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=head1 NAME
guestfs-release-notes - libguestfs Release Notes
=head1 RELEASE NOTES FOR LIBGUESTFS 1.14
These release notes only cover the differences from the previous
stable/dev branch split (1.12.0). For detailed changelogs, please see
the git repository, or the ChangeLog file distributed in the tarball.
=head2 New features
Erlang bindings.
virt-alignment-scan is a new tool to check the alignment of
partitions within virtual machines or disk images.
virt-sparsify is a new tool to make virtual machine disk images
sparse.
virt-sysprep is a new tool to make cloning guests from a template
simpler.
=head3 guestfish
- New commands setenv, unsetenv, to set environment variables.
- The input file and line number is printed in error messages.
- guestfish progress bars are now a "mini-library" used by other
tools too.
=head3 guestmount
- the --live option (for access to live VMs) now works.
=head3 virt-cat
- virt-cat can now handle Windows paths and drive letters (RHBZ#693359).
=head3 virt-filesystems
- the MBR partition type byte is displayed in --long output.
=head3 virt-make-fs
- virt-make-fs now sets the MBR partition type byte correctly,
improving compatibility with Windows (RHBZ#746295).
=head3 virt-resize
- virt-resize can now work with guests using extended and logical
partitions, in particular Ubuntu guests.
- virt-resize can now align the first partition of Windows guests,
improving performance. The new virt-resize --align-first option
controls this behaviour.
- The virt-resize --machine-readable flag makes it possible to use
virt-resize from other programs.
- Partitions are now aligned to 128 sectors (usually 64K) by
default. This improves efficiency on high-end storage. The new
virt-resize --alignment option allows the alignment to be
adjusted.
=head3 virt-win-reg
- The syntax for deleting registry keys and values is documented
in the man page (RHBZ#737944).
=head3 library
- non-printing characters are escaped correctly in debug output.
- GUESTFS_EVENT_ENTER is a new event type generated whenever a
libguestfs function is called.
- the library contains systemtap/DTrace probes.
- the library can now be compiled without hivex (RHBZ#723474).
=head3 inspection
- Improve detection of Windows disks.
- Adds support for:
ttylinux - a minimal Linux
Mageia (thanks Michael Scherer)
OpenSUSE and zypper (thanks Michael Scherer, Vincent Untz)
Ubuntu logos (thanks Michael Scherer)
NetBSD and pkgsrc (thanks Michael Scherer)
- Handle some guest types that use /dev/root in /etc/fstab.
- Fix handling of guests with > 26 disks (thanks Matthew Booth)
- Add support for guests with HP Smart Array disks (thanks Matthew Booth)
=head3 febootstrap
- FEBOOTSTRAP_KERNEL, FEBOOTSTRAP_MODULES environment variables can
be set in order to choose which kernel to use for the appliance.
=head3 misc
- ArchLinux support now working with Linux 3.0 (thanks Erik Nolte)
- libvirt disks marked <readonly/> are now added readonly when
using the virt-tools '-d' option.
=head2 Security
(no security problems were found or fixed in this release)
=head2 New APIs
compress-out, compress-device-out, copy-device-to-device,
copy-device-to-file, copy-file-to-device, copy-file-to-file,
get-smp, part-to-partnum, set-smp.
The mount API no longer implicitly adds -o sync,noatime options.
add-domain has a new 'readonlydisk' optional parameter to control
how <readonly/> disks are handled.
=head2 Internals
- Coverity was run on the source and more bugs were identified and
fixed.
- PCRE library is now required to build libguestfs.
- APIC is now the default for the appliance. You can also enable
SMP support in the appliance.
- OCaml bindings now correctly acquire GC lock during callbacks.
- Out of tree builds should now work correctly (thanks Hilko Bengen).
- ./configure --with-extra="..." can be used by packagers to set
the extra version string.
- zero, zero-device APIs: if the blocks already contain zeroes,
don't write zeroes, so that we don't unnecessarily make the
underlying storage non-sparse.
- is-zero, is-zero-device APIs: optimize these so zero detection is
faster.
=head2 Bugs fixed
- 748266 libguestfs should detect versions of qemu which require -machine pc option
- 747290 libguestfs ignores <readonly/> in libvirt XML
- 747287 Misleading error message when permission denied opening a disk image
- 746295 virt-make-fs doesn't set partition ID
- 744795 guestmount --live is not usable
- 737944 virt-win-reg hyphen (delete key) syntax may be wrong, and is not documented
- 733297 ruby event handlers fail with "exception in callback: wrong argument type Proc (expected Data)"
- 731744 libguestfs should escape special/non-printing characters in debug output
- 729887 appliance crashes running aug_init with flags=4
- 729075 libguestfs confuses Hp_recovery partition with Windows root filesystem
- 727178 error: luks_open: cryptsetup: error while loading shared libraries: libfipscheck.so.1: cannot open shared object file: No such file or directory
- 726739 libguestfs: error: aug_get: no matching node, trying to find hostname
- 723474 If hivex and/or pcre not installed, libguestfs fails to compile
- 693359 virt-cat and virt-edit don't handle case sensitive NTFS paths properly
- 678231 virt-inspector reports unknown filesystem UUID
- 671082 libguestfs does not work with kernel-rt
- 666578 libguestfs: unknown filesystem label SWAP-sda2
- 642821 virt-resize falls over on a disk image with a logical swap partition
=head1 SEE ALSO
L<guestfs-examples(1)>,
L<guestfs-faq(1)>,
L<guestfs-performance(1)>,
L<guestfs-recipes(1)>,
L<guestfs-testing(1)>,
L<guestfs(3)>,
L<guestfish(1)>,
L<http://libguestfs.org/>
=head1 AUTHOR
Richard W.M. Jones
=head1 COPYRIGHT
Copyright (C) 2009-2023 Red Hat Inc.
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