CentOS 5 :: Server Won't Boot - RAID1 Errors?

Aug 9, 2010

Not sure on what is going on here. The server is RAID1 through hardware RAID. It was running an unusual high load so I rebooted it. Now it won't boot up. I am getting these errors after the CentOS boot screen:sda: Current [descriptor]: sense key: Medium ErrorAdd.Sense: Address mark not found for data field

end_request: I/O error, dev sda, sector 3040555357
device-mapper: raid1: A read failure occurred on a mirror device.
device-mapper: raid1: All sides of mirror have failed.

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CentOS 5 Hardware :: HDD Dma _intr Errors After Rebuilding Raid1 Array

Sep 2, 2009

I've got a mailserver set up in a raid1 array.I shut down the system to install a CD-ROM drive but forgot to change the master/slave settings (I know, don'tt say anything) and didn't realize it before Centos started booting up, so it booted the hdc drive from the array.I rebuilt the array using mdadm without any apparant issues but on subsequent bootup, I get the following error :

kernel: hdc: dma_intr: status=0x51 { DriveReady SeekCompleteError }
kernel: hdc: dma_intr: error=0x84 { DriveStatusError BadCRC }
kernel: ide: failed opcode was: unknown

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There doesn't seem to be any side effects to this but since that didn't happen prior, I figure there's probably something I didn't do properly since I'm fairly new to the linux world.My raid array was originally set up by the Centos instal software and is set up like this :

hda1 + hdc1 = md0 (boot)
Hda3 + hdc3 = md2 (/)

The other partitions are of the same size on each drive and are swap partitions.

PS : The drive is SMART capable and no errors appear during a self-test.

edit : Clonezilla also fails to boot properly although I don't know if its due to a software raid array in the first place or the errors in the filesystem. When only one drive was detected because of the jumpers, it booted properly.

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Server :: Best Way To RAID1 The Boot Drive?

May 17, 2010

I am self teaching everything I need to develop a home-based web server (linux/apache/php/mysql/html/css/etc...) It's quite an undertaking, but not beyond my abilities. I thought this question could have gone in either the linux - software or linux - hardware forum, and certainly not in the n00b section, but I figured it's best be put in the linux - server forum, since that's what this is related to.

I have been looking into the software and hardware RAID solutions for linux because I wanted to make sure that the boot drive of the web server I set up is mirrored with transparent disk fail/replace/recovery. I mean, setting up a boot drive for RAID1 sounded perfectly logical to me, and why wouldn't it to anybody else? So, since I knew RAID controllers were expensive, I looked into the native software RAID support in linux. My findings have revealed an issue with software raiding a boot drive in not only linux but windows as well. Apparently, if the primary drive fails (not the mirror), you have no other option but to power down the system to properly replace the failed disk, reboot, play some config crap, resync the drive, do some more config crap, reboot again, and -hopefully- it'll be ok. Well, that procedure is simply out of the question since the idea behind RAID is to transparently proceed as if nothing happened.

I'd like to know if it's even possible to RAID1 the boot drive for transparent and automatic fail/hot-swap/recover WITHOUT rebooting the system and with no intervention on my part other then replacing the drive whether it be a software raid or hardware raid solution. Eventually, what I'd like to do for a drive configuration is have 3 RAID volumes on the server configured like so:

RAID volume 1 = boot drive w/ webserver installed
RAID volume 2 = database files
RAID volume 3 = flatfile storage
Each raid volume will be a RAID1 of a 1TB drive (total = 6 x 1TB drives)

I've seen a lot of people having failure issues with the software RAID in these forums. Is this more common than not? I'm certainly not opposed to buying a hardware RAID solution as long as they're reliable and provide transparent/automatic recovery. So what's the best way to RAID1 the boot drive for transparent/automatic failover?

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Server :: Raid1 On Debian Won't Boot After Growing?

Apr 21, 2010

I installed a raid1 on a debian lenny box with only 1 drive "--raid-devices=1" because I didn't have the other drive yet. When I got the other drive, I used "mdadm --grow /dev/md0 --raid-devices=2" and "mdadm --manage /dev/md0 --add /dev/sdb1" The original drive is sda1. I watched /proc/mdstat until it was completely synced, and after a reboot, the system will not reassamble the raid. It fails with "mdadm: no devices found for /dev/md0" This is where root is, therefore, I get nowhere. From a rescue cd I can disable the other drive and shrink back down to 1 device and it boots fine.

