Slackware :: RAID 5 Boot - LVM Stays Inactive
Nov 5, 2010
I'm somewhat stuck I fiddle with intel ss4200 NAS where I managed to install Slack 13.1 on some spare IDE HDD that was lying around (instead of that crappy 256 MB DOM). Anyway, everything works except one thing...
The setup is: 1x IDE HDD with Slackware on it. 4 x 1TB drives in RAID 5, which when mounted make 3 different logical drives. Everything works, /dev/md0 is created, pvc on top of it with 3 different drives. Well at least until I reboot. After reboot /dev/md0 is not automatically assembled and due to that - lvm stays inactive. Of course, I can make a script and put it in rc.local that will activate and mount what I want but I'm sure that there is one more elegant solution for that.
At the moment I need to issue: mdadm --assemble /dev/md0, vgchange -ay, mount -a and vgchange -an at shutdown. I checked parts concerning LVM in rc.S but I'm clueless. Kernel on the system is 2.6.36, mdadm - v2.6.9 and LVM version: 2.02.64
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Mar 9, 2010
After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it.
* Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0.
# mount /opt
mount: wrong fs type, bad option, bad superblock on /dev/md_d0,
[code]...
In /proc/partitions the last entry is md_d0 at least now, after reboot, when the device happens to be active again. (I'm not sure if it would be the same when it's inactive.)
Resolution: as Jimmy Hedman suggested, I took the output of mdadm --examine --scan:
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=de8fbd92[...]
and added it in /etc/mdadm/mdadm.conf, which seems to have fixed the main problem. After changing /etc/fstab to use /dev/md0 again (instead of /dev/md_d0), the RAID device also gets automatically mounted!
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Apr 24, 2011
I had some issues with my RAID6 array (with 15 disks), where 5 disks got disconnected (each five disks is connected to the motherboard via 1 SATA cable), which brought down the RAID array. I fixed this problem via readding the disks and running the array:
Code:
mdadm -R /dev/md1
However, after rebooting, the array appears inactive, and I have to go through the same motions to fix this and make it active.
The array is present in the /etc/mdadm/mdadm.conf, though also 2 other raid arrays (3 arrays total):
Code:
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
[code]...
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Aug 12, 2010
I just configured two raid setups but after a reboot they are not mounted and seem to be inactive.
md127 = sde1, sdf1 and sdi1 (raid 5)
md0 = sda1 and sdh1 (raid 0)
Code:
root@server /]# cat /proc/mdstat
Personalities :
md127 : inactive sdf1[1](S) sde1[2](S)
78156032 blocks
md0 : inactive sda1[0](S)
488382977 blocks super 1.2
unused devices: <none>
Code:
[root@server /]# fdisk -l | grep "Disk /"
Disk /dev/sda: 500.1 GB, 500107862016 bytes
Disk /dev/sdb: 80.0 GB, 80026361856 bytes
Disk /dev/sdc: 122.9 GB, 122942324736 bytes
Disk /dev/sdd: 160.0 GB, 160041885696 bytes
Disk /dev/sde: 40.0 GB, 40020664320 bytes
Disk /dev/sdf: 40.0 GB, 40020664320 bytes
Disk /dev/sdg: 1500.3 GB, 1500301910016 bytes
Disk /dev/sdh: 251.0 GB, 251000193024 bytes
Disk /dev/sdi: 40.0 GB, 40020664320 bytes
Disk /dev/sdj: 500.1 GB, 500107862016 bytes
Code:
[root@server /]# cat /etc/mdadm.conf
DEVICE /dev/sdi1 /dev/sdf1 /dev/sde1 /dev/sda1 /dev/sdh1
ARRAY /dev/md127 UUID=5dc0cf7a:8c715104:04894333:532a878b auto=yes
ARRAY /dev/md0 UUID=65c49170:733df717:435e470b:3334ee94 auto=yes
As you can see they now show up as inactive. And for some reason sdi1 and sdh1 are not even listed. What can I do to get them back? To make matters worse I placed some important data on them, and even if I was clever enough to keep an extra copy on another drive, guess which drive that was? So, I need to get them activated as is (at least so I can get the data of them) before I can rebuild them from scratch. I'm running Mandriva 2010.1 and rated tehm using the built in disk partitioner.
