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NEWS: adjust grammar and other small changes

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Zbigniew Jędrzejewski-Szmek 2021-06-04 10:25:42 +02:00
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commit 287079696c
1 changed files with 104 additions and 107 deletions
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NEWS
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@ -5,9 +5,9 @@ CHANGES WITH 249 in spe:
* When operating on disk images via the --image= switch of various * When operating on disk images via the --image= switch of various
tools (such as systemd-nspawn or systemd-dissect), and multiple tools (such as systemd-nspawn or systemd-dissect), and multiple
suitable root or /usr/ partitions exist in the image, then a simple suitable root or /usr/ partitions exist in the image, then a simple
strverscmp() inspired comparison is done on the GPT partition label, comparison inspired by strverscmp() is done on the GPT partition
and the newest partition picked. This permits a simple and generic label, and the newest partition is picked. This permits a simple and
whole-file-system A/B update logic where new operating system generic whole-file-system A/B update logic where new operating system
versions are dropped into partitions whose label is then updated with versions are dropped into partitions whose label is then updated with
a matching version identifier. a matching version identifier.
@ -44,31 +44,31 @@ CHANGES WITH 249 in spe:
* The systemd-machine-id-setup tool now supports a --image= switch for * The systemd-machine-id-setup tool now supports a --image= switch for
provisioning a machine ID file into an OS disk image, similar to how provisioning a machine ID file into an OS disk image, similar to how
--root= operates on an OS file tree. This matches the existing switch --root= operates on an OS file tree. This matches the existing switch
of the same name to the systemd-tmpfiles, systemd-firstboot or of the same name for systemd-tmpfiles, systemd-firstboot, and
systemd-sysusers tools. systemd-sysusers tools.
* Similar, systemd-repart gained support for a --image= switch, too. In * Similarly, systemd-repart gained support for the --image= switch too.
combination with the existing --size= makes the tool particularly In combination with the existing --size= option, this makes the tool
useful for easily growing disk images in a single command invocation, particularly useful for easily growing disk images in a single
following the declarative rules included in the image itself. invocation, following the declarative rules included in the image
itself.
* systemd-repart's partition configuration files gained support for a * systemd-repart's partition configuration files gained support for a
new switch MakeDirectories= which may be used to create arbitrary new switch MakeDirectories= which may be used to create arbitrary
directories inside file systems that are created, before registering directories inside file systems that are created, before registering
them in the partition table. This is useful in particular if root them in the partition table. This is useful in particular for root
partitions are created that way to create mount point directories for partitions to create mount point directories for other partitions
other partitions included in the image. For example, a disk image included in the image. For example, a disk image that contains a
that is created to contain a /home/ and a /var/ partition in addition root, /home/, and /var/ partitions, may set MakeDirectories=yes to
to a root partition may MakeDirectories= to create /home/ and /var/ create /home/ and /var/ as empty directories in the root file system
as empty directories in the root file system on creation so that the on its creation, so that the resulting image can mounted immediately,
resulting image can mounted immediately, even in read-only mode. even in read-only mode.
* systemd-repart's CopyBlocks= setting gained support for a special * systemd-repart's CopyBlocks= setting gained support for the special
value "auto". If used a suitable, matching partition on the booted OS value "auto". If used, a suitable matching partition on the booted OS
is found as source to copy blocks from. This is useful for is found as source to copy blocks from. This is useful when
implementing replicating installers, that are booted from one medium implementing replicating installers, that are booted from one medium
and then shall stream their own root partition onto the target and then stream their own root partition onto the target medium.
medium.
* systemd-repart's partition configuration files gained support for a * systemd-repart's partition configuration files gained support for a
Flags= and a ReadOnly= setting, allowing control of the GPT partition Flags= and a ReadOnly= setting, allowing control of the GPT partition
@ -76,40 +76,40 @@ CHANGES WITH 249 in spe:
created partitions as read-only from the start. created partitions as read-only from the start.
* The /etc/os-release file has been extended with two new (optional) * The /etc/os-release file has been extended with two new (optional)
variables IMAGE_VERSION= and IMAGE_ID=, for carrying identification variables IMAGE_VERSION= and IMAGE_ID=, carrying identity and version
and versioning information for OS images that are updated information for OS images that are updated comprehensively and
consistently, comprehensively and atomically as one image. The two atomically as one image. Two new specifiers %M, %A now resolve to
new specifiers %M, %A now resolve to these two fields in the various these two fields in the various configuration options that resolve
configuration options that resolve specifiers. specifiers.