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CentOS 5 :: Fresh Installed Server With Large Partition In RAID1 Config High Serverload

Mar 15, 2009

Yesterday I installed a new server with a large partition for my XEN images. This partition is a about 930GB. The installation tooks ages and after he finished I was finding out why that is. The SoftRAID1 I configured is rebuilding the large partition.

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CentOS 5 Hardware :: Hard Disk Crash / Data Recovery In RAID1 Webhosting Server

Feb 1, 2011

We have had a hardisk crash in our RAID1 webhosting server running CentOS5 and Plesk. We first realized something was wrong when our main site didn't load but showed MySQL errors. We then found out that the system was in read-only state. Something that also happened the day before yesterday, but we could fix with a FSCK. Then the system worked well til around 18 hours later when it crashed with the same sympoms. So, we rebooted the server and wanted to do a filesystem check again. But the HDD wouldnt even load. It was gone. Unfortunatelly it was not realized that the second disk in the system was also not working any more for some time now. Fortunatelly we had our main site backed up externally though. So we could re-install a fresh box and mounted the two drives to the system. We checked the harddisk. One is practically empty (the older one), the other has almost only files in 'lost + found' but these are all "numbered", no real filenames or so.

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CentOS 5 :: Create New RAM Image File To Get Server Load Raid1 Module Upon Start - Mkinited Error No Kernel Available For 'inited-2.6.18-128.el5"

Nov 12, 2009

I'm trying to create new RAM image file to get my server load raid1 module upon start, I was following redhat documentation & it suggested to use the following command mkinited --with=raid1 inited-raid1-$(uname -r).img $(uname -r) However after running this command I'm getting this message No Kernel available for 'inited-2.6.18-128.el5"

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CentOS 5 :: Errors / Warnings At Boot?

Sep 14, 2010

I've made a CentOS 5 x86_64 setup last year, around november/december.This system is supposed to operate as a home router/gateway, firewall, nas, small intranet/extranet server and media center.I've previously built a system using older parts (Pentium III 866MHz), and had on it CentOS 5 x86.It successfully served the same purpose (except nas and media center) for quite some time, about 1-2years, until i felt i needed better hardware (more memory, speed and disk space mainly) and 64-bit support.

Part of this intended setup isn't finished (router/gateway, firewall, media center), partially because i'm still lacking a good 1000mbps switch and a supported wireless n 3-antenna card in AP/server mode.In the previous setup, i had router/gateway, firewall and small intranet/extranet server working, with a crappy 100mbps switch (the switch is broken now).the new setup has run pretty well, it had been upgraded 2 times, etc...But since it has been installed, even before any updates, upgrades or repo additions, there has been always warnings/errors during kernel boot.I'm listing my specs, configs, versions and logs bellow. all the partitions, RAID and LVM were created during CentOS initial setup.

Hardware:
Case:1x Cooler-Master CM-690 II Advanced (RC-692-KKN2)
PSU:1x Corsair VX450W (CMPSU-450VX)

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CentOS 5 :: Boot Errors - DHCPD Comes Failed

Aug 23, 2009

My box is centos 5.3 x86. At booting, ipsec_setup messages are coming as attached picture.
And dhcpd also comes "failed".

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CentOS 5 :: After Updating To The Version (2.6.18-164.el5), The Server Is Not Stable And I Have Got A Lot Of Errors?

Sep 23, 2009

I am running CentOS release 5.3 (Final)
kernel: CentOS (2.6.18-53.1.13.el5)

After updating to the version: CentOS (2.6.18-164.el5), the server is not stable and i have got a lot of this kind error:

Sep 19 02:08:36 server kernel: EXT3-fs error (device sda8): ext3_lookup: unlinked inode 3372068 in dir #5148223
Sep 19 02:08:36 server kernel: Aborting journal on device sda8.
Sep 19 02:08:36 server kernel: EXT3-fs error (device sda8): ext3_lookup: unlinked inode 3372071 in dir #5148223[code].....

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CentOS 5 Server :: Can Send Mail But Cannot Receive - No Errors

Aug 21, 2011

I recently purchased a domain and I have setup what I believe are correct dns records from the domain companies control panel. I have the domain pointing to my server and that's working fine. I also have an MX record for my domain. Now, I can send emails from my email account just fine however I cannot receive any emails coming in to my account. Heres an example:

[dalton@int-interactive mail]$ echo "hello world" | sendmail -v dalton@int-interactive.com
dalton@int-interactive.com... Connecting to [127.0.0.1] via relay...
220 int-interactive.com ESMTP Sendmail 8.13.8/8.13.8; Sun, 21 Aug 2011 14:45:16 -0400

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CentOS 5 Server :: Httpd Daemon Not Active On Startup - No Errors?

