libguestfs is a library and a set of tools for reading, writing, managing, inspecting, rescuing and resizing disk images and offline and live virtual machines. I'm pleased to announce the release of libguestfs 1.12, the next stable branch of libguestfs. There are many changes and new features in this release: please see the notes below. You can get source from the website: http://libguestfs.org/ http://libguestfs.org/download/1.12-stable/ Binary packages will be available by the end of the week from: http://koji.fedoraproject.org/koji/packageinfo?packageID=8391 (Fedora) http://libguestfs.org/download/binaries/ (Debian, Ubuntu) Release notes for libguestfs 1.12.0 ----------------------------------- These release notes only cover the differences from the previous stable/dev branch split (1.10.0). For detailed changelogs, please see the git repository, or the ChangeLog file distributed in the tarball. New features guestfish: - guestfish strings can use escapes, eg. ><fs> write /foo "line 1\nline 2\n" - guestfish write-append command can be used to append to files. - Long-running file uploads and downloads can be cancelled through the API or by hitting ^C in guestfish. - New guestfish "display" command for displaying graphical files inside guests. - In guestfish, tab completion now works on /dev/mapper devices. virt-inspector: - Inspection API can get an icon or logo for certain guests. - virt-inspector includes the logo and hostname for certain guests. - virt-inspector can now get the version and release numbers for RPM packages. - CentOS and Scientific Linux are now treated as separate distros by the inspection API. virt-resize: - virt-resize can now handle btrfs. - New virt-resize --ntfsresize-force option allows Windows VMs to be resized multiple times. other virt tools: - guestfish, guestmount, virt-cat, virt-df, virt-edit, virt-filesystems, virt-inspector, virt-ls and virt-rescue now allow you to use "-d UUID" option to specify a guest by UUID. This makes them more robust to use from other programs. - virt-ls -lR option allows complex file iteration and guest analysis. - virt-win-reg supports HKEY_USERS\<SID> and HKEY_USERS\<username>. - virt-win-reg new option --unsafe-printable-strings allows printable strings to be displayed in the output (unsafely: read the documentation before using). - virt-edit has been rewritten in C. API and language bindings: - Java is now completely supported. See http://libguestfs.org/guestfs-java.3.html - JRuby is supported via the Java bindings. - guestfs_close now appears in trace messages. - Python binding adds explicit g.close() method. - Python programs can now use the new event API. - Python GIL is released during libguestfs calls, allowing multithreaded Python programs to work properly. - 9pfs (Plan 9 filesystems exported from the host) are now supported. - Add -DGUESTFS_WARN_DEPRECATED=1 to warn about use of deprecated API functions in C programs. - New manual page guestfs-recipes(1) with recipes. - mkfs-opts can now set inode size and sector size on created filesystems (thanks Nikita Menkovich). - guestfs_last_errno is now accessible from OCaml (as g#last_errno ()). Security - optargs_bitmask is checked even for calls that have no optional arguments. This closes a possible exploit in the daemon from untrusted callers. New APIs btrfs-filesystem-resize, get-pgroup, inspect-get-icon, is-zero, is-zero-device, list-9p, list-dm-devices, mount-9p, ntfsresize-opts, set-pgroup, write-append Internals - Coverity (a static analysis tool) was run across the codebase and many fixes were made. - Generator can handle functions that return RBufferOut and have optional arguments. - Compatible with Perl 5.14. - Compatible with gcc 4.6. - Perform safety checks on QEMU. - C API tests can now fully test calls that have optional arguments. - Use ./configure --enable-install-daemon to install /usr/sbin/guestfsd. - po-docs directory now covers all man pages. - stderr from qemu process is now captured by the event subsystem. Bugs fixed - 602997 part-get-bootable gives wrong result with an unordered part layout - 661280 virt-rescue: panic when shutting down: "/sbin/reboot: No such file or directory" - 700369 qemu-system-x86_64 says 'KVM not supported for this target' - 705200 guestmount attempt results in access denied - 714981 'list-filesystems' does not know about virtio 9p filesystems or detect existing mounts - 717786 libguestfs python bindings should have an explicit close call - 721275 virt-resize in F16 should support btrfs Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top