xen-tools tries to use /dev/loop/0 (doesn't exist) instead of /dev/loop0 (does exist). Reproducible: Always Steps to Reproduce: use an image file with xen I've been able to work around it by creating the directoy and a symlink. Should probably just mknod it. This might be an issue with udev, but more likely xen-tools as it isn't integrating into the gentoo system.
Please provide the output of emerge --info xen-tools udev util-linux . util-linux provides the mount and losetup commands, so it could be relevant.
emerge --info xen-tools udev util-linux Portage 2.1.10.3 (hardened/linux/amd64, gcc-4.4.5, glibc-2.12.2-r0, 2.6.39-grsec-xen x86_64) ================================================================= System Settings ================================================================= System uname: Linux-2.6.39-grsec-xen-x86_64-Intel-R-_Core-TM-2_Duo_CPU_T7500_@_2.20GHz-with-gentoo-2.0.2 Timestamp of tree: Fri, 15 Jul 2011 00:45:01 +0000 app-shells/bash: 4.1_p9 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.1-r1, 3.1.3-r1 dev-util/cmake: 2.8.4-r1 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.0.2 sys-apps/openrc: 0.8.3-r1 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.5 sys-devel/gcc-config: 1.4.1-r1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.82 sys-kernel/linux-headers: 2.6.36.1 (virtual/os-headers) sys-libs/glibc: 2.12.2 Repositories: gentoo sunrise hardened-dev ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA dlj-1.1 skype-eula ut2003 AdobeFlash-10.1" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=native -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--autounmask=n" FEATURES="assume-digests binpkg-logs collision-protect distlocks ebuild-locks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg" FFLAGS="" GENTOO_MIRRORS="http://mirror.mcs.anl.gov/pub/gentoo/ http://lug.mtu.edu/gentoo/ http://gentoo.llarian.net/ " LANG="en_US.UTF-8" LC_ALL="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en en_US de ja ko" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/sunrise /var/lib/layman/hardened-development" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" USE="3dnow X a52 aac acl acpi alsa amd64 apm async bash-completion berkdb bzip2 cairo caps cjk cleartype cli corefonts cracklib crypt cups cxx device-mapper dri faac faad ffmpeg flac gdbm gif gnutls gpg gpm hardened hvm iconv ieee1394 ipv6 iso14755 jpeg justify kerberos kvm lame ldap lvm mmx modules mp3 mudflap multilib musepack ncurses nls nptl nptlonly nsplugin ogg opengl openmp pam pcre perl png policykit pppd python qt3support raw readline samba session smime spell sqlite sse sse2 ssl svg symlink sysfs syslog tcpd threads tiff truetype type1 unicode urandom v4l v4l2 vorbis wcwidth x264 xcb xinetd xml xorg xvid zip 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="braindump flow karbon kexi kpresenter krita tables words" 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 ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en en_US de ja ko" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nouveau" 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, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= app-emulation/xen-tools-4.1.0-r1 was built with the following: USE="hvm (multilib) -acm -api -custom-cflags -debug -doc -flask -ioemu -pygrub -screen" CFLAGS="-fno-strict-overflow" CXXFLAGS="-O2 -pipe -march=native -fomit-frame-pointer -fno-strict-overflow" LDFLAGS="" sys-fs/udev-164-r2 was built with the following: USE="extras (multilib) -build (-selinux) -test" sys-apps/util-linux-2.19.1 was built with the following: USE="cramfs crypt (multilib) ncurses nls perl unicode -loop-aes -old-linux (-selinux) -slang (-uclibc)"
still occur after any udev updates?
4.1.0 has been dropped from the tree. Does this still occur in 4.1.1?
unfortunately, my test system broke and I haven't had time to replace it yet. I'll need to find a replacement to test :(
To double check, run # grep /dev/loop /etc/xen/scripts/block on your newly repaired system. In xen-tools-4.1.1 and -9999 this reveals xen is setting the correct form. # grep next_devnum /etc/xen/scripts/block local next_devnum=0 # grep /dev/loop /etc/xen/scripts/block echo "/dev/loop${next_devnum}" loopdev=$(losetup -a | sed -e 's+^/dev/loop++' -e 's/:.*//' | find_free_loopback_helper) Unless further evidence to the contrary, xensource has synced with udev
