CentOS 5 :: Cloning Installation From One Server To Another?
Aug 12, 2011
Basically I have setup and configured a CentOS 5.6 system on one server, and will be getting a brand new server in about a months time I was wondering if there was a way to clone a system from one server to another so I don't have to add all the users again, the config files are not a issue as I can just copy them over, but having to re-do all the user accounts, smb accounts and folder permissions will be a pain.
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Feb 16, 2009
is there a way to clone an installation? I have a couple "master systems" which I want to replicate into other servers. In Solaris I can build a flar image from the first one and install from that image, I looked into cobbler and koan, but they seem to be more repo and kickstart oriented.I need a way to say "take this system as a base and build an installation image out of it".
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Oct 3, 2009
I have a rock solid server running CentOS 5.3 (probably 5.4 soon enough). Basic LAMP box with a few tweaks thrown in. Everything is running perfectly, with one problem - the drive is too small (I project it filling up to dangerous levels in 6-8 months). So, what I'm looking to do is basically clone the drive, store the image, pull the current drive and replace with a bigger drive (same number of heads and cylinders though), and install the image.
What I did do once, a million years ago, is put the new drive as a slave on the same IDE cable, and use dd (working from a live CD of the distro) to copy from the master (smaller) to slave (larger). Then, yank the smaller, change jumper on bigger drive from slave to master, and away I go. Next step as I recall was using gparted to get access to all the space on the new, bigger drive.
Is this more less still a reasonable way to go? I recall the issue was making sure the old smaller and new larger drive had the same number of heads/cylinders (although I don't remember exactly why).
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Sep 1, 2010
what is the best software for cloning my centos as an exact image?
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Nov 7, 2010
I just invested nearly 12 hours configuring a CCTV system using CentOS 5.5 Server and Zoneminder. I have it setup just the way I want it. I would like to make a clone image of the drive just in case disaster strikes (lightning strike, failed hard disk, etc). In the Windows PC world, I use a program called Ghost to make a mirror image of a hard disk. I power the computer down, run Ghost to make a block level clone of the drive, then power it back up. Can I assume that will work with CentOS without problem?
In the computer now is a 320GB SATA drive. One partition on it is swap, and the other is ext3. There is no raid setup on the drive. I have an identical 320GB drive I could use and keep it in the computer unplugged from the power and not spinning. That way if anything ever happens, I can power down, move the power and data cable to the new drive and power it back up. Granted, I will lose any new config and database changes, but it will be a lot better than starting back at square 1 and reconfiguring the entire OS and software.
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Sep 20, 2010
I have installed nagios successfully, also I have added one windows server for monitoring. Now I want to add another windows server with the same default services is there any option in nagios which can clone existing window server with new one. So I don't have to do all steps again.
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Jan 14, 2010
I need to backup my active production servers (yeah it's too late now) with image cloning application that were running RHEL3-5. The problem is I need to run it remotely from my office. Most of the software I found either need to use bootable cd or need to unmount my partitions which is I wasn't allowed to since it's a production servers. I also tried dd but it consume too much time, sector by sector cloning and empty disk space also included so the file created also big in size.
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Apr 26, 2010
We are giving away 20+ machines to 3rd world county and I was asked from the receiving party to install linux on them. What I don't want is to pop a cd into all of them and do the manually install.
I'm thinking of installing one computer the old fashion way and do the OEM-configuration on it afterwards. It would be nice to just clone the hard drives since the computer is identical right down to the hard drive.
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Dec 4, 2015
I have read several manuals and online html on how to clone a partition to a greater one, I am still not sure about what to do.
Code: Select all# df -k /srv /usr
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md5 38445384 195236 36297128 1% /srv
/dev/md3 8648896 1088016 7121540 14% /usr
What is the recommended procedure to clone i.e. /dev/mdx (/usr) partition to a greater one, say /dev/mdy, to accommodate for growth, whilst preserving attributes including timestamps (and yes, that means also including ctime).All of # cp -ax SOURCE DEST, # rsync -ax SOURCE DEST and # cpio modify ctime.Some sites recommend dd, i.e.:
Code: Select all# dd if=/dev/mdx of=/dev/mdy bs=512 conv=noerror,notrunc,sync
URL....However, I am not sure what will dd copy do with end of partition, and will it see the remaining space on /srv (it's contents are dummy and will be overwritten).
