The flag takes "auto" or "import" or a boolean value.
"auto" causes systemd-sysext to make a decision about mutability of the merged
hierarchy based on existence of the upper directory in
`/var/lib/extensions.mutable/${hierarchy}`.
"import" causes the existing upper dir to be actually used as another lower
dir, which results in read-only merged hierarchy.
True value makes systemd-sysext to create the upper dir if it's missing and to
make the merged hierarchy mutable.
False value makes systemd-sysext to ignore upper dir completely, and create a
read-only merged hierarchy.
The default is false value.
systemd-sysext will check if /var/lib/extensions.mutable/${hierarchy} exists
and use it as an overlayfs upperdir for storing writes. This allows having
mutable hierarchy after merging the extension images.
The implementation is following a proposed update to the Extension Images
specification at https://github.com/uapi-group/specifications/pull/78.
Divide the merge_hierarchy function into code that:
- determines the lower directories for overlayfs
- determination of lower directories was further split into top, middle and
bottom directories:
- bottom - possibly the hierarchy itself
- middle - hierarchies from extensions
- top - metadata directory
- mounts the overlayfs using determined directories
- writes information to the metadata directory
- makes the merged hierarchy read-only
The follow-up commit will refactor some code in systemd-sysext, so add some
tests to make sure that things didn't break. The tests will be later extended
with cases for new features added.
I have a large initrd (built with mkosi-initrd) and the test-ukify takes 30 s.
Let's use the usual approach of skipping the slowests tests.
(pytest has marks, and it would be nicer to mark tests with pytest.mark.slow,
and then use "-m 'not slow'" in the meson test invocation. But markers must be
pre-registered, otherwise pytest emits a warning. There are a few ways to
register markers, but they all require "project configuration", but because of
how we invoke pytest, this is hard to do. So let's just use an environment
variable.)
Allow to set the broadcast queueing threshold
on macvlan devices. This controls which multicast packets will be
processed in a workqueue instead of inline.
The Xbox Wireless Headset does not get assigned a sound form factor
when connected via the dongle using the `xone` driver.
Add USB IDs for the old & new dongle and built-in variants.
Since we use varargs for sd_message_append() we need to make sure the
parameters we pass are actually 64bit wide, if "t" is used. Hence cast
appropriately if necessary.
I went through the whole tree, and in most cases we got it right, but
there are some cases we missed so far.
Inspired by: #31420
This renames a few of the switches vmspawn takes, such as --qemu-mem=
and --qemu-smp= to names without the "qemu" moniker and uses less
cryptic names (i.e. --ram= and --cpus=).
I think it's a bit unsystematic that so far we use the "qemu" prefix for
some options but not for others. At least I could not figure out a
system when we use it and when we don't. Hence let's clean it up and
just use simpler names without suffix.
After all we might want to plug other hypervisors behind vmspawn one
day, hence I think there's value in sticking to generic names for these
switches that allow us to switch out backends easily. In particular for
--ram= and --cpus= which are probably the most fundamental of VM settings
there are.
The old switches are support for compat, but not advertised in man page
or --help text anymore.
I left "--qemu-gui" under its current name, since it fundamentally is a
a qemu concept, exposing a qemu specific graphical UI.
The 1-based VT indexes are what people usually expect, since the primary
name of VTs uses them (i.e. /dev/tty1, /dev/tty2, …). Hence, let's
always use 1-based VT indexes, and early on convert 0-based VT indexes
to minimize confusion.
If specified we'll not try to find a free V, but instead just output
directly to the specified TTY. This is particularly useful for
debugging, as it means "systemd-bsod --tty=/dev/tty" just works.
Krzesimir Nowak
Luca Boccassi
Zbigniew Jędrzejewski-Szmek
hulkoba
Mariano Giménez
Yu Watanabe
Susant Sahani
Mike Yuan
medusalix
Lennart Poettering
Frantisek Sumsal