I got this issue on Debian sid right now.
I have this in my /etc/fstab:
tmpfs /tmp tmpfs
defaults,noatime,mode=1777,nosuid 0 0
tmpfs /var/spool/rsyslog tmpfs defaults,noatime,mode=1777
0 0
tmpfs /var/spool/anacron tmpfs defaults,noatime,mode=1777
0 0
tmpfs /var/spool/mqueue tmpfs defaults,noatime,mode=1777
0 0
tmpfs /var/spool/mqueue-client tmpfs defaults,noatime,mode=1777
0 0
tmpfs /var/cache tmpfs
defaults,noatime,nodiratime 0 0
tmpfs /var/cache/locate tmpfs
defaults,noatime,nodiratime 0 0
tmpfs /var/cache/ntpsec tmpfs
defaults,noatime,nodiratime 0 0
tmpfs /var/cache/apt-show-versions tmpfs
defaults,noatime,nodiratime 0 0
tmpfs /var/tmp tmpfs defaults,noatime
0 0
dic 10 11:27:43 KITT (apachectl)[564309]: apache2.service: Failed to set up
mount namespacing: /var/cache/apache2/mod_cache_disk: No such file or
directory
dic 10 11:27:43 KITT (apachectl)[564309]: apache2.service: Failed at step
NAMESPACE spawning /usr/sbin/apachectl: No such file or directory
The issue was fixed with:
mkdir -p /var/cache/apache2/mod_cache_disk
I have to see if the issue still persist at next reboot of the machine as I
am mount the /var/cache folder with tmpfs
