Bug#968787: No printer can be installed in cups
Hello Bernhard,
> From which debian version did you upgrade to Debian 10?
As i remember this installation was upgraded from Debian 9.
> Did the upgrade went through successfully?
Yes. It is possible to work with this installation.
But the sound and many details are not working so stable as Debian 8.
So when i want to work stable i boot Debian 8 and not Debian 10.
> Is journalctl -f giving some output, when started before
> trying to access localhost:631 ?
Yes. But the interesting thing is the output when trying to use cups.
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="mknod" profile="/usr/sbin/cupsd"
name="/var/spool/cups/00000000" pid=612 comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/var/log/cups/error_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="chown" profile="/usr/sbin/cupsd" name="/var/log/cups/"
pid=612 comm="cupsd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/var/log/cups/error_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/var/log/cups/access_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="chown" profile="/usr/sbin/cupsd" name="/var/log/cups/"
pid=612 comm="cupsd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
Aug 23 00:59:15 pc audit[612]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/var/log/cups/access_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac" fsuid=0 ouid=0
Aug 23 00:59:15 pc cupsd[612]: Unable to change ownership of "/var/log/cups" - Permission denied
Aug 23 00:59:15 pc cupsd[612]: Unable to open log file "/var/log/cups/error_log" - Permission denied
Aug 23 00:59:15 pc cupsd[612]: Unable to change ownership of "/var/log/cups" - Permission denied
Aug 23 00:59:15 pc cupsd[612]: Unable to open log file "/var/log/cups/access_log" - Permission denied
Aug 23 00:59:15 pc kernel: kauditd_printk_skb: 46 callbacks suppressed
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:58): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/srv/ssd3/var/spool/cups/00000000" pid=612 comm="cupsd" requested_mask="c"
denied_mask="c" fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:59): apparmor="DENIED" operation="open"
profile="/usr/sbin/cupsd" name="/var/log/cups/error_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac"
fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:60): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/var/log/cups/" pid=612 comm="cupsd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:61): apparmor="DENIED" operation="open"
profile="/usr/sbin/cupsd" name="/var/log/cups/error_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac"
fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:62): apparmor="DENIED" operation="open"
profile="/usr/sbin/cupsd" name="/var/log/cups/access_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac"
fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:63): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/var/log/cups/" pid=612 comm="cupsd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
Aug 23 00:59:15 pc kernel: audit: type=1400 audit(1598137155.941:64): apparmor="DENIED" operation="open"
profile="/usr/sbin/cupsd" name="/var/log/cups/access_log" pid=612 comm="cupsd" requested_mask="rac" denied_mask="rac"
fsuid=0 ouid=0
So this is a problem of apparmor.
I should move this bug to it.
Cheers
karsten
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