[Zope] Zope on CD

[Ulla Theiss]

Hello List,

we need to set a Zope-Installation to read-only to start from cd.
It's Zope 2.10

We set the following directives on zope-conf.
read-only-database on
zserver-read-only-mode on
enable-product-installation off


Then we a custom_zodb.py in %INSTANCE_HOME%

Sometimes Zope starts and sometimes it alerts "Permission denied" - 
"Data.fs.lock"

Does anybody know what could be the problem?

Many thanks in advance,
Ulla.