Disabling graphical boot and starting applications early

[Tom H]

On Sun, Dec 9, 2012 at 7:26 PM, Felix Miata <mrmazda at earthlink.net> wrote:
> On 2012-12-09 18:54 (GMT-0500) Tom H composed:
>> Daniel Dalton wrote:
>>>
>>> So do I replace
>>> GRUB_CMDLINE_LINUX_DEFAULT="quiet"
>>> with:
>>> GRUB_CMDLINE_LINUX_DEFAULT="ro root=/dev/sda splash=verbose noplymouth"
>
>
> Exactly? root=/dev/sda will almost never be an appropriate cmdline argument,
> and probably has no business in any GRUB_CMDLINE_LINUX_DEFAULT either.
>
>> No
>> GRUB_CMDLINE_LINUX_DEFAULT="splash=verbose noplymouth"
>> although I'd like to see where these values are documented. An initrd
>> built with initramfs-tools doesn't parse for them and "init --help"
>> doesn't list them.
>
> Note I mentioned the version I use. I haven't seen Tom H or Daniel D mention
> in this thread what they're using. Grub2 is a moving target. Docs can't be
> expected to remain the same for the 5 releases from 10.10 to now.

I've been using grub2 since the alpha release of 9.04 and I've never
seen these things documented. Maybe I didn't look in the right
places...

Anyway, AFAIK, the variables on the "linux" line in "grub.cfg" aren't
grub-related. They're used by the initramfs, init (for example
"init=/sbin -v"), or the kernel (for example "ipv6.disable=1").