[Bug 826163] Re: update-grub seems to ignore /etc/default/grub in 10.04.3

[thread13]

This is to confirm that the problem safely reproduces on a different
"clean" installation of 10.04.3 ( Desktop LTS ), and that the suggested
workaround works for it as well .


** Description changed:

  fresh install of Ubuntu 10.04 LTS (as 10.04.3, i386 32 bit), apt-updated
  to current state ,
  
  PROBLEM:
  can boot after manually changing boot line (press 'e', delete 'quiet splash', add 'i915.modeset=1' as required by my hardware), can not make these settings permanent by editing /etc/default/grub according to (1) and running 'sudo update-grub' : both menu.lst and grub.conf do not seem to be affected by changes, while menu.lst *is* regenerated (with 'ro quiet splash' instead of 'i915.modeset=1') and grub.conf is not .
  
- WORKAROUND: 
+ HOW TO REPRODUCE:
+ 0. [ optional: install new kernel version ]
+ 1. edit /etc/default/grub, say, remove "splash" from the "quiet splash" line ;  
+ 2. run 'sudo update-grub' ; 
+ 3. observe that 'menu.lst' was regenerated, while 'grub.cfg' was not. 
+    if the step zero was executed, then observe that 'menu.lst' has the right kernel entries, but effectively ignores '/etc/default/grub' . 
+ 
+ WORKAROUND:
  edited both menu.lst and grub.conf to add the required incantations, but I'm worried that the next update will revert everything to defaults ; I have attached a sticker to the computer to remind myself what to do if it will stop booting after an update, but I'd prefer to solve this problem in some more reliable way, if possible.
  
  RELATED:
- probably related bugs are: 
+ probably related bugs are:
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/478652
  and
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/470490
  
  refs:
  1. https://help.ubuntu.com/community/Grub2#/etc/default/grub%20%28file%29
  
  P.S. If someone points me to a description of what has happened to good
  ol' menu.lst (now there are /etc/default/grub, /etc/grub.d,
  /boot/grub/*, including menu.lst and grub.conf, and I am not sure I am
  not missing something), then I can debug the problem myself and report
  the result here ; until then, I can only say that the
  GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX lines from
  /etc/default grub are somehow disappearing from the effective boot menu
  .

** Description changed:

  fresh install of Ubuntu 10.04 LTS (as 10.04.3, i386 32 bit), apt-updated
  to current state ,
  
  PROBLEM:
  can boot after manually changing boot line (press 'e', delete 'quiet splash', add 'i915.modeset=1' as required by my hardware), can not make these settings permanent by editing /etc/default/grub according to (1) and running 'sudo update-grub' : both menu.lst and grub.conf do not seem to be affected by changes, while menu.lst *is* regenerated (with 'ro quiet splash' instead of 'i915.modeset=1') and grub.conf is not .
  
- HOW TO REPRODUCE:
- 0. [ optional: install new kernel version ]
- 1. edit /etc/default/grub, say, remove "splash" from the "quiet splash" line ;  
- 2. run 'sudo update-grub' ; 
- 3. observe that 'menu.lst' was regenerated, while 'grub.cfg' was not. 
-    if the step zero was executed, then observe that 'menu.lst' has the right kernel entries, but effectively ignores '/etc/default/grub' . 
- 
  WORKAROUND:
  edited both menu.lst and grub.conf to add the required incantations, but I'm worried that the next update will revert everything to defaults ; I have attached a sticker to the computer to remind myself what to do if it will stop booting after an update, but I'd prefer to solve this problem in some more reliable way, if possible.
+ See also comment #3 ( https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/826163/comments/3 ) for a "full" workaround .  
  
  RELATED:
  probably related bugs are:
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/478652
  and
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/470490
+ 
+ 
+ HOW TO REPRODUCE THE BUG:
+ 0. [ optional: install new kernel version ]
+ 1. edit /etc/default/grub, say, 
+    remove "splash" from the "quiet splash" line ;
+ 2. run 'sudo update-grub' ;
+ 3. observe that 'menu.lst' was regenerated, while 'grub.cfg' was not.
+    if the step zero was executed, then observe that 'menu.lst' has the right kernel entries, but effectively ignores '/etc/default/grub' .
+ 
  
  refs:
  1. https://help.ubuntu.com/community/Grub2#/etc/default/grub%20%28file%29
  
  P.S. If someone points me to a description of what has happened to good
  ol' menu.lst (now there are /etc/default/grub, /etc/grub.d,
  /boot/grub/*, including menu.lst and grub.conf, and I am not sure I am
  not missing something), then I can debug the problem myself and report
  the result here ; until then, I can only say that the
  GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX lines from
  /etc/default grub are somehow disappearing from the effective boot menu
  .

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https://bugs.launchpad.net/bugs/826163

Title:
  update-grub seems to ignore /etc/default/grub in 10.04.3

Status in “grub2” package in Ubuntu:
  New

Bug description:
  fresh install of Ubuntu 10.04 LTS (as 10.04.3, i386 32 bit), apt-
  updated to current state ,

  PROBLEM:
  can boot after manually changing boot line (press 'e', delete 'quiet splash', add 'i915.modeset=1' as required by my hardware), can not make these settings permanent by editing /etc/default/grub according to (1) and running 'sudo update-grub' : both menu.lst and grub.conf do not seem to be affected by changes, while menu.lst *is* regenerated (with 'ro quiet splash' instead of 'i915.modeset=1') and grub.conf is not .

  WORKAROUND:
  edited both menu.lst and grub.conf to add the required incantations, but I'm worried that the next update will revert everything to defaults ; I have attached a sticker to the computer to remind myself what to do if it will stop booting after an update, but I'd prefer to solve this problem in some more reliable way, if possible.
  See also comment #3 ( https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/826163/comments/3 ) for a "full" workaround .  

  RELATED:
  probably related bugs are:
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/478652
  and
  https://bugs.launchpad.net/ubuntu/+source/grub/+bug/470490

  
  HOW TO REPRODUCE THE BUG:
  0. [ optional: install new kernel version ]
  1. edit /etc/default/grub, say, 
     remove "splash" from the "quiet splash" line ;
  2. run 'sudo update-grub' ;
  3. observe that 'menu.lst' was regenerated, while 'grub.cfg' was not.
     if the step zero was executed, then observe that 'menu.lst' has the right kernel entries, but effectively ignores '/etc/default/grub' .

  
  refs:
  1. https://help.ubuntu.com/community/Grub2#/etc/default/grub%20%28file%29

  P.S. If someone points me to a description of what has happened to
  good ol' menu.lst (now there are /etc/default/grub, /etc/grub.d,
  /boot/grub/*, including menu.lst and grub.conf, and I am not sure I am
  not missing something), then I can debug the problem myself and report
  the result here ; until then, I can only say that the
  GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX lines from
  /etc/default grub are somehow disappearing from the effective boot
  menu .

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