Hi grub is supposed to manage logical volumes. I've installed an OS with /boot on a regular logical volume and /, /usr and /home on a crypted logical volume. To be more accurate, I first had /boot on a standard partition (/dev/sdb2) and after that I overwrote /dev/sdb2 by a LVM and reinstalled grub, pointing --boot-directory on the logical volume.
running os-prober regularly finds the two systems installed on my PC, but there are no menuentries in my grub.cfg file. What can I do to have grub-mkconfig generate a correct grub.cfg file ? remi@remi-Vostro-3550:~$ sudo os-prober /dev/sda6:Ubuntu 12.04.4 LTS (12.04):Ubuntu:linux /dev/mapper/lvm-root:Ubuntu 14.04 LTS (14.04):Ubuntu1:linux remi@remi-Vostro-3550:~$ sudo mount /dev/mapper/mvg-boot /boot remi@remi-Vostro-3550:~$ sudo mount /dev/sdb1 /boot/grub remi@remi-Vostro-3550:~$ sudo update-grub Création du fichier de configuration GRUB… Ubuntu 12.04.4 LTS (12.04) trouvé sur /dev/sda6 Ubuntu 14.04 LTS (14.04) trouvé sur /dev/mapper/lvm-root fait remi@remi-Vostro-3550:~$ cat /boot/grub/grub.cfg # # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ...... ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/30_uefi-firmware ### ### END /etc/grub.d/30_uefi-firmware ### ..... Thanks in advance for your help Arbiel
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