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--- linux:general:mount [2019/06/06 13:07] – lunetikk
+++ linux:general:mount [2020/01/09 16:36] (current) – lunetikk
@@ Line 1: / Line 1: @@
 ===== Mount networkshares =====
+==== Clientpackages to mount shares ====
+CIFS:\\
+<code>apt-get install cifs-utils</code>
+NFS:\\
+<code>apt-get install nfs-common</code>
 ==== Temp. mount ====
@@ Line 47: / Line 55: @@
 Insert in "/etc/fstab"
-<code><server>:/share       /<mountpoint>   nfs     rw,bg,hard,vers=4.0,suid,timeo=600,noatime,rsize=65536,wsize=65536,sec=sys 0</code>
+<code><server>:/share /<mountpoint> nfs rw,bg,hard,vers=4.0,suid,timeo=600,noatime,rsize=65536,wsize=65536,sec=sys 0</code>
 Execute
 <code>mount -a</code>
-==== Commands ====
+===== Versions =====
+==== CIFS ====
+^  Version  ^  Description  ^
+|  %%vers=3.0%%  |  SMB3 i.e. Windows 8 and up, Windows Server 2012 and up  |
+|  %%vers=2.1%%  |  SMB2_10 i.e. Windows 7, Windows Server 2008 R2  |
+|  %%vers=2.0%%  |  SMB2_02 i.e. Vista SP1, Windows Server 2008  |
+|  %%vers=1.0%%  |  NT1 i.e. Windows 95, NT 4.0  |
+===== Commands =====
 ^  Command  ^  Function  ^
-|  showmount -e <nfsserver>  |  show available nfs shares  |
+|  %%showmount -e <nfsserver>%%  |  show available nfs shares  |
-|  mount -t nfs <server>:/<share> /<mountpoint>  |  mount a nfs share  |
+|  %%mount -t nfs <server>:/<share> /<mountpoint>%%  |  mount a nfs share  |
-|  mount -t cifs //<server>/<share>/ /<mountpoint>  |  mount a cifs share  |
+|  %%mount -t cifs //<server>/<share>/ /<mountpoint>%%  |  mount a cifs share  |
+===== Troubleshooting =====
+==== Cant mount Windowsshares (CIFS) on Linux ====
+=== Description ===
+Mounting your share leads to the following error
+<code>
+mount error(9): Bad file descriptor
+</code>
+=== Reason ===
+Microsoft released an Update (January 8, 2019 (Monthly Rollup)) which broke smb2.0 and 2.1 connections.\\
+The issue affect Windows 7 and Windows Server 2008 (R2).
+[[https://www.theregister.co.uk/2019/01/09/windows_7_network_broken/|https://www.theregister.co.uk/2019/01/09/windows_7_network_broken/]]
+[[https://serverfault.com/questions/948263/kb-4480970-and-or-kb-4480960-breaks-smb2-connections-to-windows-7-shares|https://serverfault.com/questions/948263/kb-4480970-and-or-kb-4480960-breaks-smb2-connections-to-windows-7-shares]]
+=== Fix ===
+Microsoft released a fix to fix their update... m(
+<code>
+This update resolves the issue where local users who are part of the local “Administrators“ group may not be able to remotely access shares on Windows 7 SP1 and Windows Server 2008 R2 machines after installing the January 8th, 2019 security updates.
+This does not affect domain accounts in the local "Administrators" group.
+</code>
+Download KB4487345 and install the fix: [[http://www.catalog.update.microsoft.com/Search.aspx?q=KB4487345|KB4487345]]
+==== CIFS share is mounted but permission is denied ====
+=== Description ===
+Listing the files doesnt work because of missing permission
+<code>
+ll /<mount>
+ls: reading directory /<mount>/: Permission denied
+total 0
+</code>
+=== Reason ===
+Wrong CIFS version
+=== Fix ===
+Add the correct version (vers=1.0/2.0/2.1/3.0) as an option
+<code>
+# in /etc/fstab as perm. mount
+//<server>/<share> /<mountpoint> cifs credentials=</root/.smbcreds>,iocharset=utf8,sec=ntlm,vers=3.0 0 0
+# temp. mount
+mount -t cifs //<server>/<share> /<mountpoint> -o vers=3.0
+</code>
 \\
 \\
 ~~DISCUSSION:closed~~

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