Ubuntu Installation :: Upgrade From Another Distro To Server - Migrating Existing LVM - No Encryption And No Software Raid

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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Ubuntu Servers :: Hardware Upgrade And Existing RAID?

Apr 20, 2011

I have an old server I build 7 years ago. I have a RAID5 with 5x2TB HD's and I'm planning a major hardware overhaul. My server currently runs on a Pentium4 3.2 Ghz (pre multicore technology) on a SuperMicro mobo. I'm planning to switch to an AMD Phenom II X6 1100T Black Edition Thuban 3.3GHz, 3.7GHz Turbo 6.

So here's the question. Can I just plug my drives to the new board and restart the RAID like nothing happened? I don't have space to backup all my data if I have to recreate the RAID from scratch.

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Server :: Software RAID On Existing LVM

Feb 9, 2011

Currently I have 3 hard drives
2pcs 10gb almost the same
1pc 20gb

I have a layout of
(10.2gb)
/dev/hda1 boot 104391 83 Linux
/dev/hda2 9912105 8e Linux LVM
(10.1gb)
/dev/hdb1 9873328+ 8e Linux LVM
(20.4gb)
(unpartitioned)

The two 10g is setup as lvm and I want to make raid1 using the 20gb hdd. Almost all I see is raid1 first in the internet.

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Ubuntu Installation :: Add 2nd Distro Entry To Existing GRUB In Puppy4.2.1?

Jan 2, 2010

i have puppy 4.2.1 installed on my hdd and have frugal installed a older version inside the existing puppy and would like to add it to the existing GRUB menu

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Server :: Creating LVM With Existing Raid - With Data On It

Apr 24, 2009

I have a system that has the following partitions:

Now SDC is a new drive I added. I would like to pool that new drive with the raided drives to give myself more space on my existing system (and structure). Is this possible since my raid already has data on it?

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Server :: Hardware Migration And Existing RAID

Apr 20, 2011

I have a RAID5 with 5x2TB HD's and I'm planning a major hardware overhaul. My server currently runs on a Pentium4 3.2 Ghz (pre multicore technology) on a SuperMicro mobo. I'm planning to switch to an AMD Phenom II X6 1100T Black Edition Thuban 3.3GHz, 3.7GHz Turbo 6.

So here's the question. Can I just plug my drives to the new board and restart the RAID like nothing happened? I don't have space to backup all my data if I have to recreate the RAID from scratch. Intel and AMD should be binary compatible (I mean the RPM's work) so I should be able to invoke mdadm to assemble the RAID after I install Linux on the new server. Right?

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Ubuntu Servers :: Changing RAID Level On An Existing Server

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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Server :: Reducing The Size Of A Device In An Existing RAID Set?

Sep 9, 2009

Alternate Heading: Unable to use opensuse partitioner to fully format a Seagate 1Tb drive OK. Swapped over a motherboard to increase the number of slots available for hard drives so that I could expand my raid array (4 X 1Tb drives). Discovered I had no thermal paste so all delayed for 24 hours while I bought some, miscalculated on rebuild and had to reinstall OpenSuse but in the end system is now up and running. Unfortunately when I formatted my new 1Tb drive (Seagate) it formats to 931.50 Gb while the other 4 drives formatted to 931.51 Gb (they are WD). I'm now in the position that when I try to add this new drive I get :

mdadm: /dev/sdc1 not large enough to join array

Is there any way I can resize the existing devices down to 931.50 Gb so that I can add in the new drive without having to restore the array?

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Ubuntu :: Migrating Home Folder To Another Distro

Jan 2, 2010

I am currently Running Ubuntu 9.10 Karmic Koala on my laptop, i am considering a change and want to move to Fedora 12 for a while(ill be back, i promise). Will i be able to migrate most of my settings over to Fedora 12 without trouble? What will be compatible and what wont?Also, for anyone running fedora already how does RPM package manager compare to debian's advanced packaging tool? I have heard, in older versions at least, dependencies were a headache, is this still the case?

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Server :: Mdadm: Rebuild A Software Raid From Drives With Existing Partitions?

Apr 24, 2011

Its from a Synology Box with 3 disks, which one is damaged. But this disk wasnt in use.Take a look on the raid-size of 493 GB - and the both available disks with 250GB..)
On the others there were a linear raid. during this damaged disk the synology-device tells me, that the volume was crashed.But it look like, that this disk was not mounted into this volume.Quote:

DiskStation> mdadm --detail /dev/md2
/dev/md2:
Version : 00.90

[code]....

