[SOLVED] Fail to start X

satimis · 05-06-2012, 10:05 AM

Host - ubuntu 11.04 desktop
VM - ubuntu 10.04 desktop
Virtualizer Oracle VirtualBox

After upgrade the VM to 12.04 LTS, on reboot only a black sreen was displayed.

Drop to root shell on restart

# startx /usr/bin/gnome-session
Fatal server error:
Could not create lock file in /tmp/.tX0-lock
...
ddxSikGiveUp: Closing log

# ls -l /tmp

Code:

drwx----- 2 root root 4096 ....

# chmod 1777 /tmp

Code:

chmod: changing permission of '/tmp': Read-only file system

Pls help. TIA

B.R.
satimis

Snark1994 · 05-06-2012, 11:31 AM

What's in your fstab?

Mine has:

Code:

tmpfs        /tmp         tmpfs    nodev,nosuid     0     0

/tmp definitely shouldn't be read-only, AFAIK...

satimis · 05-06-2012, 11:52 AM

Quote:

Originally Posted by Snark1994

What's in your fstab?

Mine has:

Code:

tmpfs        /tmp         tmpfs    nodev,nosuid     0     0

No such line

$ cat /etc/fstab

Code:

proc            /proc           proc    nodev,noexec,nosuid 0       0
# / was on /dev/sda1 during installation
UUID=0a866ab3-939e-4b8b-86a4-7f0991064d6f /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=c38e28d1-dc59-4c71-a0cb-e248e3e4e907 none            swap    sw              0       0

Quote:

/tmp definitely shouldn't be read-only, AFAIK...

What can I do"?

TIA

B.R.
satimis

TobiSGD · 05-06-2012, 11:55 AM

File-systems become usually read only if there is a problem with the file-system. Boot from a live-iso and check the file-system.

satimis · 05-06-2012, 12:01 PM

Quote:

Originally Posted by TobiSGD

File-systems become usually read only if there is a problem with the file-system. Boot from a live-iso and check the file-system.

Thanks for your advice.

I upgraded the VM to ubuntu 12.04 on Internet using "update-manager"

B.R.
satimis

TobiSGD · 05-06-2012, 12:08 PM

Quote:

Originally Posted by satimis

I upgraded the VM to ubuntu 12.04 on Internet using "update-manager"

That shouldn't prevent you to use a live-cd for maintenance.

satimis · 05-06-2012, 07:52 PM

Quote:

Originally Posted by TobiSGD

That shouldn't prevent you to use a live-cd for maintenance.

OK. Thanks

I'm now downloading 4 iso
- ubuntu-12.04-desktop-amd64.iso
- ubuntu-12.04-desktop-i386.iso
- ubuntu-12.04-server-amd64.iso
- ubuntu-12.04-server-i386.iso

I have 2 virtual boxes running KVM and VirtualBox as virtualizer respectively. On these boxes ubuntu 9.04/10.04/11.04 desktop and server, 32/64bit, are running. For such a reason I prefer to upgrade them direct on Internet avoiding to download several ISO.

I'll come back if encounter further problem. Thanks

Meanwhile I have problem on upgrading ubuntu 10.04 to 12.04, 64bit desktop, direct on Internet. I'll start another thread.

B.R.
satimis

TobiSGD · 05-06-2012, 08:03 PM

To make that clear, I have not said you should upgrade the OS using live-isos. I said you should check the file-system on the disk that is mounting read-only. You need exactly one iso for that, it doesn't matter which one, it doesn't even have to be Ubuntu.

satimis · 05-06-2012, 08:10 PM

Quote:

Originally Posted by TobiSGD

To make that clear, I have not said you should upgrade the OS using live-isos. I said you should check the file-system on the disk that is mounting read-only. You need exactly one iso for that, it doesn't matter which one, it doesn't even have to be Ubuntu.

Your advice noted. Thanks

I haven't had any ISO/live CD available here.

satimis

Snark1994 · 05-07-2012, 05:05 AM

Quote:

Originally Posted by satimis

I haven't had any ISO/live CD available here.

You just said you were downloading them! And you must have used one to install, anyway...

satimis · 05-07-2012, 10:48 AM

Hi folks,

Lot of thanks for your assistance. Finally I discovered it is the problem of nVidia graphic card which is a known issue having many threads on Internet. The VM is working except Gnome can't start. I can remote connect this VM on host terminal running its program except unable to start "gnome-session &"

I found following website;
Installing nVidia drivers from website
http://askubuntu.com/questions/35273...s-from-website

Having performed following steps;

Download "NVIDIA-Linux-x86_64-302.07.run" on host and ran "scp" copying it to the VM /home/user
remote access the VM on host terminal running "ssh -X user@192.168.0.212"

$ sudo nano /etc/modprobe.d/blacklist.conf
adding following 2 lines at the end of the file.
blacklist nouveau
blacklist nvidiafb

$ sudo depmod -a (no complaint)
$ sudo update-initramfs -u

Code:

update-initramfs: Generating /boot/initrd.img-3.0.0-19-generic

$ sudo sh NVIDIA-Linux-x86_64-302.07.run

Code:

WARNING: You do not appear to have an NVIDIA GPU supported by the 302.07     
           NVIDIA Linux graphics driver installed in this system.  For further 
           details, please see the appendix SUPPORTED NVIDIA GRAPHICS CHIPS in 
           the README available on the Linux driver download page at           
           www.nvidia.com.                                                     
                                                                               
                                       OK

I was stuck here without a solution.

Edit:
During booting the VM on text scrolling it displayed

Code:

Starting load fallback graphics devices [fail](in red color)

B.R.
satimis

TobiSGD · 05-07-2012, 10:53 AM

Why do you try to install drivers for a physical video card into a virtual machine with virtual video card?

satimis · 05-10-2012, 11:26 AM

Hi all,

Problem solved after running;
$ do-release-upgrade

Gnome can be started.

$ lsb_release -a

Code:

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 12.04 LTS
Release:        12.04
Codename:       precise

The Codename is "precise"?

B.R.
satimis