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 (1.34.0). For detailed changelogs, please see the git repository,
or the ChangeLog file distributed in the tarball.
New tools
Virt-tail is a new tool for following (tailing) log files within a guest,
similar to the regular "tail -f" command.
New features in existing tools
Virt-customize, virt-get-kernel, virt-sparsify and virt-sysprep can now handle
encrypted guests (Pino Toscano).
Virt-builder and virt-customize now support
--append-line, which is
useful for adding lines to the end of configuration files.
Virt-resize can now shrink and expand swap partitions (Pino Toscano).
Virt-resize can now output to non-local disks (Pino Toscano).
Virt-sysprep has a new operation called "backup-files" for removing
editor backups, and "passwd-backups" for removing
/etc/passwd- and similar.
Virt-dib can now create checksums using the new
--checksum option (Pino
Toscano).
Virt-dib can now create tgz files. In addition, extended attributes and SELinux
labels are preserved in the output tar file (Pino Toscano).
Virt-dib can now create squashfs files (Pino Toscano).
Bash tab-completion is now available in every command line tool that is shipped.
virt-v2v and virt-p2v
Conversions of Debian (6+) and Ubuntu (10.04+) guests are now supported
(Tomáš Golembiovský, Pino Toscano).
Conversions from SUSE Xen hypervisor have now been tested (Cédric
Bosdonnat).
Windows conversions may now install a program "pnp_wait.exe" which
prevents conflicts between the Windows Plug-and-Play Manager and our own
scripts that install virtio device drivers. Enabling this requires the
"pnp_wait.exe" program to be built separately (Roman Kagan).
OVA files exported from AWS can now be converted (Shahar Havivi).
When converting OVA files, in some circumstances virt-v2v can now read disk
images directly from the OVA input file instead of needing to unpack the OVA
file to a temporary directory. This can save large amounts of disk space, and
is quicker (Tomáš Golembiovský).
Virt-p2v can now be built on RHEL 5 (2007-era) Linux and RHEL 6, which means
that 32 bit and hardware with ancient fakeraid disks can be virtualized.
Binaries of virt-p2v based on these old versions of RHEL can be found at
http://oirase.annexia.org/virt-p2v/
Virt-p2v can now use nbdkit (an NBD server) as an alternative to qemu-nbd. In
addition, virt-p2v can use "socket activation" which is a more
robust method for opening the NBD listening socket. Socket activation works
with qemu-nbd or nbdkit, but requires the most up to date versions.
To prevent timeouts during P2V conversions, virt-p2v inhibits power saving on
the physical machine, and also sends ping packets over the ssh control and
data connections.
Virt-v2v no longer removes the "Processor" and "Intelppm"
nodes from the Windows Registry.
Xen and vCenter conversions can now be done using the libvirt backend, provided
libvirt ≥ 2.1.0 is used.
/dev/srX (SCSI CD-ROM) devices are ignored (Tomáš
Golembiovský).
When converting SUSE Linux guests, use
/etc/modprobe.conf.local if it
exists.
Removing VMware tools from Linux guests should now work reliably (Pino Toscano).
When converting OVA files, virt-v2v now checks the disk image hash contained in
the manifest file, whereas previously it was ignored because of a mistake in
the code. In addition, SHA256 hashes are now supported (Tomáš
Golembiovský).
When converting OVA files that contain compressed disk images, we now trust the
"ovf:compression" attribute from the metadata instead of using
content sniffing on the disk image (Tomáš Golembiovský).
A new flag
--vdsm-compat has been added to
-o vdsm mode, allowing
more efficient qcow2 images to be generated.
Since the RHEV product [commercially supported version of oVirt] has now been
renamed to RHV, "RHEV" was changed to "RHV" throughout the
tooling. In particular,
-o rhev becomes
-o rhv, although the old
name can be used for backwards compatibility.
The "RHEV-APT" utility is only installed when the output hypervisor is
oVirt or RHV.
A problem with virt-v2v running out of memory when doing an SELinux relabel of
the guest filesystem should now be resolved.
Language bindings
Setting "EXTRA_JAVAC_FLAGS" before
./configure allows you to
add arbitrary flags to "javac" when compiling the Java bindings.
