Fedora Servers :: Remove RAID Flag From Disc?
Apr 17, 2011
I would like to mount a disc that was previously used in the Intel Software Matrix RAID array (fake-raid). If I try to mount it I get:
mount: /dev/sdd1 already mounted or tempb busy
I think my dmraid is refusing to mount it beause of some RAID "flag". I would like to get rid of it, but unfortunately I cant do that on my system (theres no such RAID):
[root@ox mnt]# dmraid -r /dev/sdd
ERROR: isw: Could not find disk /dev/sdd in the metadata
no raid disks and with names: "/dev/sdd"
There are several posts recommending to uninstall dmraid completely from the system. Isnt there smarter solution in removing such a flag?
View 7 Replies
ADVERTISEMENT
Dec 16, 2010
I am trying to build a storage server using software RAID. After getting writing RAID information to what I thought was the drives, I realized the configuration was not going to work. Since that time I have modified the RAID configuration more than once plus this is a project that was started a few months back. Between the time delays and currently written configuration, things are a confusing mess.
What I would like to do is wipe out all software RAID and start all over again. The problem is that I am unable to figure out how to get rid of it. I used DBAN to wipe out all four of my 1 TB drives which took a while. But still, the RAID configuration pulls up when I try to do a new install. Where is the RAID configuration data stored at if not on the HD? How can I scrub that information off so I can start all over again?
View 8 Replies
View Related
Apr 5, 2011
I bought a disk to a friend that used it in a raid array, using the entire disk for the raid usage. To put that disk on service, i used dd-rescue to copy my old disk entirely, and managed to grow and setup a the partition table without losing any data. My last step was to create a RAID between my entire old disk, with a single partition and a partition of the same size on my new disk. I ran into some problems, but i manage to somehow fix it imperfectly, but now this setup is working properly. The problems (and imperfection) came from an issue it did not suspected : at some point, the original RAID superblock of the new disk, living in /dev/sda, resisted to dd-rescue, and so it is scanned by mdadm that tries, obviously unsuccessfully, to use it.
Partition layout :
Code:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[code]....
this setup is working properly besides this raid5 declared on sda, so that is shows up here and there. Since it is using the same device name that my other, proper raid setup, i don't know how to deactivate it since mdadm uses the /dev/mdx name to identify arrays.
View 4 Replies
View Related
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.
View 4 Replies
View Related
Jan 5, 2010
After updating to Karmic, Synaptic shows almost all of my installed packages in the category "Installed (manual)", including about half of the packages that belong to a clean Ubuntu installation (e.g. apparmor, apt and hundreds of others). As a result, I can't easily get a list of those packages that I did indeed install manually and may want to remove. Is there a way of removing the "Installed (manual)" flag from all packages?
If I could do this, all packages that do not belong to the core Ubuntu system should show up as "Installed (auto removable)" and I could individually mark only those as manually installed that I really still need and let apt/synaptic uninstall everything else. I know that with today's hard disks, disk usage of installed packages is not an issue. But those packages accumulate over time and need to be updated with every security update and every ubuntu dist-upgrade, wasting time and bandwidth.
View 2 Replies
View Related
Dec 21, 2010
Is it possible to remove the "flush" flag when mounting removable disks in KDE4 without recompiling KDE4? Can it be done in some config file(s)? Thanks!
View 5 Replies
View Related
Dec 4, 2010
I had a RAID1 array with two disks. I wanted to remove one of the disk and replace it by a new one. I first expanded the array from 2 to 3 components and let RAID rebuild completely. When this was done I used Gnome disk utility (palimpsest) to remove the component on the disk I want to get rid of. It looks like palimpsest did mess up somewhere because the array is no displaying as degraded. How can I get rid of the "removed" entry (was /dev/sdc1) in the RAID array (and hopefully have it come in Running state)?
#/sbin/mdadm --detail
Raid Level : raid1
Array Size : 732570841 (698.63 GiB 750.15 GB)
[code].....
