guestfs-release-notes - libguestfs
リリースノート
These release notes only cover the differences from the previous stable/dev
branch split (1.22.0). For detailed changelogs, please see the git repository,
or the ChangeLog file distributed in the tarball.
User-Mode Linux (UML) can be used as an alternative backend (ie. instead of
KVM). This improves performance especially when using libguestfs inside a VM
(eg. in the cloud). UML is supported as a first-class backend. See
"USER-MODE LINUX BACKEND" in
guestfs(3) for how to use this.
ARM (32 bit) and PPC64 are now fully supported.
Tools
virt-builder(1) is a new tool for building virtual machine images. It
lets you rapidly and securely create guests and customize them.
New
virt-sysprep(1) operations: Remove files in
/tmp and
/var/tmp. Remove RPM database files. Change root and user passwords.
More log files are removed. New operations which are not enabled by default:
Create random UUIDs for filesystems. Reset firewall rules. (Wanlong Gao)
virt-resize(1) and virt-sysprep can now use URIs to specify a remote
disk.
Use "guestfish -N filename=type" to create a named disk image (instead
of the default
test1.img etc).
virt-sparsify(1) now tests if there is enough disk space to complete the
operation, instead of possibly running out of space half way through.
virt-format(1) and
virt-make-fs(1): new
--label option for
setting filesystem label.
virt-resize
--no-sparse flag can be used to resize on to partitions and
other targets that are not zeroed.
Language bindings
New bindings for the Go programming language.
API
Support for the systemd journal.
"guestfs_add_drive_opts" can now control the qemu caching mode through
a new "cachemode" parameter. You can select improved performance for
temporary drives, or safety.
"guestfs_set_label" now works for XFS and btrfs.
New GUESTFS_EVENT_WARNING event for warning messages.
Inspection
Better inspection of SUSE guests (Olaf Hering).
Better support for non-standard Windows %systemroot% (Matthew Booth).
Enhanced error reporting for Augeas errors.
- CVE-2013-2124
- https://bugzilla.redhat.com/show_bug.cgi?id=968306
A denial of service was possible when inspecting certain guests. The fix has
been backported to 1.20 and 1.22 branches.
- CVE-2013-4419
- https://www.redhat.com/archives/libguestfs/2013-October/msg00031.html
Fix insecure temporary directory handling for remote guestfish. The fix has
been backported to 1.20 and 1.22 branches.
add-drive-scratch: Add a temporary scratch drive
aug-label
aug-setm
journal-open: Systemd journal support
journal-close
journal-next
journal-skip
journal-get
journal-get-data-threshold
journal-set-data-threshold
remount: Allow rw flag to be adjusted on mounted filesystems
set-uuid: Set UUID of filesystem
"is-file", "is-dir", "is-blockdev",
"is-chardev", "is-fifo", "is-socket" APIs now
have an extra "followsymlinks" flag.
"add-drive" has a new "cachemode" parameter.
The following packages are required to build libguestfs 1.24:
- Augeas ≥ 1.0.0
The following optional packages may be added to enhance functionality but are
not required:
- sd-journal
- To read journal files from guests which use that.
- url_mkcow
- For UML backend.
- curl
- gpg
- xz
- For virt-builder.
- golang ≥ 1.1.1
- For Go language bindings.
New "make check-*" rules replace "make extra-tests". See
"make help" and
guestfs(3) for details.
Perl code can now be valgrinded.
Inspection code is now fuzz-tested.
"make" no longer recurses into the generator directory in every other
directory. This reduces the overhead of builds considerably.
Additional tests for Augeas, hivex.
Add a launch timeout of 20 minutes waiting for the appliance to start up.
Add a timeout (4 hours) to all tests so we can catch the case where qemu or
other components hang.
Use kvmclock and "-cpu host". This improves clock stability and
overall performance.
"./configure --enable-packet-dump" mode is fixed.
"./configure --enable-valgrind-daemon" mode has been rewritten. It is
now feasible for developers to keep this flag enabled at all times.
Backends have been refactored to be modular (although they are not actually
loadable modules).