Use of any libguestfs API which returned a single struct, from Perl or Java
bindings, would have leaked memory. This has now been fixed (Pino Toscano).
Inspection
Inspection of Windows guests with mildly corrupted Windows Registry hives should
now work instead of failing with an error. This feature requires hivex
≥ 1.3.14 (Dawid Zamirski).
For Debian guests, we can now read the URL, source name, summary and full
description of installed packages. For RPM-based guests we can read the URL,
summary and description (Pino Toscano).
Inspection of guest operating systems that use a separate
/usr partition
should now work more reliably (Pino Toscano).
When parsing guest
/etc/fstab, paths are reduced to a canonical form (eg.
"///usr//local//" → "/usr/local").
Inspection of btrfs subvolumes now works where the
/etc/fstab options
field contains commas.
/dev/cdN devices in guest
/etc/fstab are ignored (Pino Toscano).
Architectures and platforms
Stable releases are now tested on aarch64, ppc64 and ppc64le architectures.
The RISC-V architecture is now handled as a guest, and libguestfs will now at
least compile on RISC-V (but probably not work as there is no usable qemu at
the time of writing).
Detection of S/390 and S/390x binaries and guests is now supported.
Other
ExFAT filesystems are now supported (Miles Wolbe).
See also
guestfs-security(1).
There were no CVEs reported in this development cycle. However some
security-related hardening was carried out as described below.
Temporary filenames are now always generated using randomness from
/dev/urandom (previously the C function
random(3) was used in
one case).
The $TERM environment variable is now validated before passing it through to the
appliance kernel command line.
New APIs
- "guestfs_aug_transform"
- Exposes the Augeas "aug_transform" API (Pino
Toscano).
- "guestfs_find_inode"
- Find files by inode number (Matteo Cafasso).
- "guestfs_inspect_get_windows_software_hive"
- "guestfs_inspect_get_windows_system_hive"
- Return the path to the Windows "HKLM\SYSTEM" and
"HKLM\SOFTWARE" hives computed during inspection.
- "guestfs_mksquashfs"
- Create a squashfs filesystem from a path (Pino
Toscano).
Other API changes
- "guestfs_add_domain"
- This call now handles libvirt file-based volumes correctly,
where previously these would have been ignored. Also handled are disks
which require libvirt authentication secrets to open (Pino Toscano).
- "guestfs_canonical_device_name"
- This call will no longer incorrectly modify Linux software
RAID device names (like /dev/mdX).
- "guestfs_file_architecture"
- Previously the "file_architecture" API could
return either of the strings "i386" or "i486" for 32
bit x86 binaries. It now only returns "i386" (as documented).
This API can now return the following new values: "riscv32",
"riscv64", "riscv128", "s390",
"s390x".
- "guestfs_hivex_open"
- This now has an optional
"GUESTFS_HIVEX_OPEN_UNSAFE" flag which allows certain corrupted
Windows Registry hives to be opened. This feature requires hivex ≥
1.3.14 (Dawid Zamirski).
- "guestfs_list_partitions"
- This call now returns Linux software RAID partitions.
- "guestfs_part_to_dev"
- This call now correctly handles partition names which
include "p<N>" (Pino Toscano).
- "guestfs_set_label"
- This call can now change the labels of swap partitions
(Pino Toscano).
libmagic, the library part of the "file" command, is now required at
build time (previously optional).
GCC 7 is now supported.
"Silent rules" are now used for OCaml programs, Java bindings. To show
the full command line executed, add "V=1" on the make command line
(Pino Toscano).
Slow testing ("make check-slow") now covers: firstboot scripts in
Linux guests; v2v conversion of a selection of real Linux guests; the
virt-customize
--hostname and
--timezone settings; the
--root-password parameter; that the serial console works in
virt-builder guests.
Large generated C source files, eg. the list of commands found in
fish/cmds.c (and many more), have been split into smaller files to
speed parallel compilation.
"make maintainer-check-extra-dist" now checks that all generated files
are included in the tarball.
The tests no longer assume that "." is in Perl's @INC, as it is going
to be removed soon (Pino Toscano).
Debian hosts using UsrMerge are now supported (Pino Toscano).
Header files and C structs can now have internal documentation using the special
"/** ... */" comments.
