Debian Configuration :: RAID - Md0p1 Won't Automount At Boot
Mar 24, 2011
If you want, skip straight to the 'QUESTION' at the end of my post & refer to the 'EXPLANATION' later. EXPLANATION: Using Debian 6.01 Squeeze 64-bit. Just put together a brand new 3.3Ghz 6-core AMD. I had a nightmare with my Highpoint 640 raid controller, apparently because Debian Squeeze now handles raid through sysfs rather than /proc/scsi. The solution to this, of course, is to recompile the kernel with the appropriate module for /proc/scsi support. So I thought "screw that" and I've yanked out the raid card & went with Debians software raid. This allowed me to basically complete my mission. The raid is totally up and running, except for one final step... I can't get the raid to automount at boot.
My hardware setup;
- Debian is running totally on a 64Gb SSD. (sda)
- I have 3x 2Tb hard drives used for storage on a raid 1 array (sdc,sdd,sde)
[Code]....
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Jan 6, 2011
I have a small issue where an USB harddisk is not automounting. CD's, USB pens etc. are automounting without issues, so it is a little bit strange.I am mounting it with UUID, because I want the mount point to be the same everytime.As you can see from the fstab, it is NTFS.
dmesg
[92.388083] usb 1-1: new high speed USB device using ehci_hcd and address 4
[93.079778] usb 1-1: New USB device found, idVendor=0bc2, idProduct=0502
[code]...
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Jan 23, 2011
I have a problem copying my udev rules from other distro to another pc running debian. My box is running debian without any DE and I want my USB disks to be automounted based on the label; I believe udev is the nicest way to do this task.
Anyways : my rules are (copied from archlinux wiki btw)
cat /etc/udev/rules.d/92-my-media-automount.rules
# vim:enc=utf-8:nu:ai:si:et:ts=4:sw=4:ft=udevrules:
# /etc/udev/rules.d/92-my-media-automount.rules
# Only work on sd*
KERNEL!="sd[a-z]*", GOTO="my_media_automount_end"
ACTION=="add", PROGRAM!="/sbin/blkid %N", GOTO="my_media_automount_end" .....
I notice the directory is made successfully up inserting the usb HD, but the mount doesn't succeed. If I manually execute above command, the mount goes ok.
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May 17, 2011
I have installed a minimal system with openbox window decorator. (without any window manager) when i insert a flash disk to my computer, system doesn't mount it automaticly. i must mount it to a folder to use it.
for example:
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Jun 15, 2011
I'm running Debian sid and currently have xfce 4.8.0 installed. I have the thunar-volman package and it is configured to automount everything (cdrom & usb). I have hal, udev, gamin and autofs installed as well.For some reason though, automount just isn't working. It's starting to annoy me.I can mount the devices manually.I looked around already but most posts just advise you to install hal or something.
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Dec 10, 2015
I'm running Debian 8.2 and trying to set up so I can plug in a couple of external hard drives that will be used to sync data between systems using rsync.
I've got the rsync bit working how I want, thats not a issue. But what I can't seem to get to work properly is when I plug the devices in, they don't mount automatically.
I've tried various methods to no avail so far, systemd.automount in fstab doesn't seem to want to work, for some reason it gives a I/O error. I've tried setting up udev rules and they don't work either, so I'm a bit of a loss now.
Not sure what info to provide that would be relevant at this time, but can add logs as required easy enough.
This machine is headless, so command line only suggestions would be best. I can access X via the network if I have to, but I'd rather do it by cli for ease of access.
My fstab file
Code: Select all# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>Â Â <type>Â <options>Â Â Â Â <dump>Â <pass>
# / was on /dev/sda1 during installation
UUID=9b4e9dae-ea53-439a-a7fe-87c371c03803 /    xfs   defaults    0    1
# /home was on /dev/sda9 during installation
[Code] ....
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Aug 19, 2010
We've started using Debian based servers more and more in work and are getting the hang of it more and more every day. Right now I'm an ace at setting up partitions, software RAID and LVM volumes etc through the installer, but if I ever need to do the same thing once the system's up and running then I become unstuck.
Is there any way I can get to partman post-install, or any similar tools that do the same thing? Or failing that are there any simple guides to doing these things through the various command line tools?
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Aug 29, 2015
Just setup with Debian 8 (LXDE) a few weeks ago. Raid10 array was preexisting.
Was working well. After booting I would need to go to the save as then would need to enter the root password and everything would be good.
Can't access the array.
