I'm running ubuntu 14.04 on an EC2.
After running apt-get upgrade
, I'm prompted with a screen that asks me to reinstall GRUB boot loader
The GRUB boot loader was previously installed to a disk that is no longer present, or whose unique identifier has changed for some reason. It is important to make sure that the installed GRUB core image stays in sync with GRUB modules and grub.cfg. Please check again to make sure that GRUB is written to the appropriate boot devices.
How do I know which device should I select ?
What if I have mounted on my machine some additional EBS, should I select them as well ?
Can I avoid this prompt, during the upgrade or supply some defaults to the command ?
The following prompt is
A new version of /boot/grub/menu.lst is available, but the version installed currently has been locally modified.
- install the package maintainer's version
- keep the local version currently installed
- show the differences between the versions
- show a side-by-side difference between the versions
- show a 3-way difference between available versions
- do a 3-way merge between available versions (experimental)
- start a new shell to examine the situation
The same questions here:
How do I know which one should I select ?
Can I avoid this prompt, during the upgrade or supply some defaults to the command ?