I recently installed Linux on a new computer.
I started up with a boot menu. The options were:
1. linux 2.6.38-10-generic-pae
2. the same but recovery mode
3. previous Linux versions
followed by the two mem tests
I always used the first option.
Earlier today something went wrong (I don't know what) when I shot down the computer. After that Ubuntu would not start anymore. I would get the boot menu, choose the first option and after a few seconds the screen went black and nothing more happened.
When I chose the recovery mode I went into another menu which first option was to continue normal boot process (I can't remember the other options). The arrow keys did not work to choose another options and after a few seconds the boot proces was continued and the same problems occured as described above.
When I chose the 3rd option 4-5 previous ubuntu versions were listed. The first 3 had the same problem as above but the 4th worked.
In the terminal I typed: shutdown -rF now and the computer started up in 2.6.38-10-generic-pae. I have shutdown and then started again and it seems to work again.
The only difference: there is no bootmenu anymore.
Can anyone explain what happened? I realize I do not give a lot of details.
Is there anyway of getting the bootmenu back? In case there is a problem again it is helpful to be able to run an earlier version.