RHEL 5 : statically linked shell for root?

[Rubens Gomes]

Does RHEL 5 have a statically linked shell that I could set for the "root" user?
 
I currently have the default /usr/sh (--> bash) shell set for the "root" account.  However, I cannot umount /usr mount point in init level "1" because this shell is dynamically dependent/linked to the files below. 
 
Here is the 'lsof' output:
 
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
sh 3180 root mem REG 8,3 56459040 199464 /usr/lib/locale/locale-archivesh 3180 root mem REG 8,3 25462 199708 /usr/lib/gconv/gconv-modules.cache
 
Is it possible to close/release the above locale/gconv files from the sh process?
 
Thanks.
 
Rubens Gomes
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