Ubuntu :: Upgrading - Changing Distro W/software RAID?
Apr 27, 2010
Building an Ubuntu file server that would be running software RAID5. While I think I have most of it figured out, I'm still a bit fuzzy about this: what happens if I trash or otherwise have to re-install my OS (because I decide to upgrade to a newer version, switch distros, or whatever)? Would the new OS be able to "see" that there was a RAID5 array on the disks and make use of it? Or would I for sure lose all of the data on the array?
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Jun 14, 2010
We work in school, and create linux distro for her. Manager wanted "Original name for distro", is "Education OS of School Patrik". How change name in distro? "Ubuntu" on "Education OS....".
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Jun 9, 2011
I had to shutdown the computer while upgrading from Lucid to Maverick as it froze(bug in X11) and then when I start the computer I get kernel panic messages. I used a LiveCD to backup my files and I was wondering if there is a way to log in or reupgrade the Ubuntu in some way from the liveCD.
I don't want to do a fresh install as there are a dozen things I had installed and configured in my system the last 1-2 years.
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Sep 8, 2010
Is there a DE/distro neutral (I guess CLI) method of changing a given user's user ID on a Linux system? I want to set all my systems to have the same UserID so my external hard drive stops giving permission errors when moving between them.
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Aug 4, 2011
I'm upgrading my PC by setting up a (fake) RAID 1 array. I've backed up my old hard drive using Clonezilla and tried restoring it while the array is active. However, I can't seem to fix the bootloader. The Ubuntu 11.04 LiveCD doesn't see the RAID array.
I have an ASUS M4A88T-M/USB3 motherboard that uses Advanced Micro Devices RAID option ROM utility to manage the array.
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Jul 10, 2010
Recently I did a wget for DreamLinux 4beta6.3, which I now cannot burn to a disk. Another issue with linux in general being just a hobby. Why could a dev not set it up where you could just wget the upgrades for the main distro files themselves ?? We already do this when upgrading the apps, so why not the distro? Why could you not start at alpha, and just slap do a rolling upgrade into rc and beyond?
I understand the potential stability issues, but why can't we ghost the drive and hence have a backup on hand and then do this as outlined, and hence do a single install from alpha the distro's grave? I am wasting four months on "Setting Up" each install, only to wind up reinstalling again. This happens in every variation I have come across. Even in stable versions, the rolling upgrade just craps the install, and the major do overs hijacks all my data.
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Feb 21, 2010
I already have a 300 GB SATA drive with Ubuntu 8.04 installed on it. It is currently running off my mobo's onboard SATA 1.0 Raid Controller. I recently purchased a SATA 2.0 Raid PCI controller that I will be putting in the computer and 2 new 750 GB Western Digital Caviar Green Hard drives. I wish to add the two drives in a Raid 1 configuration to store all my Pictures, Files, and Movies on. Every instruction and tutorial I can find on setting up Raid on Linux assumes you are performing a fresh install on Linux and gives no tips or instructions for current installations. I already have Ubuntu installed and do not wish to have to reinstall it. I want to leave my installation on the 300 GB drive and just add in the 2 750GB drives for storage.
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Nov 19, 2010
Currently I have a 1TB drive that has Ubuntu installed and is used for all of my storage, vids music etc.After speaking with a friend he suggested I change the operating system to a smaller drive and use the 1TB for storage only. His reasoning for this is that the disc with the OS on it receives much heavier use so storage should be kept separate.If that's true I have a 250GB drive that I could use as the boot/OS drive.What I was considering doing was to make the 250GB drive the boot disc in BIOS, then install Ubuntu from the Live CD onto the 250GB. After doing that my plan was to use gparted to wipe the Ubuntu OS partition off the TB drive to leave it as a storage only drive.
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Jun 29, 2010
From what I have understood, trying out different Linux distros is one of those things that a Linux user just needs to do now and again.
So what is the "best" way of keeping your home folder intact? Should I just copy the whole home folder to a separate storage space, install a new distro (I'm thinking going from Ubuntu to Suse) and then just past it in the newly installed distro? Or are there some other, more "refined" methods?
I thought one's home folder contains a lot of config and settings files, but they would surely just be applicable to the original distro!?
I know I can try out several distros via live CDs, which I have done, but when you've taken that next step and actually want to install another distro as your main Linux operating system.
