LVS Fullnat之编译内核 将fullnat模块添加到内核

主机环境  RedHat6.5 64位

实验环境  ip 172.25.29.6

安装包    asciidoc-8.4.5-4.1.el6.noarch.rpm 

Lvs-fullnat-synproxy.tar.gz

kernel-2.6.32-220.23.1.el6.src.rpm 

newt-devel-0.52.11-3.el6.x86_64.rpm             

slang-devel-2.2.1-1.el6.x86_64.rpm

防火墙状态:关闭


 

重新编译内核之前,要保证根分区要有20G的内存。

如果没有足够的空间就添加一块20G的虚拟磁盘

1.给根分区分用lvm分20G的空间(如果有足够的空间,就不用做拉伸了)

[root@server6 ~]# fdisk -l                      #查看分区

Disk /dev/vdc: 21.5 GB, 21474836480 bytes      #新添加的磁盘

16 heads, 63 sectors/track, 41610 cylinders

Units = cylinders of 1008 * 512 = 516096 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

[root@server6 ~]# pvcreate /dev/vdc              #用pv分成物理块

Physical volume"/dev/vdc" successfully created

[root@server6 ~]# pvs                            #查看,pv成功

PV        VG      Fmt Attr PSize  PFree

/dev/vda2  VolGroup lvm2 a--  8.51g    0

/dev/vdc            lvm2 a--  20.00g 20.00g

[root@server6 ~]# vgs                            #查看

VG      #PV #LV #SN Attr  VSize VFree

VolGroup  1  2  0 wz--n- 8.51g    0

[root@server6 ~]# vgextend VolGroup /dev/vdc      #扩展VolGroup组

Volume group"VolGroup" successfully extended

[root@server6 ~]# vgs                            #查看

VG      #PV #LV #SN Attr  VSize VFree

VolGroup  2  2  0 wz--n- 28.50g 20.00g

[root@server6 ~]# lvextend -L 20G /dev/VolGroup/lv_root  #扩展lv

Extending logicalvolume lv_root to 20.00 GiB

Logical volume lv_rootsuccessfully resized     

[root@server6 ~]# df -lh                          #查看,根分区7.5G

Filesystem                  Size  Used Avail Use% Mounted on

/dev/mapper/VolGroup-lv_root 7.5G  1.5G  5.7G 21% /

tmpfs                        499M    0  499M  0% /dev/shm

/dev/vda1                    485M  55M  405M 12% /boot

[root@server6 ~]# resize2fs /dev/VolGroup/lv_root  #扩展文件系统

resize2fs 1.41.12 (17-May-2010)

Filesystem at /dev/VolGroup/lv_root is mounted on /; on-lineresizing required

old desc_blocks = 1, new_desc_blocks = 2

Performing an on-line resize of /dev/VolGroup/lv_root to5242880 (4k) blocks.

The filesystem on /dev/VolGroup/lv_root is now 5242880 blockslong.

[root@server6 ~]# df -lh                            #查看,根分区20G

Filesystem                  Size  Used Avail Use% Mounted on

/dev/mapper/VolGroup-lv_root  20G  1.5G  18G  8% /

tmpfs                        499M    0  499M  0% /dev/shm

/dev/vda1                    485M  55M  405M 12% /boot

2. 重新编译内核,将fallnat模块添加到在内核及测试

A)重新编译内核

[root@server6 mnt]# ls

asciidoc-8.4.5-4.1.el6.noarch.rpm  Lvs-fullnat-synproxy.tar.gz

kernel-2.6.32-220.23.1.el6.src.rpm  newt-devel-0.52.11-3.el6.x86_64.rpm

lvs-fullnat-synproxy              slang-devel-2.2.1-1.el6.x86_64.rpm

[root@server6 mnt]# rpm -vih kernel-2.6.32-220.23.1.el6.src.rpm    #安装内核包

[root@server6 mnt]# yum install rpm-build -y            #安装rpmbuild

[root@server6 mnt]# cd ~/rpmbuild/

[root@server6 rpmbuild]# ls

BUILD  BUILDROOT  RPMS SOURCES  SPECS  SRPMS

[root@server6 rpmbuild]# cd SPECS/

[root@server6 SPECS]# ls

kernel.spec

[root@server6 SPECS]# rpmbuild -bp kernel.spec          #生成内核源码

error: Failed build dependencies:

redhat-rpm-config isneeded by kernel-2.6.32-220.23.1.el6.x86_64

patchutils is neededby kernel-2.6.32-220.23.1.el6.x86_64

xmlto is needed bykernel-2.6.32-220.23.1.el6.x86_64

asciidoc is needed bykernel-2.6.32-220.23.1.el6.x86_64

elfutils-libelf-develis needed by kernel-2.6.32-220.23.1.el6.x86_64

binutils-devel isneeded by kernel-2.6.32-220.23.1.el6.x86_64

newt-devel is neededby kernel-2.6.32-220.23.1.el6.x86_64

python-devel is neededby kernel-2.6.32-220.23.1.el6.x86_64

perl(ExtUtils::Embed)is needed by kernel-2.6.32-220.23.1.el6.x86_64

hmaccalc is needed bykernel-2.6.32-220.23.1.el6.x86_64

[root@server6 SPECS]# yum install redhat-rpm-config patchutilsxmlto elfutils-libelf-devel binutils-devel python-devel hmaccalcperl-ExtUtils-Embed -y    #安装所缺少的包

[root@server6 SPECS]# cd /mnt/

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