OK, admittedly I don't where this problem is but it's either with systemd, util-linux, or the kernel but for some reason I can no longer loop mount any ISO files. It looks like the mount command works but then nothing gets mounted. dmesg shows: ===================== ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A ===================== However journalctl reports: ===================== Unit mnt-loop.mount is bound to inactive unit ===================== systemd[1]: Unit mnt-loop.mount is bound to inactive unit. Stopping, too. ===================== Be happy to provide anything else needed. Reproducible: Always emerge --info Portage 2.2.18 (python 2.7.9-final-0, default/linux/amd64/13.0/desktop/kde/systemd, gcc-4.9.2, glibc-2.20-r2, 3.19.2-gentoo x86_64) ================================================================= System uname: Linux-3.19.2-gentoo-x86_64-Intel-R-_Core-TM-_i7-3770K_CPU_@_3.50GHz-with-gentoo-2.2 KiB Mem: 32896516 total, 19143856 free KiB Swap: 6291452 total, 6291452 free Timestamp of repository gentoo: Fri, 27 Mar 2015 21:45:01 +0000 sh bash 4.3_p33-r2 ld GNU ld (Gentoo 2.25 p1.0) 2.25 app-shells/bash: 4.3_p33-r2::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r2::gentoo, 3.3.5-r1::gentoo, 3.4.3::gentoo dev-util/cmake: 3.0.2::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.13.11::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r1::gentoo sys-devel/automake: 1.10.3-r1::gentoo, 1.11.6-r1::gentoo, 1.12.6::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25::gentoo sys-devel/gcc: 4.9.2::gentoo sys-devel/gcc-config: 1.8::gentoo sys-devel/libtool: 2.4.6-r1::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync11.us.gentoo.org/gentoo-portage priority: -1000 desktop location: /usr/local/portage/desktop masters: gentoo priority: 0 server location: /usr/local/portage/server masters: gentoo priority: 1 gnome location: /var/lib/layman/gnome masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -fomit-frame-pointer -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt" 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" CXXFLAGS="-O2 -march=native -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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" USE="X a52 aac aalib acl acpi aes alsa amd64 amr apache2 audiofile avahi avx bash-completion berkdb bluray branding btrfs bzip2 cairo caps cdaudio cdda cddb cdparanoia cdr cdrdao chm cleartype cli corefonts cracklib crypt cups curl cxx dbus declarative designer-plugin djvu dri dts dv dvb dvd dvdr ebook emboss encode exif fam fdk ffmpeg firefox flac fortran gdbm gif glamor gmp google gphoto2 gpm gstreamer gtk gtk3 iconv icu ieee1394 imagemagick imap imlib introspection ipv6 jack java jpeg jpeg2k kde kipi kpathsea lame lash lcms libffi libnotify lzma mad marble midi mmap mmx mmxext mng modules mozilla mp3 mp4 mpeg mtp multilib musicbrainz ncurses network nls nodrm nptl nsplugin nvidia ofx ogg opencl openexr opengl openmp pam pango pcre pdf phonon plasma png policykit popcnt ppds pulseaudio qt3support qt4 readline rtmp sasl scanner sdl semantic-desktop session slp smp sndfile spell sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 startup-notification subversion svg systemd theora threads tiff tk transparency truetype type1 udev udisks unicode unwind upower usb v4l vaapi vcd vdpau vim-syntax vorbis vpx wav wavpack wayland wmf wxwidgets x264 xattr xcomposite xine xinerama xml xscreensaver xv xvid xvmc zlib" ABI_X86="64" ALSA_CARDS="hda-intel hdsp hpet hrtimer rtctimer seqdummy virmidi" 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="author braindump flow karbon kexi krita sheets stage words" CAMERAS="*" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" 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="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_US en" NGINX_MODULES_HTTP="autoindex fancyindex fastcgi gzip" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby19 ruby20" SANE_BACKENDS="epson epson2" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau intel modesetting" 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_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Messed up that journal log entry.. it's: ==================================== ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A systemd[1]: Unit mnt-loop.mount is bound to inactive unit. Stopping, too. ====================================
Exactly what command(s) are you using to mount it?
Sorry... here's a full log report of what happens when I attempt to loop mount an ISO file: ====================================================== Mar 27 19:08:58 sartre systemd[729]: Unit mnt-loop.mount is bound to inactive unit. Stopping, too. Mar 27 19:08:58 sartre kernel: ISO 9660 Extensions: Microsoft Joliet Level 3 Mar 27 19:08:58 sartre kernel: ISO 9660 Extensions: RRIP_1991A Mar 27 19:08:58 sartre systemd[729]: Unmounting /mnt/loop... Mar 27 19:08:58 sartre systemd[1]: Unit mnt-loop.mount is bound to inactive unit. Stopping, too. Mar 27 19:08:58 sartre systemd[1]: Unmounting /mnt/loop... Mar 27 19:08:58 sartre systemd[729]: mnt-loop.mount mount process exited, code=exited status=1 Mar 27 19:08:58 sartre systemd[729]: Unmounted /mnt/loop. Mar 27 19:08:58 sartre systemd[729]: Unit mnt-loop.mount entered failed state. Mar 27 19:08:58 sartre umount[14025]: umount: /mnt/loop: not mounted Mar 27 19:08:58 sartre systemd[1]: Unmounted /mnt/loop. ====================================================== It appears that right after recognizing the file type it is immediately umounted (if indeed it was actually mounted).
(In reply to Mike Gilbert from comment #2) > Exactly what command(s) are you using to mount it? One actual example: mount -o loop /mnt/saved/ISO/Linux/Debian/debian-7.5.0-amd64-netinst.iso /mnt/loop/ But I've tried many different ISO files and have always been able to do this in the past.
*** This bug has been marked as a duplicate of bug 541402 ***
