Bugzilla Bug 159319

On downgrading from sys-fs/reiserfsprogs-3.6.20 (because it was added to
package.mask) to 3.6.19, /sbin no longer contains fsck.reiserfs, which I think
should be symlinked to /sbin/reiserfsck.

emerge --info
Portage 2.1.2_rc4-r1 (default-linux/x86/2006.1/desktop, gcc-4.1.1,
glibc-2.5-r0, 2.6.19-gentoo-r2 i686)
=================================================================
System uname: 2.6.19-gentoo-r2 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz
Gentoo Base System version 1.12.8
Last Sync: Thu, 28 Dec 2006 20:50:01 +0000
dev-java/java-config: 1.3.7, 2.0.31
dev-lang/python:     2.4.4
dev-python/pycrypto: 2.0.1-r5
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.61
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.17
sys-devel/gcc-config: 1.3.14
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.19
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=nocona -mtune=nocona -pipe -ggdb"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /var/bind"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf
/etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-O2 -march=nocona -mtune=nocona -pipe -ggdb"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks installsources metadata-transfer parallel-fetch
sandbox sfperms splitdebug strict"
GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/
http://ftp.du.se/pub/os/gentoo
http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/
http://pandemonium.tiscali.de/pub/gentoo/ http://gentoo.mirror.solnet.ch
http://gentoo.blueyonder.co.uk"
LANG="en_GB.UTF-8"
LC_ALL="en_GB.UTF-8"
LINGUAS="en_GB"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage /usr/portage/local/layman/sunrise
/usr/portage/local/layman/musicbrainz"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="x86 X a52 aac aalib acl acpi aim alsa alsa_cards_hda-intel
alsa_pcm_plugins_adpcm alsa_pcm_plugins_alaw alsa_pcm_plugins_asym
alsa_pcm_plugins_copy alsa_pcm_plugins_dmix alsa_pcm_plugins_dshare
alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty alsa_pcm_plugins_extplug
alsa_pcm_plugins_file alsa_pcm_plugins_hooks alsa_pcm_plugins_iec958
alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa alsa_pcm_plugins_lfloat
alsa_pcm_plugins_linear alsa_pcm_plugins_meter alsa_pcm_plugins_mulaw
alsa_pcm_plugins_multi alsa_pcm_plugins_null alsa_pcm_plugins_plug
alsa_pcm_plugins_rate alsa_pcm_plugins_route alsa_pcm_plugins_share
alsa_pcm_plugins_shm alsa_pcm_plugins_softvol apache2 arts audiofile avi
bash-completion berkdb bitmap-fonts bluetooth bonobo browserplugin bzip2 bzlib
cairo caps cdparanoia cdr cjk cli cracklib crypt cups curl dbus dlloader doc
dri dts dvd dvdr dvdread eds elibc_glibc emacs emboss encode esd ethereal
examples exif expat fam fbcon ffmpeg firefox flac foomaticdb fortran gcj gd
gdbm gif glut gmp gnome gnutls gphoto2 gpm graphviz gstreamer gtk gtk2 gtkhtml
guile hal iconv icq idn ieee1394 imagemagick imlib input_devices_evdev
input_devices_keyboard input_devices_mouse ipv6 isdnlog jabber jack java
javascript jbig jce jpeg jpeg2k junit kde kdehiddenvisibility kernel_linux lcms
leim libg++ libgda libnotify libsamplerate linguas_en_GB lm_sensors logrotate
lua mad matroska mbox mikmod milter mime mmap mmx mng mono mp3 mpeg mpi msn
ncurses nls nptl nptlonly nsplugin offensive ogg oggvorbis openal opengl oscar
oss pam pcntl pcre pdf perl png postgres ppds pppd profile python qt3 qt4
quicktime readline recode reflection ruby sdl seamonkey session sharedmem
sndfile snmp sockets sox speex spell spl sse sse2 ssl svg sysvipc tcl tcltk
tcpd tetex theora threads tiff tk truetype truetype-fonts type1-fonts udev
uicktime unicode usb userland_GNU v4l video_cards_fbdev video_cards_radeon
video_cards_vesa vim-syntax vorbis win32codecs wmf wxwindows x264 xface xine
xml xml2 xorg xv xvid yahoo zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS,
PORTAGE_RSYNC_EXTRA_OPTS

Not downgrade related, this version simply doesn't create the symlinks at all
(you can check in /var/db/pkg/sys-fs/reiserfsprogs-3.6.19/CONTENTS)

added back in symlinks with 3.6.19-r1 ... i was looking at 3.6.20 and thought
they werent needed any longer, but that's only true for 3.6.20, not 3.6.19