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Old 11-16-2009, 01:26 PM
Alex Meier
 
Default Installation issue: after installing Ubuntu 9.10, it hangs on boot

Hi @ll,

I hope this is the correct platform to discuss my problem, otherwise please point me in the right direction.

I installed Ubuntu 9.10 (being new to Ubuntu, but not to Linux in general). After finishing the installation (from an USB pen drive), the
installer told me to reboot. But the system hangs on boot with merely a blinking cursor on the screen, no loader messages (I chose grub2 as
boot loader), nothing.

Since the mainboard does not feature IDE ports and my SATA hdds seem not to be willing to boot, I am only able to use USB pendrive for
diagnostic purposes, for instance the Super Grub Disk. However, I did not succeed to find any useful information to my problem.

Could somebody give me a hint what I can do to either solve the problem or at least diagnose it in more depth?


Some facts:
During Ubunut installation, I configured a software RAID:
My 3 HDDs are partitioned having a 4 GB and a 1,5 TB partition each.
Two of the 3 4 GB partitions are used a RAID1 system disk (root filesystem), the 3rd as a Swap Area.
The remaining three 1,5 TB partitions will then be used as RAID5 but this is a second issue.

Once again:
hda1 ... 4 GB added to RAID device #0 (RAID1)
hda2 ... 1,6 TB added to RAID device #1 (RAID5)
hdb1 ... 4 GB added to RAID device #0 (RAID1)
hdb2 ... 1,6 TB added to RAID device #1 (RAID5)
hdc1 ... 4 GB added to RAID device #0 (RAID1)
hdc2 ... 1,6 TB added to RAID device #1 (RAID5)
RAID device #0 ... ext4, mounted at /
RAID device #1 ... ext4, mounted at /data

The BIOS boot sequence is: only from HDD (I disabled booting from removable media or CD-ROM).


Thanx a lot in advance,
Andi

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Old 12-06-2009, 09:18 PM
Mario Abajo
 
Default Installation issue: after installing Ubuntu 9.10, it hangs on boot

Hello,
I had the same problem even with 9.04 and in my case i found a tricky solution. I have a motherboard with a fakeRAID soution based on an
intel ICH10 but i prefer to use the software RAID that come to linux. The problem is that the dm_raid45 module necesary to use fakeRAID that i

"don't" activate during installation is really activate and in some manner blocks the linux software raid. The solution in my case was easy when
i got to find the problem
- Boot from other media (i used the ubuntu alternative install cd)

- Mount the root, the boot and proc partitions
- chroot to the installed ubuntu
- apt-get remove dmraid

In the process it re-make the initrd boot image without the tools and modules of the dmraid and after rebooting it boots perfectly.


Hope it helps you.
Mario


| Hi @ll,
|
| I hope this is the correct platform to discuss my problem, otherwise please point me in the right direction.
|
| I installed Ubuntu 9.10 (being new to Ubuntu, but not to Linux in general). After finishing the installation (from an USB pen drive), the

| installer told me to reboot. But the system hangs on boot with merely a blinking cursor on the screen, no loader messages (I chose grub2 as
| boot loader), nothing.
|
| Since the mainboard does not feature IDE ports and my SATA hdds seem not to be willing to boot, I am only able to use USB pendrive for

| diagnostic purposes, for instance the Super Grub Disk. However, I did not succeed to find any useful information to my problem.
|
| Could somebody give me a hint what I can do to either solve the problem or at least diagnose it in more depth?

|
|
| Some facts:
| During Ubunut installation, I configured a software RAID:
| My 3 HDDs are partitioned having a 4 GB and a 1,5 TB partition each.
| Two of the 3 4 GB partitions are used a RAID1 system disk (root filesystem), the 3rd as a Swap Area.

| The remaining three 1,5 TB partitions will then be used as RAID5 but this is a second issue.
|
| Once again:
| hda1 ... 4 GB added to RAID device #0 (RAID1)
| hda2 ... 1,6 TB added to RAID device #1 (RAID5)

| hdb1 ... 4 GB added to RAID device #0 (RAID1)
| hdb2 ... 1,6 TB added to RAID device #1 (RAID5)
| hdc1 ... 4 GB added to RAID device #0 (RAID1)
| hdc2 ... 1,6 TB added to RAID device #1 (RAID5)
| RAID device #0 ... ext4, mounted at /

| RAID device #1 ... ext4, mounted at /data
|
| The BIOS boot sequence is: only from HDD (I disabled booting from removable media or CD-ROM).
|
|
| Thanx a lot in advance,
| Andi

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ubuntu-users@lists.ubuntu.com
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