Used to use the command $ mount /dev/dm-o /home/myspace/folder under Debian 7.6 to mount the array (no longer works).
blkd lists a /dev/md0 but instead of UUID it is PTUUID
[Code] .....
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Mar 21, 2011
I have 2x 1.5TB hard disks and I'm going to buy a new 2TB drive soon. First though I just wanted to check that I could partition off the first 1/4 to 1/3 of the 2TB drive (leaving 1.5TB or more free) and install Debian to that part, then use the remainder of the disk in combination with the 2x 1.5 TB drives in RAID 5? i.e. can you mix whole drives and with partitions from other drives in RAID 5 and/or is it best to just stick with complete drives for the RAID array?I only have room for 3 drives in the small mATX case that houses my NAS device and I want to maximise storage capacity and minimise expense.
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Dec 19, 2010
Configuration:
Centos 5.4
2 Corsair F80 RAID 0 Intel Storage Matrix
ASUS P6x58D-E
Stripe Size = 128kB
Tried to run Centos 5.5 in Dual Boot Configuration with Windows 7. Windows Y installed without issues within minutes (amazing performance with the SSD's). Installed Centos 5.4 several things that wouldn't work right:
- wouldn't recognize the NTFS partitions. So I decided just to install Centos on the box. Completed installation and rebooted but it wouldn't boot up after the installation. Even in NON RAID configuration it would not boot of the SSD. Replaced SSD's with 2 Seagate Barracuda's 1TB in RAID 0 configuration and all went well.
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Feb 20, 2016
How can i get a RAID virtual image disk?
What i need is to mount several directories from any other partiton (or file system) as a new merge file system that can grow or decrease depending on the free space. As if it was a dinamic RAID,so i can work with huge files distributed over the partitions mounted.
Ejemp: /mnt/sda1/dir_raid1 + /home/dir_raid2 + /mnt/sda3/dir_raid3 ---> /mnt/RAID/
mhddfs and unionfs <---- are not the solution im searching (cant use huge files)
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Mar 4, 2010
I'm trying to do some RAID managing with mdadm. I would like to sync my spare disk and then remove it from the array for making a backup out of it with dd command (the best way i can think of to get the current image of the whole system as it can't be done using the active RAID as source, because is constantly in use and changing). So, I have RAID1 array with 1 spare and 2 active disks (configuration listed below). Now I would like to force spare to sync and then remove it from array, although not faulty.
However, mdadm man page states:
"Devices can only be removed from an array if they are not in active use. i.e. that must be spares or failed devices. To remove an active device, it must be marked as faulty first."
So, I'd have to mark a disk as faulty (which it is not) to be able to remove it from array. There seems to be several people reporting that they can't remove this faulty flag accidentally given to a drive. And mdadm does not give direct for such operation. Isn't there a way I could remove and add disks whenever feeling like it?? One way would be open the cover and physically remove the disk. I'm not taking the risk, though. System is almost always in use, so there is not much chance for me to power off for temporary disk removal.
RAID CONFIGURATION:
~# mdadm --detail /dev/md0
/dev/md0:
Version : 00.90.03
Creation Time : Fri Aug 4 17:38:26 2006
Raid Level : raid1
Array Size : 238950720 (227.88 GiB 244.69 GB)
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Aug 31, 2010
concerning Linux, mdadm, and creating RAID Array's in Debian. I've done a lot of reading and research on RAID both on this board and elsewhere (The Linux Documentation Project's Software-RAID HOWTO is especially good), but I've run across something that no one seems to explain, and I'm not sure why. I'm instructed to create partitions on the drives I wish to add to my array. These partitions inevitably take up the whole disk, and are always have their system IDs set to "Linux raid autodetect". What I don't understand is why, after creating these partitions, some guides then go on to create an array (say a RAID5 one) with just the disks themselves as members, while others go on to create the RAID5 array with the previously created partitions as members. E.g.,
mdadm --create --verbose /dev/md0 --level=5 --raid-devices=4 /dev/sda /dev/sdb /dev/sdc /dev/sdd
vs.
mdadm --create --verbose /dev/md0 --level=5 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
What's the advantage of using one over the other?
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Jul 2, 2011
New to linux in general and am having issues on setting up a Raid 1 array for two disks on an HP Proliant Microserver which I am looking to be accessible from my windows PC. I have installed the latest version of debian succesfully on a 250GB disk that came with the server. I have added 2 2TB disks which I would like to have in a RAID 1 array and to have visible from windows to store music/videos etc on. I have managed to partition the two disks to FAT32 (which I think is best) and have managed to configure the array so that it shows as active when I use cat /proc/mdstat. I have been following the steps in this article [URl]... squeeze-p2 and trying to adapt it to my situation.
