RAID Mistake

Hello, I am wanting to eventually migrate from software RAID to hardware.
I remember one time I attempted to migrate a system with software RAID to a non-RAID system but of course it crashed because it was expecting RAID at the new location.
I need to be able to copy an entire filesystem from a software-RAID system without this being an issue, so mainly I need to know which files/folders to skip.
Thanks in advance.

Hi All

Please could someone assist me with a software raid 5 array issue i am having?

About a week or so ago i was asked to have a look at a mate of mine's Company Server that had crashed after a power failure - no ups and close to 9GB data with no backup.
HP Proliant mini server running OpenMediaVault v1.9. with a software raid5 setup consisting of 4x 3TB Western Digital Hard drives


The 80GB boot drive crashed (hardware malfunction) so i replaced it and installed the server with OpenMediaVault 1.9 as was previously installed. When starting up however i noticed that none of the shares were available and upon closer inspection discovered that the raid to had crashed. I therefore re-assembled the raid but now have no file system nor any partitions on any of the 4x drives.

This is about the extent of my knowledge base when it comes to Linux, and again i don't know that i'd want to risk it with no backup of the data.

I have run fsck /dev/md1, but this reports an error 2 while executing fsck.linux_raid_member not found.
Please i am desperate for some advise!

Thanks
Wayne

hi guys,

i want to back up my centos server that has a few virtual machines on it...i read that some people were saying dd is a very good way to do this. but a lot of people dont cause of fear of the command line.

i would like to write a script that backus up the entire hard drive to a ext usb hard drive.

i have a couple of questions though.

1) am i better off using a cloning software like acronis or storage craft.

2) can dd also restore a system to a bootable state or is it really just a backup.

3) can you still use the system while it is backing up?

thanks...

Recently I installed Ubuntu 14.04.2 LTS Shortly after the 'Software Centre' became corrupted. I made the mistake of deleting it in hopes of being able to restore it. It has been 15 years since I used Red Hat Linux 5, so my Linux for Dummies book doesn't help much. I can study and download .pdf files from the Internet but I want the original back. What command sequence or method can I use to completely restore the 'Software Centre'??

I had Kali and Linux Mint installed and erased Mint to install Centos7. Grub was totally deleted and I could only boot into grub recovery. Many hours of cussing later I got Kali back, I can see Centos filesystem mounted on my desktop and in disk utility. I never finished setting Centos up as I was rushed out the door which probably caused the problem in the first place, for some reason it's raid and although it's 2 harddrives they are not set up for raid and 1 is Kali and 1 is Centos. The Centos boot folder is still empty after running grub-install on it twice and it does not show in grub. How do I get Centos as an option?

Hi All,

I recently decided to tryout Linux and dual booted my laptop (originally just had windows 8) with Xubuntu. Now I want to try out Kali Linux. So I downloaded Kali and made a bootable USB, the problem is that when I try to boot from the USB it just brings up the grub menu asking me to select Xubuntu, Windows etc. I've changed the boot menu in the BIOS but that has no effect.

I've tried booting into windows and the restarting by holding shift but when I select the usb option it just says:

"system doesn't have any USB boot option. Please select other boot option in Boot Manager Menu"

and then returns to the grub menu. I don't understand because I used a bootable usb to install xubunto?

I'd be really grateful if anyone can help me out with this!

Thanks

Hey Newbie Here

Have A Acer C720 Chomebook With An Upgraded SSD 128GB, Run Ubuntu Threw Cruton But Dont Know To Much

Have Legacy Boot And Really Into Messing Around

Looking For A Bootable Virtual Machine OS, What I Mean Is A Small Operating System With Enough To Support Hardware And Qemu Or Better Installation, Size Dose'nt Matter And Hopefully Something Already Put Together But I Can Understand Instructons

I Once Found A Tinycore Iso That Was Bootable And Booted Straight Into A Partition-er - A Bootable Partition-er And All Around Bootable Disk Management Os..... I Love The Idea Of Bootable Software, It Was Only Like 40+ Megs

Ive Looked All Around Google And Couldent Find Anything

Tried To Make one Myself And Cant Understand How To Put Together Something Like That

Even Just A Terminal That Boots Qemu With The Right Command Or Something That Compares To A Bootable Tinycore Program

Thanks, Open To Better Newer Ideas , And Anything Helps

Hi all!! Im new in this forum and also new at linux !!

I am installing an application that includes automatically the instalation of CentOS 6.3.

The server that hosts this application and OS had a power outage and then when i turn on the server again i get the error that you can see in this pictu http://postimg.org/image/7opm0xzel/

I have 2 disks in the system, 1 for the application and SO and other to store call recordings (thats what the application do, record calls!).

If I re-install the system it has no problem!! But i dont want to re-install the system every time i have a power outage because i lost too much and important information.

I have installed this application in other server and had no problem with power outage. In this server the diference is that it originally had raid and i "remove it" frome the BIOS. Maybe here is the problem??

Anyone can help me?? Remember im really new in linux !!

Hi,

I am new to the installation of Linux, and wish to install 3 different distro's on the same hard disk.

I have installed Centos 7 successfully as follows :

The /boot is /dev/sda2

/dev/sda1 is listed as unknown so i assume it is the Master Boot Record with Grub installed. I do obtain the option to boot to the various kernels after updating the OS.

/dev/sda3 is a Linux LVM with the various partitions i required.

When i installed the CentOS 7 the installer stated an error about the bootable partition - which was effectively /boot, so i moved this to /dev/sda2.

What i am not sure about is that if i want to install 2 other Linux OS's will i run out of /dev/sdaX assignments ?.

I read somewhere that there are 4 maximum that can be used a /boot (SDA1, SDA2, SDA3, SDA4), so does this mean i can only install one other OS ?.

Any guidance gratefully received. Thanks.

Regards,

Richard.

Hi,
I'm very new at this. This is probably to long. This is the first time I've posted a question in a forum like this. Don't know yet how to state this kind of problem concisely.
-The problem: my Linuxmint Rebecca 17.1 won't boot up. I believe I deleted an essential file from the OS and need to reinstall Rebecca. But, here's the big thing I feel desperate about. I need to do this (reinstall) without destroying (overwriting, erasing or such) all my data, and thus losing all my research and writing project files, audios and so on, my life.
-From my newbie view, very incomplete view,, here's what I think I was doing just before the catastrophe.
-I got a dialog box telling me I had twenty packages that were broken.
-I tried several things involving the update manager, which I can't remember now, to resolve the broken package thing.
-I kept getting a dialog box asking me, in effect, if I wanted to remove these broken packages, which I thought I should probably do.
However, one of these broken packages/files was labeled as an 'essential file.' And, the dialog box asked, in effect: "Are you sure you want to remove this essential file?"
Well no, of course, I didn't want to remove an essential file, so I spent an hour or so trying to get that 'essential file' off that broken package list. I couldn't find a way to do it.
Finally, super frustrated, I went ahead and removed all the broken packages, and along with those, the 'essential' file. (this was the mistake, a huge mistake on my part).
-And ta da. No more Rebecca. I exhausted every approach I know to reboot, but it wasn't going to happen. Quess the 'essential' file I removed was 'essential.' :-).
-I put Rebecca on a USB. Finally got the BIOS to boot up the Rebecca USB. So, I can run Rebecca from the USB. It looks like I could install her again on my desktop from this point. But, I don't dare, without knowing how to do so without further shooting myself in the foot.
Any direction? I would be so grateful if there was. Thanks