Centos7.1 Upgrade Kernel Support AUFS module

1. Check the Linux kernel version and whether the Aufs module is supported:

[16:45:31 [email protected] ~]# uname-r3.10.0-229.el7.x86_64[16:46:45 [email protected] ~]# grep aufs/etc/filesystems

2. Download the 3.10 kernel with the Aufs module

from this site http://down.51cto.com/data/1903250 Download the following two files and upload them to a virtual machine

Kernel-ml-aufs-3.10.5-3.el6.x86_64.rpm.gz

Kernel-ml-aufs-3.10.5-3.el6.x86_64.rpm.gz

3. Unzip and install

[16:59:55 [email protected] ~]# GZIP-DV kernel-ml-aufs-3.10.5-3.el6.x86_64.rpm.gz[17:00:04 [email protected] ~]# gzip-d V kernel-ml-aufs-devel-3.10.5-3.el6.x86_64.rpm.gz

[17:00:35 [email protected] ~]# RPM-IVH kernel-ml-aufs-3.10.5-3.el6.x86_64.rpm[17:02:00 [email protected] ~]# rpm-ivh ke rnel-ml-aufs-devel-3.10.5-3.el6.x86_64.rpm

4. Modify the configuration file

Unlike the CENTOS6 version, the/etc/grub.conf is changed directly

CENTOS7 version of this file is not/etc/grub.conf, its kernel parameters to modify the following steps

[17:02:47 [email protected] ~]# vi/etc/default/grubgrub_timeout=5grub_default=savedgrub_disable_submenu=truegrub_ terminal_output= "Console" grub_cmdline_linux= "Crashkernel=auto rhgb quiet" grub_disable_recovery= "true"

from the configuration file, you can see that Grub_default is saved,saved means that the last kernel is started by default on the next boot, where we need to change grub_default=0 (0 means select the first kernel at startup, as shown)

Also execute the following command to regenerate the grub.cfg

Grub2-mkconfig-o/boot/grub2/grub.cfg

5. Rebooting the system

Reboot

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Check the kernel version and see if the kernel supports AUFS

[21:17:43 [email protected] ~]# uname-r3.10.5-3.el6.x86_64[21:18:01 [email protected] ~]# grep aufs/proc/filesystemsnod EV Aufs

Execution complete, system support AUFS, can do Docker installation operation

This article is from the "Big Waste" blog, please be sure to keep this source http://bigtrash.blog.51cto.com/8966424/1828600

Centos7.1 Upgrade Kernel Support AUFS module