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Mar 8, 2010
I have a busted XP notebook, no CD, no boot from USB. I have the option of booting from network, my provider wants to charge me to set up a static IP address I'm hoping to just plug in to my working 8.04 install with a cat5 cable or through a simple workgroup switch & get the basics installed where would I find such a procedure?
the gateway notbook hangs, part way through the restore [xp] process, I can only get to bios & restore, no dos prompt I don't care about any of the info or having XP I know the HDD may be bad
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Jun 3, 2010
I have my Mythbuntu 9.10 environment installed on an old 160GB PATA disk and have just purchased a new 64GB SSD that I want to transfer my installation to.In the past I've just used ddrescue to clone disks, however in this case the source disk is larger than the destination disk so it won't work. I only have a few GB of actual data on the 160GB disk, so the 64GB SSD is definitely going to be enough for me.
I guess I need someway of either cloning so that only the actual data and not the partition is brought across, or possible shrinking the partition(s) first on the source drive and then using the same ddrescue method I've used in the past.Just looking for some assistance on what method is the best/most reliable?
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Oct 2, 2010
I would like to replace my old 100gb boot drive in my server with a new SSD...for obvious reasons. So what is the best way to clone the existing installation (10.04 desktop) from the old boot drive onto the new SSD? I have read some guides online that suggest using the live CD and various software packages but most of them say it will only work if you are cloning to a disk of the same size or larger, nobody seems to address taking an installation from a larger volume down to a smaller one - in my case a 100gb IDE onto a 30gb SATA SSD.
As this is a datadump, the only drives I really care about are the various 1.0/1.5tb drives that actually store the data, the OS drive contains nothing more than the standard OS, samba/webmin and a few monitoring tools. So I guess it's not the end of the world for me to start fresh and install 10.10 next week, but I would like to know for the sake of this upgrade and future ones if anyone can be of assistance. basic specs if needed: Athlon64 X2 3800, 2gb DDR500, Asus A8N SLI Premium (Nforce 4/Silicon Image 3114R RAID controller). OS is on a 100gb IDE (WD1000BB-00C) and I would like to toss it on a Kingston 30gb SSD (SNV125-S2/30).
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Nov 8, 2010
I bought an 1tb hard disk today and cloned my old 160gb ubuntu install to the new disk using gddrescue (from this tutorial [URL]) and everything worked fine. The problem is that I can't resize my home partition to fill the rest of the disk. I've tried using a live-cd and booting from my 160gb hard disk but I still can't resize the partition.
Here's the "sudo fdisk -l" output:
Quote:
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
[Code]......
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Aug 18, 2009
I have fedora 10 and it has been working fine for over 6 months. Today I did the system update. After the update, I rebooted the system. Now, it hangs displaying the message "Not cloning cgroup for unused subsystem ns".
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Aug 9, 2010
The company I work for use Ubuntu on the PC's that control the system they manufacture. To simplify and speed up the OS install we use a standard PC (all the same hardware) and install a disk image on each system. The disk image was produced from one of the systems and the network settings were set to use a Static IP
However every time we clone a system the network settings change from the static IP settings to Roaming Mode.
why this happens or if it is possible to have the static IP settings remain after the clone?
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Aug 6, 2010
I have used GParted several times but I only know how to clone a single partition. I am looking for a way to clone and entire drive that has several partitions, along withthe MRB, unpartitioned space and everything else in one step. I have a 500 GB drive that is going out and I want to clone it to a 1 TB drive so I don't have to reinstall 3 different OSs and fix the GRUB. One of the other OSs is on anther drive so I'm not sure that it would work even if I can clone everything exactly. I'm not sure if the drive that is failing is the one with the MBR on it or not. how to do this in GParted or know another good program I can run from a live CD to do this?
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Sep 25, 2010
There is a way to have a CentOS installation very very minimal?Not like Damn Small Linux, but similar (as footprint)My need is create some Virtual Machine that only have BIND and SSH on it.
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Nov 19, 2010
I tried to install php from source file on centos server and i got the error as # ./configure --with-apxs2=/usr/local/packages/apache/bin/apxs --with-mysql --prefix=/usr/local/packages/apache/php --enable-force-cgi-redirect --disable-cgi --with-zlib --with-gettext --with-gdbm
checking for specified location of the MySQL UNIX socket... no checking for MySQL UNIX socket location... /var/lib/mysql/mysql.sock checking for mysql_close in -lmysqlclient... no checking for mysql_error in -lmysqlclient... no configure: error: mysql configure failed. Please check config.log for more information.