"@VAR@" subtitutions in "./run" are now fully quoted. This
is necessary so that (eg) "./configure PYTHON=/some/path" works
robustly if "/some/path" contains characters that need to be quoted
(Hilko Bengen).
gperf ≥ 3.1 is now supported.
Kraxel's old edk2 builds can no longer be used for UEFI support. UEFI code is
now fully free software, so use the versions bundled with your Linux distro
instead.
Virt-p2v can now be compiled on RHEL 5 (2007-era) Linux with Gtk 2.10.
The generator and mllib "Common_utils" modules are now shared from the
same source file.
A considerable amount of common code has been moved into the
common
directory in the source and is now compiled only once. The mini-libraries
located under here are:
common/edit,
common/errnostring,
common/miniexpect,
common/options,
common/parallel,
common/progress,
common/protocol,
common/utils,
common/visit,
common/windows.
The directory containing the main library code has moved from
src
→
lib.
All tests written in shell script now use a common file of utility functions (
tests/test-functions.sh). There are several new utility functions,
mainly for skipping tests. Also these test scripts can now use autoconf-like
path variables like $abs_top_srcdir.
UEFI paths are now stored in the generator (
generator/uefi.ml).
The way the generator handles actions and procedure numbers was changed quite
substantially. See
generator/actions_*.ml and
generator/proc_nr.ml.
The gnulib "getprogname" module is now used everywhere when
needing/printing the program name (Pino Toscano).
perl/Guestfs.c is not translatable (Nikos Skalkotos).
Virt-builder templates moved from
builder/website to
builder/templates and there is now a single unified program which can
build any template.
All Windows registry utilities used by virt-customize and virt-v2v have been
moved to a common module called "Registry" under
mllib.
All POSIX bindings have been moved to a new module called "Unix_utils"
under
mllib.
Inspection, virt-customize and virt-v2v no longer recompute the Windows
"%systemroot%", "CurrentControlSet" or paths to the
"HKLM\SYSTEM" and "HKLM\SOFTWARE" hives in multiple
places. Instead these are all computed once (during inspection) and passed to
the other tools through various "guestfs_inspect_get_windows_*"
APIs.
"/dev/pts" is now available inside the appliance, so any tools we run
which require a pty will now work (Pino Toscano).
Most OCaml warnings have been fixed.
There is now a single common function for creating temporary files
("guestfs_int_make_temp_path") (Matteo Cafasso).
The $TERM environment variable is now validated before passing it through to the
appliance kernel command line.
Useless USB and memballoon devices are no longer created in the appliance (Laine
Stump).
On aarch64 we now use virtio-pci for the appliance. This is somewhat faster than
virtio-mmio.
Use of
srandom(3) and
random(3) has been minimized. In particular,
temporary filenames are no longer created based on randomness returned by
random(3), but
/dev/urandom is used instead.
- https://bugzilla.redhat.com/1425306
- typo error in virt-tail man page
- https://bugzilla.redhat.com/1418283
- virt-v2v: appliance runs out of memory running setfiles
command
- https://bugzilla.redhat.com/1417549
- /usr/bin/x86_64-linux-gnu-ld.bfd.real:
../common/progress/.libs/libprogress.a(libprogress_la-progress.o):
undefined reference to symbol 'UP@@NCURSES_TINFO_5.0.19991023'
- https://bugzilla.redhat.com/1417444
- *** No rule to make target '../perl/lib/Sys/Guestfs.c',
needed by 'libguestfs.pot'
- https://bugzilla.redhat.com/1416941
- compile of 1.34.3 fails with gperf 3.1
- https://bugzilla.redhat.com/1414682
- guestfs_canonical_device_name incorrectly returns /dev/sd0
for MD devices (/dev/md0)
- https://bugzilla.redhat.com/1414510
- guestfs_list_filesystems does not recognize ddf
partitions
- https://bugzilla.redhat.com/1409023
- [Debian] ldmtool not installed in the appliance
- https://bugzilla.redhat.com/1404287
- qemu-kvm cannot boot RHEL 7 kernel with TCG, hangs at
"Probing EDD (edd=off to disable)..."