I am stuck on the step to create the file systems using the mkfs command. I try mkfs.vfat /dev/md0 and it comes up with the error mkfs.vfat: command not found. I have tried mkfs -t vfat /dev/md0 and it give the error "mkfs.vfat: No such file or directory" So my question is how can I continue with the process of setting up the array? Or maybe I should be asking is it possible to set up an array with FAT32 formatted disks?
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Nov 26, 2015
I'm having issues with a RAID array.
Setup is like this:
Debian Jessie, 2 hard disks, each having 2 partitions: /dev/sda1, /dev/sda2, /dev/sdb1, /dev/sdb2. Partitions were paired during installation, so they form /dev/md0 and /dev/md1. /dev/md0 is the root (/) partition, /dev/md1 is for /home.
At the end of the install process, I chose /dev/sda1 to carry Grub. And I think this is where I screwed things up.
After removing one of the hard drives, there was no boot capability. So, I installed Grub on /dev/sdb, too.
Now it displays the boot menu but cannot find the kernel. This is where I got lost in the process.
Do I need to reinstall the OS or is there a way to fix it? I suppose I have to edit Grub.
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Mar 13, 2010
I just expanded my raid 5 array from 3*2TB to 4*2TB and mdadm made the grow successfully and shows an md0 dev with the size of 6TB usable data. Now my problem is that Debian (Lenny) dosn´t show the right amount. See below
######### MDADM DETAILS OF ARRAY ##########
> mdadm --detail /dev/md0
/dev/md0:
Version : 0.90
Creation Time : Mon Dec 14 22:30:46 2009
Raid Level : raid5
[Code].....
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Mar 29, 2010
Have my proxy running on Lenny and tried to upgrade to squeeze. Originally the system was installed on Etch and upgrading to Lenny was no problem. In the system i have two RAID1 volumes, md0 for / and md1 for /home. For upgrading i added the sources to my apt.conf and startet dist-upgrade. During the installation procedure, when installing udev I was advised to install the new kernel first and continue upgrade after booting the kernel. so I installed the kernel by "apt-get install linux-image-2.6-686. When generating initramfs there was a message, that there are no arrays defined in /etc/mdadm/mdadm.conf I took a look and there were none. mdadm seems to have been update before.
I then added the lines for RAID definition and added the data for UUID The UUID I got from the output of "mdadm --detail /dev/md0"
What I don't understand: blkid gives the same UUIDs for the first partitions of the RAID and a different UUID for /dev/md0 and /dev/md1 than mdadm --detail The update of initramfs for kernel 2.6.32 then gives this result:
update-initramfs -u -k 2.6.32-3-686
update-initramfs: Generating /boot/initrd.img-2.6.32-3-686
W: Possible missing firmware /lib/firmware/e100/d102e_ucode.bin for module e100
W: Possible missing firmware /lib/firmware/e100/d101s_ucode.bin for module e100
[code].....
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Aug 12, 2010
I've got an 8-disk raid-5 setup, and one of the disks failed. I shut the system down, replaced it, and powered the box back on again. Then, I made a catastrophic mistake; I 'failed' and removed the wrong disk (should have been sdj1, and I typed sdk1 by accident). I tried to re-add sdk1 back to the raid array, but it got listed as 'spare'. My raid array is off-line, since I now have 2 disks unavailable.
I know that the data still exists on sdk1, is there any way I can get the raid array to recognise the fact that it's a valid part of the array, and not a spare disk? At least if I can do that, I'll have a degraded but accessible array, and then I can rebuild the array on the properly replaced disk.
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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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Mar 19, 2011
A week ago I opened this thread viewtopic.php?f=17&t=61580 in "Board index ‹ Help ‹ Installation" and asked for a moderator to move this to here. Because it hasnt happened up to know, I am reopening the thread here. It would be reeeeally great if somebody could help me with my problem!
I own two computers, one netbook and one laptop. I want to boot my netbook as a diskless client via PXE.I set up a dhcp-, tftp and nfs-server on my laptop but when i boot my netbook, the follwoing messages are displayed:(to make it more clear, i uploaded the whole output and shortened the output below)
[Code]...
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Jan 8, 2011
I am looking to build a server with 3 drives in RAID 5. I have been told that GRUB can't boot if /boot is contained on a RAID arrary. Is that correct? I am talking about a fakeraid scenario. Is there anything I need to do to make it work, or do I need a separate /boot partition which isn't on the array?
