CentOS 5 :: Create A Backup Image Of A 5.6 Server?
Dec 16, 2010
I have a CentOS 5.5 server that has just recently been updated to 5.6 running PostgreSQL 8.4 and Drupal for an internal website. The server is also acting as a shared network storage between the Linux server and Windows desktops with Samba.
I just recently purchased a license to run Symantec Backup Exec System Restore 2010 for Linux and the only operating systems that are supported are RedHat and Suse Linux.
Does anyone know of a nice open source solution that we can use to create backup images of the server?
In the event of a server crash, we want to be able to rebuild the server via a bit-by-bit backup image.
Have been playing with Centos 5 and finally got it installed and have done most of the updates. Before I proceed much further it would be nice if I could create a backup/install disc of how it is now. No Data,just the setup and software used etc.Have a dvd rw on the server.I recall mondo rescue installed years ago on a linux server we used.
I have a CentOS5 server with a 1tb hard drive.There is only 80gb of data on that huge drive and now I want to make a bare metal recovery backup using AcronisMy question is, how can I estimate the amount of time the backup will take and the size of the image file? Is it based on the size of my drive or is it based on the amount of data on the drive?
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?
I'm trying to set up a virtual machine environment in Centos5.5. My hardware fully supports virtualization, and I'm running qemu as the hypervisor with Virtual Machine Manager as the GUI to manage and create VMs. Host hardware is a Dell PowerEdge T710, with a quad core Xenon processor and four 1TB disks in a raid 6 array.
Within the Virtual Machine Manager when trying to create a new VM, there is the option to not "allocate entire virtual disk now". What format is created when you "allocate entire virtual disk now" and when you don't?
I want to create a qcow2 image format, but it doesn't look like it is supported. Does anybody know how to create a VM with a qcow2 image format?
When you create a blank disk with "qemu-img create -f qcow2 disk.qcow2 3700G", it indeed does create a qcow2 image. However, Virtual Machine Manager is unable to read these images, claiming that it is 15 megs or so in size (which is what it actually occupies in host disk space until you try and put a VM into it).
Well I've decided to move all my data from one VPS to another, and Iwanted to know if there was a way from within Ubuntu to make a full system image backup,ch I can then just transfer to the new Ubuntu VPS, and restore it there ..Unfortunately my VPS control does not have any working backup option right now, so I can only make the backup manually from within Ubuntu, if there is a way to do it
I Acer aspire 3620 and would like to backup whole system. My laptop has a 40Gig hdd. Is there a way I can either create an image or copy(clone) to another computer just in case I need it. If it matters I have a spare 40 gig drive on the other computer. The reason for doing this is so that I can try a system restore and if anything goes wrong I want to be able to transfer back. Also if it is posible how could I put it back and be bootable.
I'm trying to create new RAM image file to get my server load raid1 module upon start, I was following redhat documentation & it suggested to use the following command mkinited --with=raid1 inited-raid1-$(uname -r).img $(uname -r) However after running this command I'm getting this message No Kernel available for 'inited-2.6.18-128.el5"
I have 4 different servers with exactly the same hardware. I set up one of them to have a centos install with all the basic stuff I'd like running on each one. I then created an image of the harddrive with the operating system, and stored it on an external drive. I used dd to copy the external image to one of the new machines. It worked fine, everything booted up as normal and with a few tweaks everything was great. The problem is that the drive is rather large (500gb) and it takes days for dd to copy it over. I decided to try a different route, I booted to a usb (using the linux distro on the ultimate boot cd pre-loaded with gparted). There are two partitions on the external drive, a small (100mb) partition which can easily be copied over with gparted, and the larger 480+gb lvm partition.
Gparted doesn't support lvm, so I used fdisk to create a new lvm partition on the new machine, and then pvcreate/vgcreate/lvcreate to re-create the same volume groups/logical volumes that are in the image on the external harddrive. I rsync'ed all the information over from LogVol00, and made the same swap partition LogVol01 (which took WAY less time). I disconnected the hard drive and renamed the volume group to VolGroup00 (initiall I named it differently, since linux doesn't like having the volume groups named the same). I can mount the LogVol00 partition and see all the files as they should be. But when I try and boot up, it doesn't even go to grub, I just end up with a blank screen and blinking cursor. How to make the drive bootable? Alternatively, a better strategy than using dd to restore this image??
I have a problem with the system backup. I need to create a system image using the command "tar", but my server has physical disks with LVM and I am executing "linux rescue" for recovering the linux image. After restoring the image on the new server reports "kernel panic", this is caused because the new server where I restored the image doesn't have LVM disks.
