[Bug 1734700] Re: mounting CIFS share failure (cifs_mount failed w/return code = -2)
Jhair Tocancipa Triana
jhair.tocancipa at gmail.com
Fri Apr 24 07:00:48 UTC 2020
Suddenly mounting a cifs partition fails:
$ mount.cifs //de1-user-2/c$ -o
x-systemd.automount,noauto,iocharset=utf8,uid=user,gid=user,credentials=/root/.cifscredentials,file_mode=0775,dir_mode=0775,noserverino,nobrl,vers=3.0
/home/user/Windows/
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)
$ dmesg
[ 1410.023973] CIFS: Attempting to mount //de1-user-2/c$
[ 1410.026724] CIFS VFS: BAD_NETWORK_NAME: \\de1-user-2\c$
[ 1410.027049] CIFS VFS: cifs_mount failed w/return code = -2
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:xfce
Date: Fri Apr 24 08:52:16 2020
Dependencies:
adduser 3.118ubuntu2
apt 2.0.2
apt-utils 2.0.2
ca-certificates 20190110ubuntu1
debconf 1.5.73
debconf-i18n 1.5.73
dpkg 1.19.7ubuntu3
gcc-10-base 10-20200411-0ubuntu1
gpgv 2.2.19-3ubuntu2
krb5-locales 1.17-6ubuntu4
libacl1 2.2.53-6
libapt-pkg6.0 2.0.2
libaudit-common 1:2.8.5-2ubuntu6
libaudit1 1:2.8.5-2ubuntu6
libbsd0 0.10.0-1
libbz2-1.0 1.0.8-2
libc6 2.31-0ubuntu9
libcap-ng0 0.7.9-2.1build1
libcom-err2 1.45.5-2ubuntu1
libcrypt1 1:4.4.10-10ubuntu4
libdb5.3 5.3.28+dfsg1-0.6ubuntu2
libffi7 3.3-4
libgcc-s1 10-20200411-0ubuntu1
libgcrypt20 1.8.5-5ubuntu1
libgmp10 2:6.2.0+dfsg-4
libgnutls30 3.6.13-2ubuntu1
libgpg-error-l10n 1.37-1
libgpg-error0 1.37-1
libhogweed5 3.5.1+really3.5.1-2
libidn2-0 2.2.0-2
libk5crypto3 1.17-6ubuntu4
libkeyutils1 1.6-6ubuntu1
libkrb5-3 1.17-6ubuntu4
libkrb5support0 1.17-6ubuntu4
liblocale-gettext-perl 1.07-4
liblz4-1 1.9.2-2
liblzma5 5.2.4-1
libnettle7 3.5.1+really3.5.1-2
libp11-kit0 0.23.20-1build1
libpam-modules 1.3.1-5ubuntu4
libpam-modules-bin 1.3.1-5ubuntu4
libpam0g 1.3.1-5ubuntu4
libpcre2-8-0 10.34-7
libseccomp2 2.4.3-1ubuntu1
libselinux1 3.0-1build2
libsemanage-common 3.0-1build2
libsemanage1 3.0-1build2
libsepol1 3.0-1
libssl1.1 1.1.1f-1ubuntu2
libstdc++6 10-20200411-0ubuntu1
libsystemd0 245.4-4ubuntu3
libtalloc2 2.3.0-3ubuntu1
libtasn1-6 4.16.0-2
libtevent0 0.10.1-4
libtext-charwidth-perl 0.04-10
libtext-iconv-perl 1.7-7
libtext-wrapi18n-perl 0.06-9
libudev1 245.4-4ubuntu3
libunistring2 0.9.10-2
libwbclient0 2:4.11.6+dfsg-0ubuntu1
libzstd1 1.4.4+dfsg-3
openssl 1.1.1f-1ubuntu2
passwd 1:4.8.1-1ubuntu5
perl-base 5.30.0-9build1
tar 1.30+dfsg-7
ubuntu-keyring 2020.02.11.2
update-motd 3.6-0ubuntu6
zlib1g 1:1.2.11.dfsg-2ubuntu1
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2014-12-01 (1970 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
Package: cifs-utils 2:6.9-1
PackageArchitecture: amd64
ProcCpuinfoMinimal:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 142
model name : Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz
stepping : 9
microcode : 0xffffffff
cpu MHz : 2903.999
