Raid-0 (ICH9/10R) + Win7 dual boot = Grub cannot install

[devoluti0n]

Hi mates.
First, I'm sorry for my bad english, I'll try to do my best.
As I didn't have helping answers from the french community I decided to come here :).

I'm having serious troubles to install ubuntu-10.04.1.
My raid is an hardware raid with intel chipset.

Note that win7 is already installed and working with my raid.
I made some space from windows, to install Ubuntu (40gb).

First, I run the installer, everything seems to be fine.
I choose to install Ubuntu were there is the most space free (sorry, I'm not sure about the real terms used there).

Then my partition with the vista loader appears. So the installer can see my raid, and should work fine (everything is detected correctly).

But once I'm in the end of the installation (around 95%), a pop-up appears, and tells me that Grub can't install in /dev/sda and it's a fatal error.

I can choose an another destination, but it doesn't seems to work.

What did I miss ? I hope you will find an answer, thanks in advance ! :)

[ronparent]

Grub cannot install to /dev/sda2 if it is one of the disks in raid and it is fatal only if you don't fix it. You need to reinstall grub as given in the following: https://help.ubuntu.com/community/Grub2#Reinstalling GRUB 2

Some comments to help. In /dev/mapper you will find listed all the symbolic links - the raid followed by all its individual partitions (ignore control). The partition you are trying to mount from the live cd is the symbolic link for the raid partition you installed to - ie /dev/mapper/<yourinstallpartitionRAID#>. The location you are trying to place the grub boot loader on is the raid name.

Post if you need more information. Good luck.

[devoluti0n]

Thank you for your answer, but I'm totally lost. I'm actually installing Linux for the first time so my knowledge is very small.

-Do I need to install it from the live CD as I did before ? And then, when the error show up, I select the option to not install Grub. This is it ?
-Then I have to install it manually as written in your link ?

And what I don't understand in your message, is this part :

In /dev/mapper you will find listed all the symbolic links - the raid followed by all its individual partitions (ignore control) Theses links are links to my individuals hdd arn't they ?
So this mapping is the symbolic name of my raid, isn't it ?


The partition you are trying to mount from the live cd is the symbolic link for the raid partition you installed to - ie /dev/mapper/<yourinstallpartitionRAID#>


The location you are trying to place the grub boot loader on is the raid nameWhat do you mean ? That I'm not aiming the raid by choosing "/dev/mapper/<MyInstallpartitionRAID#>" but only his symbolic name ?

If so, how can I make it aim the raid correctly ?

Thanks for your help, and again, I'm really sorry for my bad english =).

[ronparent]

Go to this site: http://sourceforge.net/project/platformdownload.php?group_id=250055

There you will find a downloadable and executable Boot Info Script. Follow the instructions on the site to run it and post the results here. It will give us enough information about your system so that we can better tell you how to fix it.

In windows you would never expect to work directly with you raid. Win 7 especially recognizes it and automatically installs the drivers so that you can use your disks in a raid. In linux, instead of a driver, a program called dmraid fill the same purpose. With 10.04 on the process becomes more automatic. Unfortunately there are still some things you have to do to overcome some of the shortcomings that still exists. This requires you to learn more about how raid works in your system.

One of these shortcomings is that the 10.04.1 installer often doesn't properly install the grub 2 bootloader which you need to select and load any program on you computer. This is fixable and what we have to fix. The results from running the boot info script will provide enough information so that we can guide you in fixing it. Have you read any part of the grub2 documentation I pointed you to?

[devoluti0n]

Okay, I'm back and ready to try all this.
I'm booting to my linux live cd right now and executing this script.
I'll post my results once I'll have reinstalled ubuntu.

[devoluti0n]

Here is the RESULTS.txt content :

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Syslinux is installed in the MBR of /dev/sdc

sdc1: __________________________________________________ _______________________

File system: vfat
Boot sector type: Fat32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

mapper/isw_bafdiffaia_Red: __________________________________________________ _______________________

File system: linux_raid_member
Boot sector type: Unknown
Boot sector info:

=========================== Drive/Partition Info: =============================

Drive: sdc ___________________ __________________________________________________ ___

Disk /dev/sdc: 8462 MB, 8462008320 bytes
255 heads, 63 sectors/track, 1028 cylinders, total 16527360 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sdc1 * 63 16,527,359 16,527,297 c W95 FAT32 (LBA)


