Hello CentOS users,
Currently I have compiled kernel version 4.19.37, which the source is from kernel.org. I compiled the kernel by following steps: - get the kernel tarball and unpack it - install prerequisties as described in https://wiki.centos.org/HowTos/Custom_Kernel (in addition bc and openssl-devel) - copy the kernel configuration: $ cp /boot/config-3.10.0-957.21.3.el7.x86_64 ~/linux-4.19.37/.config - create configuration: $ cd ~/linux-4.19.37 $ make olddefconfig $ make nconfig - compile and create RPM package: $ make vmlinux $ make modules $ make rpm-pkg - install kernel RPM: # yum install ~/rpmbuild/RPMS/x86_64/kernel-*.rpm
However, in the last step (installing kernel RPM), I got following notice: ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: kernel x86_64 4.19.37_sentinel_custom-1 /kernel-4.19.37_sentinel_custom-1.x86_64 209 M kernel-devel x86_64 4.19.37_sentinel_custom-1 /kernel-devel-4.19.37_sentinel_custom-1.x86_64 817 M kernel-headers x86_64 4.19.37_sentinel_custom-1 /kernel-headers-4.19.37_sentinel_custom-1.x86_64 4.6 M replacing kernel-headers.x86_64 3.10.0-957.21.3.el7
Transaction Summary ================================================================================ Install 3 Packages
There, the compiled kernel-headers package (4.19.37_sentinel_custom-1) is about to replace stock version (3.10.0-957.21.3.el7). Is it safe to continue installing from compiled RPM package above, or install kernel manually?
Regards, Bagas
On Wed, Jun 26, 2019 at 5:20 AM Bagas Sanjaya bagasdotme@gmail.com wrote:
Hello CentOS users,
Currently I have compiled kernel version 4.19.37, which the source is from kernel.org. I compiled the kernel by following steps:
- get the kernel tarball and unpack it
- install prerequisties as described in https://wiki.centos.org/HowTos/Custom_Kernel (in addition bc and openssl-devel)
- copy the kernel configuration: $ cp /boot/config-3.10.0-957.21.3.el7.x86_64 ~/linux-4.19.37/.config
- create configuration: $ cd ~/linux-4.19.37 $ make olddefconfig $ make nconfig
- compile and create RPM package: $ make vmlinux $ make modules $ make rpm-pkg
- install kernel RPM: # yum install ~/rpmbuild/RPMS/x86_64/kernel-*.rpm
However, in the last step (installing kernel RPM), I got following notice:
Package Arch Version Repository Size ================================================================================ Installing: kernel x86_64 4.19.37_sentinel_custom-1 /kernel-4.19.37_sentinel_custom-1.x86_64 209 M kernel-devel x86_64 4.19.37_sentinel_custom-1 /kernel-devel-4.19.37_sentinel_custom-1.x86_64 817 M kernel-headers x86_64 4.19.37_sentinel_custom-1 /kernel-headers-4.19.37_sentinel_custom-1.x86_64 4.6 M replacing kernel-headers.x86_64 3.10.0-957.21.3.el7
Transaction Summary
Install 3 Packages
There, the compiled kernel-headers package (4.19.37_sentinel_custom-1) is about to replace stock version (3.10.0-957.21.3.el7). Is it safe to continue installing from compiled RPM package above, or install kernel manually?
In general, you want to keep the distro's kernel-headers unless you also plan to play with glibc. You may find the following article useful:
https://kernelnewbies.org/KernelHeaders
Akemi
On 26/06/19 23.51, Akemi Yagi wrote:
On Wed, Jun 26, 2019 at 5:20 AM Bagas Sanjaya bagasdotme@gmail.com wrote:
Hello CentOS users,
Currently I have compiled kernel version 4.19.37, which the source is from kernel.org. I compiled the kernel by following steps:
- get the kernel tarball and unpack it
- install prerequisties as described in https://wiki.centos.org/HowTos/Custom_Kernel (in addition bc and openssl-devel)
- copy the kernel configuration: $ cp /boot/config-3.10.0-957.21.3.el7.x86_64 ~/linux-4.19.37/.config
- create configuration: $ cd ~/linux-4.19.37 $ make olddefconfig $ make nconfig
- compile and create RPM package: $ make vmlinux $ make modules $ make rpm-pkg
- install kernel RPM: # yum install ~/rpmbuild/RPMS/x86_64/kernel-*.rpm
However, in the last step (installing kernel RPM), I got following notice:
Package Arch Version Repository Size ================================================================================ Installing: kernel x86_64 4.19.37_sentinel_custom-1 /kernel-4.19.37_sentinel_custom-1.x86_64 209 M kernel-devel x86_64 4.19.37_sentinel_custom-1 /kernel-devel-4.19.37_sentinel_custom-1.x86_64 817 M kernel-headers x86_64 4.19.37_sentinel_custom-1 /kernel-headers-4.19.37_sentinel_custom-1.x86_64 4.6 M replacing kernel-headers.x86_64 3.10.0-957.21.3.el7
Transaction Summary
Install 3 Packages
There, the compiled kernel-headers package (4.19.37_sentinel_custom-1) is about to replace stock version (3.10.0-957.21.3.el7). Is it safe to continue installing from compiled RPM package above, or install kernel manually?
In general, you want to keep the distro's kernel-headers unless you also plan to play with glibc. You may find the following article useful:
https://kernelnewbies.org/KernelHeaders
Akemi _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
So is it safe to install kernel RPMs generated by compilation from kernel.org tarball, or should I stick to manual install?
On 6/26/19 4:54 PM, Bagas Sanjaya wrote:
So is it safe to install kernel RPMs generated by compilation from kernel.org tarball, or should I stick to manual install?
You probably don't need to install the devel package unless you plan to also build third-party kernel modules.
You shouldn't need to install the headers package. The content of that package *should* be the same as the one that was provided by the vendor (CentOS), and if it is not then you would need to rebuild glibc in addition to replacing them. The same is true for "make headers_install": It shouldn't change anything, and shouldn't be necessary.
-
Akemi Yagi -
Bagas Sanjaya -
Gordon Messmer