Ubuntu 12.04 LTS: Grub Menu Missing

[noloader]

Hi All,

This is a near duplicate of the closed Grub Menu Missing (http://ubuntuforums.org/showthread.php?t=1457210), so I have to spin up a new thread. Unlike the closed thread, I have multiple OSes and the menu is still missing. At boot time, all I get is a purple screen until login.

The installation has both Ubuntu 12.04 and Fedora 17. I have not [yet] added x64 flavors of Ubuntu and Fedora, the Windows OSes (XP, Vista, and 7), nor the BSD OSes (Net and Free).

Ubuntu is managing GRUB from the MBR (installed on /dev/sda). Fedora had its boot loader installed on its partition.

I've re-generated the grub.cfg:


$ sudo apt-get clean
$ sudo apt-get autoclean
$ sudo apt-get autoremove
...

$ sudo update-grub2
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.2.0-35-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-35-generic-pae
Found linux image: /boot/vmlinuz-3.2.0-29-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-29-generic-pae
Found memtest86+ image: /boot/memtest86+.bin
doneI've also re-installed grub to the MBR:


$ sudo grub-install /dev/sda
Installation finished. No error reported.In case anyone needs it (the FAT16 partition is for MS gear):


$ sudo fdisk -l /dev/sda

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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
Disk identifier: 0x0002b33d

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 63487 30720 6 FAT16
/dev/sda2 65534 976771071 488352769 5 Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5 65536 50063359 24998912 83 Linux
/dev/sda6 50065408 100063231 24998912 83 Linux
/dev/sda7 100065280 150063103 24998912 83 Linux
/dev/sda8 150065152 200062975 24998912 83 Linux
/dev/sda9 200065024 250062847 24998912 83 Linux
/dev/sda10 250064896 300062719 24998912 83 Linux
/dev/sda11 968773632 976771071 3998720 82 Linux swap / SolarisAny ideas?

[mcduck]

Based on the update-grub output, it's not detecting any other operating systems so that would be why it hasn't set the Grub menu to visible.

You'll probably have to add the entry for your Fedora install manually, and edit the /etc/default/grub file to set the menu to visible.

[noloader]

Based on the update-grub output, it's not detecting any other operating systems so that would be why it hasn't set the Grub menu to visible.

You'll probably have to add the entry for your Fedora install manually, and edit the /etc/default/grub file to set the menu to visible.
Forgive my ignorance, but what are these two (duplicate) entries:


Found linux image: /boot/vmlinuz-3.2.0-29-generic-pae
Found initrd image: /boot/initrd.img-3.2.0-29-generic-paeIs that the same OS? (There's only two on this machine - Ubuntu and Fedora).

Jeff

[oldfred]

Just to see where everything is at post link to BootInfo.

Post the link to the BootInfo report that this creates. Is part of Boot-Repair:
https://help.ubuntu.com/community/Boot-Info
Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
https://help.ubuntu.com/community/Boot-Repair
You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration and diagnose advanced problems.
Install in Ubuntu liveCD or USB or Full RepairCD with Boot-Repair (for newer computers)
http://sourceforge.net/p/boot-repair/home/Home/
https://help.ubuntu.com/community/UbuntuSecureRemix