bancaldo™

questo il mio disco:

andiamo a leggere il grub.cfg

sudo gedit /boot/grub/grub.cfg

risulta:

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default=”0″
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,7)
search –no-floppy –fs-uuid –set f22fb66e-04fc-4407-a00d-82eba9c80555
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640×480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don’t
# understand terminal_output
terminal gfxterm
fi
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry “Ubuntu, Linux 2.6.31-14-generic” {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,7)
search –no-floppy –fs-uuid –set f22fb66e-04fc-4407-a00d-82eba9c80555
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=f22fb66e-04fc-4407-a00d-82eba9c80555 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry “Ubuntu, Linux 2.6.31-14-generic (recovery mode)” {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,7)
search –no-floppy –fs-uuid –set f22fb66e-04fc-4407-a00d-82eba9c80555
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=f22fb66e-04fc-4407-a00d-82eba9c80555 ro single
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry “Ubuntu, Linux 2.6.31-11-generic” {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,7)
search –no-floppy –fs-uuid –set f22fb66e-04fc-4407-a00d-82eba9c80555
linux /boot/vmlinuz-2.6.31-11-generic root=UUID=f22fb66e-04fc-4407-a00d-82eba9c80555 ro quiet splash
initrd /boot/initrd.img-2.6.31-11-generic
}
menuentry “Ubuntu, Linux 2.6.31-11-generic (recovery mode)” {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,7)
search –no-floppy –fs-uuid –set f22fb66e-04fc-4407-a00d-82eba9c80555
linux /boot/vmlinuz-2.6.31-11-generic root=UUID=f22fb66e-04fc-4407-a00d-82eba9c80555 ro single
initrd /boot/initrd.img-2.6.31-11-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry “Memory test (memtest86+)” {
linux16 /boot/memtest86+.bin
}
menuentry “Memory test (memtest86+, serial console 115200)” {
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry “Microsoft Windows XP Professional (on /dev/sda1)” {
insmod ntfs
set root=(hd0,1)
search –no-floppy –fs-uuid –set 242854b228548528
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the ‘exec tail’ line above.
### END /etc/grub.d/40_custom ###

la parte che interessa l’aggiunta di ulteriori SO, è:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry “Microsoft Windows XP Professional (on /dev/sda1)” {
insmod ntfs
set root=(hd0,1)
search –no-floppy –fs-uuid –set 242854b228548528
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

diversamente dal vecchio GRUB, il conteggio dell’HD, comincia da 0, mentre il conteggio delle partizioni, comincia da 1.
infatti XP che è sulla prima partizione del primo disco, risulta come:
set root=(hd0,1)