- https://bugzilla.redhat.com/1404182
- RFE: virt-resize should support a URL as the outdisk
- https://bugzilla.redhat.com/1401474
- Importing VMs from VMware is failing with error
"Inspection field 'i_arch' was 'unknown'"
- https://bugzilla.redhat.com/1401320
- RFE: Increate virt-sysprep coverage a bit
- https://bugzilla.redhat.com/1400205
- Add --vdsm-compat=1.1 flag for VDSM
- https://bugzilla.redhat.com/1398070
- typo error in man page
- https://bugzilla.redhat.com/1392798
- secrets from libvirt domains are not read
- https://bugzilla.redhat.com/1390876
- "--machine-readable" info should be updated in
virt-v2v manual page
- https://bugzilla.redhat.com/1379289
- RFE: virt-p2v should support mnemonic operations
- https://bugzilla.redhat.com/1378022
- There is virt-v2v warning about <listen type='none'>
during converting a guest which has listen type='none' in XML
- https://bugzilla.redhat.com/1377081
- virt-p2v manual should update the new dialog
information
- https://bugzilla.redhat.com/1375157
- virt-v2v: -i ova: Permission denied when using libvirt and
running as root
- https://bugzilla.redhat.com/1374651
- Can't install qxl driver for display device in win7 guest
after converting to glance by virt-v2v
- https://bugzilla.redhat.com/1374405
- There is HTTP 404 error info when convert guest to glance
by virt-v2v
- https://bugzilla.redhat.com/1374232
- selinux relabel fails on RHEL 6.2 guests with
"libguestfs error: selinux_relabel: : Success"
- https://bugzilla.redhat.com/1372668
- Process status is not normal in windows guest after
converted from kvm to rhev by virt-v2v
- https://bugzilla.redhat.com/1372269
- Builder does not set hostname properly for Debian 8
(Jessie)
- https://bugzilla.redhat.com/1371843
- Improve OVA import compatibility
- https://bugzilla.redhat.com/1370424
- virt-manager coredump when vm with gluster image
exists
- https://bugzilla.redhat.com/1367839
- Cannot import VMs from Xen and VMware when using RHEL7.3
host.
- https://bugzilla.redhat.com/1367738
- Missing bash completion scripts for: virt-diff guestunmount
virt-copy-in virt-copy-out virt-customize virt-get-kernel
virt-p2v-make-disk virt-p2v-make-kickstart virt-tar-in virt-tar-out
virt-v2v-copy-to-local virt-win-reg
- https://bugzilla.redhat.com/1367615
- OVMF file which is built for rhel7.3 can't be used for
virt-v2v uefi conversion
- https://bugzilla.redhat.com/1366456
- Converting rhel7 host installed on RAID:warning: fstrim:
fstrim: /sysroot/: the discard operation is not supported
- https://bugzilla.redhat.com/1366049
- RFE: libvirt backend: support handling disks stored as
volume name in a pool
- https://bugzilla.redhat.com/1365005
- Guest name is incorrect if convert guest from disk image by
virt-v2v
- https://bugzilla.redhat.com/1362649
- RFE: virt-sysprep does not utilize libguestfs encryption
support
- https://bugzilla.redhat.com/1354507
- virt-v2v conversions from vCenter do not consistently obey
the proxy environment variables
- https://bugzilla.redhat.com/1168144
- warning: fstrim: fstrim: /sysroot/: FITRIM ioctl failed:
Operation not supported (ignored) when convert win2003 guest from xen
server
- https://bugzilla.redhat.com/1161019
- RFE: Only install RHEV-APT if virt-v2v -o rhev/-o vdsm
option is used
- https://bugzilla.redhat.com/1152369
- virt-v2v failed to convert RHEL 6.7 UEFI guest: no
grub1/grub-legacy or grub2 configuration file was found
- https://bugzilla.redhat.com/1141631
- [RFE] virt-v2v should support convert a guest to a dir-pool
with using pool's uuid
- https://bugzilla.redhat.com/1134878
- libvirt reports json "backing file" is
missing
- https://bugzilla.redhat.com/1019388
- firstboot scripts (virt-builder, virt-sysprep) don't work
for Debian 6 & 7 guests
- https://bugzilla.redhat.com/737600
- virt-v2v windows xp - machine dies BSOD - processr,sys -
workaround provided
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.