* portablectl gained a new switch --extension= for enabling portable * portablectl gained a new switch --extension= for enabling portable
service images with extensions that follow the extension image service images with extensions that follow the extension image
concept introduced with v248. concept introduced with v248.
* systemd-coredump will now extract ELF build-id information from * systemd-coredump will now extract ELF build-id information from
processes dumping core and include it in the coredump processes dumping core and include it in the coredump report.
report. Moreover, if will look for ELF .note.package sections that Moreover, it will look for ELF .note.package sections with
may carry distribution packaging meta-information about the crashing distribution packaging meta-information about the crashing process.
process. This is useful to directly embed the RPM or Debian (or any This is useful to directly embed the rpm or deb (or any other)
other) package name and version in the ELF files where they originate package name and version in ELF files, making it easy to match
from, making it easy to match up coredump reports with the software coredump reports with the specific package for which the software was
versions they were found it. This is particular useful on compiled. This is particularly useful on environments with ELF files
environments with ELF files form multiple vendors, different from multiple vendors, different distributions and versions, as is
distributions and versions, as it is common today, in particular in a common today in our containerized and sand-boxed world. For further
containerized and sand-boxed world. For further information, see: information, see:
https://systemd.io/COREDUMP_PACKAGE_METADATA https://systemd.io/COREDUMP_PACKAGE_METADATA
* A new udev hwdb database has been added for FireWire devices (IEEE * A new udev hardware database has been added for FireWire devices
1394). (IEEE 1394).
* sd-bus' sd_bus_is_ready() and sd_bus_is_open() calls now accept a * sd-bus' sd_bus_is_ready() and sd_bus_is_open() calls now accept a
NULL bus object, for which they will return false. Or in other words, NULL bus object, for which they will return false. Or in other words,
an unallocated bus connection is neither ready nor open. an unallocated bus connection is neither ready nor open.
* The sd-device API acquired a new API function * The sd-device API acquired a new API function
sd_device_get_usec_initialized() that returns the monotonic timestamp sd_device_get_usec_initialized() that returns the monotonic time when
when a udev device appeared in the database first. the udev device first appeared in the database.
* sd-device gained a new APIs sd_device_trigger_with_uuid() and * sd-device gained a new APIs sd_device_trigger_with_uuid() and
sd_device_get_trigger_uuid(). The former is similar to sd_device_get_trigger_uuid(). The former is similar to
@ -168,13 +168,14 @@ CHANGES WITH 249 in spe:
[NextHop] entries, via the new Group= setting. [NextHop] entries, via the new Group= setting.
* The DHCP server logic configured in .network files gained a new * The DHCP server logic configured in .network files gained a new
setting RelayTarget= that turns the server into a DHCP server setting RelayTarget= that turns the server into a DHCP server relay.
relay. The RelayAgentCircuitId= and RelayAgentRemoteId= settings may The RelayAgentCircuitId= and RelayAgentRemoteId= settings may be used
be used to further tweak the DHCP relay behaviour. to further tweak the DHCP relay behaviour.
* The DHCP server logic also gained a new setting ServerAddress= in * The DHCP server logic also gained a new ServerAddress= setting in
.network files for explicitly specifying the server IP address to .network files that explicitly specifies the server IP address to
use. If not used, the address is determined automatically, as before. use. If not specified, the address is determined automatically, as
before.
* The DHCP server logic in systemd-networkd gained support for static * The DHCP server logic in systemd-networkd gained support for static
DHCP leases, configurable via the [DHCPServerStaticLease] DHCP leases, configurable via the [DHCPServerStaticLease]
@ -187,53 +188,51 @@ CHANGES WITH 249 in spe:
* systemd-fstab-generator and systemd-repart have been updated to * systemd-fstab-generator and systemd-repart have been updated to
support booting from disks that carry only a /usr/ partition but no support booting from disks that carry only a /usr/ partition but no
root partition yet, but where systemd-repart can add them in on first root partition yet, and where systemd-repart can add it in on the
boot. This is useful for implementing systems that ship with a single first boot. This is useful for implementing systems that ship with a
/usr/ file system and whose root file system shall be set up on a single /usr/ file system, and whose root file system shall be set up
LUKS encrypted volume whose key is generated locally (and possibly and formatted on a LUKS-encrypted volume whose key is generated
enrolled in TPM), and which is set up and formatted during first locally (and possibly enrolled in the TPM) during the first boot.
boot.