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Ubuntu Servers :: Mounting Existing RAID Array On Fresh Installation?

Aug 1, 2011

I'm running 10.04 x86 server with a really simple installation on a single 250GB boot disk. I then have a RAID5 array as /dev/md0 (set up using mdadm with x4 2TB disks). All is working well. My mdadm.conf file looks like this

Code:

# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.

[code]....

if I was to lose the boot disk and need to remount the RAID array on a fresh installation, what steps do I need to go through. My assumption is that the superblocks on the RAID disks will be used and I don't need to keep any additional information - is this right?

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Ubuntu Installation :: Upgrade To 10.04 Hangs When Finding Existing Kernels?

May 5, 2010

The title's not especially clear, so I'll post a screenshot of what's happening. The upgrade keeps finding instances of the same kernel; the list in the terminal is constantly scrolling down, finding 'new' instances.

It's been doing this for about half an hour now. BTW, upgrading from 64bit 9.10 to 64bit 10.04.

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Ubuntu Installation :: Migrate Working Single Disk System To Existing RAID Array Using Disk UUIDs

Aug 1, 2010

I had done a new lucid install to a 1 TB RAID 1 array using the alternate CD a few weeks back. I messed up that system trying to some hardware working that lucid doesn't have drivers for yet, so I gave up on it and reinstalled to a single 80 GB disk that I now want to move over to the RAID array.

I moved all of the existing files on the array to a single folder, then copied all of the folders from the 80 GB disk over to the array with permissions and symlinks (minus the contents of /proc and /sys, which I created empty).

These are the commands I used:

Quote:

p -a -d -R -v -t /media/raid_array /b*
cp -a -d -R -v -t /media/raid_array /d*
cp -a -d -R -v -t /media/raid_array /e*
cp -a -d -R -v -t /media/raid_array /h*

[Code]....

I tried to change fstab to use the 689a... for root, but when I try to boot, it's still trying to open /dev/disk/by-uuid/412d...

So then I booted from the single disk again and chrooted into the array, then ran update-initramfs -u. I got 3 "grep: /proc/modules: No such file or directory" errors, and "cat: /proc/cmdline: No such file or directory"- so I created directory /proc/modules, created an empty file /proc/cmdline, and ran the initramfs update again. Then I tried to shut down, which hung (probably because I was doing all of this from a terminal window in Gnome), so I killed the power after a couple of minutes.

It's still trying to use /dev/disk/by-uuid/412d... to boot.

What am I missing? I assume I just have to change the UUID to mount as root, but I don't know how.

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Fedora :: RFRemix 11 Fails To Upgrade Existing Installation

Sep 2, 2009

I downloaded the Fedora respin DVD from [URL]. I burned the image and tried to upgrade my existing RussianFedora 10 distro. However, even after the successful completion of upgrade process, I boot into the same old RussianFedora 10. I would, also, like to mention that the upgrade process seemed to be unusually fast, it took only 15 mins for the complete process!

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Ubuntu Installation :: Will The 11.04 Automatic Upgrade Change Existing User Settings

May 27, 2011

However, the option to upgrade to 11.04 has recently become available in the Update Manager.

If I choose to follow this upgrade path, will my existing user settings such as nautilus shortcuts, wallpaper and other personalised settings be changed or reverted to default in any way?

Or will the upgrade execute, and leave everything looking and working exactly the same?

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Ubuntu Installation :: Upgrade Apache/SSL/Mysql/PHP And Mimic Existing Packages?

Aug 6, 2011

The Payment Card Institute (PCI) is requiring our site to upgrade to the latest versions of Apache, Mysql, OpenSSL, and PHP to fix known bugs that can compromise securityI can build all these from source, but when I do "make install" they don't mimic at all what is installed (directory format, files, etc) when I do apt-get install (of whatever old versions are in the dist).How can I find out how the packages are build via configure/make so that I can replicate the files, directory structure, etc, just with the current versions.

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Ubuntu Installation :: Won't Boot After Distro Upgrade

Jan 13, 2010

I've just attempted a distro upgrade (to 9.10) and have been left with a machine in an unbootable state.

I tried using a recovery boot through Grub and can see that the boot process hangs after outputting:

Code:
swap: waiting for UUID=$random-string$

If I ESC to get a prompt, I get:

Code:
General error mounting filesystems

I can't run dpkg-reconfigure as I get a read-only filesystem error.

