Ụzọ atọ iji melite kernel nke sistemụ CentOS kọmputa mmepụta ihe

N'oge eji CentOS eme ihe, ọ gaghị ekwe omume ịkwalite kernel, mana mgbe ụfọdụ n'ihi nsogbu ịdabere na koodu isi mmalite, ọ bụghị mmemme niile na-akwado ụdị kernel kachasị ọhụrụ, yabụ ihe ndị a ga-ewebata ụzọ atọ iji melite kernel.

Rịba ama:
Banyere ụdị kernel:
ml dị na kernel-ml bụ mkpọbiri nke [mainline stable] na Bekee, a depụtakwara ụdị mainline kachasị ọhụrụ na elrepo-kernel.
lt dị na kernel-lt bụ mkpọbiri nke [nkwado ogologo oge] na Bekee, ebe e depụtara ụdị nkwado ogologo oge na elrepo-kernel.
Lelee ụdị kernel
aha -r

Tebulu ọdịnaya

• 1. nrụnye yum
• 2. Ntinye RPM
• 3. Ntinye koodu isi mmalite

1. nrụnye yum

1. Bubata isi iyi nchekwa ahụ
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
2. Lee ngwugwu ndị a na-etinye
yum --enablerepo="elrepo-kernel" ndepụta --showduplicates | họta -r | grep
kernel-ml.x86_64
3. Họrọ ụdị ML ma ọ bụ LT iji wụnye
Ọ bụrụ na akọwapụtaghị ụdị ọ bụla, a na-etinye ụdị kachasị ọhụrụ na ndabara.
Wụnye ụdị ML
yum --enablerepo=elrepo-kernel wụnye kernel-ml-devel kernel-ml -y
Wụnye ụdị LT, họrọ nke a maka K8S niile
yum --enablerepo=elrepo-kernel wụnye kernel-lt-devel kernel-lt -y
4. Lelee usoro mmalite nke kernel dị ugbu a
awk -F\' '$1=="menuentry " {bipụta $2}' /etc/grub2.cfg
5. Gbanwee ihe mbido ndabara
xxx bụ nọmba usoro, nke na-akọwapụta ihe xth dị na ndepụta buut dị ka ihe buut, na x na-amalite ịgụ site na 0
nhazi grub2-ndabara xxxx
Dịka ọmụmaatụ, ọ bụrụ na ịchọrọ ịtọ ya ka ọ bụrụ buut na kernel 4.4
wee tinye "grub2-set-default 0" ozugbo, ị nwekwara ike ịmalite site na 4.4 oge ọzọ ịmalite.
Lelee usoro mmalite nke kernel boot
[root@localhost ~] awk -F\' '$1=="menuentry " {bipụta $2}' /etc/grub2.cfg
CentOS Linux (4.4.179-1.el7.elrepo.x86_64) 7 (Isi)
CentOS Linux (3.10.0-693.el7.x86_64) 7 (Isi)
CentOS Linux (0-rescue-6d4c599606814867814f1a8eec7bfd1e) 7 (Isi)
Tọọ nọmba usoro mmalite boot
[mgbọrọgwụ@localhost ~] grub2-set-ndabara 0
Malitegharịa
malitegharịa
Lelee ụdị kernel
aha -r

2. Ntinye RPM

Lelee ụdị kernel
aha -r
1. Chọta ụdị ya
Ebe ọ bụ na isi mmalite ELRepo bụ ụdị kachasị ọhụrụ, enwere ike ibudata ụdị kernel ochie naanị aka.
Chọta akụkọ ihe mere eme nke kernel rpm:
http://mirrors.coreix.net/elrepo-archive-archive/kernel/el7/x86_64/RPMS/
2. Ịkwesịrị ibudata ụdị rpm atọ
wget
http://mirrors.coreix.net/elrepo-archive-archive/kernel/el7/x86_64/RPMS/kernel-lt
mmepe-4.4.215-1.el7.elrepo.x86_64.rpm
wget
http://mirrors.coreix.net/elrepo-archive-archive/kernel/el7/x86_64/RPMS/kernel-lt
isi okwu-4.4.215-1.el7.elrepo.x86_64.rpm
wget
http://mirrors.coreix.net/elrepo-archive-archive/kernel/el7/x86_64/RPMS/kernel-lt-
4.4.215-1.el7.elrepo.x86_64.rpm
3. Wụnye kernel ahụ
rpm -ivh kernel-lt-4.4.215-1.el7.elrepo.x86_64.rpm
rpm -ivh kernel-lt-devel-4.4.215-1.el7.elrepo.x86_64.rpm
ma ọ bụ
# Wụnye ihe niile n'otu pịa
rpm -Uvh *.rpm
4. Kwenye ụdị kernel arụnyere
[mgbọrọgwụ@localhost ~]# rpm -qa | kernel grep
kernel-headers-3.10.0-1160.15.2.el7.x86_64
kernel-devel-3.10.0-1160.49.1.el7.x86_64
ngwaọrụ kernel-libs-3.10.0-957.el7.x86_64
kernel-3.10.0-957.el7.x86_64
kernel-ml-4.9.9-1.el7.elrepo.x86_64
kernel-lt-4.4.215-1.el7.elrepo.x86_64
ngwaọrụ kernel-3.10.0-957.el7.x86_64
kernel-lt-devel-4.4.215-1.el7.elrepo.x86_64

