1guestfs-release-notes-1.6(1)Virtualization Supportguestfs-release-notes-1.6(1)
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6 guestfs-release-notes - libguestfs Release Notes
7
9 These release notes only cover the differences from the previous
10 stable/dev branch split (1.4.0). For detailed changelogs, please see
11 the git repository, or the ChangeLog file distributed in the tarball.
12 New features
14 - Use a new method for creating and caching the appliance. This
15 greatly improves the performance of libguestfs, often by a factor
16 of x 4 to x 5.
17 - Support for guest inspection (like virt-inspector) via the ordinary
19 API and all language bindings. 'guestfish -i' option is as a side-
20 effect much quicker.
21 - virt-inspector and core inspection API can now detect guests running:
23 Fedora, Debian, Ubuntu, Windows, Red Hat Enterprise Linux, CentOS,
24 Scientific Linux, Gentoo, Pardus, Arch Linux, MeeGo.
25 - Support for LUKS whole-disk encryption in guests.
27 - PHP bindings.
29 - Progress messages (and progress bars in guestfish and virt-resize)
31 for certain long-running operations.
32 - virt-df is now much more efficient. Use '--one-per-guest' to restore
34 the old per-guest isolation behaviour.
35 - guestfish 'copy-in' and 'copy-out' commands for copying files and
37 directories recursively in and out of the guest.
38 - guestfish 'hexedit' command for doing binary edits to devices and
40 files.
41 - Change guestfish -i syntax to allow commands to be specified on the
43 command line (retaining backwards compatibility).
44 - guestfish '-d <domain>' for adding disks from libvirt domains.
46 - guestfish '-N' option supports several new prepared disk image types:
48 lvfs : disk with LV formatted with filesystem
49 lv : disk with LV
50 bootroot : boot+root
51 bootrootlv : boot and root on LV
52 - guestfish 'more' and 'edit' commands now work with arbitrary files.
54 - guestfish '--echo-keys' option allows you to echo keys/passphrases
56 while typing them.
57 - guestmount now supports -a / -d / -i options, like guestfish.
59 - Use virtio-serial for communications with the appliance. This
61 also has a major performance benefit.
62 - virt-edit '-b' option to create a backup of edited files.
64 - virt-edit '-e' option for non-interactive edits to files.
66 - Ability to capture core dumps from the appliance (thanks Matthew Booth).
68 - virt-rescue now shuts down cleanly (thanks Matthew Booth).
70 - virt-rescue now has a --network option to enable network access.
72 - virt-resize can now handle guests which use GPT partition table format.
74 - virt-resize has better support for shrinking guests.
76 - virt-resize supports qcow2-format guests.
78 - $TMPDIR can be used to override almost all temporary directory usage.
80 - OCaml users can use an alternate OO-style of coding, eg. g#launch ()
82 - The API supports calls which take optional parameters, eg.
84 $g->add_drive_opts ("disk", readonly => 1);
85 - Trace output now escapes and shortens large strings (thanks
87 Matthew Booth).
88 - Autosync is now on by default, resulting in more reliable behaviour
90 when the handle is closed.
91 - virt-df --uuid option allows you to follow a domain across migration
93 and renaming.
94 - Translations of manual pages.
96 Security
98 - CVE-2010-3851 libguestfs: missing disk format specifier when adding a disk
99 https://www.redhat.com/archives/libguestfs/2010-October/msg00036.html
100 This is comprehensively fixed in this release, and the fix will be
101 backported to the other stable branches after more testing.
102 - virt-inspector no longer relies on untrusted guest code to list
104 applications in some guests.
105 New APIs
107 download-offset, file-architecture, findfs-label, findfs-uuid,
108 inspect-os, inspect-get-arch, inspect-get-distro,
109 inspect-get-filesystems, inspect-get-major-version,
110 inspect-get-minor-version, inspect-get-mountpoints,
111 inspect-get-product-name, inspect-get-type, is-blockdev, is-chardev,
112 is-fifo, is-lv, is-socket, is-symlink, list-filesystems, luks-add-key,
113 luks-close, luks-format, luks-format-cipher, luks-kill-slot,
114 luks-open, luks-open-ro, lvm-clear-filter, lvm-canonical-lv-name,
115 lvm-set-filter, part-to-dev, pread-device, pwrite-device,
116 upload-offset
117 Internals
119 - Use size_t for loop iterators.
