Hi, I'm using Ubuntu 16.04 LTS, with an Intel Celeron CPU and Intel Bay Trail graphics. I've been trying to install and run BOINC every way I can think of, but any time I attempt to run the client via terminal (various methods), I get this message:

06-Aug-2016 15:28:49 [---] cc_config.xml not found - using defaults
06-Aug-2016 15:28:49 [---] Starting BOINC client version 7.6.31 for x86_64-pc-linux-gnu
06-Aug-2016 15:28:49 [---] log flags: file_xfer, sched_ops, task
06-Aug-2016 15:28:49 [---] Libraries: libcurl/7.47.0 OpenSSL/1.0.2g zlib/1.2.8 libidn/1.32 librtmp/2.3
06-Aug-2016 15:28:49 [---] Data directory: /home/riley
execv: No such file or directory
06-Aug-2016 15:28:49 [---] GPU detection failed. error code 512
06-Aug-2016 15:28:49 [---] No usable GPUs found
06-Aug-2016 15:28:49 [---] Host name: RR-Inspiron-3531
06-Aug-2016 15:28:49 [---] Processor: 2 GenuineIntel Intel(R) Celeron(R) CPU  N2830  @ 2.16GHz [Family 6 Model 55 Stepping 8]
06-Aug-2016 15:28:49 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat
06-Aug-2016 15:28:49 [---] OS: Linux: 4.4.0-31-generic
06-Aug-2016 15:28:49 [---] Memory: 3.75 GB physical, 3.89 GB virtual
06-Aug-2016 15:28:49 [---] Disk: 27.04 GB total, 11.85 GB free
06-Aug-2016 15:28:49 [---] Local time is UTC -7 hours
06-Aug-2016 15:28:49 [---] No general preferences found - using defaults
06-Aug-2016 15:28:49 [---] Preferences:
06-Aug-2016 15:28:49 [---]    max memory usage when active: 1917.60MB
06-Aug-2016 15:28:49 [---]    max memory usage when idle: 3451.69MB
06-Aug-2016 15:28:49 [---]    max disk usage: 11.76GB
06-Aug-2016 15:28:49 [---]    don't use GPU while active
06-Aug-2016 15:28:49 [---]    suspend work if non-BOINC CPU load exceeds 25%
06-Aug-2016 15:28:49 [---]    (to change preferences, visit a project web site or select Preferences in the Manager)
dir_open: Could not open directory 'slots' from '/home/riley'.

I've been searching these forums and Google for about an hour and tried about everything I've seen, like updating drivers and restarting the Boinc client but nothing seems to be working. It may be of use to note the manager works just fine. Any help? Thanks!

These drivers you installed, do they have any OpenCL component?
You may want to try https://software.intel.com/en-us/articles/opencl-drivers#latest_linux_driver from Intel themselves.

Although I wonder if there are projects already that have applications that use the Intel GPU under Linux. And I also wonder if the GPU in the Celeron N2830 is even OpenCL compatible.

---

dir_open: Could not open directory 'slots' from '/home/riley'

I'm not quite sure that you have installed boinc correctly, or you may be running the client incorrectly and the GPU error is a result of that.

You should not normally need to run the client from a terminal window, as the boinc repository install should work normally.

Ubuntu 16.04 boinc source indicates 7.6.31 is the current source.

I presume you installed "boinc" (which includes the manager AND the client)

Please remove any attempts at installing boinc other than via the repos.

When requesting help on these forums. asks for some details of the event log, as viewed by the client, that probably will be revealing.

Good luck.

Sorry guys for not replying sooner, thanks for your help so far!

These drivers you installed, do they have any OpenCL component?
You may want to try https://software.intel.com/en-us/articles/opencl-drivers#latest_linux_driver from Intel themselves.

Although I wonder if there are projects already that have applications that use the Intel GPU under Linux. And I also wonder if the GPU in the Celeron N2830 is even OpenCL compatible.

Not sure, downloaded OpenCL successfully from your link though. Couldn't find anything about my GPU being compatible either, but I assume it is.

dir_open: Could not open directory 'slots' from '/home/riley'

I'm not quite sure that you have installed boinc correctly, or you may be running the client incorrectly and the GPU error is a result of that.

You should not normally need to run the client from a terminal window, as the boinc repository install should work normally.

Ubuntu 16.04 boinc source indicates 7.6.31 is the current source.

I presume you installed "boinc" (which includes the manager AND the client)

Please remove any attempts at installing boinc other than via the repos.

When requesting help on these forums. asks for some details of the event log, as viewed by the client, that probably will be revealing.

Good luck.

