cannot find /etc/default/grub to steer grub-mkconfig - #2

[k2011gen]

After my earlier message pasted below I created a grub file under 
/usr/local/etc/default/grub with only this in it

GRUB_TIMEOUT="-1"
GRUB_DISABLE_LINUX_UUID="true"

I presume perhaps erroneously that the above statement is the way to get kernel 
arguments in the form of root=/dev/sdx


The timout had effect in the grub.cfg file next made by grub-mkconfig and I 
changed it several times to be sure. The second line however seems to have no 
effect, the kernel arguments are still root=UUID...


device.map shows   (hd0) /dev/sda
fstab also deals in terms of /dev/sdx

Come to think of it, maybe a peek at the fstab files would be one way for grub 
to sort out which partitions are to be booted with /dev/sdx arguments leaving 
UUID for others.   

And unless the above defaults file is missing as a result of some mishap on my 
installation then the fact that it needs to be created should be documented 
together with syntax rules etc.


 


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I installed grub-1.98 from tarball and I can at least do a commanded boot or 
point to a usable 'configfile'. This is enough for me so I'm committing to 
grub2.

While trying to set some defaults for exercises with the automated menu writing 
via grub-mkconfig I find no trace on my system of any /etc/default/grub file 
where such defaults would be set (1.98 installed everything under /usr/local).

One thing I'd want to set in that default file or in /boot/grub/grub.cfg is 
GRUB_DISABLE_LINUX_UUID=true. I edited grub-mkconfig like so

  GRUB_SERIAL_COMMAND \
  GRUB_DISABLE_LINUX_UUID=true \
  GRUB_DISABLE_LINUX_RECOVERY \

but the file produced is still uuID based (which I can't use due to frequent dd 
mirroring).  Do I have to 'create' this default file, where can I find an 
example for syntax, and what would th e syntax be for a direct menu file edit? 

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