120 - Refactor the library code into separate files.
121 - Refactor the generator code into separate files.
122 - Generate guestfish commands.
123 - guestfish & guestmount options processing is unified.
124 - Protocol changes:
125 error message size increased to 64K
126 send errno to library
127 - Add 'make bindist' to make a binary distribution.
128 - Cleaner behaviour under valgrind.
129 - More testing of the guestfish command line options and libvirt
130 integration.
131 - The Perl inspection code is no longer used by any of the tools.
132 Bugs fixed
134 - 646822 libguestfs trace mode should not print long binary strings
135 - 646821 virt-df should have --uuid option
136 - 646432 /dev/mapper paths should not be returned from guestfs_mountpoints
137 - 643624 libguestfs tools documentation should describe how to quote guest domain names from shell
138 - 642934 No way to specify disk format when adding a disk to libguestfs
139 - 642933 guestfs_list_filesystems should be used in all possible places
140 - 642932 guestmount options should match guestfish options
141 - 642930 virt-inspector (Sys::Guestfs::Lib) should use C inspection APIs
142 - 642929 C inspection code should ignore /dev/fd* in /etc/fstab
143 - 642826 virt-resize converts any other image format to raw without notifying user, instructions do not account for this
144 - 640961 Document that grub-install might be needed for old Linux guests after virt-resize
145 - 639986 virt-df --csv does not properly quote " in libvirt domain names
146 - 639405 Interrupted cached appliance creation leaves libguestfs unusable
147 - 638901 Appliance filename should not contain repository name
148 - 638899 /dev/mapper paths should not be returned from C inspection APIs
149 - 636918 Updates to Spanish translation
150 - 636061 [abrt] guestfish-1.2.11-1.fc12: malloc_consolidate: Process /usr/bin/guestfish was killed by signal 11 (SIGSEGV)
151 - 635969 glob echo mkfs ext2 /dev/vd[b-t]1 prints garbage
152 - 634246 guestfs_part_get_parttype returns "loop" when run against a partition, LV or filesystem
153 - 633766 virt-resize --shrink fails
154 - 633357 Updates to Spanish translation
155 - 633096 virt-resize calculates block device size incorrectly, doesn't work with qcow2 target
156 - 629593 Dutch translation added
157 - 627556 Updates to Spanish translations of libguestfs
158 - 626843 Updates to Spanish translations
159 - 619793 [RFE] Need a way to determine if a particular block device is a logical volume
160 - 618556 virt-rescue return none zero value when exit
161 - 617200 mount operation failed and hung on some images which running in read-only mode
162 - 610880 libguestfs should set broader read perms on tmpdir, so works in some situations when executed with umask 077
163 - 599503 document that mkmountpoint and umount-all cannot be mixed
164 - 571714 Running virt-df on disk image relabels it, so qemu can no longer write to it.
165 - 502533 Updated Polish translation of libguestfs
166
168 guestfs-examples(1), guestfs-faq(1), guestfs-performance(1),
169 guestfs-recipes(1), guestfs-testing(1), guestfs(3), guestfish(1),
170 http://libguestfs.org/
171
173 Richard W.M. Jones
174
176 Copyright (C) 2009-2020 Red Hat Inc.
177
179 This program is free software; you can redistribute it and/or modify it
180 under the terms of the GNU General Public License as published by the
181 Free Software Foundation; either version 2 of the License, or (at your
182 option) any later version.
183 This program is distributed in the hope that it will be useful, but
185 WITHOUT ANY WARRANTY; without even the implied warranty of
186 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
187 General Public License for more details.
188 You should have received a copy of the GNU General Public License along
190 with this program; if not, write to the Free Software Foundation, Inc.,
191 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
192
194 To get a list of bugs against libguestfs, use this link:
195 https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
196 To report a new bug against libguestfs, use this link:
198 https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
199 When reporting a bug, please supply:
201 • The version of libguestfs.
203 • Where you got libguestfs (eg. which Linux distro, compiled from
205 source, etc)
206 • Describe the bug accurately and give a way to reproduce it.
208 • Run libguestfs-test-tool(1) and paste the complete, unedited output
210 into the bug report.
211libguestfs-1.46.0 2021-09-23 guestfs-release-notes-1.6(1)