unmounting a filesystem mounted by /init (initramfs)

From: Rafael Espíndola
Date: Thu Jul 28 2005 - 17:50:25 EST

I am trying to build a system that uses a unionfs as root. The init
script is based on the one used by gentoo and uses initramfs. The
problem is how to remount the unionfs constituents read only during

cat /proc/mounts displays /dev/hda1 (ext2) mounted rw in /memory. The
problem is that /memory is no longer visible after the init script did
a chroot and a

mount -o remount,ro /dev/hda1

says that /dev/hda1 is not mounted!

does any anyone has an idea?

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