Is there a way/command to back up all data from a Red hat Linux 4 serve[Including user rpofiles, data, group info, encrypts] either to a Red hat Linux 5.4 machine or as an Image file or manageable resource?
when i use rsync command to backup my image file , it shows the following error message.
bash: line 1: /usr/bin/rsync: Argument list too long rsync: connection unexpectedly closed (0 bytes received so far) [receiver] rsync error: remote command could not be run (code 126) at io.c(463) [receiver=2.6.8]
The command which i used is rsync -avrl -e ssh cms@server:/data/cms/data/images/* /mnt/Backup/Intranet_cms_backup/images
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.
I had set up 4 virtual machines on centos 5.5 system where I directed the image locations to an external storage. I have lost the image files in the storage, but I have the image files that were copied from the virtual machine image location. I want to put up the same system on the same computer by copying these backup images. However, when I copy the image file to the same exact location and start the corresponding virtual machine I get "no bootable disk" error. When I increase the size of the image using "qemu-img" commands, I can get rid of this error, but get "error reading disk" error. Is there a way to overcome these problems, or is it not possible to restore a virtual machine by copying the machine image file under ..../xen/images?
We have some servers that run in very harsh environments (research vessel) that need to have high-availability.We have software RAID 1 for some measure of resiliency, along with proper data backups (tapes etc), however we would like to be able to break out a new server and re-image it (including RAID setup) from a known good copy if the hardware completely fails on the production box. Simplicity of the process is a big plus.I am interested in any advice on the best way to approach this. My current approach (relatively new to Linux administration, totally new to MDADM) is to use DD to take a complete gzipped copy of one of the RAID'ed devices (from a live CD): ode: dd if=/dev/sda bs=4096 | gzip -c > /mnt/external/image/test.img then reverse the process on the new PC, finally using Code:mdadm --assemble to re-create and re-build the array.
I'm currently in the middle of developing an automatic system which can provision Linux VMs automatically.Let's say I have a disk image which has a Linux distro installed on it. How would I change the root password on that, without having to boot the OS?It would be nice if I could just simply run passwd with some switch to point to the /etc/shadow file on the (mounted) VM disk image..
I'm looking for a simple solution to backup my CentOS Server (5.x) on a daily base to a mounted disk. I found the glastree tool but I have no clue if it will work on CentOS.All recommendations, tipps, hints and maybe scripts are welcome. Unfortunatelly I'm an Linux newbie and starting with Linux CentOS a couple of weeks ago
I would like to create a bash menu script for my home server For instance if i were to type ./script It would then bring up 3 options
a. Create a backup b. Restore files from a backup c. Quit
If you were to select a or b it should then ask you were you want to backup or restore from. And if i were to type in an incorrect letter i should get an error and take me back to menu. I have attepmted this a view time now and have magaged to get the menu up using parameters
I wish to use my laptop to create a system for my Soekris 4801. I don't want to take the server down for the lengthy install ( took 6 hours last time, Fedora 5 ). I want to create the image on a USB drive for the 586 Soekris server on my 686 HP laptop. Then scp the image to the Soekris and reboot and configure the server.
on my server I have atMail and a intranet site being hosted using mySQL for the database locally, and obviously backing it up would be a good thing. I got the backup package from the list if you use the add/remove software called dump-0.4.etc.. can't seem to find much on how to use it, set it up, nothing. Granted I could be looking for the wrong thing which I'm sure is the case. As of now it's looking like a USB drive is going to be my only option, that will change in the future as this "project" goes further (we are a windows shop trying out Linux, and the next step is going to be adding another server that's a file server at that point we'll probably go to NAS for the backup and then transer that to a USB for offsite/secondary backup).
I have re-installed our operating system (CentOS 5) ,what is the best way to restore our Samba server? Can it be as simple as copying the smb.config and smbpasswd files back into the /etc/samba directory? That's what I am hoping. If I just copy the smb.config and the smbpasswd files back to the samba directory will the machine trusts, users and passwords just work? If not, what is the proper procedure for restoring. Actually i want to make CentOS 5.3 as my Domain Controller, I want to test all Scenario in case of any disaster of DC before putting it into production environment. I have some queries as:
1. Is CentOS 5 is more stable than RHEL 5 etc.
2. How can i take back up of entire samba server if need it in case of any disaster. How can i restore it.
3. How can i use logon scripts like GPO in windows servers.
4. How can add users in samba server and linux at one time with one command.
5. tell me any Web based samba administration tool other than SWAT.