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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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Aug 16, 2010
I have a raid array level 5 with metadata 1.2 made with mdadm. I put it on /etc/fstab to mount it on boot but it doesn't works because the raid is not detected on boot. I have a /etc/mdadm.conf like this:
Code:
ARRAY /dev/md0 level=raid5 num-devices=3 metadata=1.2 name=0 UUID=afdfe00e:0d18a5eb:29aa54f9:8b422ee0
Just another thing... After the command
Code:
mdadm --detail --scan >> /etc/mdadm.conf
The mdadm.conf is like this:
Code:
ARRAY /dev/md0 level=raid5 num-devices=3 metadata=1.02 name=0 UUID=afdfe00e:0d18a5eb:29aa54f9:8b422ee0
But I change manually the metadata version because the 1.02 give me a error. I don't know if it is a bug or what! Beside this. I have to put a line in /etc/rc.d/rc.local to assemble the array.
Code:
mdadm --assemble --scan --uuid=afdfe00e:0d18a5eb:29aa54f9:8b422ee0
And after that I already can mount it. Why the array is not detected on boot? Is because metadata type is prior to 1.00? Can I put the line I have on /etc/rc.d/rc.local to assemble the array in another file, that will be executed before /etc/fstab?
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Jun 5, 2011
This happens on boot on Fedora 15. Plymouth Boot Screen just stays there and I can't login. Searching around suggested kmod-nvidia to cause this (one moth ago ofc), but here I am with Intel Graphics and the default drivers.
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Nov 4, 2010
I have tried booting from 2 different Ubuntu CD's (10-04-01 and 10-10) and a Fedora CD.All 3 CD's do the same thing, in Ubuntu I just see the first screen (Keyboard/Battery on the bottom with the guy next to it) and then the screen goes black but the lights, that indicate there's a computer connected and transmitting info onto the screen, are still on.
I know the CD's aren't the problem because they work on 2 other computers I have.The CD drive isn't the problem because took it out of a working computer and that booted up fine with the CD's.I've restored BIOS to default settings.I've tried booting with 1 stick of ram at a time but still doesn't boot.I've left the computer on for 3 hours but nothing appeared on the screen and the lights never turned off. It was just a black screen, nothing on it, not even a blinking cursor.I know it's capable of booting up CD's because the Windows XP setup disc boots.
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Jun 16, 2010
Had Ubuntu installed, it worked fine but I had to format for a new partition (out of space) I program in Windows, I would consider myself a Windows geek, and would like to try out Linux. After I boot into setup, it stays at a black screen. It did that when I was installed Ubuntu, the first time. I don't know how exactly it ended up working, after a lot of different things I was able to get it to boot.
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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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Sep 15, 2010
It's been a real battle, but I am getting close.I won't go into all the details of the fight that I have had, but I've almost made it to the finish line. Here is the set up. ASUS Z8PE-D18 mother board 2 CPU, 8 Gig Ram. I recently added an OCZ Agility SSD, defined a raid 1 virtual disk on the 1 terabyte WD HDD drives, which will holds all of my user data, the SSD is for executables.The bios is set to AHCI. Windows 7 installed fine, recognizes the raid VD just fine.
I installed Ubuntu 10.04 by first booting into try and mode, then opening a terminal and issuing a "sudo dmraid -ay" command. Then performing the install. I told it to install the raid components, and told it to let me specify the partitions manually. When setting up the partitions, I told it to use the free space I set aside on the SSD from the Windows 7 install as ext4 and to mount root there. Ubuntu installed just fine, grub2 comes up just fine, and Windows 7 boots with out a hitch, recognizing the mirrored partition as I indicated previously. When I tell grub to boot linux however, it pauses and I get the "no block devices found" message. It will then boot, but it does not recognize the raid array. After Ubuntu starts up I can run "dmraid -ay" and it recognizes the raid array, but shows the two component disks of the raid array as well. It will not allow the component disks to be mounted, but they show up which is annoying. (I can live with that if I have to)
I have fixed a similar problem before by setting up a dmraid script in /etc/initramfs-tools/scripts/local-top ... following the instructions found at the bottom of this blog:[URL].. To recap: My problem is that after grub2 fires up Ubuntu 10.04.1 LTS (Lucid Lynx), it pauses, and I get "no block devices found" It then boots but does not recognize the raid array untill I manually run "dmraid -ay". I've hunted around for what to do but I have not found anything. It may be some timing issue or something, but I am so tired of beating my head against this wall.
