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Well, actually the module part (depmod et al.) is done in rc.sysinit, rc.local
is run at the end (S99local) and the daemons/services are run from the scripts
in rc[runlevel].d.
As of initrd, the description in the kernel tree (Documentation/initrd.txt)
states:
When using initrd, the system boots as follows:
1) the boot loader loads the kernel and the initial RAM disk
2) the kernel converts initrd into a "normal" RAM disk and
frees the memory used by initrd
3) initrd is mounted read-write as root
4) /linuxrc is executed (this can be any valid executable, including
shell scripts; it is run with uid 0 and can do basically everything
init can do)
5) when linuxrc terminates, the "real" root file system is mounted
6) if a directory /initrd exists, the initrd is moved there
otherwise, initrd is unmounted
7) the usual boot sequence (e.g. invocation of /sbin/init) is performed
on the root file system
Michael
On Tue, 29 Aug 2000, Nitebirdz wrote:
>
> I'd really appreciate if you guys can help me clarify the initialization
> process in Red Hat Linux, since I'd like to start "studying" the scripts
> to learn something along the way. Here is the way I see it:
>
>
>
> BIOS --> MBR (LILO) --> (initrd) --> kernel --> init --> daemons/services
> | |
> | |
> conf.modules |
> | |
> | |
> /lib/modules/* |
> |
> inittab
> |
> |
> /etc/rc.d/rc
> |
> |
> /etc/rc.d/rc.local
> |
> |
> /etc/rc.d/rc.sysinit
> |
> |
> /etc/rc.d/rcX.d
>
>
> Is there anything incorrect here? Anything that will change with the next
> release of Red Hat (Red Hat 7.0)? By the way, could someone clarify when
> the initrd is actually run (that's why I typed it between
> parenthesis)? Thanks.
_______________________________________
Michael Redinger
Computer Centre University of Innsbruck
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