I have three RaspBerry pi2 running windows 10 IoT.
On two of them I'm able to access drive d: as removable device from my code.
One of them when I run the following code
StorageFolder externalDevices = Windows.Storage.KnownFolders.RemovableDevices;
StorageFolder sdCard = (await externalDevices.GetFoldersAsync()).FirstOrDefault();
if (sdCard == null)
{
I get null for the sdCard - but this happens just for one of three.
And on all devices I can access d: via \myip\d$
Is this a "bug" or did I forget a step when configuring my third device?
I found the source of the problem.
The SD card was created from an existing one using win32diskimager. It looked good except the problem here. After checking bit by bit I found out that the card has a lot of partitions - one with ID 1 and several others with ID 0.
The first partition (ID 1) holds a drive (EFI...) and is marked as active on the original (working) SD card.
On the clone it was not active - Windows 10 IoT booted but drive D: was not included as removable device.
After setting the partition active everything works as expected.
Related
I can see my page get crash(see aw, snap page) with 20% proprobility after 10 mins(otherwise it runs well like forever)
so I tried:
1) CPU and memory check with task manager, and see no increasing(so no leakage).
2) enable crush log in the chrome://settings/
result:
2.1) see still nothing in the chrome://crashes page, not even a crush ID (0 crashes).
2.2) see nothing in the folder under path
C:/%User%/AppData/Local/Google/CrashReports (nothing in) nor
C:/%User%/AppData/Local/Google/Chrome/User Data/Crash Reports (folder not exist)
2.3) but indeed see DMP in the:
C:/%User%/AppData/Local/Google/Chrome/User Data/CrashPads/reports
but seems they are not readable, and it also seems not the correct address for crash logs
3) can get chrome log either by command line arguments, or using sawbuck, but found nothing but only 2 errors, one for sawbuck itself, and another saying can't send the report to google.
So the questions are:
1) are those DMP the crash logs(the default Dir for dump file has been changed for chrome v50)
2) how can I abstract information out of the DMP file, if chrome://crashes page shows nothing (for chrome on windows)
p.s. 2 usage pages are found at https://www.chromium.org/developers/decoding-crash-dumps
https://www.chromium.org/developers/crash-reports
but seems it's not for windows without a recompile of chrome's component, is there any 3rd party tools to interpret the DMP file?
env informations:
chrome version: 50.0.2661.02 m
; Host OS: windows 10
The crash dumps (.dmp files) in C:\Users\<user>\AppData\Local\Google\Chrome\User Data\Crashpad\reports can be read by standard Windows debuggers. WinDbg is one tool (provided by Microsoft) for analysing these dumps; it's not going to win any beauty contents, but it's powerful and gets the job done. The recommended way to obtain it is, somewhat bizarrely, the Windows Driver Kit.
You'll need debugging symbols to make sense of the results, and these aren't included in standard builds of Chrome. To get symbols for both Chrome and the Windows runtime, set the following as your Symbols path:
SRV*c:\symbols*https://msdl.microsoft.com/download/symbols;SRV*c:\symbols*https://chromium-browser-symsrv.commondatastorage.googleapis.com
There are numerous resources on using WinDbg on the web; this cheat sheet contains some useful commands to get you started.
I am using Selenium and Chrome to write a web test, yesterday my Chrome updated to 44 and now my test does not work, I know that it is an issue with Chrome 44 and we need to wait till the new version is given out.
So I am trying to go bake to chrome 43, i do:
1) Uninstall chrome 44
2) Install chrome 43
but as soon as the installation is done it automatically opens the chrome and it is 44 again !! I went to Run->Service.msc and disabled my chrome to update automatically, but it does not work. I remove the Update folder in User->Myname->AppData->Local->Google->Update but it does not work,
and there is nothing related to updating at chrome://plugins.
I AM STUCK
PLEASE HELP :(
I did all sulosion posted on line but non of them worked,
Have spent a loooong time trying to disable updates (literally hours, reading forums and testing various (some exotic) solutions), and this was driving me crazy. But there what seems an infallible solution (see further down).
Even using the official Google page with the templates did NOTHING : https://support.google.com/installer/answer/146164?hl=en
I followed scrupulously the instructions of that page, the keys in the registry are all correct, but still going to the "About Google Chrome" when the program is opened, I can see the wheel going around and a few seconds later the update is forced and done.
