handle kernel NULL pointer dereference at (null)
I am running a Java (TIBCO EBX) in linux server with 192 GB RAM and we are constantly seeing Java process getting restarted and application will go into hang state, with High Memory alerts. We had set ...
- 113
0votes
1answer
4kviews
What is the difference between Linux and RedHat Enterprise Linux?
I have few questions. When we say Linux, does it refer to only the kernel? When we say Linux is opensource/free, does it mean only the Linux Kernel is free? or does it mean that the linus kernel ...
0votes
0answers
279views
how to exclude not important kernel messages that hide the real kernel messages lines
we have HP HW ( DL 380 G10 ) physical REDHAT machines. ( version 7.5 ) and as we can see the kernel messages are filled by the following messages about. ACPI Error: Method parse/execution failed [\...
- 13.9k
1vote
3answers
2kviews
How do you build an in-tree kernel module as if it were an out-of-tree kernel module?
I would like to use the Oracle Linux UEK7 Kernel but UEK7 disabled DRBD , which we rely on heavily. However, the .src.rpm is available so theoretically the drbd.ko module could be built against /lib/...
- 515
0votes
2answers
1kviews
how to identify if rhel 7 machine requires reboot after kernel update
as all know after kernel upgrade (on RHEL 7), reboot is necessary in order to update the kernel version So after reboot we can verify the kernel version by uname -r since we are using scripts for ...
- 13.9k
1vote
0answers
45views
Live kernel patching in ubuntu
I am trying to see the advantages & disadvantages of live kernel patching over a newly built kernel with intended patches. I read live kernel patching uses ftrace's framework. Since ftrace keep ...
- 309
1vote
1answer
794views
Too many open files error, but only when accessing through a mounted disk
I am having a problem where once I try to copy something from a mounted unit on a windows dfs server (Windows server 2012), I get the "Too many open files" errors from linux, but ONLY if I ...
- 21
