From: Steven Wong (steven.wong_at_oracle.com)
Date: Mon Jan 17 2005 - 21:32:31 CET
Message-ID: <41EC20DF.2070600@oracle.com> Date: Mon, 17 Jan 2005 12:32:31 -0800 From: Steven Wong <steven.wong@oracle.com> Subject: [suse-sles-e] SLES 9 boot process
This may be a stupid question, On the other question, How can it be a
stupid question if I don't ask it!
I would like to understand more about the boot process of SLES 9 or is
this in the case of 2.6 kernel?
I have looked at
"/usr/share/doc/manual/sles-admin_en/administration.pdf" already
1) looking at the initrd.img file, I don't understand why there are so
many routines just to find root-dev. Do I need to find real-root-dev if
my FS is in RAM, besides /usr or what should I set that to?
2) If I store /var/log dir over NFS, do I have to mount /var/log prior
to /etc/init.d/boot starts?
3) What process/services must I start before mounting NFS area besides
a. System having the IP up
b. Default route set
c. /sbin/portmap running
4) Do I need to run things like hotplug, coldplug, resmgr, nfs, nfsboot,
fbset, hwscan,....
In the initrd, there is a linuxrc file, do I need to set
"/proc/sys/kernel/real-root-dev" if my initrd is in RAM. Also, once
linuxrc finish running, how does it know to run /etc/inittab next?
There is no pivot_root and chroot/switchroot.
What is ran between the initrd and inittab and /etc/init.d/boot?
Thanks for any help any one can provide!
Steven
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