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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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Nov 1, 2010
Forgive the terseness. I'm frazzled with this issue, perhaps I should have asked earlier. Every weekend for the past 2 months has been an endless cycle of 'repair broken system' off the install disk.
Installed from Ubuntu server 10.04LTS x86_64, + xfce-desktop Here is uname -a Linux ournas 2.6.32-25-server #45-Ubuntu SMP Sat Oct 16 20:06:58 UTC 2010 x86_64 GNU/Linux If I add my raid + lvm to the fstab file, the boot stalls, (no error it, just hangs waiting, forever). So that's a not very user friendly to start with.
I've tried the suggestions about UUID in fstab tried using LABEL instead, or even /dev/xxx. Every time it hangs. I've googled this endlessly and not found a solution. So don't ask why... since I seem to have tried every odd suggestion to fix this, I've lost track. There seems to be some consensus that whoever gave us plymouth laid an egg. Forgive me if I'm wrong, but did we need a better graphical boot if it breaks everything else?
[Code]...
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Mar 14, 2010
I look after some small office where computers run ubuntu. Sometimes they phone me for help. For that reason, I decided to install ubuntu alongside with my slack.I seem to have problems with lilo configuration. Ubuntu is installed on software raid :
/boot = md0 (raid 1 of sda1+sdb1)
/ = md1 (raid 0 of sda2+sdb2)
That's lilo.conf:
Code:
append=" vt.default_uft8=0"
boot = /dev/sda
bitmap = /boot/slack.bmp
[code]....
Code:
Fatal: open /vmlinuz-2.6.31-9-rt: No such file or directory
I can mount md0 without problems and the file name seems to be correct.
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Mar 1, 2010
I have a Gigabyte P55-UD3 motherboard, I created a raid 0 array in the bios with the integrated gigabyte raid controller. can I install Slackware 64 on it, can I make it bootable, could I have multiple Operating Systems(Windows too)without each of them corrupting the partition table.If yes then how?(I would prefer not using extra bootdisk)
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Dec 17, 2010
I have a server setup with software raid, I've used mdadm to create the mirror and it seems to be working just fine but it won't start by itself.
2 x 160GB SATA drives, each with a single partition
/dev/sdb1 and /dev/sdc1 respectively
Code:
/dev/md0:
Version : 0.90
Creation Time : Fri Dec 17 13:31:13 2010
Raid Level : raid1
[Code].....
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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]....
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Aug 17, 2010
I use slackware 13.1 and I want to create a RAID level 5 with 3 disks. Should I use entire device or a partition? What the advantages and disadvantages of each case? If a use the entire device, should I create any partition on it or leave all space as free?
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Feb 6, 2010
I have a VT6421 based raid controller. lspci shows this: 00:0a.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID Controller (rev 50) The drivers that come with it appear to have been compiled against an old kernel (I'm guessing). When I try to load them I get invalid module format. dmesg shows this: viamraid: version magic '2.6.11-1.1369_FC4 686 REGPARM 4KSTACKS gcc-4.0' should be '2.6.27.7-smp SMP mod_unload Does anyone know of a way to get this to work? I found the source for this, but it appears to only support Fedora, Mandrak, and RedHat. I can't get it to compile or make a driver disk.
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Mar 9, 2011
Basic Problem: I have been trying to install 13.1 (64-bit) and have not been able to get lilo to install.
Procedure:
1) partitioned drive /dev/sdc 1GB (Linux RAID) and 499GB (Linux Raid)
2) copied partitioning scheme to /dev/sdd
3) set up RAID-1 arrays md0 (sdc1-sdd1) and md1 (sdc2-sdd2)
4) write random data to partitions
5) set up LUKS on md1 (swluks)
6) set up LVM on swluks (80GB /, 375GB /home, 20GB swap)
7) ran setup, chose partitions, installed software
8) setup lilo (mbr, selected /)
9) TRIED to install lilo
[Code]..