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 21
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology cpuid pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ssbd ibrs ibpb stibp fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves flush_l1d
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips : 5807.99
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
ProcEnviron:
LC_TIME=en_US.UTF-8
LD_LIBRARY_PATH=<set>
LC_MONETARY=en_US.UTF-8
TERM=xterm-256color
PATH=(custom, no user)
LC_ADDRESS=en_US.UTF-8
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
SHELL=/bin/bash
LC_NAME=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_NUMERIC=en_US.UTF-8
LC_PAPER=en_US.UTF-8
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
SourcePackage: cifs-utils
Tags: focal
Uname: Linux 5.4.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
_MarkForUpload: True
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https://bugs.launchpad.net/bugs/1734700
Title:
mounting CIFS share failure (cifs_mount failed w/return code = -2)
Status in cifs-utils package in Ubuntu:
Confirmed
Bug description:
HOST: Kubuntu 16.04.3 LTS
LOCALHOST: Kubuntu 17.10
The system is in an working Active Directory environment (realm,
sssd). But mounting on commandline using a kerberos ticket is failing:
mount -t cifs -o user=USER,domain=DOMAIN,cruid=USER,sec=krb5 //HOST/share /mnt/tmp
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
journalctl/syslog:
CIFS VFS: Send error in SessSetup = -2
CIFS VFS: cifs_mount failed w/return code = -2
smbclient -k -U USER //HOST/share
is working and I can list all files in the share.
smbclient -U USER //HOST/share
is working too (without kerberos!) and I can list all files in the share.
using a filemanager with cifs like dolphin is working!
I can open smb://HOST/share with dolphin without a password (SSO).
Using mount.cifs without kerberos is not working too (in contrast to dolphin and smbclient):
mount -t cifs -o user=USER,domain=DOMAIN //HOST/share /mnt/tmp
Password for USER@//HOST/share: *************
mount error(5): Input/output error
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
journalctl/syslog:
Status code returned 0xc000005e STATUS_NO_LOGON_SERVERS
CIFS VFS: Send error in SessSetup = -5
CIFS VFS: cifs_mount failed w/return code = -5
Additional tests show me that it is working the other way round:
mounting Kubuntu 17.10 from Kubuntu 16.04.3 with kerberos (same machines) is working!
There has to be a change, that is not working anymore with a newer Ubuntu than 16.04.
Mounting on commandline without kerberos is not working too and I get the same error as above in syslog:
CIFS VFS: Send error in SessSetup = -5
CIFS VFS: cifs_mount failed w/return code = -5
Anyway, cifs mounting with kerberos stops working in newer distributions, which has to be fixed!
