Problem updating from version10.10

Maybe you don´t have free space available on Ubuntu partition.Type

df -h

and post output here

Hi zavacet.
Info below as requested. Am using a 500 gb hard disk with only Ubuntu on it. Hope this helps.

peter@peter-desktop:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda7 6.3G 3.6G 2.4G 60% /
none 1.6G 584K 1.6G 1% /dev
none 1.6G 200K 1.6G 1% /dev/shm
none 1.6G 96K 1.6G 1% /var/run
none 1.6G 0 1.6G 0% /var/lock
/dev/sda1 73M 44M 26M 63% /boot
/dev/sda6 449G 2.0G 424G 1% /home
peter@peter-desktop:~$

Peter, 11.04 now defaults to the unity desktop, however if there is a problem intialising your video card's 3D support, it will drop back to the old desktop.

What video card are you running? You can find out using the "lspci" command from a terminal. You may be using a proprietary video card which needs the drivers reinstalled.

Hi mycae, I am using a GiGabyte motherboard GA-880GMA-UD2H with its own onboard video (no dedicated video card). There was no problem running 11.04 from the live CD. The problem is somehow linked to an earlier update which the system thinks did not update satisfactorily (though I had no problems with 10.10 at all). I appear to have had only a partial upgrade. But if I go back into download manger there is nothing left to update. Hence my question Is the solution to reinstall from the live CD. However I am concerned that if i do I may lose my existing data files. The info you requested is pasted below:

peter@peter-desktop:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS880 Host Bridge
00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (int gfx)
00:09.0 PCI bridge: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 4)
00:0a.0 PCI bridge: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 5)
00:11.0 SATA controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (rev 40)
00:12.0 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:12.2 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:13.2 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 41)
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
00:14.3 ISA bridge: ATI Technologies Inc SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 40)
00:14.5 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI2 Controller
00:15.0 PCI bridge: ATI Technologies Inc Device 43a0
00:15.1 PCI bridge: ATI Technologies Inc Device 43a1
00:16.0 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:16.2 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:05.0 VGA compatible controller: ATI Technologies Inc RS880 [Radeon HD 4250]
01:05.1 Audio device: ATI Technologies Inc RS880 Audio Device [Radeon HD 4200]
02:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
04:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
05:00.0 IDE interface: JMicron Technology Corp. JMB368 IDE controller
peter@peter-desktop:~$

Try, installing the "fglrx-installer" package; this will install the proprietary ATI drivers (fglrx), rather than relying on the open source drivers.

At this point I have to own up to not having an ATI card, so your mileage may vary.

Hi mycae, appologies for the delayed response. Have established the problem is nothing to do with my hardware or drivers. Had a spare hard drive so I installed version 11.04 from the live CD, this works perfectly.

The problem is therefore in update manager. Before upgrading to 11.04 from 10.10 there were update packages for 10.10 available. iIactivated the update for these and as far as I could tell update manager completed these. Then I pressed the upgrade button and at the end of the upgrade the system said cannot carry out upgrade as previous update failed to complete. System then carried out only a partial upgrade and hence got itself completely screwed up.

Upgrade manager needs looking at. It was able to identify it didn't have all the previous updates completed yet it still offered a partial upgrade. Surely if the system does not have all the requisite updates in place to complete a full upgrade to the later version it should not offer the partial upgrade. Instead it should highlight the missing or failed update package and prevent upgrading until the failed update is corrected.

Will report this as a possible bug. but thanks for your help with this matter