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README: fix context for CONFIG_DEVPTS_MULTIPLE_INSTANCES

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`newinstance` (and `ptmxmode`) options of devpts are _not_ used by
PrivateDevices=.  (/dev/pts is shared, similar to how /dev/shm and
/dev/mqueue are handled).  It is used by nspawn containers though.

Also CONFIG_DEVPTS_MULTIPLE_INSTANCES was removed in 4.7-rc2
eedf265aa0
and no longer needs to be set, so make that clearer to avoid confusion.
This commit is contained in:
Alan Jenkins 2018-01-15 16:55:11 +00:00
parent 98b1d2b8d9
commit 45a582d536
1 changed files with 5 additions and 3 deletions
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@ -69,11 +69,10 @@ REQUIREMENTS:
create additional symlinks in /dev/disk/ and /dev/tape: create additional symlinks in /dev/disk/ and /dev/tape:
CONFIG_BLK_DEV_BSG CONFIG_BLK_DEV_BSG
Required for PrivateNetwork= and PrivateDevices= in service units: Required for PrivateNetwork= in service units:
CONFIG_NET_NS CONFIG_NET_NS
CONFIG_DEVPTS_MULTIPLE_INSTANCES
Note that systemd-localed.service and other systemd units use Note that systemd-localed.service and other systemd units use
PrivateNetwork and PrivateDevices so this is effectively required. PrivateNetwork so this is effectively required.
Required for PrivateUsers= in service units: Required for PrivateUsers= in service units:
CONFIG_USER_NS CONFIG_USER_NS
@ -119,6 +118,9 @@ REQUIREMENTS:
isn't. The next best thing is to make this change through a modprobe.d isn't. The next best thing is to make this change through a modprobe.d
drop-in. This is shipped by default, see modprobe.d/systemd.conf. drop-in. This is shipped by default, see modprobe.d/systemd.conf.
Required for systemd-nspawn:
CONFIG_DEVPTS_MULTIPLE_INSTANCES or Linux kernel >= 4.7
Note that kernel auditing is broken when used with systemd's Note that kernel auditing is broken when used with systemd's
container code. When using systemd in conjunction with container code. When using systemd in conjunction with
containers, please make sure to either turn off auditing at containers, please make sure to either turn off auditing at