How to re-install Centos yourself remotely

ㄒiger

  大牛们 告诉下。这个必须服务器支持啥可以正常运行。。



sentris的机器。我正在重装..好像可以  ~~~~.. VPS的不知道行不行。。。

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2012-2-27 21:30 上传

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Assuming you currently have a Centos 5 64-bit that was installed by us (if you have or want 32-bit, set/use 32-bit accordingly).

Below will reinstall to Centos 5.6 64-bit, change it accordingly if you want other versions of centos.

1. SSH to your server and login as root

2. Type below:

mkdir /centos_install
cd /centos_install
wget http://vault.centos.org/5.6/os/x86_64/images/pxeboot/initrd.img
wget http://vault.centos.org/5.6/os/x86_64/images/pxeboot/vmlinuz
cp vmlinuz /boot/vmlinuz.cent.pxe
cp initrd.img /boot/initrd.img.cent.pxe3. Add to/Edit the grub menu.lst entry to load the pxe kernel (note: if you were already using grub you do not need to type again the first 2 lines)nano -w /etc/grub.conf
     

in that file paste this in BETWEEN "hiddenmenu" and "title CentOS..." (IMPORTANT):
     
title Centos Install (PXE)
root (hd0,0)
kernel /vmlinuz.cent.pxe vnc vncpassword=YOURPSW headless ip=YOURIP netmask=255.255.255.0 gateway=GATEWAYIP dns=8.8.8.8 ksdevice=eth0 method=http://vault.centos.org/5.6/os/x86_64/ lang=en_US keymap=us
initrd /initrd.img.cent.pxe
     

     
replace
     


YOURPSW with the VNC password you want setup
YOURIP with the ip of the box…
GATEWAYIP with the gateway assigned to your box
     

     
Hint: you can see the gateway ip by issuing
     
route -n | grep UG
once you have done this you need to count the number of times “title” appears in the file, press ctrl +x, and save the file


4. Reboot the server by typing

reboot

5. Assuming above is done correctly, you can then use vncviewer (download from realvnc.com) and connect to YOURIPHERE:1
And password is whatever you set above.


   
For Centos 6.2 64-bit, you can use this:
   

   
mkdir /centos_install
cd /centos_install
wget http://linux.mirrors.es.net/centos/6.2/os/x86_64/images/pxeboot/initrd.img
wget http://linux.mirrors.es.net/centos/6.2/os/x86_64/images/pxeboot/vmlinuz
cp vmlinuz /boot/vmlinuz.cent.pxe
cp initrd.img /boot/initrd.img.cent.pxe

title Centos Install (PXE)
root (hd0,0)
kernel /vmlinuz.cent.pxe vnc vncpassword=YOURPSW headless ip=YOURIP netmask=255.255.255.0 gateway=GATEWAYIP dns=8.8.8.8 ksdevice=eth0 method=http://linux.mirrors.es.net/centos/6.2/os/x86_64/ lang=en_US keymap=us
initrd /initrd.img.cent.pxe
  
   

winder

作为二楼.我深感责任重大.要是我不回复..楼主还以为自己玩的是单机版的主机论坛,另外.我要摸摸4楼的狗头,我之所以不摸3楼的.是因为怕有孙子跟我抢2楼.一不小心就摸了自己.

755348567

3楼
。。。。

guaku

没有ipmi/kvm的吗

guaku

去申请ipmi试试。。。

ㄒiger

guaku 发表于 2012-2-27 22:04
没有ipmi/kvm的吗

  没 我这样都重装好了。。

lqtest

winder 发表于 2012-2-27 21:32
作为二楼.我深感责任重大.要是我不回复..楼主还以为自己玩的是单机版的主机论坛,另外.我要摸摸4楼的狗头,我 ...

经典

qingniancom

这个教程基本所以的机房都支持，包括在本地。
但是，路径一定一定一定要写对，不然。。。。

ㄒiger

qingniancom 发表于 2012-2-27 22:43
这个教程基本所以的机房都支持，包括在本地。
但是，路径一定一定一定要写对，不然。。。。 ...

我的对了  现在在折腾中。。

qingniancom

ㄒiger 发表于 2012-2-27 22:44
我的对了  现在在折腾中。。

kvm架构和xen-hvm架构的vps也可以这么做，之前试验成功。