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Feb 13, 2010
I used proprietary software (acronis trueimage) to clone an Opensuse 11.1 machine, onto another machine with somewhat distinct hardware (different motherboard, less memory). I expected to have to change entries in /boot/grub/menu.lst, /etc/fstab, etc. I was told a good way to do this was to use the Opensuse DVD's "repair installed system" feature.
When I ran the repair, I was informed that "bootloader configuration file contains errors". I attempted to re-install the bootloader, but received this unhelpful error: "An error occurred during boot loader installation. Retry boot loader configuration?". When I boot the system, I just see the text "GRUB ", followed by a flashing underscore character.
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Jun 1, 2011
I tried to install Syslog-ng-3.2.4 in Centos 5.6,when i need to start the deamon syslog-ng =>Failure and i have this message:
Code: [root@RelaisXXX etc]# service syslog-ng start Starting syslog-ng: Your configuration file uses an obsoleted keyword, please up Your configuration file uses an obsoleted keyword, please update your configurat
Error creating persistent state file; filename='/usr/local/var/syslog-ng.persist Starting Kernel Logger [FAILED]:
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Nov 5, 2010
i am trying to install ffmpeg on centos machine. i need a source installation for this. i used FFmpeg 0.6.1 .tar.gz file for this. Also i want to install this with maximum codec support. when i used the configuration option as
./configure --prefix=/usr/local/ffmpeg --enable-shared --enable-gpl --enable-libx264 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-pthreads --enable-libvpx --enable-librtmp --enable-x11grab --enable-version3 --libdir=/lib64 --enable-nonfree
i got an error as ERROR: libopencore_amrnb not found. i tried to find this package but it was utterly failed.
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Mar 30, 2011
I am installing CentOS 5.5 64 bit on a HP ProLiant server. The server has a configuration of 2 TB(500x4) HDD and 8 GB RAM. RAID 5 is enabled and mirroring is also going on. I made 7 partitions. Those are:
/boot - 200MB
/ - 80GB
Swap - 20GB
/usr - 100GB
[code]...
The problem i am facing is it takes too much time to format 100GB partitions while installing packages (during installation).
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Mar 17, 2009
I'm an OS X user that's just acquired a CentOS 5.2 server. The server contains a basic installation of CentOS 5.2 with OpenSSH already installed, which I use to connect to the server using OS X terminal. I have no physical access to the machine and if I somehow cripple OpenSSH I will need to pay a technician to fix the problem for me. So I'd like to get the instructions straight before I go in and mess around with the system.
I want to install a package that will allow me to add additional users so that they can upload files but not mess around with the system configuration. From searching on google rssh seems to be a viable path. So I'd like to go with that unless there's a better option.
I came across these tutorials: SFTP Setup for CentOS 4.5-5.x and How to: Restrict Users to SFTP and Block SSH Shell Access with rssh. But I haven't followed the instructions in either yet. I'm unsure if I'll be able to execute all of the steps remotely without compromising my root account's SSH access.
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Jun 16, 2010
I need to manager printers from shell. The version is Centos 5.4. At this moment i cannot manager printers, and somebody told me that i need to reinstall centos. Is it possible to do anything to reactivate that property, without reinstalation?
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Jul 16, 2010
I have downloaded CENTOS 5.5 32-bits ISO and burnt in a CD. While trying to install it in VMplayer, the installation is started automatically without asking me to input anything.
How can I stop the auto installation? Or I have downloaded a wroing image?
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Feb 4, 2011
I have a CentOS server that has all of the applications and security settings that I want. I would like to create a bootable ISO image of that server that can be installed across a wide variety of hardware platforms. What are the recommended tools for doing this with CentOS?
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Jun 1, 2009
I have a problem with compiling of mod_ruby-1.3.0 After a succesfull configure i get a error in the make, it say "make: *** [apachelib.o] error 1" . Here below you can find the results of de configuring and the make.I was following the roles in Howtoforge " The perfect server - Centos 5.3" everything goes perfect till mod_ruby-1.3.0
./configure.rb --with-apr-includes=/usr/include/apr-1
checking for a BSD compatible install... /usr/bin/install -c
checking whether we are using gcc... yes
[code]....
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Jul 26, 2010
is it possible to join Windows Server 2003 to CentOS 5 Cluster?
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Feb 22, 2011
when I reboot the server with centos 5.5 the SMB deamon doesn't start?
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Sep 17, 2010
i have a quick question about using plesk on centos 5.x server and installation of ssl certificates. if anyone out there has expertise with above,
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