Re: about the source of loader

From: Dan Nelson (dnelson_at_allantgroup.com)
Date: 02/28/05

  • Next message: Peter Pentchev: "Re: clock.h" 
    Date: Mon, 28 Feb 2005 09:57:34 -0600
To: ?? ?? <ppmmssgg@hotmail.com>

    In the last episode (Feb 28), ?? ?? said:
    > I have some questions of source of loader
    >
    > 1. Where is the source of the "ls" command?

    /sys/boot/common/ls.c

    > 2. How it mount the ufs boot partition as "/" when it start,Is it a
    > function or something else?.

    The loader can't mount anything, since it isn't the kernel. Since it
    can read UFS filesystems, though, if it can find an /etc/fstab, it will
    try and pass the path to the root volume to the kernel in the tunable
    "vfs.root.mountfrom". See /sys/boot/common/boot.c:getrootmount() and
    /sys/kern/vfs_mount.c:vfs_mountroot() . 

    -- 
	Dan Nelson
	dnelson@allantgroup.com
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  • Next message: Peter Pentchev: "Re: clock.h"

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