1guestfs-release-notes-1.18(1)Virtualization Supportguestfs-release-notes-1.18(1)
2
6 guestfs-release-notes - libguestfs Release Notes
7
9 These release notes only cover the differences from the previous
10 stable/dev branch split (1.16.0). For detailed changelogs, please see
11 the git repository, or the ChangeLog file distributed in the tarball.
12 New features
14 virt tools
15 - virt-sysprep has been rewritten and expanded (thanks Wanlong Gao)
17 http://libguestfs.org/virt-sysprep.1.html
18 - virt-sparsify --zero is a new option that zeroes the named
20 partition or filesystem
21 - virt-sparsify can now safely sparsify Linux swap partitions
23 - virt-sparsify fixed so it cleans up after ^C
25 http://libguestfs.org/virt-sparsify.1.html
26 - a new tool 'libguestfs-make-fixed-appliance' is provided to build
28 fixed appliances that can be copied to other machines that don't
29 have febootstrap support
30 http://libguestfs.org/libguestfs-make-fixed-appliance.1.html
31 - virt-filesystems now displays the parents (containers) of MD
33 devices and volume groups
34 - virt-alignment-scan, run with no args, displays alignment information
36 for all libvirt domains
37 - virt-df and virt-alignment-scan will display information from all
39 guests even when a disk is inaccessible
40 - virt-rescue new --scratch option to make scratch disks
42 https://rwmj.wordpress.com/2012/04/26/virt-rescue-scratch/#content
43 - virt-make-fs can now be used to create btrfs
45 - virt-edit preserves permissions, UID, GID and SELinux context
47 when editing files
48 - guestfish passes the close event over stdout and remote correctly
50 - guestfish new '--pipe-error' option lets you detect errors in pipe
52 commands
53 - guestfish globs now expand device names
55 - comma and colon characters in filenames now handled correctly by
57 all virt tools
58 inspection
60 - added support for Fedora 17+
62 - added support for FreeDOS
64 - added support for Buildroot and Cirros
66 - inspection is now compatible with Windows guests that have been
68 sysprepped (thanks Grant Williamson).
69 API
71 - broad support for btrfs added, including adding multiple devices,
73 fsck, snapshots (thanks Wanlong Gao)
74 - the new 'mount-local' API brings FUSE support directly into the
76 core libguestfs API
77 https://rwmj.wordpress.com/2012/05/14/tip-using-mount-local-api-from-c/#content
78 - new man page: guestfs-performance(1), which contains performance
80 tuning tips
81 http://libguestfs.org/guestfs-performance.1.html
82 - new man page: guestfs-faq(1), Frequently Asked Questions
84 http://libguestfs.org/guestfs-faq.1.html
85 - ENOTSUP (from guestfs_last_errno) is now returned for APIs that
87 are not supported
88 examples
90 - 'copy_over' example showing how to copy between two handles
92 - 'display_icon' program displays the icon associated with a guest
94 - 'mount_local.c' example shows how to use the mount-local API
96 Security
98 (no security problems were found or fixed in this release)
99 New APIs
101 btrfs-device-add: Add devices to a btrfs filesystem.
102 btrfs-device-delete: Remove devices from a btrfs filesystem.
103 btrfs-filesystem-sync: Sync a btrfs filesystem.
104 btrfs-filesystem-balance: Balance a btrfs filesystem.
105 btrfs-fsck: Check btrfs filesystem.
106 btrfs-set-seeding: Enable or disable seeding.
107 btrfs-subvolume-create: Create a btrfs snapshot.
108 btrfs-subvolume-delete: Delete a btrfs snapshot.
109 btrfs-subvolume-list: List btrfs snapshots and subvolumes.
110 btrfs-subvolume-set-default: Set default btrfs subvolume.
111 btrfs-subvolume-snapshot: Create a writable btrfs snapshot.
112 get-e2attrs: List ext2 file attributes of a file.
113 get-e2generation: Get ext2 file generation of a file.
114 isoinfo, isoinfo-device: Get information from the header of ISO files.
115 llz: List files with SELinux information.
116 lvcreate-free: Create an LVM logical volume in % remaining free space.
117 md-stat: Return underlying devices from an MD device.
118 mkfs-brtfs: Make btrfs filesystem, with all tunables.
119 mount-local, mount-local-run, umount-local: FUSE support in the API.
120 ntfsclone-in, ntfsclone-out: Save, restore NTFS from backup.
121 ntfsfix: Fix common errors and force Windows to check NTFS.
122 set-e2attrs: Set or clear ext2 file attributes of a file.
123 set-e2generation: Set ext2 file generation of a file.
124 set-label: Unified interface for setting filesystem label.
125 vgmeta: Get volume group metadata.
126 wipefs: Wipe filesystem signatures from a device.
127 zero-free-space: Zero free space in a filesystem.
128 Internals
130 - The debian/ subdirectory has been removed. We recommend you use
131 the official Debian packages made by Hilko Bengen.
132 http://people.debian.org/~bengen/libguestfs/
133 http://packages.debian.org/search?keywords=libguestfs
134 - O_CLOEXEC / SOCK_CLOEXEC is now used for almost all file
136 descriptors that the library opens.
137 - posix_fadvise is called when sequentially reading or writing large
139 files.