I have tried using the standalone installer of Google, on a Windows 8.1 machine 64Bits - and yes all the keys are set to :
Dword: AutoUpdateCheckPeriodMinutes Value: 0
Dword: DisableAutoUpdateChecksCheckboxValue Value: 1
Dword: UpdateDefault Value: 0
Dword: Update{8A69D345-D564-463C-AFF1-A69D9E530F96} Value: 0
... both in HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Update AND HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Policies\Google\Update since it is a 64-bit machine.
So the radical solution to prevent the auto-update, if that helps anyone, is to just purely sort the program responsible for the updates itself! (Just deleting it, OR saving a copy, OR renaming it OR even better just in case I one day need to do an update: Zip the content for future potential re-use).
Easy solution :
1- Go to "C:\Program Files (x86)\Google\ and find the folder "update".
2- There are a couple of options to choose from:
A) first method: Rename the folder:
- Right click > Rename > from Update.bak to Update2.bak for example.
- Now launch Chrome: NO MORE UPDATES!! since it can not find the update program !! Finished.
B) second method: Zip the folder:
- Zip the entire folder by making an archive. (Right click the "Update" folder > Send to Compressed (zip) folder)
- A window might ask you to backup/zip and place it on the desktop, click yes. (message: Windows cannot create the compressed folders here. Do you want to be placed on the desktop instead?)
- Move the newly created zip file to the original location. A new window security might pop up > click continue. (message: You need administrator permission to copy this file). [This will be what to unzip if one day you decide to update Chrome - Just remember that when unzipped it will have the following structure : Update > Update > then all the content of the folder. Remember to move everything from inside the second update folder (copy paste) one level up so that is becomes : Update > then all the content of the folder].
- Now that you have a copy just delete the "Update" folder.
- Now launch Chrome: NO MORE UPDATES!! since it can not find the update program !! Finished.
Good luck and Enjoy.
As per Chromium
Turning off Auto-Updates on Windows
To turn off auto-updates of Google Chrome on Windows, you need to instruct Google Update to not update it. To do this, you can either:
Use the Google Update ADM templates provided on this page or as described in this article.
Set the value of
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Update\AutoUpdateCheckPeriodMinutes
to the REG_DWORD value of "0".
You can check for Mac and Linux in the first Link
To get rid of Chrome 44 and go back to 43 I downloaded a stand-alone version of chrome 43 which is an .exe file and I just double clicked on it and it was installed on my computer WITHOUT updating to Chrome 44, to find the link to Chrome 43 have a look to RobW comments to my question above and if the link is stale you can just Google for Chrome Stand-alone, or go to the bottom of this page Google Chrome 64-bit Offline Installer| 45.7 MB.
Have Fun :)
I'm trying to connect to a smartcard reader form a chrome app using chrome.usb. The permissions in the manifest are set properly and lsusb recognizes the device.
chrome.usb.getDevices detects the device but when I try to open it using chrome.usb.openDevice I get "Failed to open device". I've tried it on both windows 7 with chrome 43 and ubuntu with chrome 42 and got the same result. I've also installed chrome device-info sample app and got the same message.
Is there anything I should be looking at on the device itself? Could it be related to permissions?
First you need to figure out the vendor and product IDs for your device. If you run lsusb it will list the devices on your system in a format like this:
~$ lsusb
Bus {Bus number} Device {device id}: ID {vendorid in hexa}:{product id in hexa} Manufacturer Product
Once you know this information you can create a file in /etc/udev/rules.d/ with the name {deviceid}.rules. Replace {deviceid} with the value obtained from the output up there.
The content should be the following:
SUBSYSTEM=="usb", ATTRS{idVendor}=="vendorid", ATTR{idProduct}=="productid", MODE="0666", GROUP="plugdev"
Replace vendorid and productid with corresponding hexadecimal values obtained by running the command above.
News? I found in chrome://device-log/ the message :
usb_device_impl.cc:259 Failed to open device: Access denied (insufficient permissions)
Is there a tool / process by which I can decompile two .exes (one of which runs on a handheld device, the other which doesn't) so that I can get a glimpse into what differs/what the problem may be?
Of course, seeing that one has "00xA" where the other has "00xB" won't help me. I mean a way to see code that differs, or more likely, a compiled resource or config file difference, or some build option or so?
I'm almost positive the problem has nothing to do with code per se (if/while/switch statements, etc.) but with the project setup.
I cannot compare the working source, as it does not exist - I only have the .exe from which it came. The source I have available is a "reasonable facsimile" of it, but not exactly the same, at least not in project settings and configurations, etc.
UPDATE
Re: this page, I'm not familiar with some of the terminology; specifically, where it talks about a "FLATRELEASEDIR" - WTH?