5. Tọọ mmalite mmalite
Lelee usoro mmalite ahụ
[root@localhost ~]# awk -F\' '$1=="menuentry " {bipụta $2}' /etc/grub2.cfg
CentOS Linux (4.4.215-1.el7.elrepo.x86_64) 7 (Isi)
CentOS Linux (4.9.9-1.el7.elrepo.x86_64) 7 (Isi)
CentOS Linux (3.10.0-957.el7.x86_64) 7 (Isi)
CentOS Linux (0-rescue-b91f945269084aa98e8257311ee713c5) 7 (Isi)
Debe usoro mmalite ahụ
[mgbọrọgwụ@localhost ~]# grub2-setịpụrụ-ndabara 0
Malitegharịa ekwentị iji malite ịrụ ọrụ
[mgbọrọgwụ@localhost ~] # malitegharịa

3. Ntinye koodu isi mmalite

1. Wụnye ngwugwu ngwanrọ isi
yum wụnye -y gcc mee git ctags ncurses-devel openssl-devel
yum wụnye -y bison flex elfutils-libelf-devel bc
2. Mepụta ndekọ nchịkọta kernel
Jiri ndekọ kernelbuild n'okpuru Home
mkdir ~/kernelbuild
3. Nweta koodu isi iyi kernel
Ebe ngosi nke Mahadum Tsinghua:
https://mirror.tuna.tsinghua.edu.cn/kernel/v4.x/?C=M&O=D
Adreesị nbudata nwụnye ngwugwu koodu isi mmalite ndị ọzọ:
https://mirrors.edge.kernel.org/pub/linux/kernel/
linux-4.xx.xx.tar.xz
linux-4.xx.xx.tar.gz
Usoro abụọ a dị mma, tar.xz nwere ọnụego mkpakọ dị elu na obere nha faịlụ.
Budata ya n'ịntanetị: wget https://mirror.tuna.tsinghua.edu.cn/kernel/v4.x/linux-4.17.11.tar.xz
4. Mepee koodu kernel ahụ
Mgbe ị tọpụchara ya, tinye ebe nchekwa isi mmalite:
tar -xvJf linux-4.17.11.tar.xz
Iji hụ na osisi kernel dị ọcha nke ọma, tinye ndekọ kernel wee mee iwu make mrproper:
cd linux-4.17.11
mee ka ọ dị ọcha ma mee ka ọ dị mma

5. Nhazi kernel
Detuo faịlụ nhazi kernel dị ugbu a
config-3.10.0-862.el7.x86_64 bụ faịlụ nhazi kernel nke gburugburu m ugbu a, gbanwee ya dịka ọnọdụ ahụ si dị.
cp /boot/config-3.10.0-862.el7.x86_64 .config
Nhazi dị elu
a na-eme ka y rụọ ọrụ, a na-eme ka n rụọ ọrụ, a na-emekwa ka m rụọ ọrụ mgbe ọ dị mkpa.
mee menuconfig: interface ochie nke ncurses, ejiri nconfig dochie ya
make nconfig: Ntugharị iwu ọhụrụ nke ahịrị iwu ncurses
6. Chịkọta ma wụnye ya
Gbakọọ kernel ahụ
Ọ bụrụ na ị nwere igwe quad-core, x nwere ike ịbụ 8
mee -jx
Wụnye kernel
Mgbe ị chịkọtara kernel ahụ, wụnye: Ịdọ aka ná ntị: Site ugbu a gaa n'ihu, ịchọrọ ikike mgbọrọgwụ iji mezuo iwu, ma ọ bụghị ya, ọ ga-ada ada.
mee ka modulu_wụnye wụnye
7. Hazie mmalite
Lelee usoro mmalite ahụ
[root@localhost ~]# awk -F\' '$1=="menuentry " {bipụta $2}' /etc/grub2.cfg
CentOS Linux (4.17.11-1.el7.elrepo.x86_64) 7 (Isi)
CentOS Linux (4.9.9-1.el7.elrepo.x86_64) 7 (Isi)
CentOS Linux (3.10.0-957.el7.x86_64) 7 (Isi)
CentOS Linux (0-rescue-b91f945269084aa98e8257311ee713c5) 7 (Isi)
Tọọ usoro mmalite
[mgbọrọgwụ@localhost ~]# grub2-setịpụrụ-ndabara 0
Malitegharịa ekwentị iji malite ịrụ ọrụ
[mgbọrọgwụ@localhost ~] # malitegharịa