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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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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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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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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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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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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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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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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Apr 6, 2010
I'm having some (well, a lot actually) of problems trying to get OpenSUSE 11.2 installed on my home PC. I am attempting to set up a dual boot configuration with Windows 7 installed on an bios Nvidia RAID 0.I was able to shrink the partition in Windows, and rebooted onto the net install for OpenSUSE (the MD5 validated DVD install failed multiple burns with "Repository not found"). I get into the graphical installer portion with no problems off the net install CD. However, the installer is not recognizing that there is an existing RAID 0. It lists the 2 SATA disks in the RAID separately. I can click on SDA1, and both SDB and SDB1 and it shows the disks, but does not recognize any existing partitions. If I click on SDA I get an immediate segfault in YaST and drop back to the text mode installer menu. It is loading the nv_sata module just fine.
From forum searches and google it seems that this is not usually a problem. My motherboard is a Gigabyte GA-M57SLI-S4 with the Nvidia Nforce 570 chipset running an AMD X2 64 3800+. Removing the stripeset and redoing it as Linux software RAID is not an option, I do not have enough space for a total backup/restore. Anything I do has to be nondestructive to the existing Windows installation.I really want to have a linux installation but between the DVD installer failing and now this issue I am about ready to give up on it.
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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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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 13, 2010
I have two SAS RAID controller cards in a Dell server in slots 2 & 3, both with an array hanging off them. I went to install a third card into slot 1, but then when it boots it says two of my sd's have bad magic number in the super-block and it wants me to create an alternative one, which I don't want to do. If i remove the new card, the server boots perfectly like it did before I added the new card. Is the new card trying to control stuff that isn't hooked up to it because its in slot 1, so its confusing RHEL?
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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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Sep 23, 2011
I have a home samba server with a 3ware Escalade 8506-8. I have 5 x 500 gig hard drives in a RAID 5 array. Recently, my 8506 died and I need to get a new one. However, I saw a 3ware Escalade 9500S-12 on ebay for about $20.00 dollars more than a replacement 8506-8.
My question is, if I put my drives on the 9500S, will it recognize my existing RAID array? Or will it want to build a new RAID array and format all of my data?Hope I have asked this question clearly, little short on sleep this week.
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Jul 5, 2011
Yesterday, I deleted/reformatted one of my internal hard drive which had two partitions. Now everytime I log-in, Ubuntu tries to mount the two partitions that no longer exist. The only way I can resolve this is by pressing "S" twice while trying to log in to skip the auto-mounting process. Is this problem in the grub or should I just disable auto-mounting?
Auto-mounting was enabled automatically when I installed ubuntu in May, so I have no idea how to disable it or how to mount drives that are not automatically mounted at log in.
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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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Mar 23, 2010
I had a drive that kept kernel panic'ing so my data center recommended using the spare hard drive to reinstall OS on, and import the data from the old drive. (they checked the hardware, it wasn't the hardware) The new install is done, and I need to mount the old drive and get backups off it since my data center does not provide management whatsoever.
It's the same OS on both (Cent OS 5.4 32-bit) I'm an advanced user on windows, but linux gets me. I can ssh in, do basic stuff like setup IP ranges and restart services. I normally navigate the box through SFTP so I have a gui. WHM shows me my drives as such
Found Disk: hda
Found Disk: sdb
so I'm assuming SDB is my old drive and the drive I need to access. I attempted to follow instructions on
cyberciti.biz/faq/freebsd-adding-second-hard-disk-howto/
but I'm assuming FreeBSD would work differently and I wasn't totally sure what the labels of the file systems should be.
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Jan 31, 2011
Got my new Sager NP8150 with
Code:
lspci | grep -i net
03:00.0 Ethernet controller: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller (rev 05)
04:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35)
Installed Ubuntu 10.10
The Wifi Intel Corporation Centrino Ultimate-N 6300 works out of the box, but the JMC250 does not work.
Code:
root@ubuntu:~# ethtool -i eth0
[Code]...
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May 7, 2011
I have a system with a 2TB RAID level 1 installed (2 x 2TB drives, configured as RAID1 through the BIOS). I installed Centos 5.5 and it runs fine. I now added another 2x2TB drives and configured them as RAID1 through the BIOS.
How do I add this new RAID volume to the existing logical volume?
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Nov 28, 2010
I would like to install ISPConfig 3 on my Ubuntu 10.04 server. However, when I tried doing this according to the "perfect server" instructions at HowtoForge, all my virtual hosts would suddenly return a 403 error whenever i tried to access them. The stange thing is that all my virtual host configurations where still in place and enabled. I do understand that ISPConfig automatically configures Apache2, but is there any way to install it without ruining the existing configuration?