Will this work to test my CE-bound* .exe on my PC:
Run depends.exe*
Open my CE-bound** .exe
Stare in wonder at the amazing plethora of errata and data
?
*Supposedly not to be confused with "adult diapers"
** "bound" as in, "that's where it's headed"
UPDATE 2
Here's what I see when running Dependency Walker on my app:
...but note my dilemma here.
UPDATE 3
Here's what I did to try to replicate my handheld environment on my PC as best as possible:
I wanted to just copy over the whole dad-burned thing (the entire handheld device representation from Windows Explorer), but it won't let me do that - it's not copyable, so I copied over just the "Program Files" folder (which contains the subfolder of my app and a couple of other folders which I don't know are standard or custom/peculiar to us).
This is from the handheld device where the .exe in question does run properly, so obviously (theoretically?) there should be no missing modules - Dependency Walker should run it and say all is well.
However, it doesn't; I get the same results as the one p[a,o]sted above.
Note: This is true even after selecting "Options > Configure Module Search Order... > The Application Directory > Move Up in Dependency Walker.
So since even an .exe that runs fine tests out as being "not ready for CE-time", how can I use this to accurately test which, if any, necessary files are missing?
Do I need to copy over other folders, too, or what?
UPDATE 4
So, the (supposedly?) missing modules are:
API-MS-WIN-APPMODEL-RUNTIME-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-ERROR-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-ROBUFFER-L1-1-0.DLL
API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL
API-MS-WIN-SHCORE-SCALING-L1-1-1.DLL
DCOMP.DLL
GPSVC.DLL
IESHIMS.DLL
If true, then why does the .exe run on the handheld?
Note: Other folders on the handheld are:
Application Data => only contains "desktop.ini"
BTExplorer
My Documents => contains a "desktop.ini" and several SQLCE databases (*.SDF)
profiles => contains an empty "default" folder
Recycled => contains a single ".lnk" file
Temp => contains a handful of ".tmp" files
Windows => contains a slew of folders and files, including several .DLLs, but none of those listed above
The "Program Files" folder has a ".NET Compact Framework" subfolder, but it is empty.
In the \Windows\AppMgr folder, there are some interesting files, such as:
Microsoft .NET Compact Framework.DAT
Microsoft .NET Compact Framework.DLL
...several other DAT/DLL pairs, including:
Symbol Managed Class Libraries.DAT (no corresponding DLL)
...and even a pair:
SSCS HHS.[DAT,DLL]
-- which is our company acronym (SSCS) and name of the project (HHS)
What generates these? From where are they referenced??
Another possible piece of the puzzle is that the handheld device on which the .exe does not work does not have a \Windows\AppMgr folder, and thus does not have those .DAT/.DLL files listed above...
UPDATE 5
Another oddity:
After reading this: "Files that install in the GAC go in the\Windows directory" in the book "Microsoft .NET Compact Framework" by Andy Wiggly, et al, I tried copying the Windows folder from the handheld device to the spot on my PC below the folder named "3910ProgramFilesFolderCopy" which looks like this in Explorer:
C:
3910ProgramFilesFolderCopy
Program Files
Windows <= tried to copy the "Windows" folder from the handeld on top of "3910ProgramFilesFolderCopy" so it would end up here
...but it only copies a few files before borborygmas occurs (electronic borborygmas, that is) and it tells me, "the system cannot find the file specified"
Heavens to Murgratroid!?! Why does it find some but not all? Looking at the Windows folder on the handheld in Windows Explorer, I see that many of the precious DLLs are greyed out:
Arggh, double-arg, and (&c)
For PC you could try .NET Reflector.
http://www.red-gate.com/products/dotnet-development/reflector/
You may try to use dependency walker to undestand wich DLL/APIs they need and check if those are supported on your device.
http://geekswithblogs.net/WindowsEmbeddedCookbook/archive/2011/02/02/using-dependency-walker.aspx
Help !
(sorry for my bad english).
I have air app, that loads data from sqlite db -> compare -> save to new table.
Debug and release test - (Flash Develop/Flex 4.6 Premium) works file.
Problem - app installed on 32/64 bit win 7, Hangs with "Not responding".
data size - have 1.5-4k rows, 4 columns no more than 200k.
i make a "trace" (on a few db files) over external txt file - result:1971- 1972 rows and ...something crushes.
func.: load -> compare w another data -> add to new array -> load if there is more data.
i found some solution, but it is not the perfect way - additional timer 1ms.
..new array -> check if more data is available -> timer -> load, but it is too slow.
Any ideas ?
Thank you - Best Regards !