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• how to make it easy for users to register at my site?

  - by rob

  I want to make it dirt simple for users coming to my site to register so they can post comments, vote on things, etc. I would like for them to be able to use their facebook id, twitter id, yahoo mail id, gmail id, AIM id, msn id, or whatever else people are likely to have (not necessarily all of those, but the more the better). I want my mom to be able to do it in 30 seconds or less. (that is, no "enter your open id url here" type thing that would confuse her). I prefer they not have to pick a unique name, as that gets annoying as the site gets more users and it gets hard to find one that is unique. What is the best option here? I'm not quite sure about OpenId vs. OAuth, and whether there are other options. And I'd like it to be as simple for me, the developer, as possible (of course!). I don't want to spend forever learning some protocol, nor have to structure my whole app around this. It would be great if there was a site with sample code that is pretty easy to drop in. BTW, StackOverflow is a good example of a site that was easy for me to register for.

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• Externally disabling signals for a Linux program.

  - by Harry

  Hello, On Linux, is it possible to somehow disable signaling for programs externally... that is, without modifying their source code? Context: I'm calling a C (and also a Java) program from within a bash script on Linux. I don't want any interruptions for my bash script, and for the other programs that the script launches (as foreground processes). While I can use a... trap '' INT ... in my bash script to disable the Ctrl C signal, this works only when the program control happens to be in the bash code. That is, if I press Ctrl C while the C program is running, the C program gets interrupted and it exits! This C program is doing some critical operation because of which I don't want it be interrupted. I don't have access to the source code of this C program, so signal handling inside the C program is out of question. #!/bin/bash trap 'echo You pressed Ctrl C' INT # A C program to emulate a real-world, long-running program, # which I don't want to be interrupted, and for which I # don't have the source code! # # File: y.c # To build: gcc -o y y.c # # #include <stdio.h> # int main(int argc, char *argv[]) { # printf("Performing a critical operation...\n"); # for(;;); // Do nothing forever. # printf("Performing a critical operation... done.\n"); # } ./y Regards, /HS

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• What's the deal with the hidden Throw when catching a ThreadAbortException?

  - by priehl

  I'm going through a book of general c# development, and I've come to the thread abort section. The book says something along the lines that when you call Thread.Abort() on another thread, that thread will throw a ThreadAbortException, and even if you tried to supress it it would automatically rethrow it, unless you did some bs that's generally frowned upon. Here's the simple example offered. using System; using System.Threading; public class EntryPoint { private static void ThreadFunc() { ulong counter = 0; while (true) { try { Console.WriteLine("{0}", counter++); } catch (ThreadAbortException) { // Attempt to swallow the exception and continue. Console.WriteLine("Abort!"); } } } static void Main() { try { Thread newThread = new Thread(new ThreadStart(EntryPoint.ThreadFunc)); newThread.Start(); Thread.Sleep(2000); // Abort the thread. newThread.Abort(); // Wait for thread to finish. newThread.Join(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } } The book says: When your thread finishes processing the abort exception, the runtime implicitly rethrows it at the end of your exception handler. It’s the same as if you had rethrown the exception yourself. Therefore, any outer exception handlers or finally blocks will still execute normally. In the example, the call to Join won’t be waiting forever as initially expected. So i wrapped a try catch around the Thread.Abort() call and set a break point, expecting it to hit this, considering the text says "any outer exception handlers or finally blocks will still execute normally". BUT IT DOES NOT. I'm racking my brain to figure out why. Anyone have any thoughts on why this isn't the case? Is the book wrong? Thanks in advance.

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• Why isn't obliterate an essential feature of Subversion?

  - by Dimitri C.

  For some years now, I'm waiting for Subversion to feature a "delete permanently" (obliterate) function. I hesitate to make the transition to Subversion (coming from Visual SourceSafe :p), because I think this is an essential feature, as otherwise I'd expect the repository to grow unstopably. However, for one reason or the other, the feature gets postponed over and over again. So I begin wondering if there is some other feature or workaround which makes the obliterate function dispensable. What do you do when you want to shrink the SVN central repository? Example 1: I check in a large third party library, and after a few weeks I realize it is not suited for my needs. I don't want that to store and backup that large amount of data forever. Example 2: I have 10 versions of 10 big third party libraries in the repository, but I only use the latest versions. Example 3: I accidentally checked in sensitive information (as suggested by John). Example 4: I accidentally checked in some big files that were never meant to be put in the repository.