Oct 31, 2010

I've added httpd to runlevels 2-5 using chkconfig, and also double checked it using ntsysv, but it still won't run on startup, even though it works just fine when started manually (using "sudo service httpd start").The results of "chkconfig --list httpd" show it is on for levels 2-5, and I've confirmed the current runlevel to be 3. I've found no errors in the logs (neither Apache's nor the system's), but maybe I'm looking at them wrong...My machine is a VPS (on VMWare) running CentOS 5.5 32bit. For additional information, see the output of getinfo.sh: http://pastebin.centos.org/35570I would greatly appreciate help on this, as it is delaying our NGO from moving servers.

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CentOS 5 :: /dev/mapper And 5 Installation With RAID1?

Sep 28, 2009

I am using CentOS 5.2. I am installing from disc on a machine with Intel Embedded Server Raid Technology. It has two 500 GB SATA drives. During the initial boot process, it sees that these two devices exist. However, after getting into the screen to partition and configure RAID, it just shows this:

Drive /dev/mapper/ddf1_MegaSR R! #0 (475879 MB) (Model: Linux device-mapper)

I want to do a RAID1 so that the disks are mirrored. However, I would expect to see both drives listed. I can select RAID to create RAID partitions, but I think I need to be able to see both drives in order to do this correctly.

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CentOS 5 :: New Disks (RAID1), Not Enough Space?

Jan 13, 2011

I recently followed this guide to create a RAID1 [URL]First I partitioned the disks with fdiskI made the RAID array with

mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1

Then I created the filesystem with

mkfs.ext3 /dev/md0

I then mounted md0 at /Video with

mount /dev/md0 /Video/

Today I made a samba-share out of /Video/Rorschach to easily put files in there from my windows7-machine (the plan is to steam from my CentOS-server to my HTPC which hasn't arrived yet).I started to put movies in there. It went just fine for a while but then I got this message:

[URL]

How is that even possible when df -h looks like this?:

[root@Rorschach Rorschach]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
446G 70G 354G 17% /

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CentOS 5 :: How To Mount A New Hardware RAID1

Jun 11, 2011

I'm new to Centos and very new to RAID/hd setup. I have a old HP proliant G3 ML150. I have no drivers cd or other, only the server. I have created a RAID1 array (named SYSTEM) with 2 HD of 250GB from the controller and have installed Centos 5.2 (updated after to 5.6). The installation is ok. Now I have added 2 HD of 1TB each and have created another RAID1 array (named DATI) from the controller. This RAID is to store data files. (And next I have to add another RAID1 for backup, but this is to do next week). how can I format and add it to Centos so I can use it?

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CentOS 5 :: Resizing Software RAID1 Partitions

Oct 22, 2009

I have software RAID 1 on two physical discs. There are now 4 md -partitions (md0 ... md3), which are used in such as / and /home among others. Now current size of /home (md3) is starting to be full, and since / (md1) has more than plenty of free space I decided to fix the situation by shrinking / (md1) partition to free 40 Gigs of space and then growing /home (md3) partition for that 40 Gigs.

I already checked for some info using mdadm and got the following:

Now I would need some support on HOW exactly should I do this resizing since it is on RAID partitions.

Would it be good to use resize2fs to modify the filesystem sizes and mdadm to configure the partition sizes. Or could I perhaps get over this even easier by using GPartED (in case it supports my RAID)? Has anyone here done similar resizing on software RAID1 partitions?

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CentOS 5 :: Possible To Add Second Hard Drive To Create Raid1?

Jul 2, 2010

The motherboard currently installed on my PC has a RAID Utility (Ctrl+I) at the startup that allow creating RAID1. But I already have a system installed with CentOS 5.4. In order to protect my data, I need RAID1. Can I add another Hard Drive now and have the data mirrored and synced onto both hard drives as if it was in RAID1 right from the beginning?

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CentOS 5 Hardware :: ASUS M3A78-CM RAID1 Not Recognized

Aug 28, 2009

OS Version: CentOS 5.3
Motherboard: ASUS M3A78-CM (BIOS v.2003)

I have a single disk running the base OS and just installed 2 x Seagate 500GB SATA 3.0 drives in a RAID1 set that I would like to use for data storage. The OS sees the drives individually but not the RAID. Has anyone worked with a similar board and has any ideas what I need to do to get the OS to recognize the RAID1 array?

