Clean install of ubuntu 12.04 from CD gives unreadable flashing dialogue box

Can you run the 'Try Ubunto' option when booting from the live-DVD and is this OK?

Be sure to have a perfect Ubuntu live install cd made from a md5sum verified iso image...
Then you can be sure to have a perfect cd: booting from the cd and then selecting verify media ...

Dear Barry, thanks for response. Tower was working fine with version 11.10.
Opted for Upgrade to 12.04 via Package Manager and chaos ever since! Have
tried the following. . .
Clear install of 11.10 from previous successful CD, gives "Installer has
encountered an unrecoverable error, desktop will now launch to. . ."
Tried reinstall with Try Unto option, installs OK but doesn't have any
"Shutdown/Quit" choice in Topmenu & won't mount HDD 2 (previous OK) because
of presence of ext/6 (You don't have permissions).
Tried Try Ubuntu options with new D/Ls of both 11 & 12, plus deleting all
partitions on both hdds, still returns ". . recoverable error "
Have run Windows Ultimate Boot CD to check drives not buggered and all
seems in order.
Thanks for continued support but how do I reformat drives in Try Ubuntu
please?
All help welcome! RH
On 9 May 2012 10:10, "Barry Drake" <email address hidden>
wrote:

> Your question #196602 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/196602
>
> Status: Open => Needs information
>
> Barry Drake requested more information:
> Can you run the 'Try Ubunto' option when booting from the live-DVD and
> is this OK?
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+question/196602
>
> You received this question notification because you asked the question.
>

Dear Marco, thanks for response. Have replied to Jeet with following in
response to his reply! Don't want three of us chasing our tails. Maybe my
prob is unified your end
"Tower was working fine with version 11.10. Opted for Upgrade to 12.04 via
Package Manager and chaos ever since! Have tried the following. . . Clear
install of 11.10 from previous successful CD, gives "Installer has
encountered an unrecoverable error, desktop will now launch to. . ."
Tried reinstall with Try Unto option, installs OK but doesn't have any
"Shutdown/Quit" choice in Topmenu & won't mount HDD 2 (previous OK) because
of presence of ext/6 (You don't have permissions).
Tried Try Ubuntu options with new D/Ls of both 11 & 12, plus deleting all
partitions on both hdds, still returns ". . unrecoverable error "
Have run Windows Ultimate Boot CD to check drives not buggered and all
seems in order. Thanks for continued support but how do I reformat drives
in Try Ubuntu please? All help welcome! RH
On 9 May 2012 15:50, "marcobra (Marco Braida)" <
<email address hidden>> wrote:

> Your question #196602 on ubiquity in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/ubiquity/+question/196602
>
> Status: Needs information => Answered
>
> marcobra (Marco Braida) proposed the following answer:
> Be sure to have a perfect Ubuntu live install cd made from a md5sum
> verified iso image...
> Then you can be sure to have a perfect cd: booting from the cd and then
> selecting verify media ...
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
>
> https://answers.launchpad.net/ubuntu/+source/ubiquity/+question/196602/+confirm?answer_id=1
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+source/ubiquity/+question/196602
>
> You received this question notification because you asked the question.
>

To format a drive, you use gparted which is on the live-CD. If you want accurate information on the state of your hard drive, use the Disk Utility and run the SMART tests you will find available. Windows doesn't carry out SMART tests and they show problems you need to know about. Also run memtest86 - you get this in the grub optiont. If you boot from the DVD, hold left shift while booting to get the grub screen.

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