When enabled, the network now uses resolver configuration (ie. /etc/resolv.conf)
from the host.
- https://bugzilla.redhat.com/1019889
- libguestfs-tools.conf should have a man page
- https://bugzilla.redhat.com/1018149
- valgrind errors in btrfs_subvolume_list
- https://bugzilla.redhat.com/1002032
- mke2fs can't return the correct filesystem type when
blockscount is less than 2048 for ext3
- https://bugzilla.redhat.com/1001876
- Update "rsync-out" helpout for using
wildcard
- https://bugzilla.redhat.com/1001875
- Argument 'excludes' of tar-out does not work
- https://bugzilla.redhat.com/1000428
- virt-format uses wrong partition type for vfat
filesystems
- https://bugzilla.redhat.com/1000121
- 'sh' command before mount causes daemon to segfault
- https://bugzilla.redhat.com/998513
- guestfish does not work when you mix --remote and --add
options
- https://bugzilla.redhat.com/998482
- guestfish remote prints "libguestfs: error: waitpid
(qemu): No child processes"
- https://bugzilla.redhat.com/995711
- list-filesystems command fails if there are no block
devices
- https://bugzilla.redhat.com/994517
- cache=none/O_DIRECT workaround doesn't work for images with
backing files
- https://bugzilla.redhat.com/989356
- cap-get-file will return error if the file has not be set
capabilities
- https://bugzilla.redhat.com/986877
- RFE: Implement set-uuid command
- https://bugzilla.redhat.com/986875
- RFE: Implement set-label for xfs
- https://bugzilla.redhat.com/985269
- Can't set acl value for a specified user with
'acl-set-file'
- https://bugzilla.redhat.com/983218
- libguestfs double free when kernel link fails during
launch
- https://bugzilla.redhat.com/981715
- Make xfs filesystem failed with specified blocksize, gives
"unknown option -b" error
- https://bugzilla.redhat.com/981683
- "hivex-commit" should fail with a relative
path
- https://bugzilla.redhat.com/981663
- disk-format "qemu-img info: JSON parse error"
when target file does not exist
- https://bugzilla.redhat.com/978302
- mke2fs-J should give a meaningful error when specified type
is anything except 'ext{2,3,4}'
- https://bugzilla.redhat.com/975797
- Specifying virtio interface ('iface' parameter) breaks the
direct backend - libguestfs hangs
- https://bugzilla.redhat.com/975753
- "virt-resize --expand" and "virt-resize
--resize" outputs error message for Win2008 32bit OS
- https://bugzilla.redhat.com/975412
- inspection: Augeas expressions are broken with augeas >=
0.10
- https://bugzilla.redhat.com/974904
- virt-resize --expand fails on Ubuntu Cloud Image
- https://bugzilla.redhat.com/974489
- Regression: Fedora inspection broken by change from
guestfs_exists to guestfs_is_file
- https://bugzilla.redhat.com/972775
- txz-out command produces a bzip2-compressed file (should be
xz-compressed)
- https://bugzilla.redhat.com/969845
- upload to a directory occasionally hangs instead of
failing
- https://bugzilla.redhat.com/968875
- virt-sysprep should support URL-type arguments
- https://bugzilla.redhat.com/624334
- blockdev-setbsz succeeds, but does not affect
blockdev-getbsz
guestfs-examples(1),
guestfs-faq(1),
guestfs-performance(1),
guestfs-recipes(1),
guestfs-testing(1),
guestfs(3),
guestfish(1),
http://libguestfs.org/
Richard W.M. Jones
Copyright (C) 2009-2020 Red Hat Inc.
To get a list of bugs against libguestfs, use this link:
https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
To report a new bug against libguestfs, use this link:
https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
When reporting a bug, please supply:
- •
- The version of libguestfs.
- •
- Where you got libguestfs (eg. which Linux distro, compiled
from source, etc)
- •
- Describe the bug accurately and give a way to reproduce
it.
- •
- Run libguestfs-test-tool(1) and paste the
complete, unedited output into the bug report.