140 - close all file descriptors and remove all signal handlers in the
142 recovery process
143 - multiple gcc warnings and Coverity bugs have been fixed; many
145 strict-overflow bugs have also been fixed
146 - use ./configure --enable-valgrind-daemon to use valgrind on the
148 daemon; many errors have been fixed
149 - use ./configure --with-qemu-options to pass extra options to qemu
151 - the daemon now has a growable strings buffer type (DECLARE_STRINGSBUF)
153 - the <guestfs.h> header file works with C++ and we have a regression
155 test for this
156 - multiple APIs which should only be called in the CONFIG state now
158 give an error if they are not
159 - .gitignore fixed to use absolute paths
161 - gobject bindings have been expanded, including mapping libguestfs
163 events to gobject signals (thanks Matt Booth)
164 - gobject documentation is generated properly (thanks Matt Booth)
166 - gobject header files now live in a subdirectory
168 - CompareWithString test in the generator now works
170 - FUInt32, FUInt64 struct field types now use the correct XDR type
172 - OCaml tests are now run on bytecode and native code.
174 - java -Xlint:all is used, and all warnings have been fixed
176 - bmptopng, wrestool (etc) missing or failure no longer prints
178 warning messages
179 - ruby: Use RbConfig instead of Config.
181 - PYTHONPATH is set by the ./run script.
183 - appliance building is now thread-safe.
185 - appliance now uses 'ip' instead of 'ifconfig' and 'netstat'
187 commands
188 - several fixes to make parallel builds work properly
190 - guestfish --listen now cleans up properly
192 - the BUSY state has been removed
194 - gettextize has been removed, replaced by a simple Makefile.am
196 - gettext support now covers virt-resize, virt-sparsify and virt-sysprep
198 - better support for the arm architecture
200 Bugs fixed
202 - 822490 virt-ls error: "libguestfs: error: checksum: path: parameter cannot be NULL"
203 - 816839 data overflow error when debug progress -1
204 - 816098 virt-make-fs fails to make a btrfs filesystem because it doesn't allocate enough space
205 - 811872 inspection fails on ubuntu 10.04 guest with encrypted swap
206 - 811650 guestfs_last_error not set when qemu fails early during launch
207 - 811649 libguestfs cannot open disk images which are symlinks to files that contain ':' (colon) character
208 - 811117 [RFE][virt-sysprep] net-hwaddr not removed from "ifcfg-*" files on rhel
209 - 811112 [RFE][virt-sysprep] hostname can not be changed on rhel system
210 - 809361 inspection doesn't recognize Fedora 18 (grub2 + GPT)
211 - 807905 mkfs blocksize option breaks when creating btrfs
212 - 805070 virt-filesystems should show 'parents' of LV and RAID devices
213 - 804464 libguestfs cannot be built when LINGUAS is different then ja or uk
214 - 803664 libguestfs inspection fails on Windows XP: libguestfs: error: hivex: could not locate HKLM\SYSTEM\MountedDevices
215 - 803533 guestfish: write error
216 - 802389 event handlers for 'close' event doesn't work in remote mode
217 - 802109 libguestfs uses putc on stderr, results in many individual 1 byte writes of debug messages
218 - 801640 [RFE] the error reported by resize2fs-M need to be more clear
219 - 801298 Possible null dereference and resource leaks
220 - 801273 Document for set-pgroup need to be updated
221 - 798196 virt-resize confuses format and output_format variables; using --output-format sets the input format
222 - 797986 virt-resize on Windows XP in sysprep state causes "UNMOUNTABLE_BOOT_VOLUME" BSOD
223 - 796520 [RFE] Prevent user from running some appliance configure commands after appliance boot up
224 - 790721 multiprovider build error: RuntimeError: link: /tmp/.guestfs-0/kernel /tmp/.guestfs-0/kernel.10139: File exists
225 - 789960 guestfsd crash when try to mount non-exist disk
226 - 789504 virt-df (other tools?) should not give up if a guest disk is missing
227 - 788641 virt-edit doesn't preserve file permissions
228 - 786215 libguestfs inspection does not recognize FreeDOS operating system
229 - 786188 libguestfs inspection does not recognize FreeDOS install CD
230 - 785668 aug-defnode: daemon crash
231 - 784647 Libguestfs uses deprecated net-tools
232 - 769304 virt-resize on RHEL 6 kernel fails to re-read the partition table
233 - 755729 Error message for resize2fs-M needs tweaking
234 - 701814 virt-win-reg fails on a libvirt guest that has no defined disk format: "format parameter is empty or contains disallowed characters"
235 - 679737 libguestfs: improve error message when zerofree is not available in the appliance
236 - 635971 glob mkfs ext2 /dev/vd[b-t]1 does not expand
237
239 guestfs-examples(1), guestfs-faq(1), guestfs-performance(1),
240 guestfs-recipes(1), guestfs-testing(1), guestfs(3), guestfish(1),
241 http://libguestfs.org/
242
244 Richard W.M. Jones
245
247 Copyright (C) 2009-2020 Red Hat Inc.
248
250 This program is free software; you can redistribute it and/or modify it
251 under the terms of the GNU General Public License as published by the
252 Free Software Foundation; either version 2 of the License, or (at your
253 option) any later version.
254 This program is distributed in the hope that it will be useful, but
256 WITHOUT ANY WARRANTY; without even the implied warranty of
257 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
258 General Public License for more details.
259 You should have received a copy of the GNU General Public License along
261 with this program; if not, write to the Free Software Foundation, Inc.,
262 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
263
265 To get a list of bugs against libguestfs, use this link:
266 https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
267 To report a new bug against libguestfs, use this link:
269 https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
270 When reporting a bug, please supply:
272 • The version of libguestfs.
274 • Where you got libguestfs (eg. which Linux distro, compiled from
276 source, etc)
277 • Describe the bug accurately and give a way to reproduce it.
279 • Run libguestfs-test-tool(1) and paste the complete, unedited output
281 into the bug report.
282libguestfs-1.48.3 2022-05-26 guestfs-release-notes-1.18(1)