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Old 06-29-2015, 05:12 PM   #1
esyson
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Question HP MX310 Linux Server Backup Failure (How do I make a bootable CD? Recovery Image?)


I am definitely a guppy here.

I am working with an HP ML 310 Proliant Server, running CentOS release 5.11 (Final)

I installed the latest 64-bit versions of mindi, mondo, and mindi-busybox.
mindi-3.0.0-1.rhel5.x86_64
mindi-busybox-1.21.1-1.rhel5.x86_64
mondo-3.2.0-1.rhel5.x86_64

I mounted a NAS drive directory to /mnt. The only way to do this that I could get working was via mount.cifs. I can transfer files both to/from the Linux Server, via /mnt.

I tried to run mindi, and it gave me all kinds of errors. I posted info at
http://sourceforge.net/p/mondo/mailm...506&viewday=25,
but to no avail.

I burned the mindi.iso image to cd anyway. I could look at this cd's contents on the server. It appeared to look good. But what do I know? Next to nothing!

Anyway, when I booted from the mindi cd. It didn't bring up linux. The server booted only to the boot prompt:
boot:
Is this the built in bootloader prompt? Perhaps I needed to issue another command. I expected a rudimentary Linux kernel to boot, but this didn't happen. Obviously the mindi failures indicated critical issues.

Also no matter how I tried to run mondoarchive, it caused a "Segmentation fault".

I really need to back up the Server before I make anymore changes to it.

I would really like to create a bootable CD, and backup the Linux Server totally, in case a disaster occurs. Here the most likely disaster to occur would result from me trying to install SW and/or update the OS.

Any help would be greatly appreciated. I am definitely at a loss as to what to try next.
 
Old 06-30-2015, 02:41 AM   #2
mralk3
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HP MX310 Linux Server Backup Failure (How do I make a bootable CD? Recovery Image?)

man dd

You can create a Bootable ISO with the dd command. No need for fancy back up software. Copy the image to disk using a slow copy of 2x using the cdrecord command. If copying to a USB stick, be sure the media is large enough for the ISO back up, and use the dd command again. I forget which command is used to copy to DVD media, but google.com will have that answer.

Edit: dd will make an exact replica of the live file system. It may or may not boot on a different machine than the original machine. You will probably want to create the image locally first, and then copy it to the remote server second. Running dd and having it save over the network will take longer.

Last edited by mralk3; 06-30-2015 at 02:44 AM.
 
Old 06-30-2015, 03:42 PM   #3
jefro
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I doubt you want a bootable cd. Almost any live cd/dvd/usb out there could be used to run common tools.

Backup is not clone. Since you have public access to Centos media you won't need that usually but keep it around.

You can clone with dd (plus compression) but it will not let you boot directly. You can use almost any live media to restore it. Very time consuming. It will create a bit by bit image of your system.

You can consider using file by file instead of dd's bit by bit for faster results. People use tar, rsync, cpio generally or use things like Gparted to copy off partitions. I'd think one of those choices may be worth looking at.
 
Old 06-30-2015, 06:42 PM   #4
mralk3
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As jefro stated, a tar and rsync will work just fine. Especially since you already have NAS. I run rsync as a cron job to my NAS.

A bootable recovery disk will be hard to create and it will only boot on the original machine (the dd route).
 
  


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