* The [Address] section of .network files now accepts a new * The [Address] section of .network files now accepts a new
RouteMetric= setting that configures the routing metric to use for RouteMetric= setting that configures the routing metric to use for
the prefix route created as effect of the address the prefix route created as effect of the address configuration.
configuration. Similar, the [DHCPv6PrefixDelegation] and [IPv6Prefix] Similarly, the [DHCPv6PrefixDelegation] and [IPv6Prefix] sections
sections gained matching settings for their prefix routes. (The gained matching settings for their prefix routes. (The option of the
option of the same name of the [DHCPv6] section is moved to same name in the [DHCPv6] section is moved to [IPv6AcceptRA], since
[IPv6AcceptRA], since it conceptually belongs there; the old option it conceptually belongs there; the old option is still understood for
is still understood for compatibility.) compatibility.)
* The DHCPv6 IAID and DUID are now explicitly configurable in .network * The DHCPv6 IAID and DUID are now explicitly configurable in .network
files. files.
* A new udev property ID_NET_DHCP_BROADCAST on network interface * A new udev property ID_NET_DHCP_BROADCAST on network interface
devices is not honoured by systemd-networkd, that controls whether to devices is now honoured by systemd-networkd, controlling whether to
issue DHCP offers via broadcasting. This is used to ensure that s390 issue DHCP offers via broadcasting. This is used to ensure that s390
layer 3 network interfaces work out-of-the-box with systemd-networkd. layer 3 network interfaces work out-of-the-box with systemd-networkd.
* nss-myhostname and systemd-resolved will now synthesize address * nss-myhostname and systemd-resolved will now synthesize address
records for a new special hostname "_outbound". The name will always records for a new special hostname "_outbound". The name will always
resolve to the local IP addresses most likely used for outbound resolve to the local IP addresses most likely used for outbound
connections towards the default route. On multi-homed hosts this is connections towards the default routes. On multi-homed hosts this is
useful to have a stable handle referring to "the" local IP address useful to have a stable handle referring to "the" local IP address
that matters most, to the point where this is defined. that matters most, to the point where this is defined.
* The Discoverable Partition Specification has been updated with a new * The Discoverable Partition Specification has been updated with a new
GPT partition flag defined its partition types: a "growfs" GPT partition flag "growsfs" defined for its partition types.
flag. Whenever partitions with this flag set are automatically Whenever partitions with this flag set are automatically mounted
mounted (i.e. via systemd-gpt-auto-generator or the --image= switch (i.e. via systemd-gpt-auto-generator or the --image= switch of
of systemd-nspawn or other tools; and as opposed to explicit mounting systemd-nspawn or other tools; and as opposed to explicit mounting
via /etc/fstab), the file system within the partition is via /etc/fstab), the file system within the partition is
automatically grown to the full size of the partition should it be automatically grown to the full size of the partition. If the file
smaller. If the file system size already matches the partition size system size already matches the partition size this flag has no
this flag has no effect. Previously, this functionality has been effect. Previously, this functionality has been available via the
available via the explicit x-systemd.growfs mount option, and this explicit x-systemd.growfs mount option, and this new flag extends
new flag extends this to automatically discovered mounts. A new this to automatically discovered mounts. A new GrowFileSystem=
GrowFileSystem= setting has been added to systemd-repart drop-in setting has been added to systemd-repart drop-in files that allows
files that allows configuring this partition flag. This new flag configuring this partition flag. This new flag defaults to on for
defaults to on for partitions automatically created by partitions automatically created by systemd-repart, except if they
systemd-repart, except if they are marked read-only. See the are marked read-only. See the specification for further details:
specification for further details:
https://systemd.io/DISCOVERABLE_PARTITIONS https://systemd.io/DISCOVERABLE_PARTITIONS
@ -250,27 +249,27 @@ CHANGES WITH 249 in spe:
sockets created by the service may be bound to. This is implemented sockets created by the service may be bound to. This is implemented
via BPF. via BPF.
* A new ConditionFirmware= condition type has been added to unit * A new ConditionFirmware= condition type has been added to unit files.
files. It may be used to detect certain firmware features. At the It may be used to detect certain firmware features. At the moment it
moment it may check whether running on an UEFI system, a device.tree may check whether running on an UEFI system, a device.tree system, or
system or if the system is compatible with some specified device-tree if the system is compatible with some specified device-tree feature.
feature.
* hostnamed gained a new Describe() D-Bus method that returns a JSON * hostnamed gained a new Describe() D-Bus method that returns a JSON
serialization of the host data it exposes. This is exposed via serialization of the host data it exposes. This is exposed via
"hostnamectl --json=" to acquire a host identity description in "hostnamectl --json=" to acquire a host identity description in JSON.