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/mapper/isw_bafdiffaia_Red1 08F44145F44135EA ntfs Réservé au système
/dev/mapper/isw_bafdiffaia_Red2 F2A6429AA6425F6B ntfs
/dev/mapper/isw_bafdiffaia_Red 51f72bcf-1e26-ca80-c1a0-ede2371d3b6b linux_raid_member
/dev/mapper/isw_bafdiffaia_Red5 574bf494-7397-4964-9721-cb792f76eaa5 ext4
/dev/mapper/isw_bafdiffaia_Red6 51f72bcf-1e26-ca80-c1a0-ede2371d3b6b linux_raid_member
/dev/sda isw_raid_member
/dev/sdb isw_raid_member
/dev/sdc1 4E39-62B5 vfat MYLINUXLIVE
/dev/sdc: PTTYPE="dos"

=============================== "ls -R /dev/mapper/" output: ===============================
/dev/mapper:
control
isw_bafdiffaia_Red
isw_bafdiffaia_Red1
isw_bafdiffaia_Red2
isw_bafdiffaia_Red3
isw_bafdiffaia_Red5
isw_bafdiffaia_Red6

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sdc1 /cdrom vfat (ro,noatime,fmask=0022,dmask=0022,codepage=cp437,i ocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 /rofs squashfs (ro,noatime)

=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on mapper/isw_bafdiffaia_Red

00000000 33 c0 8e d0 bc 00 7c 8e c0 8e d8 be 00 7c bf 00 |3.....|......|..|
00000010 06 b9 00 02 fc f3 a4 50 68 1c 06 cb fb b9 04 00 |.......Ph.......|
00000020 bd be 07 80 7e 00 00 7c 0b 0f 85 0e 01 83 c5 10 |....~..|........|
00000030 e2 f1 cd 18 88 56 00 55 c6 46 11 05 c6 46 10 00 |.....V.U.F...F..|
00000040 b4 41 bb aa 55 cd 13 5d 72 0f 81 fb 55 aa 75 09 |.A..U..]r...U.u.|
00000050 f7 c1 01 00 74 03 fe 46 10 66 60 80 7e 10 00 74 |....t..F.f`.~..t|
00000060 26 66 68 00 00 00 00 66 ff 76 08 68 00 00 68 00 |&fh....f.v.h..h.|
00000070 7c 68 01 00 68 10 00 b4 42 8a 56 00 8b f4 cd 13 ||h..h...B.V.....|
00000080 9f 83 c4 10 9e eb 14 b8 01 02 bb 00 7c 8a 56 00 |............|.V.|
00000090 8a 76 01 8a 4e 02 8a 6e 03 cd 13 66 61 73 1c fe |.v..N..n...fas..|
000000a0 4e 11 75 0c 80 7e 00 80 0f 84 8a 00 b2 80 eb 84 |N.u..~..........|
000000b0 55 32 e4 8a 56 00 cd 13 5d eb 9e 81 3e fe 7d 55 |U2..V...]...>.}U|
000000c0 aa 75 6e ff 76 00 e8 8d 00 75 17 fa b0 d1 e6 64 |.un.v....u.....d|
000000d0 e8 83 00 b0 df e6 60 e8 7c 00 b0 ff e6 64 e8 75 |......`.|....d.u|
000000e0 00 fb b8 00 bb cd 1a 66 23 c0 75 3b 66 81 fb 54 |.......f#.u;f..T|
000000f0 43 50 41 75 32 81 f9 02 01 72 2c 66 68 07 bb 00 |CPAu2....r,fh...|
00000100 00 66 68 00 02 00 00 66 68 08 00 00 00 66 53 66 |.fh....fh....fSf|
00000110 53 66 55 66 68 00 00 00 00 66 68 00 7c 00 00 66 |SfUfh....fh.|..f|
00000120 61 68 00 00 07 cd 1a 5a 32 f6 ea 00 7c 00 00 cd |ah.....Z2...|...|
00000130 18 a0 b7 07 eb 08 a0 b6 07 eb 03 a0 b5 07 32 e4 |..............2.|
00000140 05 00 07 8b f0 ac 3c 00 74 09 bb 07 00 b4 0e cd |......<.t.......|
00000150 10 eb f2 f4 eb fd 2b c9 e4 64 eb 00 24 02 e0 f8 |......+..d..$...|
00000160 24 02 c3 49 6e 76 61 6c 69 64 20 70 61 72 74 69 |$..Invalid parti|
00000170 74 69 6f 6e 20 74 61 62 6c 65 00 45 72 72 6f 72 |tion table.Error|
00000180 20 6c 6f 61 64 69 6e 67 20 6f 70 65 72 61 74 69 | loading operati|
00000190 6e 67 20 73 79 73 74 65 6d 00 4d 69 73 73 69 6e |ng system.Missin|
000001a0 67 20 6f 70 65 72 61 74 69 6e 67 20 73 79 73 74 |g operating syst|
000001b0 65 6d 00 00 00 63 7b 9a 42 ce d1 c7 00 00 80 20 |em...c{.B...... |
000001c0 21 00 07 df 13 0c 00 08 00 00 00 20 03 00 00 df |!.......... ....|
000001d0 14 0c 07 fe ff ff 00 28 03 00 00 48 53 35 00 fe |.......(...HS5..|
000001e0 ff ff 05 fe ff ff fe 71 56 35 02 18 e2 04 00 00 |.......qV5......|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200

