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I have various ubuntu versions on different partitions

  • 14.04 on dev/sda1

  • 16.04 on dev/sda6

  • and so on.

They all used to appear in the boot list when starting the computer, but suddenly one dev/sda* is no more in the list and so I have no way to work with this particular machine. Any suggestions? Thanks!

Zanna
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pacos
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    Have you run sudo update-grub ? – oldfred Dec 11 '16 at 00:22
  • It worked!!! Thanks for lending me your glasses....... – pacos Dec 13 '16 at 14:39
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    The issue with multiple installs is that one controls booting but will not have updated entry to second/third/etc install until you update it and go back to first and run updates. You can boot a link file to newest kernel and avoid a lot of the sequence of updating grub issues. http://askubuntu.com/questions/848119/how-to-update-grub-on-a-dual-boot-machine/848614#848614 and https://help.ubuntu.com/community/MaintenanceFreeCustomGrub2Screen – oldfred Dec 13 '16 at 14:47

1 Answers1

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You could make your own grub entry if you know where the kernel, etc is. Basically edit /etc/grub.d/40_custom by copying another section and specify the different kernel/file locations, then run 'update-grub2', using this link for reference: https://help.ubuntu.com/community/Grub2/Setup

Kyle H
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