Loading component configuration from file with lx_fs.

Mikael Sahlström mick.sahlstrom at ...9...
Mon Jan 25 15:37:37 CET 2016


I would like to load a component configuration from a file on linux. So
I've added a lx_fs and a fs_rom component that replaces my dynamic_rom
component without changing any code in my component. So far is everything
good (I hope!).

To my questions:
1. How do I state which file to read?
2. My understanding is that the root attribute in lx_fs defines which
directory genode will see as root. But anything except "/" here results in
the error message "Session root directory "..." does not exist".
3. Do I write the same thing in the config file as I did when having the
dynamic_rom (<config attribute="value" .... />)?

My configuration:
<start name="component">
   <resource name="RAM" quantum="5M"/>
    <service name="ROM">
      <child name="fs_rom"/>
     <any-service> <parent/> <any-child/> </any-service>

  <start name="fs_rom">
    <resource name="RAM" quantum="4M" />
    <provides> <service name="ROM" /> </provides>
      <service name="File_system"> <child name="lx_fs" /> </service>
      <any-service> <parent/> <any-child/> </any-service>

  <start name="lx_fs">
    <resource name="RAM" quantum="4M" />
    <provides> <service name="File_system" /> </provides>
    <config> <policy label="fs_rom" root="/" writable="no" /> </config>

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