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Jan 24, 2010
I really want Python 2.6, which is not part of the standard Hardy packages. I just tried installing the Python 2.6 Linux distro direct from python.org. While I didn't see any error messages during the installation, I'm still defaulting to Python 2.5, and 2.6 installed to a different folder than 2.5.
A secondary wish: I would also like GROMACS 4.0 instead of 3.3. Again, Karmic has it as standard, Hardy doesn't.
I'm running dual hard drives in a software RAID1 configuration. My system is Linux only, so I have no Windoze compatibility issues to worry about.
Still, I've gathered that upgrading in the presence of RAID is different, and more problematic, than a standard upgrade.
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Apr 22, 2010
Ran 'do-release-upgrade -d'on my server running Hardy.No problems during the upgrade.Rebooted after the upgrade completed, and I was presented with the new plymouth screen. This sucks for servers.It sat there displaying the logo for ~5 minutes.Hit CTRL+ALT+F1 through F8 and didn't see anything on the virtual consoles.Finally figured out that I had to hit ESC on the plymouth screen to actually see what was going on.It said /dev/sdi1 had problems along with /dev/md0.It sat there forever with no fsck status and no HDD lights blinking.
SysRq+REISUB and tweaked the boot parameter to remove 'quiet splash' and appended 'S' for single-user mode.Got the attached screenshot.The box has been sitting like this for ~15 minutes.Not entirely sure what to report a bug against at the moment. Plus the somewhat-new requirement of running 'ubuntu-bug' is pretty retarded in this situation. (Yeah, I know I can add some string to the URL to get around it.Why is it such a pain in the *** to report a bug?)I'm going to do some more digging to try and find out what is dying during boot.The new boot process is a bit of a mystery to me still, so if anyone has pointers or any devs want more detailed information,
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Mar 28, 2010
I want to upgrade from another distro to ubuntu server for a few reasons. The only problem is I have a lot of data that needs to survive. here is how my computer is setup. I've 5 drives on the computer,
A- 10gb drive for OS and swap only, no data
B,C,D,E - 4x 500 GB drives in a LVM. they make up one large drive with xfs and this volume has about 1.2 TB of data. there is nothing fancy on it, no encryption and no software raid of course the little 10gb drive can be formatted no problem, but the LVM needs to be migrated over intact.
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May 20, 2015
I have a fresh install of jessie and I'm thinking about starting using testing instead. I tried to use the testing installer but it was so buggy I finally gave up and I now have some questions.
My sources.list currently looks like this:
Code: Select all# deb cdrom:[Debian GNU/Linux 8.0.0 _Jessie_ - Official amd64 NETINST Binary-1 20150425-12:50]/ jessie main
#deb cdrom:[Debian GNU/Linux 8.0.0 _Jessie_ - Official amd64 NETINST Binary-1 20150425-12:50]/ jessie main
deb http://ftp.se.debian.org/debian/ jessie main
deb-src http://ftp.se.debian.org/debian/ jessie main
deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
# jessie-updates, previously known as 'volatile'
deb http://ftp.se.debian.org/debian/ jessie-updates main
deb-src http://ftp.se.debian.org/debian/ jessie-updates main
- I get that I should change jessie but to what, testing or stretch?
- Is it considered reasonably "safe" to upgrade a system by changing sources.list and then running apt-get update && apt-get upgrade?
By safe I mean something along the lines of that given that I have a fresh install of jessie is there a great chance that the upgrade will break my system?
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Mar 9, 2011
We have been using Ubuntu Server at our department since several months now. It hosts a website, e-mail and nfs(only intra).
It was set-up as RAID 0 with two 1TB Hard drives but I want to change it to RAID 1 for fault tolerance. Is it possible to change existing RAID level? If yes can someone point me to the proper place?
I tried "mdadm" documentation and level set option is available but no explanation available that whether it is only while creating the array or it can change the level too.
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Feb 1, 2011
Could any RAID gurus kindly assist me on the following RAID-5 issue?I have an mdadm-created RAID5 array consisting of 4 discs. One of the discs was dropping out, so I decided to replace it. Somehow, this went terribly wrong and I succeeded in marking two of the drives as faulty, and the re-adding them as spare.
Now the array is (logically) no longer able to start:
mdadm: Not enough devices to start the array.Degraded and can't create RAID ,auto stop RAID [md1]
I was able to examine the disks though:
Code:
root@127.0.0.1:/etc# mdadm --examine /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
code....
