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NEWS: add a bunch of entries for v253
During the call today we agreed to work towards -rc1 in January. Nevertheless, I already started writing this up and I'll push it so it doesn't get lost. I didn't include all the changes to systemd-repart, because those are still in flux.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
parent
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commit
3b288a2d2b
156
NEWS
156
NEWS
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@ -2,6 +2,62 @@ systemd System and Service Manager
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CHANGES WITH 253 in spe:
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Deprecations and incompatible changes
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* systemctl will now warn when invoked without /proc mounted (e.g. when
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invoked after chroot into an image without the API mount points like
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/proc being set up.) Operation in such an environment is not fully
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supported.
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* 'udevadm hwdb' subcommand is deprecated and will emit a warning.
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systemd-hwdb (added in 2014) should be used instead.
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* 'bootctl --json' now outputs well-formed JSON, instead of a stream
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of newline-separated JSON objects.
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* Udev rules in 60-evdev.rules have been changed to load hwdb properties
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for all modalias patterns. Previously only the first matching pattern
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was used. This could change what properties are assigned if the user
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has more and less specific patterns that could match the same device,
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but it is expected that the change will have no effect for most users.
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New components:
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* A tool to build, measure, and sign Unified Kernel Images (UKIs) has
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been added. This replaces functionality provided by 'dracut --uefi'
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and extends it with automatic calculation of offsets, insertion of
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signed PCR policies generated by systemd-measure, support for initrd
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concatenation, signing of the embedded Linux image and the combined
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image with sbsign, and heuristics to autodetect the kernel uname and
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verify the splash image.
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Changes in systemd:
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* Initrd environments which are not on a temporary file system (for
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example an overlayfs combination) are now supported. Systemd will only
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skip removal of the files in the initrd if it doesn't detect a
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temporary file system.
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* New MemoryZSwapMax= option has been added to configure
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memory.zswap.max cgroup properties (the maximum amount of zswap used).
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* Scope units now support OOMPolicy=. Login session scopes default to
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OOMPolicy=continue, allowing login scopes to survive the oom killer
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terminating some processes in the scope.
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* systemd-fstab-generator now supports x-systemd.makefs option for
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/sysroot (in the initrd).
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Changes in udev:
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* The new net naming scheme "v253" has been introduced. In the new
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scheme, ID_NET_NAME_PATH is also set for USB devices not connected via
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a PCI bus. This extends the converage of predictable interface names
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in some embedded systems.
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The "amba" bus path is now included in ID_NET_NAME_PATH, resulting in
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a more informative path on some embedded systems.
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Changes in sd-boot, bootctl, and the Boot Loader Specification:
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* systemd-boot now passes its random seed directly to the kernel's RNG
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@ -14,7 +70,7 @@ CHANGES WITH 253 in spe:
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protocol or a prior seed in LINUX_EFI_RANDOM_SEED_TABLE_GUID from a
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preceding bootloader.
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* The random seed stored in ESP is now refreshed whenever
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* The random seed stored in the ESP is now refreshed whenever
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systemd-random-seed.service is run.
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* systemd-boot handles various seed inputs using a domain- and
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@ -32,10 +88,104 @@ CHANGES WITH 253 in spe:
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virtualized ones, and is activated in the case that the system token
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is missing from either sd-boot and sd-stub booted systems.
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* systemd-boot now supports being loaded not from the ESP, for example
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for direct kernel boot under QEMU or when embedded into the firmware.
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Changes in kernel-install:
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* A new "installation layout" can be configured as layout=uki. With this
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setting, a Boot Loader Specification Type#1 entry will not be created.
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Instead, a new kernel-install plugin 90-uki-copy.install will copy any
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.efi files from the staging area into the boot partition. A plugin to
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generate the UKI .efi file must be provided separately.
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Changes in systemctl:
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* systemctl reboot has dropped support for accepting a positional argument
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as the argument to reboot(2) syscall. Please use --reboot-argument instead.
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* 'systemctl reboot' has dropped support for accepting a positional
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argument as the argument to the reboot(2) syscall. Please use the
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--reboot-argument option instead.
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* 'systemctl disable' will now warn when called on units without install
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information. A new --no-warn option has been added that silences this
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warning.
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* 'systemctl kexec' now supports XEN.
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Changes in systemd-networkd and related tools:
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* The RouteMetric= option (for DHCPv4, DHCPv6, and IPv6 advertised
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routes) now accepts three values, for high, medium, and low preference
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of the router (which can be set with the RouterPreference=) setting.
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* systemd-networkd-wait-online now supports alternative interface names.
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Changes in systemd-dissect:
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* systemd-dissect gained a new option --list, to print the paths fo the
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files and directories in the image.
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* systemd-dissect gained a new option --mtree, to generate output
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compatible with BSD mtree(5).
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* systemd-dissect gained a new option --with, to execute a command in
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the image temporarily mounted.
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* systemd-dissect gained a new option --discover, to search for
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Discoverable Disk Images (DDIs) in well-known directories. This will
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list machine, portable service and system extension disk images.
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* systemd-dissect now understands 2nd stage initrd images stored as a
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Discoverable Disk Image (DDI).
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Changes in systemd-repart:
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* systemd-repart gained new options --include-partitions and
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--exclude-partitions to filter operation on partitions by type UUID.
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This allows systemd-repart to be used to build images in which the
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type of one partition is set based on the contents of another
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partition (for example when the boot partition shall include a verity
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hash of the root partition).
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* systemd-repart now supports erofs (a read-only file system similar to
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squashfs).
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Changes in systemd-homed:
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* systemd-homed gained support for luksPbkdfForceIterations (the
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intended number of iterations for the PBKDF operation on LUKS).
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Changes in systemd-homenamed:
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* systemd-homed now exports the contents of
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/sys/class/dmi/id/bios_vendor and /sys/class/dmi/id/bios_date via two
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new D-Bus properties: FirmwareVendor and FirmwareDate. This allows
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unprivileged code to access those values.
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Changes in libsystemd and shared code:
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* sd-bus gained new convenience functions sd_bus_emit_signal_to(),
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sd_bus_emit_signal_tov(), and sd_bus_message_new_signal_to().
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* Detection of chroot environments now works if /proc/ is not mounted.
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This affects systemd-detect-virt --chroot, but also means that systemd
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tools will silently skip various operations in such an environment.
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* "Lockheed Matrin Hardened Security for Intel Processors" (HS SRE)
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virtualization is now detected.
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Changes in the build system:
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* Standalone variant of systemd-repart is built (if -Dstandalone=true).
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* systemd-ac-power has been moved to /usr/bin/, to, for example, allow
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scripts to conditionalize execution on AC power supply.
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Changes in the documentation:
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* Specifications that are not closely tied to systemd have moved to
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https://uapi-group.org/specifications/: the Boot Loader Spefication
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and the Discoverable Partitions Specification.
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CHANGES WITH 252 🎃:
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@ -233,7 +233,7 @@
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<varlistentry>
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<term><option>--discover</option></term>
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<listitem><para>Show a list of DDIs in well known directories. This will show machine, portable
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<listitem><para>Show a list of DDIs in well-known directories. This will show machine, portable
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service and system extension disk images in the usual directories
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<filename>/usr/lib/machines/</filename>, <filename>/usr/lib/portables/</filename>,
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<filename>/usr/lib/extensions/</filename>, <filename>/var/lib/machines/</filename>,
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