smbpasswd error

[hr.punio]

Trying to setup samba on SheevaPlug (preinstaled Ubuntu),
I have got the following error
when assigning password with smbpasswd:

smbpasswd -a smbuser
> New SMB password:
> Retype new SMB password:
> ltdb: tdb(/var/lib/samba/group_mapping.ldb): tdb_mmap failed for size
> 77824 (Invalid argument)

and the /etc/samba/smbpasswd is empty;  I have changed
passdb backend = smbpasswd and run smbpasswd again.
The error message describe above was displayed again but
/etc/samba/smbpasswd was modified this time...

I can access the samba server but i cannot access shared folder.
`Contact the administrator of this server to find out...'

Any clue how to proceed?
Thanks

[jlpoole]

Sounds like a permissions issue.  Were you root when you set the permissions? 

[birdman]

Random thought...

What type of storage (NAND, SDHC, USB flash/hard-drive) and file system is /var/lib/samba on?

I have a vague memory of ubifs (or was it jffs2) not supporting mmap(), and the error message looks like it might be trying to use that.

[hr.punio]

/var/lib/samba is on  NAND / rootfs
and I am  running as root when executing  smbpasswd

no success story, ie. running samba with build-in Ubuntu?

[birdman]

As I noted, the problem might be that the file system on NAND doesn't support mmap.

See, e.g.:  http://plugcomputer.org/plugforum/index.php?topic=682.msg4136#msg4136

It might be that users running ext3 on an SDHC card, or USB drive have it working, but that wouldn't be the same setup.

[hr.punio]

To bypass rootfs limitations I added
 
 use mmap = no

to smb.conf

And with further trial-and-error modifications
of /etc/samba/smb.conf (appended below)
I managed to setup Samba...


[global]
        workgroup = J_I_K
        server string = %h server (Samba, Ubuntu)
        interfaces = 127.0.0.0/8, eth0
        map to guest = Bad User
        obey pam restrictions = Yes
        smb passwd file = /var/lib/samba/passdb.tdb
        passdb backend = tdbsam
        pam password change = Yes
        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
        username map = /etc/samba/smbusers
        unix password sync = Yes
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        use mmap = No
        dns proxy = No
        usershare allow guests = Yes
        panic action = /usr/share/samba/panic-action %d

[data]
        comment = "Data Directories %T"
        path = /public/sheeva/winstuff
        read only = No
        create mask = 0777
        volume = "data"

[HelenJames]

I have send you in pm