Ubuntu Natty: Userland 32-bit, kernel 64-bit?

Saya mencoba menginstal secara manual kernel 64-bit untuk Ubuntu 32-bit. Saya punya alasan untuk melakukannya, tetapi terlalu rumit untuk dijelaskan di sini. Sebelum ke Natty, ini bekerja dengan baik. Sekarang, di Natty, saya mendapatkan pesan kesalahan berikut ketika saya mencoba melakukannya dengan cara yang sama:

dsimcha@dsimcha-laptop:~$ sudo dpkg -i --force-architecture linux-image-2.6.38-8-server_2.6.38-8.42_amd64.deb
[sudo] password for dsimcha:
dpkg: error processing linux-image-2.6.38-8-server_2.6.38-8.42_amd64.deb (--install):
cannot access archive: No such file or directory
Errors were encountered while processing:
linux-image-2.6.38-8-server_2.6.38-8.42_amd64.deb
dsimcha@dsimcha-laptop:~$ cd Downloads/
dsimcha@dsimcha-laptop:~/Downloads$ sudo dpkg -i --force-architecture linux-image-2.6.38-8-server_2.6.38-8.42_amd64.deb
dpkg: warning: overriding problem because --force enabled:
package architecture (amd64) does not match system (i386)
(Reading database ... 159153 files and directories currently installed.)
Preparing to replace linux-image-2.6.38-8-server:amd64 2.6.38-8.42 (using linux-image-2.6.38-8-server_2.6.38-8.42_amd64.deb) ...
Done.
Unpacking replacement linux-image-2.6.38-8-server:amd64 ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 2.6.38-8-server /boot/vmlinuz-2.6.38-8-server
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 2.6.38-8-server /boot/vmlinuz-2.6.38-8-server
dpkg: dependency problems prevent configuration of linux-image-2.6.38-8-server:amd64:
linux-image-2.6.38-8-server:amd64 depends on initramfs-tools (>= 0.36ubuntu6).
linux-image-2.6.38-8-server:amd64 depends on coreutils | fileutils (>= 4.0); however:
Package coreutils:amd64 is not installed.
linux-image-2.6.38-8-server:amd64 depends on module-init-tools (>= 3.3-pre11-4ubuntu3); however:
linux-image-2.6.38-8-server:amd64 depends on wireless-crda; however:
dpkg: error processing linux-image-2.6.38-8-server:amd64 (--install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
linux-image-2.6.38-8-server:amd64

Ketika saya mencoba dependensi secara manual, saya mendapatkan, misalnya:

dsimcha@dsimcha-laptop:~/Downloads$ sudo dpkg -i --force-architecture coreutils_8.5-1ubuntu6_amd64.deb
dpkg: warning: overriding problem because --force enabled:
package architecture (amd64) does not match system (i386)
dpkg: error processing coreutils_8.5-1ubuntu6_amd64.deb (--install):
coreutils:amd64 8.5-1ubuntu6 (Multi-Arch: no) is not co-installable with coreutils:i386 8.5-1ubuntu6 (Multi-Arch: no) which is currently installed
Errors were encountered while processing:
coreutils_8.5-1ubuntu6_amd64.deb

Adakah yang berhasil menginstal kernel 64-bit pada Natty 32-bit? Jika demikian, bagaimana ini bisa dilakukan?