On Wed, Oct 07, 2009 at 07:28:00PM -0700, Jonathan Ryshpan wrote: > On Wed, 2009-10-07 at 15:09 -0700, Jonathan Ryshpan wrote: > Where are they documented? > > In particular: > > * What does the quiet option do? > > * How can I get the system to display messages during shutdown? > > rhgb suppresses messages during bootup. Is there a similar > > option for shutdown? If so what is it? > > * In my grub.conf, timeout=5. Nevertheless the grub starts the > > boot process after 3 seconds. What am I missing? > > On Wed, 2009-10-07 at 19:00 -0500, Mikkel wrote: > > ... > > You may want to run "pinfo grub" - it will open the Grub info file. > > If you do not have pinfo installed, you can run "info grub". > > On Wed, 2009-10-07 at 22:28 +0000, g wrote: > > ... > > http://www.gnu.org/software/grub/manual/ > > I have looked at both of these places carefully. They are both versions > of the same document, which answers none of my questions. More info is > solicited. Do look at /proc/cmdline and map what you see in the grub file associated with a kernel boot line. There are way too many layers in a boot loader. In most cases linux boots via a chain loader with each layer having its own options and flags. `stage1' `stage2' `e2fs_stage1_5' `fat_stage1_5' `ffs_stage1_5' `jfs_stage1_5' `minix_stage1_5' `reiserfs_stage1_5' `vstafs_stage1_5' `xfs_stage1_5' `stage2_eltorito' `nbgrub' `pxegrub' This bit is important... from the "info grub" pages. It (grub) also has a user interface and a "command line". These commands can only be used in the menu: * Menu: * default:: Set the default entry * fallback:: Set the fallback entry * hiddenmenu:: Hide the menu interface * timeout:: Set the timeout * title:: Start a menu entry etc... Not limited to the menu: * bootp:: Initialize a network device via BOOTP * color:: Color the menu interface * device:: Specify a file as a drive * dhcp:: Initialize a network device via DHCP * hide:: Hide a partition * ifconfig:: Configure a network device manually * pager:: Change the state of the internal pager * partnew:: Make a primary partition * parttype:: Change the type of a partition * password:: Set a password for the menu interface * rarp:: Initialize a network device via RARP * serial:: Set up a serial device * setkey:: Configure the key map * splashimage:: Use a splash image * terminal:: Choose a terminal * terminfo:: Define escape sequences for a terminal * tftpserver:: Specify a TFTP server * unhide:: Unhide a partition ...... Some flags apply to individual commands... see "terminal" -- Command: terminal [`--dumb'] [`--no-echo'] [`--no-edit'] [`--timeout=secs'] [`--lines=lines'] [`--silent'] [`console'] [`serial'] [`hercules'] And most importantly most of the "interesting" stuff is not done by grub at all. For example once the kernel is loaded it is passed a set of flags and each kernel has a list slightly different from the last kernel. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