JSON. It's our intention to add a similar concept to most services It's our intention to add a similar features to most services and
and objects systemd manages, in order to simplify integration with objects systemd manages, in order to simplify integration with
program code the consumes JSON. program code that can consume JSON.
* Similar, networkd gained a Describe() method on its Manager and Link * Similarly, networkd gained a Describe() method on its Manager and
bus objects. This is exposed via "networkctl --json=". Link bus objects. This is exposed via "networkctl --json=".
* hostnamectl's various set-xyz verbs (e.g. "hostnamectl set-hostname") * hostnamectl's various "get-xyz"/"set-xyz" verb pairs
have been renamed to just xyz (e.g. "hostnamectl hostname") and may (e.g. "hostnamectl get-hostname", "hostnamectl "set-hostname") have
now be used to print the indicated data in terse form, instead of been replaced by a single "xyz" verb (e.g. "hostnamectl hostname")
only setting it. The old names continue to be supported for that is used both to get the value (when no argument is given), and
compatibility. to set the value (when an argument is specified). The old names
continue to be supported for compatibility.
* systemd-detect-virt and ConditionVirtualization= are now able to * systemd-detect-virt and ConditionVirtualization= are now able to
correctly identify Amazon EC2 environments. correctly identify Amazon EC2 environments.
@ -283,8 +282,8 @@ CHANGES WITH 249 in spe:
* bootctl gained support for a new --make-machine-id-directory= switch * bootctl gained support for a new --make-machine-id-directory= switch
that allows precise control on whether to create the top-level that allows precise control on whether to create the top-level
per-machine directory in the boot partition that typically contain per-machine directory in the boot partition that typically contains
Type #1 boot loader entries. Type 1 boot loader entries.
* During build SBAT data to include in the systemd-boot EFI PE binaries * During build SBAT data to include in the systemd-boot EFI PE binaries
may be specified now. may be specified now.
@ -385,21 +384,20 @@ CHANGES WITH 249 in spe:
* A new dependency type OnSuccess= has been added (plus the reverse * A new dependency type OnSuccess= has been added (plus the reverse
dependency OnSuccessOf=, which cannot be configured directly, but dependency OnSuccessOf=, which cannot be configured directly, but
exists only as effect of the reverse OnSuccess=). It's similar to exists only as effect of the reverse OnSuccess=). It is similar to
OnFailure= but triggers in the opposite case: when a service exits OnFailure=, but triggers in the opposite case: when a service exits
cleanly. This allows "chaining up" of services where one or more cleanly. This allows "chaining up" of services where one or more
services are started once another service successfully completed its services are started once another service has successfully completed.
runtime.
* A new dependency type Upholds= has been added (plus the reverse * A new dependency type Upholds= has been added (plus the reverse
dependency UpheldBy=, which cannot be configured directly, but dependency UpheldBy=, which cannot be configured directly, but exists
exists only as effect of the reverse Upholds=). This dependency type only as effect of Upholds=). This dependency type is a stronger form
is a stronger form of Wants=: if a unit has an UpHolds= dependency on of Wants=: if a unit has an UpHolds= dependency on some other unit
some other unit and the former is active then the latter is started and the former is active then the latter is started whenever it is
whenever it is found inactive (and no job queued for it). This is an found inactive (and no job is queued for it). This is an alternative
alternative to Restart= inside service units, but less configurable, to Restart= inside service units, but less configurable, and the
and the request to uphold a unit is not encoded in the unit itself request to uphold a unit is not encoded in the unit itself but in
but in another unit that intends to uphold it. another unit that intends to uphold it.
* The systemd-ask-password tool now also supports reading passwords * The systemd-ask-password tool now also supports reading passwords
from the credentials subsystem, via the new --credential= switch. from the credentials subsystem, via the new --credential= switch.
@ -409,10 +407,9 @@ CHANGES WITH 249 in spe:
shown in the password prompt on suitable TTYs. shown in the password prompt on suitable TTYs.
* The --echo switch of systemd-ask-password now optionally takes a * The --echo switch of systemd-ask-password now optionally takes a
parameter that controls whether to echo the typed in password back parameter that controls character echo. It may either show asterisks
while typing in. It may either show asterisks as echo (default, as (default, as before), turn echo off entirely, or echo the typed
before), turn the echo off entirely, or echo the types characters characters literally.
literally.
* New documentation has been added that describes the organization of * New documentation has been added that describes the organization of
the systemd source code tree: the systemd source code tree: