DSF 2.1.1 hangs on apt upgrade with no Duet connected

[A Former User]

Or more specifically upgrading DFS hangs when upgrading the reprapfirmware package.

Unpacking duetcontrolserver (2.1.1) over (2.1.0) ...
Preparing to unpack .../5-duetruntime_2.1.1_armhf.deb ...
Unpacking duetruntime (2.1.1) over (2.1.0) ...
Setting up duetruntime (2.1.1) ...
Setting up duetwebcontrol (2.1.5) ...
Setting up duetcontrolserver (2.1.1) ...
Installing new version of config file /opt/dsf/conf/config.json ...
Setting up duettools (2.1.1) ...
Setting up reprapfirmware (2.1.1-1) ...

Progress: [ 84%] [################################################..........]

ps shows

 1267 ?        Ss     0:00 /usr/bin/dpkg --status-fd 22 --configure --pending
 1284 ?        S      0:00 /bin/sh /var/lib/dpkg/info/reprapfirmware.postinst co
 1286 ?        Sl     0:14 /opt/dsf/bin/DuetControlServer -u

killing DCS was only way to proceed, a reasonable timeout for the update process may be needed?

[A Former User]

D'oh, this is admittedly a bit of an edge case, borderline corner case.

The update hangs because the Pi thinks it has a Duet connected, but it is just two lonely jumpers across RDY/CS and MISO/MOSI after the loopback testing.

Still, a reasonable timeout should be implemented given that another RRF update could break compatibility with DFS updates in the future causing a legitimate hang.

On the bright side distinguisng between the different states of SPI problems are now much easier when looking at he DCS output so thats good

[Phaedrux]

@bearer said in DSF 2.1.1 hangs on apt upgrade with no Duet connected:

The update hangs because the Pi thinks it has a Duet connected, but it is just two lonely jumpers across RDY/CS and MISO/MOSI

That's the saddest thing I've heard all day.

[chrishamm]

OK, I must admit I have not tested this particular use-case yet

[A Former User]

@chrishamm said in DSF 2.1.1 hangs on apt upgrade with no Duet connected:

OK, I must admit I have not tested this particular use-case yet

fair enough .. but wouldn't the change that caused RC6 and RC7 to not upgrade though DCS share the same fate?

if not then ignore ofc.

[chrishamm]

@bearer The latest DCS version only asks for the information it really needs for an update (i.e. the boards key) to avoid potential incompatibilities.

[A Former User]

gotcha, i thought it was a bigger change to the protocol on top of the spi bus.

case closed.