** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1344405
Title:
Kernel missing /proc/keys
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Precise:
New
Status in “linux” source package in Trusty:
Fix Released
Status in “linux” source package in Utopic:
Fix Released
Bug description:
lsb_release -rd
Description: Ubuntu 14.04 LTS
Release: 14.04
apt-cache policy linux-generic
linux-generic:
Installed: 3.13.0.24.28
Candidate: 3.13.0.32.38
Version table:
3.13.0.32.38 0
500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64
Packages
*** 3.13.0.24.28 0
500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
-------------------------
When attempting to clear NFS uid/gid cache I ran nfsidmap -c
expected Result
no response, nfsidmap does not return anything if it completes properly
example:
[root@quebec ~]# nfsidmap -c
[root@quebec ~]#
What did happen
root@u1404vm:~# nfsidmap -c
nfsidmap: fopen(/proc/keys) failed: No such file or directory
I checked /proc and the /proc/key-users file and the
/proc/sys/kernel/keys directory were there.
I Looked up Kernel Key Management and saw that /proc/keys was needed
to hold the key pairs used by the kernel.
From Google'ng the following kernel option needs to be enabled
CONFIG_KEYS_DEBUG_PROC_KEY
or /proc/keys does not get created.
I checked /boot/config-3.13.0-24-generic and that option is not
enabled.
I checked this on both Centos 6.5/7 and Mageia and they are enabled
and /proc/keys exist, nfsidmap -c works.
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