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Dec 22, 2010
I installed Debian 5.0.3 (Backport with .34 Kernel), because my server hardware (Dell PowerEdge R210) needs special firmware and drivers.However, the installation went quite smooth.I put the system on a RAID 1 Array with about 500 GB space.s I said the installation went well, however, it doesn't boot! No GRUB, nothing
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Mar 15, 2011
I newly installed debian squeeze with software raid. The way I did was, as also given in this thread.
- I have 2 HDD with 500 GB each. For each of them, I created 3 partitions (/boot, / and swap)
- I selected the hard drive and created a new partition table
- I created a new partition that was 1GB. I then specified to use the partition as a Physical Volume for RAID. and used for /boot and enabled bootable.
- Created another partition, which is of 480 GB, and then specified to use the partition as a Physical Volume for RAID. and used for /.
- Created another partion and used for swap
Then RAID configuration:
Through Configure RAID menu -> create MD device ->
(2 for the number of drives, 0 for spare devices)
Next select the partitions you want to be members of /dev/MD0. I selected /dev/sda1 and /dev/sdb1 (for /boot)
Next select the partitions you want to be members of /dev/MD1. I selected /dev/sda6 and /dev/sdb6 (for /)
And no RAID for swap partitions
'Finish Partitioning and write changes to disk' --> Finish the rest of the install like normal. Everything is ok now, except I am not sure how to test my raid config. When I pull the power of the HDD, it only boots from one disk. I read in some forum that I may have to install GRUB manually on the other. In Debian Squeeze, there is no grub command. Not sure how to make my software raid bootable from both disk. I configured /boot partitions of both disks to be boot=yes. Not sure whether that is ok.
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Nov 5, 2010
There seems to be a problem with Raid on Debian. I got a new Fujitsu Primergy TS 100 S1 server, with hardware Raid (and 2 disks) installed everything nicely over the net including GRUB - but when it comes to reboot the system does not boot.
Is there anybody here who knows about the problem?
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Dec 1, 2010
I performed an install using the 5.0.6 amd64 netinst cd on a dual opteron server with an Areca ARC-1110 4-port SATA hardware RAID card. I have 2 250GB drives set up as RAID 1. The debian install saw it as only one drive, just as it should. Install went smoothly, but on reboot, the system would not load.
I did some research and tried a couple of things with no luck. Like adding a delay in the grub command. It jus sits at loading system for a while then times out and loads busy box. Just to check things out, I booted into an Ubuntu live-cd and mounted the volume. The file system is there and all of the necessary files. How to use one of these cards successfully?
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Aug 4, 2010
I'm trying to install Debian Lenny on my new Dell XPS 8100 Desktop with 2 x 1To SATA HD. (No Windows or any other OS install is present on the system) The Bios allows me to change the SATA mode to either "ATA" or "RAID"
- When SATA mode is set to RAID, the installation goes without issues, but when it comes to load into the system, I've got that Stage 1.5 Grub Loading... Error 2 problem. I assume this is due to the Bios "RAID" configuration. I then switched the SATA mode to "ATA" in the Bios and now I can see the menu that allows me to boot my debian install but that part actually fails too saying "ALERT /dev/sda1 does not exist"
- When SATA mode was set to ATA, I tried to re-install the system but this time my drive was not recognized by the installer: "No common CD ROM drive"
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Apr 5, 2011
I have just installed Ubuntu (/dev/sda7) and Debian (/dev/sda4), but since I have updated all informations on Ubuntu, then Debian did not appear anymore on the grub list. There is an wiki I have found, but I an not really sure about what to do.
Here are the boot informations:
Boot Info Script 0.55 dated February 15th, 2010
Boot Info Summary:
=> Grub 2 is installed in the MBR of /dev/sda and looks at sector 488861020
of the same hard drive for core.img, core.img is at this location on
/dev/sda and looks on partition #3 for (,gpt3)/grub.
[Code]...
ps: on this file, it says that the /boot is installed on the MBR and /dev/sda3. I will remove the boot from MBR as I am now using /dev/sda3 instead. Sorry for my english
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Sep 19, 2014
I am running a 14 disk RAID 6 on mdadm behind 2 LSI SAS2008's in JBOD mode (no HW raid) on Debian 7 in BIOS legacy mode.
Grub2 is dropping to a rescue shell complaining that "no such device" exists for "mduuid/b1c40379914e5d18dddb893b4dc5a28f".