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Dec 10, 2009
My problem is for the driver of controller ethernet jmicron jmc250. My version of Centos is 5.2, included in PBX In a Flash. I Have the original driver but these don't work and nic is not recognized. I downloaded the version of centos 5.4, but the nic is realy recognized but if tape ifconfig eth0 the message is device not found. The hardware is ok, infact this hardware work regularly in wondows for example.
the driver location : [URL]
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Feb 6, 2010
I run a headless Ubuntu 8.04 server, which acts as a web, email and file server. I am sticking with 8.04 as it is a LTS release and will upgrade to the next LTS when it is released.
I have two external USB drives, that I need to mount at boot. I have been using /etc/fstab up until now, with the following entries:
Code:
However, as I gather from doing searches is quite common, occasionally I get an error during boot (causing the system to drop to a recovery shell) because the USB drives take time to wake up and the system hasn't found them by the time it reads /etc/fstab.
From doing searches, it seems there is nothing you can do to fstab to fix this, so you need to mount them using an rc.local script instead, using:
Code:
The problem is, as I have two USB drives, their /dev/sdxx location changes between boots. I thus want to use UUID codes as I do in fstab, however I haven't found anything about this.
Does anyone know how I can use the mount command and UUID to mount a drive in rc.local and what options I have to use the mount the drive with the same options that I am using in my fstab entry? Obvisouly, I can't refer back to fstab using the mount command, because then I will still get the boot error issue if they are listed in fstab. And there is no space internally for the USB drives as there is already two internal drives.
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Oct 7, 2010
I'm trying to get a GBB36X (Gigabyte-rebranded JMB36X) RAID0 controller to work in F13, with no success. When I run dmraid, here's what I get:
Quote:
# dmraid -ay -v -d
DEBUG: _find_set: searching jmicron_GRAID
DEBUG: _find_set: not found jmicron_GRAID
DEBUG: _find_set: searching jmicron_GRAID
[code].....
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Dec 5, 2010
I have just recently installed Ubuntu Server 10.10 32-bit onto an old Gateway Solo 5300 laptop to run as a test server. Since I want it to use all of the disk space, how do I remove the other OS and its existing programs.
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Apr 4, 2011
Linux box info: root@mytestbox:~# uname -a Linux mytestbox 2.6.32-30-generic-pae #59-Ubuntu SMP Tue Mar 1 23:01:33 UTC 2011 i686 GNU/Linux
Windows box info: Windows Server 2008 SP2 Enterprise I've verified via --verbose output that mount.cifs is indeed processing the passed on options.
root@mytestbox:~# mount -t cifs //10.1.1.10/Test /root/testwin --verbose -o credentials=/root/testcreds,rw,nocase,noperm,noacl,nounix,noserverin o,iocharset=utf8,file_mode=0777,dir_mode=0777
[Code]...
Yet, when I type mount all it reports is (rw,mand). The share works just fine, and I can see the masking (all files are showing as rwxrwxrwx as expected etc) but mount is not listing the options?!
Is this normal expected behavior? Is there a bug report on this? I've google'd to the best of my capabilities and could not locate any such information which is why I decided to hit the forums prior to filing a bug.
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Apr 19, 2010
After update/upgrade; previously existing RAID no longer auto-mounts.
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes[code]......
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Jul 18, 2010
I am running 64bit ubuntu 10.04. I have an nvidia software raid formatted with ntfs. The raid only mounts about every 10-15 boots. It is completely random on when it will mount. I even have included "force" in the ntfs-3g mount options.
Also, possibly related, many times ubuntu will not even load unless I load windows first and then restart. I run Ubuntu on its own partition using ext3, so this makes no sense.... It makes me scared to run a computer with only Ubuntu because it seems Ubuntu cannot load unless window loads before it! I could understand this if Ubuntu was formatted as NTFS, but the only NTFS drive Ubuntu sees is the raid, which is not mounting anyways, so why is it dropping to the command prompt?
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Oct 30, 2010
I'm using 4 hard drives (1 of which is a sata drive) and i need help installing raid drivers i cant get these hard drives to mount at all
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Nov 1, 2010
I've just installed ubuntu 10.10 (64bit) on my 1TB drive where as I have my windows drives on a seperate 2x 1TB drives in RAID and am not exactly sure how to mount it.
I am not finding it under computer or under NTFS configuration tool and when I click mount under storage device manager it does nothing, although does detect the RAID array as /dev/sda2
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Nov 18, 2010
I can not to mount md2 to recovery my file form hdd, Must be active md2 to can be mounted?
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