Сборка кросс-системы

Вот собрал себе ia64 cross-toolchain:

USE="-*" crossdev -v --binutils 2.18-r1 --gcc 4.3.1 --kernel 2.6.25-r4 --libc 2.7-r2 --ex-gdb --target ia64-unknown-linux-gnu

Теперь пытаюсь собрать систему.
Взял из руководства http://www.gentoo.org/proj/en/base/embedded/cross-development.xml обёртку для emerge (сценарий xmerge):

#!/bin/bash
CBUILD=$(portageq envvar CHOST)
PORTAGE_CONFIGROOT="$SYSROOT"
if [[ "$1" == "--root" ]] ; then
    ROOT="$2"
    shift 2
else
    ROOT="$SYSROOT"
fi
export CBUILD PORTAGE_CONFIGROOT ROOT

emerge $*

И когда я запускаю

xmerge -av gentoo-sources

система мне выдаёт:

/usr/bin/xmerge: line 1: #!/bin/bash: Нет такого файла или каталога


!!! /root/etc/make.profile is not a symlink and will probably prevent most merges.
!!! It should point into a profile within /usr/portage/profiles/
!!! (You can safely ignore this message when syncing. It's harmless.)



These are the packages that would be merged, in order:

Calculating dependencies /
!!! All ebuilds that could satisfy "sys-kernel/gentoo-sources" have been masked.
!!! One of the following masked packages is required to complete your request:
- sys-kernel/gentoo-sources-2.6.25-r4 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.25-r3 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.25-r2 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.25-r1 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.25 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r8 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r7 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r6 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r5 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r4 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r3 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r2 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24-r1 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.24 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.23-r9 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.22-r10 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.20-r10 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.19-r5 (masked by: missing keyword)
- sys-kernel/gentoo-sources-2.6.16-r13 (masked by: missing keyword)

For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.

P.S.

• Символьная ссылка на профиль:
  ln -snf /usr/portage/profiles/default/linux/ia64/2007.0/desktop /usr/ia64-unknown-linux-gnu/etc/make.profile
• make.conf для кросс-системы:
  

  ACCEPT_KEYWORDS="~ia64"
  ARCH="ia64"
  CFLAGS="-O3 -pipe"
  CHOST="ia64-unknown-linux-gnu"
  CXXFLAGS="${CFLAGS}"
  GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/"
  INPUT_DEVICES="keyboard"
  MAKEOPTS="-j3"
  USE="ia64 symlink"
  

Подскажите, пожалуйста, как решить эти проблемы?
Спасибо.