Hi,<br><br>Yesterday, a friend of mine proceeded with the Dist Upgrade to 12.04 process within the Update Manager of his Ubuntu 11.10 (64bit) system that I installed for him previously.  (He did so before consulting me beforehand.  Had he done so, I would have advised him to do the usual things before an upgrade, like: backup your system, etc; and I would have offered to do this with him together, because I had just done my upgrade recently).<br>
<br>Well, everything was going well, until he got to the 4th point in the Upgrade Checklist (i.e. he saw 3 ticks in the checklist):<br>- Preparing to upgrade<br>- Setting new software channels<br>- Getting new packages<br>
- Installing the upgrades<br>- ...<br><br>Later he told me that his PC seemed to have stuck at this point for a long time, no progress, PC seemed frozen.  So he proceeded with the one option that many of us tend to do - pressed the RESET button.  While I usually wouldn&#39;t do this myself, I can understand his rationale for doing so - aborting the upgrade so that he could get back to where he was.  Instead, when his PC (there is no dual-boot in this machine - just pure Ubuntu) rebooted, after going pass the usual BIOS/Video card splash screen, followed by a quick splash of the Ubuntu logo, he got a blank screen.  Not even the usual Ubuntu boot option list was displayed - just a black screen (with a tiny top bit coloured ubuntu purple).<br>
<br>Subsequent rebooting attempts (powering off &amp; on) got the same outcome.<br><br>** A quick note about the &quot;computer freeze up&quot; scenario during the upgrade before:  From my own recent experience, actually the upgrade did not &quot;freeze&quot;, it just sit there waiting for a user response.  And the only way you can find this out is to expand the &quot;Terminal&quot; window within the Upgrade Wizard/Panel - which would show a message describing the issue at hand, and the user suppose to enter the relevant command before the whole install process would continue.  @Ubuntu: How on earth a newbie would have known what to do in this scenario?  More likely they would deem the process &#39;frozen&#39; and did the next logical thing - reboot!<br>
<br>I had used a Live CD to boot the PC up and confirmed that all his data (/home) is in a separate partition, so a clean install of 12.04 will not loose his data completely.  However, that would mean I have to spend lots more time re-installing all his extra programs, installing codecs, configuring his scanner, etc (that I&#39;d spent many hours/days fine-tuning in the previous 11.10 install).<br>
<br>So my question to the LUV&#39;ers out there, is there a way I can do to get back to his 11.10 version?  Any tips will help as I have not done such rescue before. <br><br>BTW, when I boot up an Ubuntu 12.04 amd64 Desktop Live CD on that PC, I didn&#39;t see a &quot;Rescue mode&quot; option.  Should that be in the Alternate CD, or previous version of Ubuntu?<br>
<br>This posting is meant not just to seek help as mentioned above, but also to warn those who are about to do an upgrade to 12.04 about that particular &quot;Terminal&quot; window trick - to avoid any unnecessary rebooting in the middle of an upgrade process.<br>
<br><br>Cheers,<br>Wen<br><br> <br>