Yes, I am sure I downloaded both the client and manager. Tried to remove previous attempts and reinstalled using package manager. Here's the results from attempting to run it using "boinc" again:

07-Aug-2016 13:56:38 [---] cc_config.xml not found - using defaults
07-Aug-2016 13:56:38 [---] Starting BOINC client version 7.6.31 for x86_64-pc-linux-gnu
07-Aug-2016 13:56:38 [---] log flags: file_xfer, sched_ops, task
07-Aug-2016 13:56:38 [---] Libraries: libcurl/7.47.0 OpenSSL/1.0.2g zlib/1.2.8 libidn/1.32 librtmp/2.3
07-Aug-2016 13:56:38 [---] Data directory: /home/riley
execv: No such file or directory
07-Aug-2016 13:56:38 [---] GPU detection failed. error code 512
07-Aug-2016 13:56:38 [---] No usable GPUs found
07-Aug-2016 13:56:38 [---] Host name: RR-Inspiron-3531
07-Aug-2016 13:56:38 [---] Processor: 2 GenuineIntel Intel(R) Celeron(R) CPU  N2830  @ 2.16GHz [Family 6 Model 55 Stepping 8]
07-Aug-2016 13:56:38 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat
07-Aug-2016 13:56:38 [---] OS: Linux: 4.4.0-31-generic
07-Aug-2016 13:56:38 [---] Memory: 3.75 GB physical, 3.89 GB virtual
07-Aug-2016 13:56:38 [---] Disk: 27.04 GB total, 10.53 GB free
07-Aug-2016 13:56:38 [---] Local time is UTC -7 hours
07-Aug-2016 13:56:38 [---] No general preferences found - using defaults
07-Aug-2016 13:56:38 [---] Preferences:
07-Aug-2016 13:56:38 [---]    max memory usage when active: 1917.60MB
07-Aug-2016 13:56:38 [---]    max memory usage when idle: 3451.69MB
07-Aug-2016 13:56:38 [---]    max disk usage: 10.43GB
07-Aug-2016 13:56:38 [---]    don't use GPU while active
07-Aug-2016 13:56:38 [---]    suspend work if non-BOINC CPU load exceeds 25%
07-Aug-2016 13:56:38 [---]    (to change preferences, visit a project web site or select Preferences in the Manager)
dir_open: Could not open directory 'slots' from '/home/riley'.
07-Aug-2016 13:57:07 [---] GUI RPC bind to port 31416 failed: 98
07-Aug-2016 13:57:08 gstate.init() failed
Error Code: -180

And here's from the event log:

Sun 07 Aug 2016 01:51:08 PM MST |  | Starting BOINC client version 7.6.31 for x86_64-pc-linux-gnu
Sun 07 Aug 2016 01:51:08 PM MST |  | log flags: file_xfer, sched_ops, task
Sun 07 Aug 2016 01:51:08 PM MST |  | Libraries: libcurl/7.47.0 OpenSSL/1.0.2g zlib/1.2.8 libidn/1.32 librtmp/2.3
Sun 07 Aug 2016 01:51:08 PM MST |  | Data directory: /var/lib/boinc-client
Sun 07 Aug 2016 01:51:08 PM MST |  | No usable GPUs found
Sun 07 Aug 2016 01:51:08 PM MST |  | Creating new client state file
Sun 07 Aug 2016 01:51:08 PM MST |  | Host name: RR-Inspiron-3531
Sun 07 Aug 2016 01:51:08 PM MST |  | Processor: 2 GenuineIntel Intel(R) Celeron(R) CPU  N2830  @ 2.16GHz [Family 6 Model 55 Stepping 8]
Sun 07 Aug 2016 01:51:08 PM MST |  | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat
Sun 07 Aug 2016 01:51:08 PM MST |  | OS: Linux: 4.4.0-31-generic
Sun 07 Aug 2016 01:51:08 PM MST |  | Memory: 3.75 GB physical, 3.89 GB virtual
Sun 07 Aug 2016 01:51:08 PM MST |  | Disk: 27.04 GB total, 10.53 GB free
Sun 07 Aug 2016 01:51:08 PM MST |  | Local time is UTC -7 hours
Sun 07 Aug 2016 01:51:08 PM MST |  | Config: GUI RPCs allowed from:
Sun 07 Aug 2016 01:51:08 PM MST |  | No general preferences found - using defaults
Sun 07 Aug 2016 01:51:08 PM MST |  | Reading preferences override file
Sun 07 Aug 2016 01:51:08 PM MST |  | Preferences:
Sun 07 Aug 2016 01:51:08 PM MST |  | max memory usage when active: 1917.60MB
Sun 07 Aug 2016 01:51:08 PM MST |  | max memory usage when idle: 3451.69MB
Sun 07 Aug 2016 01:51:08 PM MST |  | max disk usage: 10.43GB
Sun 07 Aug 2016 01:51:08 PM MST |  | don't use GPU while active
Sun 07 Aug 2016 01:51:08 PM MST |  | suspend work if non-BOINC CPU load exceeds 25%
Sun 07 Aug 2016 01:51:08 PM MST |  | (to change preferences, visit a project web site or select Preferences in the Manager)
Sun 07 Aug 2016 01:51:08 PM MST |  | gui_rpc_auth.cfg is empty - no GUI RPC password protection
Sun 07 Aug 2016 01:51:08 PM MST |  | This computer is not attached to any projects
Sun 07 Aug 2016 01:51:08 PM MST |  | Visit http://boinc.berkeley.edu for instructions
Sun 07 Aug 2016 01:51:28 PM MST |  | Suspending computation - CPU is busy
Sun 07 Aug 2016 01:51:44 PM MST |  | Fetching configuration file from http://einstein.phys.uwm.edu/get_project_config.php
Sun 07 Aug 2016 01:51:59 PM MST |  | Resuming computation
Sun 07 Aug 2016 01:52:29 PM MST |  | Suspending computation - CPU is busy
Sun 07 Aug 2016 01:53:09 PM MST |  | Resuming computation
Sun 07 Aug 2016 01:53:19 PM MST |  | Suspending computation - CPU is busy
Sun 07 Aug 2016 01:53:29 PM MST |  | Resuming computation
Sun 07 Aug 2016 01:53:33 PM MST |  | Running CPU benchmarks
Sun 07 Aug 2016 01:53:33 PM MST |  | Suspending computation - CPU benchmarks in progress
Sun 07 Aug 2016 01:54:04 PM MST |  | Benchmark results:
Sun 07 Aug 2016 01:54:04 PM MST |  | Number of CPUs: 2
Sun 07 Aug 2016 01:54:04 PM MST |  | 1971 floating point MIPS (Whetstone) per CPU
Sun 07 Aug 2016 01:54:04 PM MST |  | 6842 integer MIPS (Dhrystone) per CPU
Sun 07 Aug 2016 01:54:04 PM MST |  | Resuming computation
Sun 07 Aug 2016 01:54:07 PM MST | Einstein@Home | Master file download succeeded
Sun 07 Aug 2016 01:54:12 PM MST | Einstein@Home | Sending scheduler request: Project initialization.
Sun 07 Aug 2016 01:54:12 PM MST | Einstein@Home | Requesting new tasks for CPU
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | Scheduler request completed: got 2 new tasks
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | Resent lost task LATeah0001L_1488.0_0_0.0_22025150_0
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | Resent lost task LATeah0001L_1488.0_0_0.0_22035825_0
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | General prefs: from Einstein@Home (last modified 06-Aug-2016 14:47:51)
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | Host location: none
Sun 07 Aug 2016 01:54:15 PM MST | Einstein@Home | General prefs: using your defaults
Sun 07 Aug 2016 01:54:15 PM MST |  | Reading preferences override file
Sun 07 Aug 2016 01:54:15 PM MST |  | Preferences:
Sun 07 Aug 2016 01:54:15 PM MST |  | max memory usage when active: 1917.60MB
Sun 07 Aug 2016 01:54:15 PM MST |  | max memory usage when idle: 3451.69MB
Sun 07 Aug 2016 01:54:15 PM MST |  | max disk usage: 10.43GB
Sun 07 Aug 2016 01:54:15 PM MST |  | don't compute while active
Sun 07 Aug 2016 01:54:15 PM MST |  | don't use GPU while active
Sun 07 Aug 2016 01:54:15 PM MST |  | suspend work if non-BOINC CPU load exceeds 25%
Sun 07 Aug 2016 01:54:15 PM MST |  | (to change preferences, visit a project web site or select Preferences in the Manager)
Sun 07 Aug 2016 01:54:15 PM MST |  | Suspending computation - computer is in use
Sun 07 Aug 2016 01:54:15 PM MST |  | Suspending file transfers - computer is in use

Previously the manager was having issues (said it couldn't find core client) but now it's doing something (screen says downloading work from server), so there's progress.

EDIT: The manager is working just fine now, and it's currently doing some work. Thanks everybody!

Sorry guys for not replying sooner, thanks for your help so far!

These drivers you installed, do they have any OpenCL component?
You may want to try https://software.intel.com/en-us/articles/opencl-drivers#latest_linux_driver from Intel themselves.

Although I wonder if there are projects already that have applications that use the Intel GPU under Linux. And I also wonder if the GPU in the Celeron N2830 is even OpenCL compatible.

Yes, I am sure I downloaded both the client and manager. Tried to remove previous attempts and reinstalled using package manager. Here's the results from attempting to run it using "boinc" again:
Previously the manager was having issues (said it couldn't find core client) but now it's doing something (screen says downloading work from server), so there's progress.

EDIT: The manager is working just fine now, and it's currently doing some work. Thanks everybody!

OK great - do not run boinc client in a terminal window via "boinc" - doing so will start a second copy of the client which is likely to be confused about where the boinc data directory lives and fail GPU detection.

If you want to start the boinc manager from a terminal window, then may i suggest (*)

man boincmgr   
boincmgr &

If you must stop / start the boinc client from the command line, at 16.04 then the correct systemd stylee

man sudo
man systemctl
sudo systemctl stop boinc-client.service
sudo systemctl start boinc-client.service

(*) - man - short for manual, is the first linux command to use, and i find if i don't use man command, before command, penguins may display strange behaviour.