View 1 Replies
View Related
Dec 6, 2009
I'm sorry for this stupid question, but I have nowhere found it.I need to access to my USB disc from text mode (In Fedora LiveCD I see it and i can access /media/New Volume). In F12 runlevel 3 in mc I see it in /dev/disc/by-label as @Newx20Volume. But I don't know what is the correct path.
View 2 Replies
View Related
Feb 15, 2010
A week or two ago I installed Ubuntu Server 9.10 on a Intel DG945SEJT-based machine with two WD RE2-drives. I used unetbootin-windows-408.exe to to prepare a USB stick with the 32 bit version of the server version of Ubuntu. The installation went smooth without any problems.
Now when I'm trying to do the exact same thing to an almost identical server (larger HDD:s) I can't change the bootable flag to "on" on the physical raid partitions I create to host /.
I use the the following partition scheme: 10 GB /, 4 GB swap and the rest as /home. They're all on software-RAID1. Last time I did this (and many times before that) I was able to set the flag to "on".
When I press enter it just shows "updating filsystem.." etc. for some second but then nothing happens, the parameter is still on "off". This causes the whole installation to fail in the end due to an error when installing GRUB -> "can not install grub in /dev/sda "fatal error"".
My only conclusion is that the installer downloads some new files from the internet which causes this problem, as I said - nothing else is different except the harddrives (WD RE4-GP).
View 5 Replies
View Related
May 2, 2011
I'm running Ubuntu Server 11.04 on a home PC as a local-only file and web server for some private projects.After a few minutes Ubuntu will stop responding to the network and a cold reboot is required to re-enable the NIC.I've been able to stop the above occurring with a user logged in and constantly pinging the gateway, although this is obviously undesirable.
I read here and elsewhere that a fix is to set acpi=off in grub. I have done this but now instead Ubuntu will not boot and shows the message:
do_IRQ: 1.55 No irq handle for vector (irq -1)
Disabling IRQ #34
and hangs there indefinitely. The system will boot fine if I revert the changes but obviously the sleep problem remains.The BIOS does not have an option to disable ACPI, just select S1 or S3.Is there anything else I should be looking for in order to disable sleep? Otherwise the system is working fine, and when it's awake I haven't had any other trouble.
View 9 Replies
View Related
Oct 16, 2009
I have a custom server built with Intel motherboard and RADI 10. The RAID controller is on the motherboard. I'm about to install fedora 11 x86 64 bit on it. Should I be experiencing any issues with anything that any of you have come across? I did a checksum check on the iso files and those were good. Also, someone sent me this link..
[URL]
However, I have a hardware RAID, not software RAID.
View 9 Replies
View Related
Sep 1, 2010
How can we know which Raid level is useful for the server E.g Mail, Web, Database server. Also things we can keep in mind before configuring RAID / LVM on live servers.
View 2 Replies
View Related
Nov 13, 2010
I hope this is the right section, it looks like though. I have a small nas ( via artigo a2000 ) with 2 sata hd 1tb each with raid 1 and lvm on top configured and working great.
sda1 and sdb1 ==> md0 raid1 for /boot
sda2 and sdb2 ==> md1 raid1 for swap
sda3 and sdb3 ==> md2 raid1 as physical volume then volume group and lvs on top ( / is a logial volume of these )
I wish to upgrade the current fedora 12 32bit installation I have on it doing a fresh install. But because I have a lot of data on md2 ( 600GB worth ) which I don't want to copy across somewhere else first, I need to know how ( i am pretty sure i can ) to mount md2 during the installation. This way I can use the data I already have on it.
View 3 Replies
View Related
Apr 16, 2011
I am using Fedora 14 64 bit with two 1T drives. There is a Raid 1 for the important information and I use a Raid 0 for cached files that can be generated on the fly. Yesterday my Raid 0 went into read only mode.
Here are a couple of tests:
What caused the Raid 0 drive from /dev/md1 to get removed? Is there a way to get it back to active sync?