Output from mdadm:
Code: Select all  # mdadm -D /dev/md0
  /dev/md0:
      Version : 1.2
   Creation Time : Wed Nov 7 17:06:02 2012
     Raid Level : raid6
     Array Size : 35160446976 (33531.62 GiB 36004.30 GB)
   Used Dev Size : 2930037248 (2794.30 GiB 3000.36 GB)
    Raid Devices : 14
[Code] ....
Output from blkid:
Code: Select all  # blkid
  /dev/md0: UUID="2c61b08d-cb1f-4c2c-8ce0-eaea15af32fb" TYPE="xfs"
  /dev/md/0: UUID="2c61b08d-cb1f-4c2c-8ce0-eaea15af32fb" TYPE="xfs"
  /dev/sdd2: UUID="b1c40379-914e-5d18-dddb-893b4dc5a28f" UUID_SUB="09a00673-c9c1-dc15-b792-f0226016a8a6" LABEL="media:0" TYPE="linux_raid_member"
[Code] ....
The UUID for md0 is `2c61b08d-cb1f-4c2c-8ce0-eaea15af32fb` so I do not understand why grub insists on looking for `b1c40379914e5d18dddb893b4dc5a28f`.
**Here is the output from `bootinfoscript` 0.61. This contains alot of detailed information, and I couldn't find anything wrong with any of it: [URL] .....
During the grub rescue an `ls` shows the member disks and also shows `(md/0)` but if I try an `ls (md/0)` I get an unknown disk error. Trying an `ls` on any member device results in unknown filesystem. The filesystem on the md0 is XFS, and I assume the unknown filesystem is normal if its trying to read an individual disk instead of md0.
I have come close to losing my mind over this, I've tried uninstalling and reinstalling grub numerous times, `update-initramfs -u -k all` numerous times, `update-grub` numerous times, `grub-install` numerous times to all member disks without error, etc.
I even tried manually editing `grub.cfg` to replace all instances of `mduuid/b1c40379914e5d18dddb893b4dc5a28f` with `(md/0)` and then re-install grub, but the exact same error of no such device mduuid/b1c40379914e5d18dddb893b4dc5a28f still happened.
[URL] ....
One thing I noticed is it is only showing half the disks. I am not sure if this matters or is important or not, but one theory would be because there are two LSI cards physically in the machine.
This last screenshot was shown after I specifically altered grub.cfg to replace all instances of `mduuid/b1c40379914e5d18dddb893b4dc5a28f` with `mduuid/2c61b08d-cb1f-4c2c-8ce0-eaea15af32fb` and then re-ran grub-install on all member drives. Where it is getting this old b1c* address I have no clue.
I even tried installing a SATA drive on /dev/sda, outside of the array, and installing grub on it and booting from it. Still, same identical error.
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Jun 2, 2011
I have a Dell PowerEdge SC1425 with two SCSI-disks, that I have tried installing Debian Squeeze on. This machine has previously been running Lenny (with grub 1), and the upgrade was done by booting a live-cd, mounting the root partition and moving everything in / to /oldroot/, then booting the netinstall (from USB), selecting expert install and setting up everything (not formatting the partition).
Both disks have identical partition tables:
/dev/sda1 7 56196 de Dell Utility
/dev/sda2 8 250 1951897+ fd Linux raid autodetect
/dev/sda3 * 251 9726 76115970 fd Linux raid autodetect
/dev/sda1 and /dev/sdb1 contain a Dell Utility, that I have left in place.
/dev/sda2 and /dev/sdb2 are members of a Raid-1 for swap.
/dev/sda3 and /dev/sdb3 are members of a Raid-1 for / formatted with reiserfs.
After installation, grub loads, but fails with the following message:
GRUB loading.
Welcome to GRUB!
error: no such disk.
Entering rescue mode...
grub rescue>
Doing "ls" shows:
(md0) (hd0) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1)
I can do the following to get grub to boot:
set root=(hd0,3)
set prefix=(hd0,3)/boot/grub
insmod normal
normal
This will bring me to the grub menu, and the system boots.
It appears that grub has only found md0, which I believe is the swap partition, because ls (md0)/ returns error: unknown filesystem. I have installed grub to both sda, sdb and md1, and tried dpkg-reconfigure grub-pc and dpkg-reconfigure mdadm, as well as update-grub.
I manually added (md1) /dev/md1
to /boot/grub/device.map, but still no result.
I have run the boot_info_script.sh, but unfortunately I cannot attach the RESULTS.txt, because the forum aparently does not allow the txt-extension. Instead I have placed it here: [URL]. I am tempted to go back to grub-legacy, but it seems I am quite close to getting the system working with grub2.
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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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