Code:
mdadm --create --assume-clean --level=5 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
As I don't want to ruin the maybe small chance I have left to rescue my data, I would like to hear the input of this wise community.
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May 3, 2010
Building an Ubuntu file server that would be running software RAID5. While I think I have most of it figured out, I'm still a bit fuzzy about this: what happens if I trash or otherwise have to re-install my OS (because I decide to upgrade to a newer version, switch distros, or whatever)? Would the new OS be able to "see" that there was a RAID5 array on the disks and make use of it? Or would I for sure lose all of the data on the array?
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Jan 9, 2010
nominate a disastrous distro from past or present that was simply AWFUL and what exactly was so bad about it?
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Sep 6, 2010
I have a linux box set up as a multi-purpose server for my home with three Windows client PC's. The linux box is based on a slightly modified Slackware 9.0 distribution using Linux 2.4.20 and an unfortinately old, slow AMD processor with a miserable 512Kb RAM. The linux box serves the CIFS file system to the Windows boxes, runs the SQUID HTTP proxy, the Apache web server, a print server, does masquerading, mail serving and a very effective firewall using iptables.
This system, although slow, has run perfectly for several years.Let me say that again - This system works perfectly.I had decided that now is the time to upgrade the hardware, so I bought a Gigabyte LGA775 motherboard which has two 1Gb network interfaces on it, an ASUS 256Mb PCI-E display card, 2Gb of DDR3 RAM, an Intel Core2-Quad processor and a bunch of 500Gb SATA drives to set up a RAID5 array (but I intend that the system boot off one of several 40Gb PATA drives I have).I set up the processor, motherboard, display card, RAM, a SATA DVD Drive and a 40Gb PATA hard disk in a "breadboard" layout and installed distro 13.1, being careful to set up the static IP for the local network, dhcpcd to get an IP address from the cable modem (my internet connection) and to enable ip_forward in the network configuration.
Then I installed a script invoked by /etc/rc.d/rc.local which installed all the SAME iptables rules as my old Linux box. There was one minor glitch when I had to change 8 occurrences of "-d ! $LOCAL_NET to" "! --destination $LOCAL_NET" but that was no problem. I also set up /etc/resolv.conf, /etc/hosts , the BIND server files etc. etc. exactly as in the old box.
I am able to ping mirror.aarnet.edu.au (this is at the heart of Australia's internet hub network - if it's down the whole bloody thing is down) and have the system find the correct IP from the designated nameservers and contact that server with a return trip time of 35ms. I am able to run a telnet session from one of the Windows boxes and edit files on the Linux server. So both network interfaces work and I've got them the right way around.I am able to run FTP on one of the Windows boxes and connect through to mirror.aarnet.edu.au, although it seems to hang when I try a DIR (but then so does the old linux system).
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Sep 29, 2010
i am trying to upgrade to ubuntu 10.04 from 8.04, and am getting this warning:"Upgrading may reduce desktop effects, and performance in games and other graphically intensive programs.This computer is currently using the AMD 'fglrx' graphics driver. No version of this driver is available that works with your hardware in Ubuntu 10.04 LTS.Do you want to continue?"should i continue? i have no idea what a 'fglrx graphics driver' is
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Jul 18, 2011
I have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.
Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.
I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.
I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.
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Jun 29, 2011
migrate an installed Ubuntu system from a software raid to a hardware raid on the same machine? how would you go about doing so?
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Sep 1, 2011
is everytime i reboot , my keyboard is reset to USA. im in canada & it pisses me off each time i need to change it also.all my options on EMESENE is the same issue always RESET.it's like if nothing keeps the changes once rebooted.
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Nov 26, 2010
I have installed Ubuntu on my m1530 since 8.04 and currently dual boot Win7 and 10.10. I would like to dual boot on my PC, but I have run into a problem. I am not a pro at Ubuntu, but this problem I can not solve by reading forums like I have in the past.
I realize this is a common problem, but I have noticed people having success.
I have a M4A87TD EVO MB with two Seagate drives in Raid 0. (The raid controller is a SB850 on that MB) I use the raid utility to create the raid drive that Windows7x64 uses. I have 2 partitions and 1 unused space. Partition 1 is Windows, partition 2 is for media, and the remaining unused space is for Ubuntu.
