某妖博客

仅适合以下情况

sudo update-grub后显示：
Found linux image: /boot/vmlinuz-2.6.39-020639rc1-generic
Found initrd image: /boot/initrd.img-2.6.39-020639rc1-generic
Found memtest86+ image: /boot/memtest86+.bin
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
mapdevfs: error while loading shared libraries: libdebian-installer.so.4: cannot open shared object file: No such file or directory
done

解决办法：

sudo apt-get install --reinstall libdebian-installer4

sudo os-prober

sudo update-grub