Eu resolvi isso.
A solução é para
- Edite o arquivo /etc/grub.d/40_custom :
#!/bin/sh exec tail -n +3 $0 # 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. menuentry "Windows 8" { insmod ntfs set root='(hd0,1)' ntldr /bootmgr }
- Fazer backup do mbr
dd if=/dev/sda of=/home/ivan/Dropbox/config/portatil/sda.mbr-2016-05-27 count=512
e executargrub-install --recheck /dev/sda