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CentOS 5 Hardware :: Software RAID1 Arrays Disappearing

Jun 22, 2010

I created two software RAID1 arrays with the following commands:

mdadm --create /dev/md2 --level=1 --raid-devices=2 -v /dev/hda5 /dev/hdc5
mdadm --create /dev/md3 --level=1 --raid-devices=2 -v /dev/hda6 /dev/hdc6

and I verify that /dev/md2 and /dev/md3 exist. But if I reboot the computer, these two devices are gone. I'm sure I am overlooking a step but I can't seem to find what it is. Could someone tell me what I need to do next?

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CentOS 5 Hardware :: 5.5 On An Intel S5500BC Board With RAID1?

Nov 23, 2010

I'm trying to load CentOS 5.5 on a new server with an Intel S5500BC motherboard using RAID 1. This board has a known problem with RHEL 5.x and the driver disk supplied has a fix. Here is the download for the driver [URL] Under the ESRT2_RHEL4-5_SLES9-1--11_v.13.21.2010_README file are directions in Section 3.1.3 on how to install the RHEL5x megasr driver. This works. The last thing replaces the ACHI driver with the megasr driver (paragraph 15) by loading the megasr.13.21.0614.2010-1-rhel50-u4-all.img in a temp file and then type "./replace_achi.sh". This step doesn't work and it is the critical one as it replaces the achi with megasr in the initrd image.

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CentOS 5 :: Permanently Remove Drive From Md Array (RAID1)

May 14, 2011

I installed a distro based on CentOS 5.5 (FreePBX distro FYI). It used an automated kickstart script to create an md RAID1 array of all the hard drives connected to the machine. Well, I installed from a thumb drive, which the script in interpreted as a hard drive and thus included in the array. So, I ended up with three md arrays (boot, swap, data) that included the thumb drive. Even better, it used the thumb drive for grub boot so I couldn't start up without it. I was able to mark the USB drive as 'failed' and remove from each array, and even change grub around to boot without the usb drive, but now each of the arrays is marked as degraded:

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Fedora :: F13 - Boot With RAID1 / LVM / Dracut?

Dec 10, 2010

I am trying to boot my F13 server that has 3 partitions (sda2,sdb2,sdc2) configured as RAID1 (md0), vg00 is on md0 and / is on vg00/lvol00 and boot is on /dev/sda1, sda3,sdb3 and sdc3 contain other non-OS data and I get the following errors
dracut scanning devices sda3,sdb3,sdc3 for LVM logical volumes vg00/lvol00 vg00/lvol01
.
dracut: Volume group "vg00" not found
dracut: Skipping volume group vg00
dracut: Autoassembling MD Raid
No root device round
and then everything stops
If I go in with rdshell and type in -

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Ok I managed to solve it. When I originally installed F13 I had 2 partitions in md0 and later on I added /dev/sdc2 to make it a 3 partition Raid 1 array. My thinking was seeing that I had the extra space it wouldn't hurt to use it as another mirror. One month later after I booted the server I have found out it did hurt. I removed the 3rd partition and now it's fine again. I wonder though if it would be possible though to use that 3rd partition.

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Server :: System Image Of Intel Server RAID1?

Aug 2, 2011

I have an Intel server, which has it's two SATA HDD's in "Intel Embedded Server RAID Technology 5.4" RAID1 volume. How to proceed with a system image in case two of those SATA HDD's fail at the same time? Should one take the first HDD of RAID1 volume, connect it to another machine and execute:

Code:

# ddrescue /dev/sda1 /media/External/image_of_first_hdd /media/External/log_of_first_hdd
* HDD from the problematic RAID1 volume would be recognised as /dev/sda1 behind new machine
* /media/External/ is a mount point for large external HDD in the new machine
* log_of_first_hdd would be the log file

..and then take the second HDD to another machine and execute:

Code:

# ddrescue /dev/sda1 /media/External/image_of_second_hdd /media/External/log_of_second_hdd

how to make system image using ddrescue in case disks are in "Intel Embedded Server RAID Technology 5.4" RAID1?

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CentOS 5 Hardware :: 2TB Drive Installed RAID1 Not Mounting In Fstab

Aug 15, 2010

I have installed a 2TB drive in my dual PIII 866 with 750MB ram. The drive is properly installed and I have configured the drive with 1 partition in RAID1. The array loads fine, but when I add the entry to mount the /dev/md2 /data/repository the following error occurs The filesystem size according to the superblock is 488378000 blocks The physical size of the device is 488377986 blocks Either the superblock or partition table is likely corrupt I have run fsck manually with no errors reported. I have removed the partition and rebuilt the array. The array assembles properly and I can manually mount the /dev/md2, but as soon as I add the entry to the fstab I get dropped to a shell after a reboot. Not sure where to go now?