Hoping you can help me with it :)
Oh and I forget to say that the 8gb partition is my usb key, on which I'm running the actual live ubuntu.
It seems to be the sdc drive.
I'm afraid we can only see boot information from this key. Or maybe I'm (certainly ?) wrong.

Edit 2 : In Gparted, it only see /dev/sda - /dev/sdb and /dev/sdc.
Which are : My raid hdd1 and hdd2, and my ubuntu usb live key. No raid is detected here.

Edit 3 : Okay, this is what I tried :
- sudo mount /dev/mapper/isw_bafdiffaia_Red5 /mnt
- sudo grub-install --root-directory=/mnt/ /dev/mapper/isw_bafdiffaia_Red5

But here is the output of this last command :

You have a memory leak (not released memory pool):
[0x253c1e0]
You have a memory leak (not released memory pool):
[0x24941e0]
You have a memory leak (not released memory pool):
[0x1585be0]
You have a memory leak (not released memory pool):
[0x19ccbe0]
/usr/sbin/grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea..
/usr/sbin/grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and its use is discouraged..
/usr/sbin/grub-setup: error: if you really want blocklists, use --force.
You have a memory leak (not released memory pool):
[0x1c65c00If we forget the memory leak cause we don't really care here, it suggests to isntall Grub to the MBR, how can we do that please ?

I also tried with : "sudo grub-setup -d /media/574bf494-7397-4964-9721-cb792f76eaa5/boot/grub /dev/mapper/isw_bafdiffaia_Red5"
Same error as before.

So I used the --force argument.
Then if I want to use : sudo update-grub , it says : cannot find a device for / (is /dev mounted?)
same for : sudo grub-mkconfig -o /media/574bf494-7397-4964-9721-cb792f76eaa5/boot/grub/grub.cfg
And I'm sure it is mounted (/dev/mapper/isw_bafdiffaia_Red5 is mounted)

[ronparent]

The correct command should have been:

sudo grub-install --root-directory=/mnt/ /dev/mapper/isw_bafdiffaia_Red

Remember, the boot leader has to be written to the name that represent the entire array.

You just about got it on your own - congratulation. With this one fix you ought to be able to boot. Don't forget to mount your partition first.

[devoluti0n]

Thanks man, I'm giving a try :).

[devoluti0n]

"installation finished". This mean that it worked like a charm this way

But I still can't write :

"sudo update-grub" :


ubuntu@ubuntu:~$ sudo update-grub
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
I tried to remount it :


ubuntu@ubuntu:~$ sudo umount /mnt
ubuntu@ubuntu:~$ sudo mount /dev/mapper/isw_bafdiffaia_Red5 /mnt
ubuntu@ubuntu:~$ sudo update-grub
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).

[ronparent]

You should run up-date grub booted to your hard disk. Or, maybe, try 'sudo update-grub /mnt'?

[devoluti0n]

You should run up-date grub booted to your hard disk. Or, maybe, try 'sudo update-grub /mnt'?

sudo update-grub /mnt doesn't work, I already tried.

Maybe it's because my English is bad, but I don't understand the first part of your sentence, :(, sorry.
Now when my computer boot, I have a Grub prompt, and that's it. I don't know what to do with it. it's because there is no os list to load.

GOT IT !!! :D

Here is what I did :
I rebooted (not sure if it was necessary)

then I typed :


Mount your partition
sudo mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
dpkg-reconfigure grub-pc


Then I followed what was asked me on this new screen. I didn't change anything in it (except that I choose my raid in the list) .
Then I rebooted, and voilà, all my partitions are now bootable.

You deserve the golden medal of the year for your patience. Thanks a lot :).

[ronparent]

Great to hear it has worked out for you. Have fun.

[Fix99]

Dear all, I have the exactly same problem, I had a 9.10 Ubuntu on my red0 machine with raid0 Jmicron HW controller. I upgrade to 10.04LTS and the machine don't boot.
I try all the tests prposed by devoluti0n & ronparent grub 2 install works until where I have to install:
sudo grub-install --root-directory=/media/UUID_nb /media/UUID_nb
here it answer invalid location .....:confused:
The script works bu I can't see the result.....:confused:



Could you help me ?

Sorry my poor english.