I have tried:
But it can not open /dev/sda2: Device or resource busy.
View 9 Replies
View Related
Feb 2, 2009
Im having a hard time trying to change my raid configuration. Here is my situation:
A have two HDs that I configured in instalation time to work as raid squid proxy-cache. they are both 40GB. 40+40=80GB. So, I want to change it to two of 160GB. 160+160=320GB.
I have:
sdc1=40GB
sdd1=40GB
im adding / want:
sda1=160GB
sdb1=160GB
I want to remove the two 40GB and use only the two 160GB for my proxy. The thing is that when I remove the two 40GB, the system crashes at startup telling me that the raid cant be done then file system check fales too. Im wondering if there is a file a have to edit to change to point it to /dev/sda1 intead of /dev/sdc1 for example, so my system would start up looking for sda1(160GB) and sdb1(160GB) intead of sdc1(40GB) and sdd1(40GB).
View 6 Replies
View Related
Jul 15, 2009
I have AMD athlon 64 processor, Seagate 160GB SATA Hard Disk, ASUS A8VMX mother board.With this configuration, I can Install FC7 without any error. But all the latest releases after FC7 is not detecting my Hard disk. Is there any solution to solve this problem? Actually I'm searching for a solution when the FC8 released. Now I have all the later releases from FC8 to FC11 DVD except FC9. But none is working .
View 1 Replies
View Related
Jan 22, 2009
I have had no problem installing Fedora OS on any of my Dell servers prior to this post. Anyway, I wouldn't call this a problem but recently, we bought another DELL server with Quad Core, 4GB, etc... AND this model has 2 swappable SAS Harddrives.
I wouldn't call myself an expert but then again I am not a newbie too. However, I have never setup any RAID before and now I am forced to setup RAID1 on this server. So, in a way, I am a newbie in setting up RAID
Would someone please point me in the right direction as I have no idea what I am supposed to do to setup the RAID. FYI, I will be installing Fedora 10 64bit on this server. I would appreciate if you can start from the very beginning, ie. partitioning, formatting the harddrives during OS installation, etc..
View 3 Replies
View Related
Sep 30, 2009
I was recently requested to try and convert a running system to RAID level 1. I did not succeed in this task. However, I am still interested in accomplishing this task in a test environment.What I did was create a RAID device with a device missing e.g.
mdadm --create /dev/md0 --level=1 --raid-devices=2 missing /dev/sdb2
Once the RAID was up and running I created the /etc/mdadm.conf file so that it would activate the RAID device on boot. Once the device was created I copied all the data from the running root filesystem to the /dev/md0 device. The only directory that I didn't copy was the /proc directory. When I rebooted the machine I had a kernel panic and the system couldn't find /dev/root. I would greatly appreciate it if someone could provide some information/tips regarding the problem.
View 1 Replies
View Related
Jun 7, 2010
I'm looking to set up a bit of a home server, and am wondering about storage. What I'd like is something like RAID 6, which has good redundancy built-in, but with this being a home server, I'd prefer to start a little smaller and leave room to build it up in future. I'd been looking at commercial products like the 'drobo', which seems fairly ideal, but I'd really like to see if I can do it myself. I understand that throwing the RAID into an LVM will allow for some expansion, but the last time I checked, most RAID setups called for the same sized disks, or at least limited the array by the size of the smallest disk present.
What I'd like is the ability to build a basic framework with a few cheap disks, and then as things start filling up, to be able to add larger ones (perhaps eventually pulling out smaller ones as though they'd failed and replacing them with big ones)
View 1 Replies
View Related
Jan 3, 2009
I had a RAID1 'device' build on two physical partitions on two drives. One of the disk controllers died and software RAID did the job - now I am working on the degraded array.
Now I want to put the old disk (sdb) back, and I am not sure what will happen. Both disks have 'raid auto' partitions. And sdb file structure from before of the failure. The raid code will find inconsistency between both partitions. What will it decide? Will it start coping from the currently running system (sda) all the data to the old one (sdb) at the boot time, as I wish?
