Ubuntu
update-manager package

Locked up during upgrade 10.04 to 12.04

Asked by Colin Lewis

Been running 10.04 happily for 18 months or more. Ran the upgrade to 12.04.
I left it chugging away on the update, and when I returned over an hour later, it had become unresponsive.
Nothing on the screen, no mouse response, no keyboard response (wouldn't even toggle NumLock on and off)
I eventually rebooted using the power switch (ugh!)
Now it puts up the word ubuntu, with five dots scrolling alternately red and white underneath.
Wait a long time (20 mins plus) no change.
Ctl-Alt-Del immediately reboots
F2 shows a terminal screen, but I can't really interpret it, and it doesn't respond to any input.
I tried changing to a PS/2 keyboard instead of USB, no difference.
Hardware is an Ipex Convergence XL desktop.

Clearly something went awry - I hope it's not a hardware incompatibility. My objective is to: get the 12.04 upgrade completed, OR get it back to running 10.04 OR salvage as much as I can from the hard drive and try a fresh install of 12.04. (in that order of preference)
Difficulties with this - Don't have another PC with CD/DVD drive to create a bootable disc, don't know what to do with it if I did, not even sure the PC will boot from DVD and can't seem to get into BIOS setup to check.
I'm in Melbourne Australia.

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N1ck 7h0m4d4k15 (nicktux) said : 		#1

Hello .

Probably something gone wrong with the upgrade. The upgrade from 10.04 to 12.04 is a BIG change.

You can try to login from recovery mode and try to complete the upgrade from there. If you haven't grub menu to select recovery ,then during PC boot , hold down the "shift" key until grub menu showing up.

Select recovery mode and then click on Root. Then give below commands with order

++++++++++++++++++++++++++++
mount -O remount,rw /
apt-get update
apt-get dist-upgrade
++++++++++++++++++++++++++++

wait for the procedure to complete and then reboot to see if fixed.

Thanks

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Colin Lewis (colinjl) said : 		#2

Thanks for the suggestion, but same as before. If I use F2 to see the terminal screen, the last heading is
"Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the start(8) utility, e.g. start S25bluetooth"
and after several lines, the last line is
"* Stopping System V runlevel compatibility [OK]"

If I use Ctl-Alt-Del, a few more lines appear (too quick to read) then it reboots.

Revision history for this message
N1ck 7h0m4d4k15 (nicktux) said : 		#3

Hello ,

then I think you must go to the 3rd option. Copy your important data to an external HDD and reinstall Ubuntu 12.04

You can copy all your data via Live CD /Usb. Boot click "Try Ubuntu" , Open Nautilus file manager and start to copy.
Then reinstall Ubuntu.

Thanks

Revision history for this message
Colin Lewis (colinjl) said : 		#4

Thanks. I guessed I might end up here. I'll see how it goes, and report back.

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