[Bug 1613260] Re: update-grub (grub-mkconfig) includes all kernels in boot, regardless whether version is in /lib/modules

[Phillip Susi]

It is entirely possible to build a kernel without modules and it will
run just fine without anything in /lib/modules, so this change is not
appropriate.


** Changed in: grub2 (Ubuntu)
       Status: New => Won't Fix

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Title:
  update-grub (grub-mkconfig) includes all kernels in boot, regardless
  whether version is in /lib/modules

Status in grub2 package in Ubuntu:
  Won't Fix

Bug description:
  All kernels/initrds in /boot are included, also if they would never
  work. Below is a patch that fixes this.

  1. Ubuntu 16.04.1 LTS (but it has always been like this)
  2. grub-common 2.02~beta2-36ubuntu3.2
  3. Only the kernels/initrds that have a version that is installed are listed on grub-mkconfig
  4. All kernels/initrds in /boot are enumerated

  
  --- 10_linux    2016-08-14 11:19:24.037604092 +0700
  +++ /etc/grub.d/10_linux        2016-08-14 18:13:53.714595280 +0700
  @@ -289,6 +289,12 @@
     rel_dirname=`make_system_path_relative_to_its_root $dirname`
     version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
     alt_version=`echo $version | sed -e "s,\.old$,,g"`
  +  ## Only if version is in /lib/modules
  +       if [ "x$(echo /lib/modules/* |grep $version)" = "x" ]
  +  then
  +    list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
  +    continue
  +  fi
     linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
   
     initrd=

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