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Ubuntu Installation :: Distro Upgrade Failed Miserably

Jun 3, 2011

I tried to upgrade to v10.04 ("Lucid"). After nearly 15 hours of painfully slow downloading and installing, my computer froze, just as the upgrade was almost complete. Needless to say, my Linux kernel is now wasted. what is the best way to proceed? I would like to get theOS going again, without losing any of my data or files. I also have a Windoze partition on that HD, which needs to be preserved.

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Fedora Installation :: F12 (Install Or Upgrade Existing System) Sony Vaio

Jun 22, 2010

I've had such good luck with Fedora (and this Forum), I'm attempting to put F12 on wife's brand new Sony Vaio, a VPCEB11FM, a 64bit system. I downloaded the Fedora-12-x86_64-netinst.iso, made sure it was ok with sha256.exe, then burned the image to DVD. Booted it up and let it default to "install or upgrade an existing system". It dead-ended in a dark blue or black screen. I re-started and examined the other options. Thought I'd try the one that says: "Install system with basic video driver". Got all the way through to where it got ready to start downloading files. Can't get past that point because it attempts to get to the Internet using the Sony's wireless card! Why would it try the wireless when there's a wired NIC card in this PC that requires no special driver etc. How to proceed from here?

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Fedora Installation :: Huge Upgrade - Maintain Existing Partitions / Settings?

Aug 30, 2010

I've been running Fedora Core 3 on a P4 450 as a personal Samba server and domain controller. It's worked so well that I never gave any thought to upgrading. The other night, I noticed that Up To Date wasn't working, and that Firefox was acting strangely. I made the FC 13 installation disks, whereupon I found out that the system didn't have enough memory.

Rather than mess with the P3 450 any more, instead I swapped main boards and decided to do an upgrade. it even possible to do an "upgrade" from 3 to 13? Is it possible to maintain my existing partitions/settings. I've backed up everything that I'd be too unhappy to lose. It's a two drive system and the second is nothing but data, none of it catastrophic to lose, but at least disappointing. I'd like to keep the data and settings on the primary disk, but won't cry if I can't.

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OpenSUSE Install :: Safest Way To Upgrade Using New Installation While Keeping Existing Home?

May 23, 2011

Having read several threads and received excellent previous advice there are just a couple of points I want to check please before proceeding on laptop. I want to upgrade to 11.4 from 11.2. My disk setup is as follows:-

Disk /dev/sda: 120.0 GB, 120034123776 bytes
240 heads, 63 sectors/track, 15505 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes
Disk identifier: 0x462d462c

[Code]..

If I select existing /home root and swap partitions, format root but prevent formatting of /home and use a different user ID I believe that will leave my existing data intact and will allow me to trial new os. Is this correct approach? If all goes well and when I have new system working correctly, what is best way make old user id date accessible. Can I simply create my old id on new system and will that allow me to access data when I log on with that id?

Second question; at present I have the ability to boot to openSUSE, OS/2 and windoze. (It used to be done entirely by Boot Manager but during my last Linux installation I messed this up a bit so now machine boots to grub and this offers all three operating systems but chain loads Boot Manager if I select OS/2)

When I do the new installation what should I select to retain this setup so that I still have access to windoze and OS/2 but when selecting linux have new 11.4 system run.

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Ubuntu Installation :: Stop Upgrade Manager From Trying To Distro Version?

Mar 17, 2011

Now, every time I run update manager, it tells me to run a partial upgrade. I can close the window and proceed upgrading packages,but if I let it try the partial upgrade is starts a distribution upgrade !??! I am currently running 11.04.

How can I stop update manager from trying to update my distro version?

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General :: Adding Existing Distro Back To Boot Loader?

Mar 19, 2011

Have 3 linux distros on 3 hard drives. lost one distro from boot loader. how do I restore missing distro to boot loader? drive was not written to when one distro (drive) was updated.Example drives a, b, and c each had listing on boot loader, now after upgrade to distro on drive b order on boot loader is drive b then a and none for c.

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Ubuntu Installation :: Randomly Upgrade Distro Made Windows7 Unbootable

Jun 10, 2010

Suffice to say I had a dual boot at work with an essential windows 7 and non-essential linux install on it, and randomly upgrading the distro made windows7 unbootable. Cue a missed days work, much embarrassment and ear bashing from those who are convinced Linux is written entirely by communists and hippies. In the end I had to re-install windows, which cut off the ability to boot to ubuntu - although I've left the existing ubuntu partitions as they were.

