Note that this breaks compatibility with older versions, as the detach
code won't find unit files attached with older releases anymore. But
given that the portable service logic was not deemed stable so far, and
this was explicitly documented and enforced through portablectl's
installation to /usr/lib/systemd/ such a compat breakage should be fine.
Let's separate out the unit files copied from attached portable service
image files from the admin's own files. Let's introduce
/etc/systemd/system.attached/ + /run/systemd/system.attached/ for the
files of portable services, and leave /etc/systemd/system/ and
/run/systemd/system/ for the admin.
For non-`seat0` seats, attaching a graphics card to a seat can
lead to it getting created. This is because the graphics device
is a "master device" which means that device is a seat-defining
device.
`seat0` may get created, even before the graphics driver is loaded,
though. This is because the graphics driver is loaded
asynchronously at startup, and `seat0` is the primary seat of
system, associated with the system VTs.
When a graphics card is attached to a seat the `CanGraphical`
property on that seat will flip to `true`.
For seats that haven't been created yet (non-`seat0` seats), this
leads to `seat_start` getting called which ultimately causes the
seat to get serialized to `/run/systemd/seats`.
For `seat0`, which is already created, `seat_start` will return
immediately, which means the updated `CanGraphical` state will
never get written to `/run/systemd/seats`.
The end result is that clients querying `sd_seat_can_graphical`
won't get the correct answer for `seat0` in cases where the
graphics device takes a long time to load until some other peice
of seat state is updated.
This commit fixes the problem by calling `seat_save` explicitly
for already running seats at the time a graphics device is
attached.
We are not the ones receiving an error here, but the ones generating it,
hence we shouldn't show it with %m, that's just confusing, as it
suggests we received an error from some other call.
Previously, together with kill_dots true, patch like
".", "./.", ".//.//" would all return an empty string.
That is wrong. There must be one "." left to reference
the current directory.
Also, the comment with examples was wrong.
The behaviour described *was* observed on Fedora 28
(systemd-238-9.git0e0aa59), with and without SELinux. I don't actually
know why though! It contradicts my understanding of the code, including an
explicit comment in the code.
Testing in a VM upgraded to v239-792-g1327f272d, this behaviour goes away.
Test case:
# /etc/systemd/system/mount-test.service
[Service]
MountFlags=shared
Type=oneshot
ExecStart=/usr/bin/ls -l /proc/1/ns/mnt /proc/self/ns/mnt
ExecStart=/usr/bin/grep ext4 /proc/self/mountinfo
Weird old behaviour: new mount namespace but / is fully shared.
lrwxrwxrwx. 1 root root 0 Sep 14 11:18 /proc/1/ns/mnt -> mnt:[4026531840]
lrwxrwxrwx. 1 root root 0 Sep 14 11:48 /proc/self/ns/mnt ->
mnt:[4026532851]
968 967 253:0 / / rw,relatime shared:1 - ext4 /dev/mapper/alan_dell_2016...
Current behaviour: / is not fully shared
lrwxrwxrwx. 1 root root 0 Sep 14 11:39 /proc/1/ns/mnt -> mnt:[4026531840]
lrwxrwxrwx. 1 root root 0 Sep 14 11:41 /proc/self/ns/mnt ->
mnt:[4026532329]
591 558 8:3 / / rw,relatime shared:313 master:1 - ext4 /dev/sda3 rw,secl...
When a link is configured, wait until there is a Router Advertisement before
attempting to start DHCPv6. The intended DHCPv6 mode will be evaluated in
ndisc_router_handler() in networkd-ndisc.c.
Arguably, libsystemd-network is (still) entirely internal API.
However there is the aim of maybe exposing it as public API.
For that reason, it cannot include internal headers from
"src/basic/".
Note how files "src/systemd/sd-*.h" don't include any systemd
headers which don't themself have an "sd-" prefix.
Fixes: d89a400ed6
It is very useful for distributions to be able to set a primary
documentation URL in a standard location so that users and
applications on the system can identify it. For example, many
headless systems these days use the "Cockpit" admin console. It
would be ideal if we could specify this location directly in the
os-release file so that any application or service could have a
well-known location for retrieving this and displaying it
appropriately. Users could likewise examine /etc/os-release to
learn this location.
Related: https://github.com/cockpit-project/cockpit/issues/10198
Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>
This removes $RENAME_NOREPLACE_DIR and uses a command-line argument instead.
Logging is added, and tests are skipped if we get -EPERM or friends
(which happens on FAT and other filesystems).
Lennart Poettering