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Applicable Environment
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- Topic: Mounting CDs, DVDs, ISOs
- SDP: 6.6.0
- Target: Any supported target
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Recommendation
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The
fs-udf.so library is used when mounting CDs, DVDs and ISOs. The
fs-cd.so binary can be used on legacy systems but is now deprecated.
Here is an example of mounting an ISO (note that unlike other operating systems the mount directory does not need to exist):
mount -t udf /somedir/file.iso /fs/mountlocation
Here is an example of mounting a CD or DVD (make sure devb-eide or devb-ahci is running before mounting!)
mount -t udf /dev/cd0 /fs/mountlocation
See below for some caveats to keep in mind when using
fs-udf.so:
1) The
fs-udf.so binary cannot be stored on a filesystem on the devb block device. Otherwise you will see a "Can't access shared library" error, e.g.
~~~
mount: Can't mount /fs/mountlocation (type udf)
mount: Possible reason: Can't access shared library
~~~
To workaround the "Can't access shared library" error either include
fs-udf.so in the build file so that the IFS will include
fs-udf.so, or copy
fs-udf.so to /dev/shmem then use the
fs-udf.so in RAM, e.g.
mount -t /dev/shmem/
fs-udf.so /somedir/file.iso /fs/mountlocation
2) There are restrictions on where the ISO to mount can be stored. For example, attempting to mount an ISO stored in /dev/shmem or an NFS share will result in an error when mounting, e.g.
~~~
mount: Can't mount /fs/mountlocation (type /dev/shmem/file.iso)
mount: Possible reason: No such device or address
~~~
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NOTE:
This entry has been validated against the SDP version listed above. Use
caution when considering this advice for any other SDP version. For
supported releases, please reach out to QNX Technical Support if you have any questions/concerns. ________________________________________________________________________
