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I'm showing the problem in images. What I want to access in 12.04(.1) (I'm using USB flash disk as the media, CD/DVD is OK): the desired menu

How it should start: good start

How it starts now: wrong start

This something is shown in the bottom left side of the monitor.

There is no change if I press some keys, I can't access that menu. Just the ESC displays a dialog window, whithout any text, and two buttons. Non of them displays that menu.

If I press Shift, it asks two questions, but non of them shows that menu.

Used images: ubuntu-12.04.1-desktop-i386.iso and ubuntu-12.04.1-desktop-amd64.iso (torrent source) - used media: USB pendrive.

How can I access that menu?

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closed as too localized by Seth, Amith KK, Eliah Kagan, hhlp, desgua Feb 11 '13 at 0:29

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Did you check the hash sums? –  green7 Sep 4 '12 at 11:28
no, I didn't, it was downloaded with torrent, it checks. Otherwise, it has started in several computers, where no text menu required, and I have installed from it too. Isn't it a bug?! –  B. Roland Sep 5 '12 at 9:31
It might be the case that your monitor is old and doesn't support colors while booting. –  green7 Sep 5 '12 at 11:42
I think the torrent is more controlable, than a normal HTTP download; also there is garantee that the image is checked, I don't need to use the sums. (BTW, what was worked - it was downloaded by torrent too, so torrent is ok) –  B. Roland Sep 6 '12 at 8:49
@NlightNFotis Canonical provides official Ubuntu torrents, also accessible from their website. It's an excellent way to get Ubuntu; bittorrent automatically detects and fixes corruption. (See the "alternative downloads" page.) That this was obtained as a torrent is almost certainly irrelevant to the problem; HTTP downloads are much more likely to be bad. BRloand: Nonetheless, please check the ISO's MD5SUM, just in case. Please also check the Ubuntu USB with this method. –  Eliah Kagan Feb 9 '13 at 23:02

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