I started a VB and loaded Ubuntu so I could run the BOINCStats Challenge on a Windows machine. I cannot get any tasks as the project thinks I do not have enough memory. I get the error "QuChemPedIA@home: Notice from server
NWChem needs 1954.72MB more disk space. You currently have 2141.31 MB available and it needs 4096.03 MB."

I have 8 cores and 13.1 Gig of memory allocated to the VB and in BOINC I have the preferences to use 100% of memory.

dingo@dingo7:~$ free -m
              total        used        free      shared  buff/cache   available
Mem:          13463        1029       11445          16         988       12159
Swap:           472           0         472

/etc/boinc-client/global_prefs_override.xml file

<global_preferences>
   <run_on_batteries>0</run_on_batteries>
   <run_if_user_active>1</run_if_user_active>
   <run_gpu_if_user_active>1</run_gpu_if_user_active>
   <suspend_cpu_usage>0.000000</suspend_cpu_usage>
   <start_hour>0.000000</start_hour>
   <end_hour>0.000000</end_hour>
   <net_start_hour>0.000000</net_start_hour>
   <net_end_hour>0.000000</net_end_hour>
   <leave_apps_in_memory>0</leave_apps_in_memory>
   <confirm_before_connecting>0</confirm_before_connecting>
   <hangup_if_dialed>0</hangup_if_dialed>
   <dont_verify_images>0</dont_verify_images>
   <work_buf_min_days>0.020000</work_buf_min_days>
   <work_buf_additional_days>0.000000</work_buf_additional_days>
   <max_ncpus_pct>50.000000</max_ncpus_pct>
   <cpu_scheduling_period_minutes>60.000000</cpu_scheduling_period_minutes>
   <disk_interval>100.000000</disk_interval>
   <disk_max_used_gb>0.000000</disk_max_used_gb>

 <disk_min_free_gb>0.250000</disk_min_free_gb>
   <vm_max_used_pct>100.000000</vm_max_used_pct>
   <ram_max_used_busy_pct>100.000000</ram_max_used_busy_pct>
   <ram_max_used_idle_pct>100.000000</ram_max_used_idle_pct>
   <max_bytes_sec_up>0.000000</max_bytes_sec_up>
   <max_bytes_sec_down>0.000000</max_bytes_sec_down>
   <cpu_usage_limit>100.000000</cpu_usage_limit>
   <daily_xfer_limit_mb>0.000000</daily_xfer_limit_mb>
   <daily_xfer_period_days>0</daily_xfer_period_days>
</global_preferences>
                            

Any help appresiated.

I was on the wrong track. It is disk space it is complaining about.

I increased the VM disk size to 17 gig but still get the same message.

it's strange... Did you try to reset the project ?

I detached and re-attached a couple of times. No Biggy I will just not use the VM, I have a bunch of Linux machines running anyway I was just going to try and add a couple of Windoz ones.

I was on the wrong track. It is disk space it is complaining about.

I increased the VM disk size to 17 gig but still get the same message.

BOINC has a known bug (or feature, if you prefer).
You need to set the "Use at most ... GB disk space" to a large value, such as the total of your drive.
And set "Use at most ... % of total disk space" to 100%.