Hello,
On 24.05.24 00:59, John J. Karcher wrote:
Beside that, you may create a custom launcher and replace the occurrence of block.vdi with your desired vdi file name.
To do so, start a vdi_block instance, copy the resulting xml vdi_block text from config/ managed/runtime to your new
launcher file. Replace in the file the xml node "start" with "launcher", e.g. <start ...> ...
/start> -> <launcher ...> ... /launcher>. Finally, replace the occurrences of block.vdi with another file
name you desire.
I don't want to rename all my VDI files, so I did this, but I seem to be
missing something. (I am still at the kindergarten level with these config
files.)
Here is my example:
<launcher name="vdi_block_abc" pkg="alex-ab/pkg/vdi_block/2024-04-09">
<route>
<service name="File_system" label="ABC-disk1.vdi">
<child name="vm_fs_abc"/>
</service>
</route>
</launcher>
If I use "block.vdi" for the label, it doesn't complain, but it can't find the file. If I use it
as above, it fails to load because of missing "block.vdi". ("vm_fs_abc" points to the
correct directory, and works with VBox.)
Am I on the right track? Do I need to add a <config> node or something?
just using the Genode re-label mechanism will not work. Inside the established
file system session, the file name is actually requested, which is not
rewriteable from the outside.
So, indeed, you have to change the config of the vdi_block, that is why I
suggested to look into config/managed/_runtime_ instead of
config/managed/deploy, the former contains the config snipped.
I crafted a config on a ram_fs and it looks like follows. Additionally, I removed the
<import...> node and named the Filesystem label a bit more obvious, just to
avoid confusion. The import node is only required to import a new empty block.vdi if
it does not exists, which you don't desire/require in your case.
<launcher pkg="alex-ab/pkg/vdi_block/2024-04-09" priority="-2">
<config file="/your.vdi" writeable="yes">
<vfs>
<fs label="fs_vdi" buffer_size="2M"/>
</vfs>
</config>
<route>
<service name="File_system" label="fs_vdi">
<child name="ram_fs"/>
</service>
</route>
</launcher>
Hope it helps,
Alex.
--
Alexander Boettcher
Genode Labs
https://www.genodians.org - https://www.genode.org
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