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Jan 6, 2010
I'm building a NAS, based on the Intel SS4200. There are 4 drive bays in the machine for use with SATA disks, two of which I plan on filling now, the other two which I plan on filling later. The box also includes an IDE connector to which I will connect an 8GB Disk on Module onto which I will install Slackware. I wish to have all drives in the box show up as one contiguous volume. What partitioning/LVM/RAID configuration can I use which will allow me to:
1. Add a disk and transparently grow the available space of the volume?
2. Replace a disk with a larger disk and transparently grow the available space of the volume?
3. Lose a disk to hardware failure and replace it with a new one with no data loss?
If I use RAID 5, I'm pretty certain I can get numbers 1 and 3 above, but I'm not sure about number 2. The downside is that I'd have to start with 3 disks in the machine, and I'm unsure if adding a 4th disk whose size is larger than each of the 3 starting disks would lead to wasted space. For instance, if I start with three 1TB drives in RAID 5, and then add a 2TB 4th drive, would my available size go from 2TB to 3TB? Or from 2TB to 3.xTB?
Is it important in a RAID 5 setup to have all disks the same size? With LVM, I can certainly get number 1 above, but what about 2 and 3? I know you can use LVM to present many disks or partitions as one contiguous volume, but if I have two 1TB drives in one volume, and only have 300GB of data, then would the second drive remain empty until I broke the 1TB barrier? In this case, it's wasted space from the get go. I suppose another option would be to start with RAID 1 until I can afford a third disk.
When adding the new disk, could I switch to RAID 5 without data loss? I'm planning on maintaining a full mirror of the NAS on some USB disks as a backup, so if configuration changes to the NAS require wiping the disks and restoring from backup, it's not a total loss. However, it certainly makes me nervous to be in a state where only one copy of the data exists, so I'd rather find a solution where I can add and upgrade disks in the NAS without relying on the backup copies.
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Dec 17, 2008
I am trying to get Slackware 12.2 running on a system with two identical harddiscs using RAID-1, LVM and LUKS.
Here is what I get:
Code:
The system is still the same, however, the results of upgrading or installing 12.2 are different. The system refuses to boot. The screen messages during boot seem to suggest, that the RAID system is "seen" by the system, but the encrypted filesystem is not.
I can boot with the installation DVD, however, and
Code:
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Jun 21, 2010
I'm trying to install Slackware 13.1 x64 on a Dell T610 with a SAS Raid Controller H700 and the following error appears: Failed initialization of WD-7000 SCSI Card / megasas: FW now in Ready state. not recognizing my disks!
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May 1, 2011
I just setup sendmail on my server to send emails and it works, now I would like to be able to get an email from mdadm if sometjhing was going wrong. I imagine most raid users have this feature setup.
Right now, I have 7 raid arrays and mdadm starts at boot time. Until now, I used Mr. Goblin's script (http://connie.slackware.com/~mrgoblin/files/rc.mdadm) (thanks Mr Goblin!) to monitor my arrays.
The script is started at boot time from rc.local. I created a small script in /usr/bin that send the following command to rc.mdadm giving me the status of the arrays:
Code:
/etc/rc.d/rc.mdadm status
and it works fine, but this requires me probing the arrays manually by calling the script from the command line. I would like to automate probing every 10 minutes or whatever and if a fault has been detected, I get an email.
[Code]...
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Jun 21, 2011
what do I have:2x 150GB drives (sda) on a raid card (raid 1)for the OS (slack 13.37)2x 2TB drives (sdb) on that same raid card (raid 1, too)2x 1.5TB drives (sdc,sdd) directly attached to MoBo2x 750GB drives (sde,sdf) attached to MoBo too.if i got about it the normal way, i'd create softRAID 1 out of the the 1.5TB and the 750GB drives and LVM all the data arrays (2TB+1.5TB+750GB) to get a unified disk.If I use btrfs will I be able to do the same? mean I have read how to create raid arrays with mkfs.btrfs and that some lvm capability is incorporated in the filesystem. but will it understand what I want it to do, if i just say
Code:
mkfs.btrfs /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1
probably not, eh?
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Mar 7, 2011
When you see this topic we are in trouble of installing driver of the raid card on hp server.
