Din ce stiu eu menu.lst de la grub 1 poate fi editat cu un simplu editor pe cand grub.cfg de la grub 2 isi ia setarile din alte fisiere, el fiind generat automat. Parerea mea de pe un live cd sters tot ce tine de grub 1 -2 ce ai instalat si reinstalat grub 2. Ptr adaugare manuala a windosului in grub 2 poti urma pasii: The files in this folder are read during execution of "update-grub" or "update-grub" commands. The contents are imported into /boot/grub/grub.cfg The order of the entries in the grub menu is based on the order of the file names. File named with a starting numeral are run before those beginning with a letter. The order the files are run determines the menu order in grub.cfg. Custom entries can be added to the "40_custom" file or in a newly created file. Any file created must be executable in order to be included in the grub.cfg file during the "update-grub" command. 00_header 05_debian_theme: Set background and text colors, themes 10_hurd Locates Hurd kernels 10_linux Locates Linux kernels based on results of the "lsb_release" command. 10_lupin Locates Linux kernels in Wubi installs within Windows, among other things. 20_memtest86+: If the file /boot/memtest86+.bin exists, it is included as a menu item. 30_os-prober: Searches for Linux and OS's on other partitions and includes them in the menu. 40_custom: A template for adding custom menu entries which will be inserted into grub.cfg upon execution of the "update-grub" command. This and any other custom file must be made executable to allow importation into grub.cfg. Acum nu imi pot da seama exact care grub il ai instalat.Dar poti incerca cu reinstal ul dar sa fii atent cand instalezi bootloaderul(grub ul) sa fie pe mbs ul hdd ului (la instalare dai calea sda , fara numar ) Mai multe info poti afla aici Grub 2 Basics - Ubuntu Forums Mai e posibil ca tu sa faci editare la menu.lst folosit de grub 1 si sistemul sa foloseasca grub 2.