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• How can I prevent infinite recursion when using events to bind UI elements to fields?

  - by Billy ONeal

  The following seems to be a relatively common pattern (to me, not to the community at large) to bind a string variable to the contents of a TextBox. class MyBackEndClass { public event EventHandler DataChanged; string _Data; public string Data { get { return _Data; } set { _Data = value; //Fire the DataChanged event } } } class SomeForm : // Form stuff { MyBackEndClass mbe; TextBox someTextBox; SomeForm() { someTextBox.TextChanged += HandleTextBox(); mbe.DataChanged += HandleData(); } void HandleTextBox(Object sender, EventArgs e) { mbe.Data = ((TextBox)sender).Text; } void HandleData(Object sender, EventArgs e) { someTextBox.Text = ((MyBackEndClass) sender).Data; } } The problem is that changing the TextBox fires the changes the data value in the backend, which causes the textbox to change, etc. That runs forever. Is there a better design pattern (other than resorting to a nasty boolean flag) that handles this case correctly? EDIT: To be clear, in the real design the backend class is used to synchronize changes between multiple forms. Therefore I can't just use the SomeTextBox.Text property directly. Billy3

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• Another php array looping question

  - by Dan

  Been battling with this one for what seems, like forever. I have an array: $url_array It contains this info: Array ( [ppp] => Array ( [0] => stdClass Object ( [id] => 46660 [entity_id] => 0 [redirect_url] => http://www.google.com [type] => Image ) [1] => stdClass Object ( [id] => 52662 [entity_id] => 0 [pixel_redirect_url] => http://www.yahoo.com [type] => Image ) [2] => stdClass Object ( [id] => 53877 [entity_id] => 0 [redirect_url] => http://www.msn.com [pixel_type] => Image ) ) [total_count] => 3 ) I need to loop through it, and do things to each variable. I can get this to work: foreach ($piggies_array as $key => $value) { $id = $value[0]->id; $redirect_url = $value[0]->redirect_url; } Not unsurprisingly, it's only echoing the first value of those variables, but no matter what I try I cannot get it to loop through: $value->redirect_url; $value=>redirect_url; I would appreciate any help.

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• PHP memory exhausted when running through thousands of records

  - by James Skidmore

  I'm running the following code over a set of 5,000 results. It's failing due to the memory being exhausted. foreach ($data as $key => $report) { $data[$key]['data'] = unserialize($report['serialized_values']); } I know I can up the memory limit, but I'd like to run this without a problem instead. I'm not going to be able to keep upping the memory forever. EDIT The $data is in this format: [1] => Array ( [0] => 127654619178790249 [report_id] => 127654619178790249 [1] => 1 [user_id] => 1 [2] => 2010-12-31 19:43:24 [sent_on] => 2010-12-31 19:43:24 [3] => [fax_trans_id] => [4] => 1234567890 [fax_to_nums] => 1234567890 [5] => ' long html string here', [html_content] => 'long html string here', [6] => 'serialization_string_here', [serialized_values] => 'serialization_string_here', [7] => 70 [id] => 70 )

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• VSTO Outlook - Contact iteration is SO SLOW!

  - by DustinDavis

  I'm working on an outlook add-in and I have a dialog window that allows the user to select contacts. I havent been able to find a way to use the outlook contact window so I am looping through the ContactFolder.Items and doing my work that way. The problem is that I have to handle up to 70K contacts. I tried multi-threading and many other things but it is just so slow. It takes 15 seconds to load 30k contacts. I can load and bind 500k POCO objects in milliseconds but when I need to get the contact items from outlook it just takes forever. The problem seems to be when you actually need to get a property from the contactitem it has to fetch it from the database or something. Is there a contact cache I can pull from? I only need Display and Email, nothing else. An ID would be nice but I don't need it. Can someone please tell me a better way of getting contacts from outlook or at least tell me how to open the outlook contact selection window? I was able to find code to open it but it wont let me because I'm showing a modal dialog and it wont open if there is a modal open.

