No filesystem could mount root, tried: cramfs squashfs romfs

I am giving you details about my building process for embedded target:
1. I downloaded t2-7.0-rc2.tar.bz2 and extract it in my root directory.
2. # cd t2-7.0-rc2
3 # ./script/Config -cfg new
4 then I choose: 
   - Target Distribution
       (embedded) Generic Embedded
   -Target Style
       (dietlibc) diet libc (less is more)

  -Architecture, CPU and Optimisation
  (x86)   x86 (AMD, Intel, VIA and compatible)
  (i486)  Optimised for intel 486
  (isolinux) Use Syslinux/isolinux as CD loader

5 # ./script/Build-Target -cfg  new
6. Some packages are failed to build, I removed those from
config/new/package file. (i.e. libtool, cpio, coreutils, findutils, ppp,
zile, popt, util-linux, psmisc. tftp-hpa, clockspeed) and add cramfs.
and continue rerun ./script/Build-Target -cfg new
7. Build process completed.
8. # dd if=/dev/zero of=/boot/initrd bs=1M count=20
9. # mke2fs -F -m 0 -b 1024 /boot/initrd
10. # mkdir /mnt/test
11. # mount -t ext2 -o loop /boot/initrd /mnt/test
12 and copy the contents of
/root/t2-7.0-rc2/build/new-7.0-rc2-embedded-x86-i486/TOOLCHAIN/rootfs into
/mnt/test directory.
13. # umount /mnt/test
14. # gzip -9 /boot/initrd
15. initrd.gz file is created
16. I copied initrd.gz, vmlinuz
(/root/t2-7.0-rc2/build/new-7.0-rc2-embedded-x86-i486/boot/vmlinuz_2.6.21.7-dist)
and syslinux.cfg in Compact Flash.
17. # syslinux /dev/sdb1 (to make CF bootable).
18. syslinux.cfg contain:
              default vmlinuz root=/dev/ram0 initrd=initrd.gz ide=nodma
PMEDIA=ideflash PKEYS=us
19. when I boot my system with CF support. It ended with these errors:
      No filesystem could mount root, tried: cramfs squashfs romfs
  kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(1,0)



-- 
View this message in context: 
http://www.nabble.com/No-filesystem-could-mount-root%2C-tried%3A-cramfs-squashfs-romfs-tp14707952p14707952.html
Sent from the T2 mailing list archive at Nabble.com.