I use squashmount from mv overlay. Since sys-fs/aufs-util-3.15_p20140721 /sbin/umount.aufs is broken, at least for me. It give: /sbin/umount.aufs:br.c:47: internal error,[dir name]: Inappropriate ioctl for device Reproducible: Always Portage 2.2.10 (default/linux/amd64/13.0/desktop/gnome/systemd, gcc-4.9.0, glibc-2.19-r1, 3.15.6-aufs-costel x86_64) ================================================================= System uname: Linux-3.15.6-aufs-costel-x86_64-AMD_Athlon-tm-_5350_APU_with_Radeon-tm-_R3-with-gentoo-2.2 KiB Mem: 7614580 total, 6431244 free KiB Swap: 0 total, 0 free Timestamp of tree: Mon, 28 Jul 2014 04:45:01 +0000 ld GNU ld (Gentoo 2.24 p1.4) 2.24 app-shells/bash: 4.2_p47 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.7, 3.4.1 dev-util/cmake: 2.8.12.2-r1 dev-util/pkgconfig: 0.28-r1 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.14.1 sys-devel/binutils: 2.24-r3 sys-devel/gcc: 4.9.0 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2-r1 sys-devel/make: 4.0-r1 sys-kernel/linux-headers: 3.15 (virtual/os-headers) sys-libs/glibc: 2.19-r1 Repositories: gentoo added ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native -w" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=native -w" DISTDIR="/mnt/date/linux/distfiles" EMERGE_DEFAULT_OPTS="--jobs=3 --load-average=6 --keep-going --with-bdeps=y --complete-graph --quiet-build=n --autounmask-write" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs candy cgroup collision-protect config-protect-if-modified distlocks fail-clean fixlafiles ipc-sandbox merge-sync news nodoc noinfo parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms strict unknown-features-filter unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://ftp.romnet.org/gentoo/ http://mirrors.xservers.ro/gentoo/ ftp://ftp.romnet.org/gentoo/ http://ftp.roedu.net/pub/mirrors/gentoo.org/ http://distfiles.gentoo.org/" LANG="ro_RO.UTF-8" LC_ALL="ro_RO.UTF-8" LDFLAGS="-Wl,-O1,--sort-common,--hash-style=gnu,--as-needed,-z,now" MAKEOPTS="-j4 --load-average=6" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_EXTRA_OPTS="--human-readable --progress" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/added" USE="X a52 aac acl acpi alsa amd64 avx berkdb branding bzip2 cairo cdda cdr cli colord cracklib crypt cups cxx dbus dri dts dvd dvdr eds emboss encode evo exif fam ffmpeg firefox flac gdbm gif gmp gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk gtk3 iconv introspection ipv6 ithreads jpeg lcms ldap libnotify libsecret logrotate mad mmx mng modules mp3 mp4 mpeg multilib mysql nautilus ncurses networkmanager nls nptl ogg opengl openmp opus pam pango pch pcre pdf png policykit postgres ppds pulseaudio python qt3support qt4 readline sdl session socialweb spell sse sse2 sse4_1 sse4_2 ssl ssse3 startup-notification svg systemd tcpd theora threads tiff truetype udev udisks unicode upower usb vaapi vhosts vorbis wxwidgets x264 xcb xml xv xvid zlib" ABI_X86="64" ALSA_CARDS="virtuoso hda-intel" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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 sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" 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 ublox ubx" GRUB_PLATFORMS="efi-64 pc" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="ro en" NETBEANS_MODULES="php" NGINX_MODULES_HTTP="access auth_basic autoindex browser charset empty_gif fastcgi geo gzip limit_conn limit_req map memcached proxy referer rewrite scgi split_clients spdy ssi upstream_ip_hash userid uwsgi" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby21" USERLAND="GNU" VIDEO_CARDS="fglrx 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" USE_PYTHON="2.7 3.4" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, SYNC
hi, it works for me so the best would be you are describing this issue to upstream in the mailinglist (https://lists.sourceforge.net/lists/listinfo/aufs-users). Let's see what upstream says.
Ok, let's see. Bug report is here: http://sourceforge.net/p/aufs/mailman/message/32660690/
Using -i at umount squashfs part solved the problem. Thanks goes to user mv from Gentoo forums. Bug can be closed.
Most likely outdated.
