Hi,

I wanted to ask about the new vfs_block and how a block file can be made persistent between Goa runs. My vfs_block configuration is as follows:

  <content>

    <rom label="vfs"/>

    <rom label="vfs_block"/>

    <rom label="vfs.lib.so"/>

    <rom label="vfs_import.lib.so"/>

    <rom label="vfs_lwext4.lib.so" />

    <rom label="snapper_block.raw"/>

  </content>

<start name="vfs_block" ram="1G">

    <provides><service name="Block"/></provides>

    <config>

        <vfs>

            <ram/>

            <import>

                <rom name="snapper_block.raw"/>

            </import>

        </vfs>

        <policy label_prefix="vfs"

            file="/snapper_block.raw" block_size="512" writeable="yes"/>

    </config>

</start>

My program runs successfully, however changes made to the block file (snapper_block.raw) do not persist. This is because I use <ram/>. But without <ram/> I get an error that the block file is inaccessible.

How can I make the block changes persist between runs? In previous versions of Genode I could achieve this with lx_block, but I am unsure how to do this with vfs_block.

Best,

Rumen