Very Computer

1. double mounted / filesystem (rootfs?)

After upgrading from 2.4.18 to 2.4.19 several things got confused
in startup, such as assuming / was already mounted rw and not
remounting it rw and then failing because it is really ro.  The
problem is that / shows up twice in /proc/mounts now.

Prior to remounting rw:

rootfs / rootfs rw 0 0
/dev/root / reiserfs ro 0 0

After remounting rw (after tweaking the script):

rootfs / rootfs rw 0 0
/dev/root / reiserfs rw 0 0

I'm guessing this "rootfs" thing is a sneaky ramfs mounted first
and the designated root filesystem device mounted over it.  My
questions are:

1.  How might this impact initial ramdisk?  Will initrd simply
    mount over rootfs?

2.  How will this affect use of pivot_root() ... e.g. which root
    will be pivoted?

3.  When will we be able to get the actual device, instead of the
    fake "/dev/root", listed as the root filesystem?  IWSTM that
    scanning the same list of devices used to interpret root=
    strings could be used to reverse the device code back to the
    device name, with digits appended.

4.  What does rootfs gain us?

--
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| Phil Howard - KA9WGN |   Dallas   | http://linuxhomepage.com/ |

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