On Sun, May 13, 2018 at 11:40 PM Pascal Hambourg <[email protected]> wrote:
> Le 13/05/2018 à 20:26, David Collier a écrit : > > > /dev/sde1:unknown Linux distribution:Linux:linux > > What is /dev/sde1 ? The live USB ? > /dev/sde is a 2TB hard drive formatted NTFS for sharing between linux and windows, I am not sure why it is reported as linux in this case: > > vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv > root@ubuntu:/etc# os-prober > /dev/sdc2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot > Manager:Windows:efi > /dev/sde1:unknown Linux distribution:Linux:linux > grub-probe: error: cannot find a GRUB drive for /dev/sdf1. Check your > device.map. > root@ubuntu:/etc# fdisk -l /dev/sde > Disk /dev/sde: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors > Units: sectors of 1 * 512 = 512 bytes > Sector size (logical/physical): 512 bytes / 4096 bytes > I/O size (minimum/optimal): 4096 bytes / 4096 bytes > Disklabel type: gpt > Disk identifier: B5FAA2AB-CE9B-422C-A0A3-2DD67CF87239 > > Device Start End Sectors Size Type > /dev/sde1 2048 3828889599 3828887552 1.8T Microsoft basic data > /dev/sde2 3828889600 3907028991 78139392 37.3G Linux swap > root@ubuntu:/etc# > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > > > > > grub-probe: error: cannot find a GRUB drive for /dev/sdf1. Check your > > > device.map. > > > > What is /dev/sdf ? > looks like this is the USB stick: vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv root@ubuntu:/etc# fdisk -l /dev/sdf Disk /dev/sdf: 7.4 GiB, 7918845952 bytes, 15466496 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x550f2a26 Device Boot Start End Sectors Size Id Type /dev/sdf1 * 0 3172287 3172288 1.5G 0 Empty /dev/sdf2 3138412 3143147 4736 2.3M ef EFI (FAT-12/16/32) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > root@ubuntu:/# update-grub > > Generating grub configuration file ... > > Warning: Setting GRUB_TIMEOUT to a non-zero value when > GRUB_HIDDEN_TIMEOUT > > is set is no longer supported. > > Found linux image: /boot/vmlinuz-4.13.0-41-generic > > Found initrd image: /boot/initrd.img-4.13.0-41-generic > > Found linux image: /boot/vmlinuz-4.13.0-39-generic > > Found initrd image: /boot/initrd.img-4.13.0-39-generic > > Found linux image: /boot/vmlinuz-4.13.0-38-generic > > Found initrd image: /boot/initrd.img-4.13.0-38-generic > > done > > I do not see the other systems detected by os-prober. > Check the options in /etc/default/grub. > These are the only uncommented lines in /etc/default/grub vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ipv6.disable=1" GRUB_CMDLINE_LINUX="" ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > note the error reported by os-prober. Now there is no grub menu at all > > during boot, the machine boots directly into Ubuntu (was I supposed to > run > > grub-mkconfig at some point)? > > No, update-grub calls grub-mkconfig. > > > (Also, in the command line grub now shows two partitions instead of one, > > but my experiments with chainloading Windows all failed.) > > Can you elaborate ? What I meant to say was that running ls in grub command line mode (which I can't do presently, as the system does not stop at grub menu at boot any more :), it was showing two boot partitions, one on hd0 and one on hd2 IIRC, but I still could not manage to force it to boot from the partition which seemed to be the windows boot partition. before all these exercises grub in the command line mode was showing only one boot partition. thank you, -dc > _______________________________________________ > Help-grub mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/help-grub > _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