I am running ubuntu-10.10-desktop-amd64 off a Cruzer 16GB flash drive that was installed via Universal-USB-Installer-1.8.1.4.
My problem like so many others is that when I load into Ubuntu, gparted detects two separate hard drives instead of the raid. I read that this is because kpartx is not installed on 10.10. I then went in LiveCD mode and downloaded kpartx from Synaptic Manager. Gparted still reported two drives. I opened terminal and run a few commands with kpartx. I received an error. (Forgive me I didn't write it down, but I believe it said something about a communication error. I will try again later and see.)
Currently I am reflashing the Cruzer with a persistence of 4GB. I am not familiar with this process, but I understand that my LiveCD boot will save information I download to it. I decided to try this method because I was going to install kpartx and reboot to see if this made a difference.
I am looking for any suggestions on a different method or perhaps someone to tell me that the raid controller or some hardware isn't supported. I did install ubuntu-10.10-alternate-amd64 on my flash drive, but fail to get past detecting my CD-ROM drive since it's not plugged in. If this method is viable, I will plug it in. I also watched the ..... video were a guy creates Raid 0 with the alternated CD, but it wasn't a dual boot and didn't use a raid controller from a MB.
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Mar 22, 2011
How long does hardware Raid card (raid 1, 2 drives)take to mirror a 1 TB drive (500gb used)?Is there a general rule of thumb for this?4 hours? 12 hours? 24 hours?
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Aug 3, 2010
I am trying to connect a RAID Box to the server via LSI 8880EM2 RAID controller.The raid box is FUjitsu Externus DX60 with raid 1 configured.The server is Fujitsu Primergy SX300 S5 with LSI 8880EM2 RAID card.The external raid box is being recognised by the raid controllers bios.
The server runs CentOS 5.5 64bit. I have installed the megaraid_sas driver from LSI website and MegaCLI utility but CentOS still fails to see the box.MegaCLI utility, when launched from CentOS, recognises the raid box, CentOS does not(no mapping being created in /dev).
I have also tried to create a logical RAID0 HDD on one physical HDD(as seen by MegaCLI) with MegaCLI utility in CentOS.The result was success and the new logical drive could have been used, but when restarting the server, the controllers' bios fails with an error (not surprised(one logical RAID0 on one physical HDD)) and configuration is being erased.
Has anyone tried connecting 8880EM2 controller to a raid box with raid configured on the box, running it all under CentOS and what were the results.
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Jun 12, 2010
I have two 1TB hard drives in a RAID 1 (mirroring) array. I would like to add a third 1TB drive and create a RAID 5 with the 3 drives for a 2TB system. I have ubuntu installed on a separate drive. Is it possible to convert my RAID 1 system to a RAID 5 without losing the data? Is there a better solution?
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Jul 18, 2009
how can I create RAID 1+0 using two drives (one is with data and second one is new). Is it possible to synchronize data drive with empty drive and create RAID 1+0 ?
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Dec 15, 2010
Lubuntu is nice - but it seems the LXDE version is not as up to date as Fedora LXDE Spin or even Debian squeeze with LXDE installed. I do like Chromium on Lubuntu though... its faster and a nice touch. I am looking for a lightweight 64-bit distribution for my main laptop (it is by no means "old" or "low spec" but I like that Lubuntu starts up in like 2 secs).
LXDE version seems not to be recent (esp in 10.04 version which seems to work more stably for me - with Nvidia drivers etc)64 bit install is currently a pain - requires first install of minimal CD or alternate CD both of which required wired Ethernet, then install of lubuntu from PPA. Native 64-bit support would be nice. Linux Mint LXDE, for example, is also only 32-bit.
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Feb 28, 2011
If I have a windows installed in raid-0, then install virtualbox and install all my linux os,s to virtualbox will they be a raid-0 install without needing to install raid drivers?
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Dec 10, 2009
I am going to be using CentOs 5.4 for a home storage server. It will be RAID6 on 6 x 1TB drives. I plan on using an external enclosure which is connected via two SFF-8088 cables (4 drives a piece). I am looking to try and find a non-RAID HBA which would support this external enclosure and allow to use standard linux software raid.
If this is not an option, I'd consider using a hardware based raid card, but they are very expensive. The Adaptec 5085 is one option but is almost $800. If that is what I need for this thing to be solid then that is fine, I will spend the money but I am thinking that software raid may be the way to go.
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