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I want to start the Recovery mode on an Ubuntu-only machine. The problem is that machine seems to skip grub and boot directly into ubuntu (as it is the only OS installed.

How can I boot into the recovery mode (whether it is through GRUB or not)

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up vote 7 down vote accepted

According to this, holding the Shift key while booting should bring up the GRUB menu. If the Shift doesn't work, repeatedly pressing the Esc may work.

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This works, thanks! – Calixte Sep 9 '11 at 13:47

If you enter BIOS (normally F2) first and then exit choosing EXIT WITHOUT SAVING or similar, you will be prompted with the GRUB menu.

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I once, not in the purpose of getting into grub (actually I was measuring the time it takes for Ubuntu to boot), did this and successfully accessed grub menu: Boot up your computer by pressing the power key While it's booting, long press on the power key to turn it off (I am not sure if it is a very safe way to get into grub) Turn it on again with the power key, and... Voila! Here you are at the grub menu. ;) You're welcome!

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