Enviorment:
OS: Slackware 13.1
Server Type : HP ProLiant DL160 G6
Raid Card: Smart Array B110i SATA RAID
Disk : SATA 250G * 2
Raid Model: Raid 1
We have setted raid model (raid 1+0) in BIOS and when we finished install Slackware13.1 ,the OS can not recognise the raid disk(also two disk).Is there anybody can help me?Some solution or driver program or other infomation etc.My email is "feng.pan@continental-corporation.com".
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Aug 4, 2010
I want to build a 6xSATA RAID 5 system with on of the disks as spare disk. I think this give me a chance of 2 of 6 disks failing without losing data. I am right? Hardware: Intel ICH10R First I will creat a 3xSATA RAID 5, after I will add the spare disk and after that I will add the others disks. This is what I think I should do.
[code].....
EDIT:I'm thinking in put LVM with the RAID 5. What are the advantages and disadvantages of it (LVM over RAID 5). It is safe? My MB (Asus P5Q) have Chipset Intel P45 ICH10R. What kind of RAID have it? Hardware RAID, fake RAID, BIOS RAID, software RAID? This are the specs of storage
[code].....
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Jan 21, 2010
So I got slackware 13 from the website and created 4 partitions (primary) and left some (100GB) space as I planned to install windows 7 in that. After installing slack, when I booted from windows DVD (rtm) in partition section it said I already have 4 primary partition so windows cannot used the rest of space despite the fact that it was free (windows even grayed all options like new partition and format etc. for that space). So I thought I'd create 2-3 primary partition for linux (slackware) so that windows can use the free space and make it a primary partition.
So, Next I formatted with slack (3 partition, 2 Primary, 1 extended, total space for slack 50GB) and after its installation I worked my way with windows, but it just created one partition of 100Gb, won't let me create any saying all primary partitions are created. Anyway, I created that partition and installed windows 7. But it messed up my lilo (slack won't show in boot menu) neither can I create any new partition.
After all I reformatted again created 2 partitions for windows (that actually became 3 as windows 7 create 100Mb separate partition for system). Installed windows correctly. Then I booted with slack , which allowed only creating 1 partition as 3 were already there. So I created 1 extended partition, in which I created 4 partition 1 to mount for /boot (100M), 1 for /swap (3G), 1 for home (10G), 1 for / (35G) everything worked fine till I reached last point to install lilo. At that point it said cannot install Lilo (I tried all options simple, expert, install to MBR etc.) but it just won't install. Anyway, after that it said you can install it manually so I clicked OK. Then it said setup complete, remove disk and press alt+ctrl+del to reboot, which I did. But there is just windows 7, no slack ?
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Jul 1, 2011
I'm currently trying to setup Slackware 13.7 on a server, using software RAID 1. I'm using the README_RAID.TXT document at the root of the Slackware disc as a reference. Anyway, here's what I have so far.
/dev/md1 -> /boot partition
/dev/md2 -> swap partition
/dev/md3 -> / partition
Code:
[root@raymonde:~] # fdisk -l /dev/sd{a,b}
Disk /dev/sda: 41.1 GB, 41110142976 bytes
255 heads, 63 sectors/track, 4998 cylinders, total 80293248 sectors
Units = sectors of 1 * 512 = 512 bytes
[code]....
I created an initrd image using mkinitrd -F, added an according stanza to /etc/lilo.conf and ran 'lilo' after that. Now I can boot on the vanilla huge kernel all right. But I can't seem to boot on the generic kernel. Whenever I try to do this, the boot process stops short on the following error message:
Code:
mount: mounting /dev/md3 on /mnt failed: Device or resource busy
ERROR: no /sbin/init found on rootdev
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Jan 23, 2010
I try to install Slackware to my IDE hard drive and boot first from Slackware DVD. After I loaded huge.s kernel, and tried to partition the hard drive using fdisk by entering "fdisk /dev/hda", I found out that the partition size is max to 3 Gigs instead of 80 Gigs.
I think the kernel is looking at my boot disk, which is around 3 Gigs. How can I make so that it looks at my IDE drive instead at my boot drive? Is there any manual that shows me how to install Linux from scratch this means I want to wipe out all my hard disk and install Slackware Linux there?
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