LOCALHOST: Kubuntu 17.10
========================
# dpkg -l | grep -e krb5 -e samba -e smb -e sssd
ii krb5-config 2.6 all Configuration files for Kerberos Version 5
ii krb5-locales 1.15.1-2 all internationalization support for MIT Kerberos
ii krb5-user 1.15.1-2 amd64 basic programs to authenticate using MIT Kerberos
ii libgssapi-krb5-2:amd64 1.15.1-2 amd64 MIT Kerberos runtime libraries - krb5 GSS-API Mechanism
ii libkrb5-26-heimdal:amd64 7.4.0.dfsg.1-2 amd64 Heimdal Kerberos - libraries
ii libkrb5-3:amd64 1.15.1-2 amd64 MIT Kerberos runtime libraries
ii libkrb5support0:amd64 1.15.1-2 amd64 MIT Kerberos runtime libraries - Support library
ii libsmbclient:amd64 2:4.6.7+dfsg-1ubuntu3.1 amd64 shared library for communication with SMB/CIFS servers
ii libsmbios2v5 2.3.1-0ubuntu2 amd64 Provide access to (SM)BIOS information -- dynamic library
ii python-samba 2:4.6.7+dfsg-1ubuntu3.1 amd64 Python bindings for Samba
ii samba 2:4.6.7+dfsg-1ubuntu3.1 amd64 SMB/CIFS file, print, and login server for Unix
ii samba-common 2:4.6.7+dfsg-1ubuntu3.1 all common files used by both the Samba server and client
ii samba-common-bin 2:4.6.7+dfsg-1ubuntu3.1 amd64 Samba common files used by both the server and the client
ii samba-dsdb-modules 2:4.6.7+dfsg-1ubuntu3.1 amd64 Samba Directory Services Database
ii samba-libs:amd64 2:4.6.7+dfsg-1ubuntu3.1 amd64 Samba core libraries
ii samba-vfs-modules 2:4.6.7+dfsg-1ubuntu3.1 amd64 Samba Virtual FileSystem plugins
ii smb4k 2.0.1-1 amd64 Samba (SMB) share advanced browser
ii smbclient 2:4.6.7+dfsg-1ubuntu3.1 amd64 command-line SMB/CIFS clients for Unix
ii sssd 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- metapackage
ii sssd-ad 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- Active Directory back end
ii sssd-ad-common 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- PAC responder
ii sssd-common 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- common files
ii sssd-dbus 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- D-Bus responder
ii sssd-ipa 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- IPA back end
ii sssd-krb5 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- Kerberos back end
ii sssd-krb5-common 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- Kerberos helpers
ii sssd-ldap 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- LDAP back end
ii sssd-proxy 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- proxy back end
ii sssd-tools 1.15.3-2ubuntu1 amd64 System Security Services Daemon -- tools
HOST: Kubuntu 16.04.3 LTS
=========================
# dpkg -l | grep -e krb5 -e samba -e smb -e sssd
ii krb5-config 2.3 all Configuration files for Kerberos Version 5
ii krb5-locales 1.13.2+dfsg-5ubuntu2 all Internationalization support for MIT Kerberos
ii krb5-user 1.13.2+dfsg-5ubuntu2 amd64 Basic programs to authenticate using MIT Kerberos
ii libgssapi-krb5-2:amd64 1.13.2+dfsg-5ubuntu2 amd64 MIT Kerberos runtime libraries - krb5 GSS-API Mechanism
ii libkrb5-26-heimdal:amd64 1.7~git20150920+dfsg-4ubuntu1.16.04.1 amd64 Heimdal Kerberos - libraries
ii libkrb5-3:amd64 1.13.2+dfsg-5ubuntu2 amd64 MIT Kerberos runtime libraries
ii libkrb5support0:amd64 1.13.2+dfsg-5ubuntu2 amd64 MIT Kerberos runtime libraries - Support library
ii libsmbclient:amd64 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 shared library for communication with SMB/CIFS servers
ii python-samba 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 Python bindings for Samba
ii samba 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 SMB/CIFS file, print, and login server for Unix
ii samba-common 2:4.3.11+dfsg-0ubuntu0.16.04.12 all common files used by both the Samba server and client
ii samba-common-bin 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 Samba common files used by both the server and the client
ii samba-dsdb-modules 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 Samba Directory Services Database
ii samba-libs:amd64 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 Samba core libraries
ii samba-vfs-modules 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 Samba Virtual FileSystem plugins
ii smb4k 1.1.2-1 amd64 Samba (SMB) share advanced browser for KDE
ii smbclient 2:4.3.11+dfsg-0ubuntu0.16.04.12 amd64 command-line SMB/CIFS clients for Unix
ii sssd 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- metapackage
ii sssd-ad 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- Active Directory back end
ii sssd-ad-common 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- PAC responder
ii sssd-common 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- common files
ii sssd-ipa 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- IPA back end
ii sssd-krb5 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- Kerberos back end
ii sssd-krb5-common 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- Kerberos helpers
ii sssd-ldap 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- LDAP back end
ii sssd-proxy 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- proxy back end
ii sssd-tools 1.13.4-1ubuntu1.9 amd64 System Security Services Daemon -- tools
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