URL section is the upstream bug. sys-fs/lvm2-2.02.92's /sbin/dmsetup changed its behaviour. Commands like "/sbin/dmsetup info /dev/dm-0" no longer works with version 2.02.92, which says "Device does not exist. Command failed.". Reproducible: Always Portage 2.1.10.49 (hardened/linux/amd64/desktop, gcc-4.5.3, glibc-2.14.1-r2, 3.2.5-hardened x86_64) ================================================================= System uname: Linux-3.2.5-hardened-x86_64-AMD_Athlon-tm-_II_Neo_K345_Dual-Core_Processor-with-gentoo-2.1 Timestamp of tree: Sat, 25 Feb 2012 11:45:01 +0000 app-shells/bash: 4.2_p20 dev-lang/python: 2.7.2-r3, 3.2.2 dev-util/cmake: 2.8.7-r3 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.9.1 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.68 sys-devel/automake: 1.9.6-r3, 1.11.3 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.5.3-r2 sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.2-r1 (virtual/os-headers) sys-libs/glibc: 2.14.1-r2 Repositories: gentoo science sunrise gentoo-zh gentoo-haskell local ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA google-talkplugin skype-eula" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe -ggdb" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /usr/share/themes/oxygen-gtk/gtk-2.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe -ggdb" DISTDIR="/var/pkg/dist" EMERGE_DEFAULT_OPTS="--keep-going y --with-bdeps y --quiet-build y" FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles news parallel-fetch protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="-O2" GENTOO_MIRRORS="http://mirrors.163.com/gentoo" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en_GB en zh_TW zh af ak am ar as as_IN ast az be be_BY bg bn bn_BD bn_IN bo br brx bs ca ca_XV ca@valencia crh cs csb cy da de de_FR dgo dz ee el en_CA en_US en_ZA eo es es_AR es_CL es_CR es_ES es_LA es_MX et et_EE eu fa fi fil fo fr fr_CA fy fy_NL ga ga_IE gd gl gu gu_IN ha he hi hi_IN hne hr hsb hu hy hy_AM ia id is it ja ka kk km kn kn_IN ko ko_KR kok ks ku ky la lb lg lo lt lv mai me mi mk ml ml_IN mn mni mr mr_IN ms mt my nb nb_NO nds ne nl nn nn_NO no nr ns nso oc om or or_IN pa pa_IN pap pl ps pt pt_BR pt_PT rm ro ru rw sa_IN sat sd se sh sh_YU son si sk sl sq sr sr@ijekavian sr@ijekavianlatin sr@latin sr@Latn sr_CS ss st sv sv_SE sw sw_TZ ta ta_IN ta_LK te te_IN tg th ti ti_ER tk tl tn tr ts tt ug uk ur_IN ur_PK uz uz@cyrillic ve ven vi wa xh zh_CN zh_HK zu" MAKEOPTS="-j2" PKGDIR="/var/pkg/bin" PORTAGE_COMPRESS="/usr/bin/xz" PORTAGE_COMPRESS_FLAGS="" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/var/pkg/portage" PORTDIR_OVERLAY="/var/pkg/science /var/pkg/sunrise /var/pkg/gentoo-zh /var/pkg/haskell /var/pkg/usr" SYNC="rsync://mirrors.163.com/gentoo-portage" USE="X a52 aac acl acpi alsa amd64 avahi bash-completion berkdb bluetooth branding bzip2 cairo cdda cdr cjk cli consolekit cracklib crypt cups cxx dbus djvu dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac gdbm gdu gif gpm gsm gstreamer hardened iconv introspection ipv6 jpeg jpeg2k justify kde lame lcms ldap libnotify lzma mad mms mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib ncurses networkmanager nls nptl nptlonly ogg opengl openmp pam pango pax_kernel pcre pdf png policykit ppds pppd qt3support qt4 readline samba sdl semantic-desktop session spell sqlite sse sse2 ssl startup-notification svg sysfs taglib tcpd theora threads tiff truetype udev unicode upnp urandom usb v4l vaapi vim-syntax vorbis wifi x264 xcb xcomposite xml xorg xulrunner xv xvid xvmc zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan stage tables krita karbon braindump" CAMERAS="ptp2 adc65 agfa_cl20 aox ax203 barbie canon casio_qv clicksmart310 digigr8 digita dimagev dimera3500 directory enigma13 fuji gsmart300 hp215 iclick jamcam jd11 jl2005a jl2005c kodak_dc120 kodak_dc210 kodak_dc240 kodak_dc3200 kodak_ez200 konica konica_qm150 largan lg_gsm mars mustek panasonic_coolshot panasonic_dc1000 panasonic_dc1580 panasonic_l859 pccam300 pccam600 polaroid_pdc320 polaroid_pdc640 polaroid_pdc700 ricoh ricoh_g3 samsung sierra sipix_blink sipix_blink2 sipix_web2 smal sonix sony_dscf1 sony_dscf55 soundvision spca50x sq905 st2205 stv0674 stv0680 sx330z template topfield toshiba_pdrm11" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="crypt plymouth" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev joystick synaptics wacom" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_GB en zh_TW zh af ak am ar as as_IN ast az be be_BY bg bn bn_BD bn_IN bo br brx bs ca ca_XV ca@valencia crh cs csb cy da de de_FR dgo dz ee el en_CA en_US en_ZA eo es es_AR es_CL es_CR es_ES es_LA es_MX et et_EE eu fa fi fil fo fr fr_CA fy fy_NL ga ga_IE gd gl gu gu_IN ha he hi hi_IN hne hr hsb hu hy hy_AM ia id is it ja ka kk km kn kn_IN ko ko_KR kok ks ku ky la lb lg lo lt lv mai me mi mk ml ml_IN mn mni mr mr_IN ms mt my nb nb_NO nds ne nl nn nn_NO no nr ns nso oc om or or_IN pa pa_IN pap pl ps pt pt_BR pt_PT rm ro ru rw sa_IN sat sd se sh sh_YU son si sk sl sq sr sr@ijekavian sr@ijekavianlatin sr@latin sr@Latn sr_CS ss st sv sv_SE sw sw_TZ ta ta_IN ta_LK te te_IN tg th ti ti_ER tk tl tn tr ts tt ug uk ur_IN ur_PK uz uz@cyrillic ve ven vi wa xh zh_CN zh_HK zu" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="radeon" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS
It seems the bug (https://bugzilla.redhat.com/show_bug.cgi?id=797322) has been marked as a regression in 2.02.92 and will be fixed in 2.02.94.
I can confirm this bug. This should solve the issue: http://sources.redhat.com/git/gitweb.cgi?p=lvm2.git;a=commitdiff;h=0fd3ed18f1bb55b24c229104869e1c2a2cdabdf8
dracut-017 just committed to portage tree has workaround for the issue.
.95 is in the tree now.
