[linux-cifs-client] Re: cifs mounts but no read/write

[Harry Putnam]

Steven French <sfrench at us.ibm.com> writes:

>> I'm mounting shares on a win-XP (pro) machine but am not able to
>> write to them.
>
>> I'm running fedora FC2 test1 software for the most part and a stock 
>> (redhat) kernel kernel-2.6.3-1.97
>
> I  checked the source and found that when authenticated as a guest  the 
> text"Guest login" will get logged by the cifs session setup to the kernel message log 
> (dmesg) but only when cifs debugging is enabled  (echo 1 > 
> /proc/fs/cifs/cifsFYI) but this is unlikely to be the problem given the id 
> that you are using and the output from the "net session" command on the 
> server.

Steven, I missed your reply since it was originally a private thread
and I wasn't aware of this list.

I have a litte additional info to supply here but let me say that in
view of your comments above about possible fixes... 
Sounds like something I could compile into my kernel... if so please
give me a tip or two... if it is something as simple as editing cifs*
before kernel build... I can probably handle that.

Current setup is fedora core2 fc1... not fully up to latest updates.
Kernel=kernel-2.6.1-1.65  But rebuilt to enable smbfs.  Just used the
                          standard fedora spec file and edited std
                          config

samba-3.0.2a-1
mount.cifs 1.1 (not used in mount actions below)

parameters listed in /etc/fstab"

//exp-xp/J-ahn-d  /mnt/J-ahn-d  cifs   username=reader,password=""   0 0
# //exp-xp/J-ahn-d  /mnt/J-ahn-d    smbfs   username=reader,password=""    0 0

For testing I comment one and use the other ...test then reverse.

The windows box is 2003 xp pro
`cacls' on the winbox isn't available for this since it is fat 32
Smbcacls shows:
   # smbcacls //exp-xp/J-ahn-d download
  Password: 
  REVISION:1
  OWNER:\Everyone
  GROUP:\Everyone

What I see here is mounting smbfs allows write and cifs does
not. (using the parameters above)

(with smbfs uncommented)
1)  mount /mnt/J-ahn-d
    <no feedback>

2)  mount:
   [...]
   /dev/hdb3 on /arch type ext3 (rw)
   /dev/hdb10 on /var/www type ext3 (rw)
   //exp-xp/J-ahn-d on /mnt/J-ahn-d type smbfs (0)

3)  touch touch /mnt/J-ahn-d/file
    <no feedback>

4)  rm /mnt/J-ahn-d/file
    rm: remove regular empty file `/mnt/J-ahn-d/file'? y
    <no feedback>

5)  umount /mnt/J-ahn-d

========================
edit /etc/fstab so the cifs line is uncommented.

echo 1 > /proc/fs/cifs/cifsFYI
 ( oops .. where does the debug info go... for reading
   nothing appears in syslog (except when smbfs is a parameter)

1) mount /mnt/J-ahn-d
   <no feedback>

2) mount:
  /dev/hdb3 on /arch type ext3 (rw)
  /dev/hdb10 on /var/www type ext3 (rw)
  //exp-xp/J-ahn-d on /mnt/J-ahn-d type cifs (0)

3)  touch touch /mnt/J-ahn-d/file
    touch: cannot touch `/mnt/J-ahn-d/file': Permission denied