Ubuntu

grub update overwrites config

Asked by Kermit

Hello
We have set a grub password (to prevent users using the repair functions) and set the default options to unrestricted in /etc/grub.d/10_linux
Now an upgrade of grub-common has overwritten this file, which made the system unbootable for the user
I could repair via live CD, but how do I prevent this from happening again ?
And is this a bug? In my understanding files in a .d config folder should be update-safe

Version is xenial

Best regards, Kermit

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Manfred Hampl (m-hampl) said : 		#1

As far as I can see from https://launchpadlibrarian.net/494780808/grub2_2.02~beta2-36ubuntu3.27_2.02~beta2-36ubuntu3.28.diff.gz the last update has modified /etc/grub.d/10_linux (via /etc/grub.d/10_linux.in).

How was that update initiated?
The update process should have asked how to handle the modifications to that file (keep the old file, install the new one, display differences, etc.)

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Kermit (kermit42) said : 		#2

According to the user it was asked graphically to install updates and there were no questions

When I reproduced I was asked by the updater, so not sure if this problem is user based.

Anyway I would like to blacklist this file as admin (and maybe later other config files)

Is this possible somehow?

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Manfred Hampl (m-hampl) said : 		#3

I suggest that you put your modifications into a specific file, e.g. /etc/grub.d/11_linux_myorg
Such file will not be overwritten.

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Kermit (kermit42) said : 		#4

Well I added the "--unrestricted " to the menu entry line
Is it possible to move that to another file?

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Manfred Hampl (m-hampl) said : 		#5

Sorry, as far as I know modifying a "standard" entry is not possible by adding a file like 11_linux_myorg. You have to modify the "standard" 10_linux file.

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Launchpad Janitor (janitor) said : 		#6

This question was expired because it remained in the 'Open' state without activity for the last 15 days.