Linux升級內核

內核升級：【內核版本 https://www.kernel.org/】

參考：http://blog.csdn.net/taiyang1987912/article/details/42744019

yum install ncurses-devel -y

yum install hmaccalc zlib-devel binutils-devel elfutils-libelf-devel -y

wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.10.28.tar.xz

tar -xf linux-3.10.28.tar.xz

mv linux-3.10.28 /usr/src/

cd /usr/src/linux-3.10.28/

cp /boot/config-2.6.32-573.el6.x86_64 .config

sh -c 'yes "" | make oldconfig'

make oldconfig

cpu核數 cat /proc/cpuinfo| grep "processor"| wc -l 下面-j後面的48是cpu核數（指定編譯核數）

make -j48 bzImage

make -j48 modules

make -j48 modules_install

make install

vi /etc/grub.conf

【看新安裝的內核在第幾段，一般是在第一段，從0開始數看title CentOS (3.10.28) 在第一段爲default=0，第二段爲default=1】

例如【

#boot=/dev/sdb

default=0

timeout=5

splashimage=(hd0,0)/grub/splash.xpm.gz

hiddenmenu

title CentOS (3.10.28)

root (hd0,0)

kernel /vmlinuz-3.10.28 ro root=UUID=28fbaad8-35a6-4348-b1e0-bf204537f8b0 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet

initrd /initramfs-3.10.28.img

title CentOS (2.6.32-642.3.1.el6.x86_64)

root (hd0,0)

kernel /vmlinuz-2.6.32-642.3.1.el6.x86_64 ro root=UUID=28fbaad8-35a6-4348-b1e0-bf204537f8b0 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet

initrd /initramfs-2.6.32-642.3.1.el6.x86_64.img

title CentOS 6 (2.6.32-573.el6.x86_64)

root (hd0,0)

kernel /vmlinuz-2.6.32-573.el6.x86_64 ro root=UUID=28fbaad8-35a6-4348-b1e0-bf204537f8b0 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet

initrd /initramfs-2.6.32-573.el6.x86_64.img

】

reboot

uname -r 查看內核版本

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