Greetings,
I have followed the instructions given in Documentation/initrd.txt with regard to
pivot_root, but am unable to unmount the filesystem, when everything is called from a
non-interactive script.
ie. When I set a link from linuxrc to /bin/ash and then manually go through the
commands in the shell script, I am able to unmount the old initrd filesystem.
However, when linuxrc is a shell script containing the same commands, I am unable to
umount the old initrd fs. I get instead: "Device or resource busy".
The contents of my linuxrc script are as follows:
--------------------
#!/bin/ash
export PATH=/bin:/sbin:/usr/bin:/usr/sbin
cd /
mkdir /new
mount -t shm /dev/shm /new
cp -pdR * new
cd new
pivot_root . initrd
cd /
exec chroot . /bin/ash <dev/console > dev/console 2>&1
-------------
ash is a static binary. chroot, mount and pivot_root are from busybox.
- Ralph Jones
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