cannot delete libc.so.7 from build directories

[Rohit Tripathi]

I tried this from runlevel 1 as root and still can't seem to get rid of these

rm: obj.old/usr/src/lib32/usr/lib32/libc.so.7: Operation not permitted
rm: obj.old/usr/src/lib32/usr/lib32/libcrypt.so.4: Operation not permitted
rm: obj.old/usr/src/lib32/usr/lib32/libthr.so.3: Operation not permitted
rm: obj.old/usr/src/lib32/usr/lib32/libkse.so.3: Operation not permitted
rm: obj.old/usr/src/lib32/usr/lib32/librt.so.1: Operation not permitted
rm: obj.old/usr/src/lib32/usr/lib32: Directory not empty
rm: obj.old/usr/src/lib32/usr: Directory not empty
rm: obj.old/usr/src/lib32: Directory not empty
rm: obj.old/usr/src: Directory not empty
rm: obj.old/usr: Directory not empty
rm: obj.old: Directory not empty
rm: obj.old2/usr/src/lib32/usr/lib32/libc.so.7: Operation not permitted
rm: obj.old2/usr/src/lib32/usr/lib32/libcrypt.so.4: Operation not permitted
rm: obj.old2/usr/src/lib32/usr/lib32/libthr.so.3: Operation not permitted
rm: obj.old2/usr/src/lib32/usr/lib32/libkse.so.3: Operation not permitted
rm: obj.old2/usr/src/lib32/usr/lib32/librt.so.1: Operation not permitted
rm: obj.old2/usr/src/lib32/usr/lib32: Directory not empty
rm: obj.old2/usr/src/lib32/usr: Directory not empty
rm: obj.old2/usr/src/lib32: Directory not empty
rm: obj.old2/usr/src: Directory not empty
rm: obj.old2/usr: Directory not empty
rm: obj.old2: Directory not empty