Although I can get away with allocating a few partitions to ubuntu, I can't really justify fiddling with the MBR based upon this experience. I need a fast boot and persistent data for doing anything further with ubuntu at work, so I'm wondering whether a safer bet would be to setup a usb stick with enough grub to boot to the existing ubuntu install? Not a full usb distribution, just enough to boot into the existing install? how this would be doneIs it really just a grub-install /dev/sdXX (where XX is the usb)?

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Server :: RAID 1 Partition Devices Disappear After Upgrade

Mar 3, 2011

I found a workaround of sorts. It looks like this is related to a 9.04 bug [URL] and the loopback workaround brings back the array. It is not clear how I will handle this long term.

Note: before using this technique, I used gparted to tag the partitions as "raid". They disappeared again on reboot, so I had to do it again. I am not sure how this is going to work out long-term

Note: I suspect some of this is related to the embedded "HOMEHOST" that is written into the RAID metadata on the paritions. The server was misnamed when first built and the name was changed later (cerebus -> cerberus) and the old name has surfaced in the name of a phanton device reported by gparted - /dev/mapper/jmicron_cerebus_root

I have a mythbuntu 9.10 system that I have upgraded from 8.10 to 9.04 to 9.10 in the last 2 days. I am on my way to 10.x, but need to make sure it works after every step.

The basic problem is that in its current incarnation, it is not recognizing the underlying partitions for one of the RAID devices, and therefore not happy.

As a 8.10 system I had 2 raid devices:

/dev/md16 -> /dev/sda5 and /dev/sdb5
/dev/md21 -> /dev/sdc1 and /dev/sdd1
/etc/fstab looked like this (in part):
/dev/md16 /var/lib xfs defaults 0 2

[Code]....

I don't *really* want to repartition the drive as there is a small amount of data loss between recent backups and what is on the drive, plus it would take me 2 days to move the data back.

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Server :: Add Existing Unix User To Existing LDAP?

Jun 23, 2010

I have an existing unix user that some how didnt make it into the copy over to our LDAP server. How do I add an existing unix user to an existing LDAP directory? Will ldapadd work? I was under the impression ldapadd required an ldif file to work properly.

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Ubuntu Servers :: Cannot Mount Existing Jmicron Raid 1

May 28, 2010

I have recently had a problem with my 10.04 server machine. It will not boot, it seems to be taking forever on the loading screen (normally headless server, but I connected monitor when I couldn't ssh), but that's not why I'm here.

Knowing that I do rsync backups every night at midnight of my machine I just bit the bullet and formatted my / partition. Reinstall went fine, I turned off automatic updates (I suspect an update caused the problem) But now I cannot mount my jmicron raid 1, which is where my rsync backup is (doh!).

sudo fdisk -l

Code:
WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders

[Code]....

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Ubuntu Installation :: Raid Array Not Available After Upgrade?

Jul 11, 2010

After upgrading my ubuntu install my raid array is gone. The drives appear in blkid as "Linux raid member" and both have the same uuid. If I try to mount the drive via fstab I get a message that the drive is not ready or present. If I try to mount each of the two drives, one mounts successfully the other reports serious errors. Issuing a cat /proc/mdstat shows md_d0 as inactive.How can I re-establish my raid array? I have the data backed up so if I have to wipe out the disks to start over that's an option.

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Ubuntu Installation :: Desperate: Upgrade From 10.4 64-bit To 10.10 - Won't Boot From Raid

Dec 2, 2010

I upgraded my Dell T3500 from lucid64 to maverick64. The system cannot boot the current image becuase it gives up waiting for root device. it gives something like:

Code: ---udevd-work[175]: '/sbin/modprobe -bv pci: v00008086d00002822sv00001028s00000293bc01sc04i00' unexpected exit with status 0x0009 ALRT! /dev/mapper/isw_bbfcjjefaj_ARRAY01 does not exist. dropping to a shell! at which point it drops to busybox at the (initramfs) prompt. I cannot boot this kernel in either normal or recovery mode (ubuntu 10.10, Kernel 2.6.35-23-generic)

however, if I select the previous kernel in grub, (2.6.32-26) it will boot fine. This is my main production machine and it hosts my Project Management software for my team.

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Ubuntu Installation :: GRUB2 / RAID 10.10 To 11.04 Upgrade Fail

Apr 30, 2011

GRUB2 / RAID 10.10 to 11.04 Upgrade Fail.....

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