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OpenSUSE Install :: 11.1 Machine Won't Boot To RAID1 Md0?

Mar 2, 2010

I cleverly built a machine with two drives mirrored, boot partition on the mirror. It crashed some time when I was not present, and was apparently writing to disk at the time, for since, it will not boot. I get error messages to the effect that there is no boot partition. At this point I am not particularly concerned to try to rebuild this array, though I have read a hell of a lot on the boards about trying that (and am daunted - everyone assumes you can boot the machine with the bad array). Instead, I am wondering is it possible to build a simple machine on a third disk, then "look" at the disks in the former (?) array, and/or potentially rebuild it?

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Ubuntu Servers :: Boot From Raid1 (mdadm) + Lvm

Aug 11, 2010

intending to set up an all-in-one server, i threw in the ubuntu server 10.04 (amd64) cd. during the text-install, i set up the device-topology below, and it worked.

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then i tested my raid by hot-pulling off the sda wire (ouch). worked fine, system still worked, and it also managed rebooting from the left sdb (which of course showed up being sda, lacking the first drive). now i am trying to recover this pre-crash state. adding the first disk (showing up as sdb), i can add it to md0 and let it start syncronizing for 2 hours. but... i can?t boot anymore with the recovered first disk being sda...

at first, booting got stuck in an initrd-prompt after complaining it couldn?t find my sys-logical volume. after a lot of trial and error i don?t even get any complaints, just a black screen which would let me wait for a boot for weeks... so, my system does not boot from my first disk, whether i plug in the second or not. my second disk still boots. my last attempt to get booting fine again has been: zero sda?s first and last gigabyte to kill any ids duplicate sdb?s first cylinder to sda to make it bootable reinitialize sdb?s part.table using command o in fdisk for a new disk-id recreate sda1 partition add sda1 to md0

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Ubuntu :: Raid1 Array Won't Start On Boot

Jan 2, 2011

I created a raid1 disk with Disk Utilities on with Karmic, then upgraded my system to Lucid then Maverick. This Raid disk is just a data store, I'm not booting off of it. when I reboot the raid1 disk does not start. I have to go into Disk Utilities, stop the array and then start it. Then it comes up and I can mount it. I ran dpkg-reconfigure mdadm and it created a valid entry in mdadm.conf. but the array still does not start on boot. I want to have it auto mount with fstab but need to make sure the array starts first.

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CentOS 5 Hardware :: 4k Sectors (Advanced Drive Format In WD Lingo) And RAID1

Dec 29, 2010

I have 2 WD20EARS hard drives on the way (2 TB green WD disks with 4k sectors) and I'll be installing Centos 5.5 in RAID1 on them (2 partitions, one 16 GB / at the beginning and the rest in its own partition). I read the following thread: [URL]

and it seems that I might be having problems with the 4k sectors (Advanced Drive Format in WD lingo). I'm confused as to what exactly to do. I was thinking of downloading Fedora 14 Live CD and partitioning there and then switching to Centos 5.5 to install. Will that work? Seems I want the md 0.9 metadata because it doesn't have the space limit for me (2 TB) and it's stored at the end of the partition so it avoids alignment issues. Will I be able to make that happen with Fedora 14?

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CentOS 5 :: Ex3fs On Mdadm/raid1 Freeze/lock-ups On Heavy Write?

Feb 27, 2011

I've faced the problem with server freeze on heavy write.

System

CentOS 5.5 x64_86 with latest updates and kernel (2.6.18-194.32.1). Also tried 2.6.18-194.26.1 and 2.6.37-2 from ELRepo with the same results.
CPU: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
Memory: 3 x 2Gb DDR3.
HDDs: 2 x Western Digital WDC WD1002FBYS-02A6B0

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OpenSUSE Install :: Unable To Boot From A Faulty RAID1?

Jul 14, 2010

opensuse 11.2 64 bits installed in a RAID1 software array. Everything worked smooth during installation, the system boots, the mdx partitions are in their places, did the upgrades, configured the way i wanted, booted several times... all ok. Then i wanted to test the RAID and since its RAID1 i just disconnected 1 drive and started the computer. All what i got is

GRUB loading stage 1.5
GRUB loading, please wait...
Error 21

Connect the drive back and the system works ok.

Disconnect the other drive, then i got
GRUB loading stage 1.5
GRUB loading, pleas wait...
(hd1,0)/message: file not found
and a simple boot menu (in character mode) shows up with the 2 options SUSE LINUX and Failsafe -- SUSE LINUX (no version number)

[Code].....

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