Unable to install Ubuntu 14.04

I've solved my problem! I noticed that my old working ubuntu -- ubuntu
13.1 -- was an amd64 release -- so I intalled ubuntu 5.04 amd64 desktop. I
AVOIDED doing the "Upgrade" that appeared -- I had noticed, in searching
Launchpad, that this would freeze my system (that happened the last time
that I used the update).

Thus, the problem is solved!

[?]

  -- Saul

On Sun, May 3, 2015 at 2:01 PM, Saul Lubkin <
<email address hidden>> wrote:

> New question #266379 on Ubuntu:
> https://answers.launchpad.net/ubuntu/+question/266379
>
> I have an Acer PC. It has an nvidia graphics card. Until recently,
> Ubuntu 14.1 ran well on it. I received an upgrade option to Ubuntu 15.04;
> I took the option.
>
> The result was a system on which I couldn't login.
>
> My important data has been saved to my Dropbox account, and my Google
> Drive account.
>
> So I can retrieve all important infor mation bt doing a fresh installation.
>
> I downloaded the Ubuntu 14.04 .iso image, and burned it to a DVD. I then
> used it to install the 14.04 operating system.
>
> It allows me to login, but then nothing is usable.
>
> Is there any way that I can do a fresh install of some usable supported
> version of version of Ubuntu?
>
> (I have an old Ubuntu 13.1 installation DVD, that does install Ubuntu 13.1
> -- but upgrading to 14.04 produces a similarly unuseable system. The
> Ubuntu 13.1 system does not allow apt-get install opensh-server, and does
> not allow apt-get install nvidia-current)
>
> Help much appreciated.(BTW, 15.04, installed from the DVD, won't allow
> login either).
>
> -- Saul
>
> --
> You received this question notification because you asked the question.
>

Please mark as solved

Hi!

I THOUGHT that my problem was solved; but when I rebooted, the system does allow me to login -- but then hangs.
A possible bit of relevant information:

During the boot process, I receive messages:

Error: /dev/sdd: No medium found
Error: /dev/sdc: No medium found
Error: /dev/sdb: No medium found
Error:: /dev/sde: No medium found

(and the same four lines repeated).
(I actually have two partitions: sda1 and sda5, the latter used for swap)

I setup ssh and openssh-server to allow remote login:

From another computer, (and even from my android cellphone), I can login to the machine, using ssh.

Help greatly appreciated.

  -- Saul

This question was expired because it remained in the 'Open' state without activity for the last 15 days.