Public bug reported:
[s390x] /dev/hwrng present, yet not usable
# cat /dev/hwrng
cat: /dev/hwrng: No such device
# ls -latr /dev/hwrng
crw------- 1 root root 10, 183 Mar 8 10:28 /dev/hwrng
# modprobe ap
modprobe: ERROR: could not insert 'ap': No such device
# lszcrypt -VV
lszcrypt: error - cryptographic device driver zcrypt is not loaded!
a) permissions should be more liberal on /dev/hwrng
b) /dev/hwrng probably should not be there, when not actually available... (as
per above there is no hwrng card available on the system yet the device is
present and is totally unusable)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-11-generic 4.4.0-11.26
ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
Uname: Linux 4.4.0-11-generic s390x
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2:
ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20-0ubuntu3
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Date: Tue Mar 8 15:30:51 2016
HibernationDevice: RESUME=/dev/mapper/group0-swap
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=/dev/mapper/group0-rootfs BOOT_IMAGE=0
RelatedPackageVersions:
linux-restricted-modules-4.4.0-11-generic N/A
linux-backports-modules-4.4.0-11-generic N/A
linux-firmware 1.156
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug s390x xenial
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https://bugs.launchpad.net/bugs/1554498
Title:
[s390x] /dev/hwrng present, yet not usable
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