Need help upgrading to latest kernel 2.6.24

[sin_gage]

i am trying to upgrade to the latest kernel released , 2.6.24 but after compiling it i get error , unable to unable to mount root fs on unknown block and the options it shows is hda and mine is sda. Also added a line , root=/dev/sda2 but no help.

[bofh28]

you probably forgot support for your filesystem. At a minimum ext2 and ext3 need to be compiled into the kernel (not modules). Here is the filesystem section from my 2.6.24 kernel .config file.
#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4DEV_FS is not set