Custom kernel- modules fail to install

[Pandro]

A few moments ago finished compiling my own kernel, but still I can not boot with the new kernel.
When installing modules:
$this->bbcode_second_pass_code('', 'make modules_install')

I get this:
$this->bbcode_second_pass_code('', 'Warning: you may need to install module-init-tools')
The kernel was compiled in the traditional manner, and I get no error with mkinitcpio:
$this->bbcode_second_pass_code('', '---->mkinitcpio -k 3.2.9Compiled -g /boot/initramfs-KCompiled.img

==> Starting build: 3.2.9
-> Running build hook: [base]
-> Running build hook: [udev]
-> Running build hook: [autodetect]
-> Running build hook: [pata]
-> Running build hook: [scsi]
-> Running build hook: [sata]
-> Running build hook: [filesystems]
-> Running build hook: [usbinput]
-> Running build hook: [fsck]
-> Running build hook: [fglrx]
Building fglrx module for 3.2.9Compiled
Ok.
==> Generating module dependencies
==> Creating gzip initcpio image: /boot/initramfs-KCompiled.img
==> Image generation successful
')

I have the entry in grub and I can enter without problem, but there comes a point where you do not start:
$this->bbcode_second_pass_code('', 'Waiting 10 seconds for device /dev/sda4 ...
ERROR: Unable to find root device '/dev/sda4'.
You are being dropped to a recovery shell
Type 'exit' to try and continue booting
sh: can't access tty: job control turned off
[rootfs /]#')

Any idea?

[WarheadsSE]

I believe this should have been destined for bbs.archlinux.org