Does someone have a working tmp on tmpfs via
systemctl enable tmp.mount
under CentOS8/RHEL8? This seems to work straight in EL7 ...
# LANG=C systemctl enable tmp.mount The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units). This means they are not meant to be enabled using systemctl. Possible reasons for having this kind of units are: 1) A unit may be statically enabled by being symlinked from another unit's .wants/ or .requires/ directory. 2) A unit's purpose may be to act as a helper for some other unit which has a requirement dependency on it. 3) A unit may be started when needed via activation (socket, path, timer, D-Bus, udev, scripted systemctl call, ...). 4) In case of template units, the unit is meant to be enabled with some instance name specified.
-- Leon
On 10/21/19 3:42 PM, Leon Fauster via CentOS wrote:
Does someone have a working tmp on tmpfs via
systemctl enable tmp.mount
under CentOS8/RHEL8? This seems to work straight in EL7 ...
# LANG=C systemctl enable tmp.mount The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units).
Looks like a known issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1667065
Am 22.10.19 um 04:52 schrieb Orion Poplawski:
On 10/21/19 3:42 PM, Leon Fauster via CentOS wrote:
Does someone have a working tmp on tmpfs via
systemctl enable tmp.mount
under CentOS8/RHEL8? This seems to work straight in EL7 ...
# LANG=C systemctl enable tmp.mount The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units).
Looks like a known issue:
It works in EL7 and F30. In EL8 it seems to be intentional :
$ rpm -q --changelog systemd |grep tmp.mount
- unit: don't add Requires for tmp.mount (#1619292)
$ grep -E 'tmpfs|tmp.mount' systemd.spec |grep -v devpts
Patch0004: 0004-Avoid-tmp-being-mounted-as-tmpfs-without-the-user-s-.patch Patch0059: 0059-unit-don-t-add-Requires-for-tmp.mount.patch # No tmp-on-tmpfs by default in RHEL. bz#876122 bz#1578772 rm -f %{buildroot}%{_prefix}/lib/systemd/system/local-fs.target.wants/tmp.mount - unit: don't add Requires for tmp.mount (#1619292) - avoid /tmp being mounted as tmpfs without the user's will (#1578772) - do not mount /tmp as tmpfs (#1578772) - Enable /var/run and /var/lock on tmpfs
The "remove" stanza leads to the missing "WantedBy".
Unfortunately all bz# are private ... so why they remove this functionality? We then at least known what impact it has when enabled.
-- Leon
On 10/22/19 7:04 AM, Leon Fauster via CentOS wrote:
Am 22.10.19 um 04:52 schrieb Orion Poplawski:
On 10/21/19 3:42 PM, Leon Fauster via CentOS wrote:
Does someone have a working tmp on tmpfs via
systemctl enable tmp.mount
under CentOS8/RHEL8? This seems to work straight in EL7 ...
# LANG=C systemctl enable tmp.mount The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units).
Looks like a known issue:
It works in EL7 and F30. In EL8 it seems to be intentional :
$ rpm -q --changelog systemd |grep tmp.mount
- unit: don't add Requires for tmp.mount (#1619292)
$ grep -E 'tmpfs|tmp.mount' systemd.spec |grep -v devpts
Patch0004: 0004-Avoid-tmp-being-mounted-as-tmpfs-without-the-user-s-.patch Patch0059: 0059-unit-don-t-add-Requires-for-tmp.mount.patch # No tmp-on-tmpfs by default in RHEL. bz#876122 bz#1578772 rm -f %{buildroot}%{_prefix}/lib/systemd/system/local-fs.target.wants/tmp.mount
- unit: don't add Requires for tmp.mount (#1619292)
- avoid /tmp being mounted as tmpfs without the user's will (#1578772)
- do not mount /tmp as tmpfs (#1578772)
- Enable /var/run and /var/lock on tmpfs
The "remove" stanza leads to the missing "WantedBy".
Unfortunately all bz# are private ... so why they remove this functionality? We then at least known what impact it has when enabled.
I'm not quite sure why you don't appear to have read the bug I pointed to. It has been fix in git (c8-beta branch) and will either be out with 8.1 or with an errata earlier if it is judged to be worth it.
Am 22.10.19 um 16:31 schrieb Orion Poplawski:
On 10/22/19 7:04 AM, Leon Fauster via CentOS wrote:
Am 22.10.19 um 04:52 schrieb Orion Poplawski:
On 10/21/19 3:42 PM, Leon Fauster via CentOS wrote:
Does someone have a working tmp on tmpfs via
systemctl enable tmp.mount
under CentOS8/RHEL8? This seems to work straight in EL7 ...
# LANG=C systemctl enable tmp.mount The unit files have no installation config (WantedBy, RequiredBy, Also, Alias settings in the [Install] section, and DefaultInstance for template units).
Looks like a known issue:
It works in EL7 and F30. In EL8 it seems to be intentional :
$ rpm -q --changelog systemd |grep tmp.mount
- unit: don't add Requires for tmp.mount (#1619292)
$ grep -E 'tmpfs|tmp.mount' systemd.spec |grep -v devpts
Patch0004: 0004-Avoid-tmp-being-mounted-as-tmpfs-without-the-user-s-.patch Patch0059: 0059-unit-don-t-add-Requires-for-tmp.mount.patch # No tmp-on-tmpfs by default in RHEL. bz#876122 bz#1578772 rm -f %{buildroot}%{_prefix}/lib/systemd/system/local-fs.target.wants/tmp.mount
- unit: don't add Requires for tmp.mount (#1619292)
- avoid /tmp being mounted as tmpfs without the user's will (#1578772)
- do not mount /tmp as tmpfs (#1578772)
- Enable /var/run and /var/lock on tmpfs
The "remove" stanza leads to the missing "WantedBy".
Unfortunately all bz# are private ... so why they remove this functionality? We then at least known what impact it has when enabled.
I'm not quite sure why you don't appear to have read the bug I pointed to. It has been fix in git (c8-beta branch) and will either be out with 8.1 or with an errata earlier if it is judged to be worth it.
Recognition is stronger then recall :-). There was no direct c8-beta evidence and I was not aware of RH's public systemd branch, but I see it now. For the archives:
https://git.centos.org/rpms/systemd/tree/e52536df65a972e6f8ab59b15659f7681b9...
-- Leon
-
Leon Fauster -
Orion Poplawski