I don't want to it to write from the old one to the new one, as some months passed and lots of changes happened to the data.
View 1 Replies
View Related
Jan 21, 2011
For several days I stuck on a problem despite my various searches on the net. I just installed a machine in RC1 Squeeze.
My Partitioning
Disc 1
/ boot RAID 1
/ swap RAID 1 and encrypted
/ RAID 1 and encrypted
[Code]....
View 5 Replies
View Related
Oct 31, 2010
Is the command "ls -d" meant for only listing directories? Because i tried it and it ALWAYS display just a blue dot. If not what is the correct way to show only directories? I.e. MSDOS equivalent "dir /ad".
View 2 Replies
View Related
Jun 9, 2009
When I run yum list fedora runs through around 5-10 repos that it can never connect to what's the best way to remove these repos? And which repos are the most reliable?
View 5 Replies
View Related
Jun 24, 2009
I've tried to install Fedora 11, both 32 and 64 on my main machine.It could not install as it stops on the first install window. I've already filed a bug but really haven't seen any feed back yet.The bug has something to do with Anaconda and the Raid array but I really can't tell.
I have an Intel Board (see signature). I am running intel raid software under W7 currently.It works fine. But, I'm wondering, when I attempt to install F!!, is my current raid set-up causing problems? Do I need to get rid of the intel raid software and use a Fedor/Linux raid program to manage the raid array??
View 2 Replies
View Related
Jan 24, 2011
I'm going a little bit crazy. I can't seem to remove my RAID 1 arrays. Any suggestions? I don't need to save data. The drives are empty. I'm upgrading to 4 2TB drives.Running Lucid Lynx server
Code:
jessica@nas:~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md2 : active raid1 sdb1[1]
976759936 blocks [2/1] [_U]
md0 : active raid1 sdd1[0]
[Code]...
View 5 Replies
View Related
Sep 10, 2010
Using Ubuntu Server 10.04, I was adding a new file system to mount today. I made a mistake editing the fstab folder for mounting a new partition, and now I can no longer boot. I attempted to use a live disc to edit correctly, and did so, however I still get errors on boot. I have included a screenshot of what I get on screen while trying to boot.
View 1 Replies
View Related
Jan 1, 2011
I have just installed 11.3 x64. The installation went fine and worked for the first few hours. I ran the online update tool, and now it cannot find grub unless the installation disc is inserted and I select the "boot from hard disc" option.
I have read about the problem of the root partition being back, but not sure that's it.
sda1 - swap
sda2 - /
sda3 - /home
There used to be a repair tool in the installation disks. I could not find that in this media. Is that still available?
View 9 Replies
View Related
Mar 10, 2010
this blew my mind today, because i've been using ubuntu for 2 and half years. Brasero 2.28.2 in Karmic does not have an option enable multisessions when burning disc or import a disc which has a multisession.
Seriously, wtf is going on? This is supposed to be Ubuntu's default CD authoring software.
View 4 Replies
View Related
Dec 19, 2010
I'm trying to install files and everytime I manage to install from the first disc I succeed. When I get the the second disc I just keep clicking the "OK" button instead of "Cancel" and it keeps neglecting it.
View 1 Replies
View Related
Nov 5, 2010
Is there any software that will do full mirroring between a local and a remote file system. I have a server (9.04) and a laptop (9.10). Each user has shared a shared directory on the server, and on the laptop. Updates to files may be done on either system. I want to keep both copies syncronised. Currently I use a script based on rsync (scheduled by cron) to keep the local and remote copies in sync.
The problem with this approach is that rsync only seems to be able to handle deletion of files if one file system is the master, which is not the case in my set-up. If I move a file to a different directory, rsync will reinstate the old file as well as copying the new one. I was hoping there was some software that could do proper mirroring between the 2 systems, but6 so far I cannot find anything.
View 3 Replies
View Related