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• Criteria for triggering garbage collection in .Net

  - by Kennet Belenky

  I've come across some curious behavior with regard to garbage collection in .Net. The following program will throw an OutOfMemoryException very quickly (after less than a second on a 32-bit, 2GB machine). The Foo finalizer is never called. class Foo { static Dictionary<Guid, WeakReference> allFoos = new Dictionary<Guid, WeakReference>(); Guid guid = Guid.NewGuid(); byte[] buffer = new byte[1000000]; static Random rand = new Random(); public Foo() { // Uncomment the following line and the program will run forever. // rand.NextBytes(buffer); allFoos[guid] = new WeakReference(this); } ~Foo() { allFoos.Remove(guid); } static public void Main(string args[]) { for (; ; ) { new Foo(); } } } If the rand.nextBytes line is uncommented, it will run ad infinitum, and the Foo finalizer is regularly invoked. Why is that? My best guess is that in the former case, either the CLR or the Windows VMM is lazy about allocating physical memory. The buffer never gets written to, so the physical memory is never used. When the address space runs out, the system crashes. In the latter case, the system runs out of physical memory before it runs out of address space, the GC is triggered and the objects are collected. However, here's the part I don't get. Assuming my theory is correct, why doesn't the GC trigger when the address space runs low? If my theory is incorrect, then what's the real explanation?

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• jQuery Validation Plugin ErrorPlacement inside two different elements

  - by Andy Poquette

  I'm trying to place separate error messages in separate elements when validating a large form. The form is divided into jQueryUI tabs, then accordions. When there is an error in an element of a tab, I want to append a red exclamation point to the name of the tab, and if the error is in an accordion element, I also want to append the red exclamation point to the name of the accordion element. Subsequently, when the errors are corrected, I would like those red ! to be removed (exactly as the error message beneath the invalid field is removed. So: Tab1 Tab2 Accordion1 Accordion2 Tab3 If the elements in accordion 2 have an error, I want to append a red ! to accordion2 and tab2: Tab1 Tab2! Accordion1 Accordion2! Tab3 Then remove when the elements successfully validate. I've been trying forever, but I can't figure out how to conditionally change the errorElement (a label won't work for the tab and accordion, but is perfect for the actual element)... Hopefully this makes sense, and thanks for any input you can provide.

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• Chat app vs REST app - use a thread in an Activity or a thread in a Service?

  - by synic

  In Virgil Dobjanschi's talk, "Developing Android REST client applications" (link here), he said a few things that took me by surprise. Including: Don't run http queries in threads spawned by your activities. Instead, communicate with a service to do them, and store the information in a ContentProvider. Use a ContentObserver to be notified of changes. Always perform long running tasks in a Service, never in your Activity. Stop your Service when you're done with it. I understand that he was talking about a REST API, but I'm trying to make it fit with some other ideas I've had for apps. One of APIs I've been using uses long-polling for their chat interface. There is a loop http queries, most of which will time out. This means that, as long as the app hasn't been killed by the OS, or the user hasn't specifically turned off the chat feature, I'll never be done with the Service, and it will stay open forever. This seems less than optimal. Long question short: For a chat application that uses long polling to simulate push and immediate response, is it still best practice to use a Service to perform the HTTP queries, and store the information in a ContentProvider?

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• What rules govern cross-version compatibility for .NET applications and the C# language?

  - by John Feminella

  For some reason I've always had trouble remembering the backwards/forwards compatibility guarantees made by the framework, so I'd like to put that to bed forever. Suppose I have two assemblies, A and B. A is older and references .NET 2.0 assemblies; B references .NET 3.5 assemblies. I have the source for A and B, Ax and Bx, respectively; they are written in C# at the 2.0 and 3.0 language levels. (That is, Ax uses no features that were introduced later than C# 2.0; likewise Bx uses no features that were introduced later than 3.0.) I have two environments, C and D. C has the .NET 2.0 framework installed; D has the .NET 3.5 framework installed. Now, which of the following can/can't I do? Running: run A on C? run A on D? run B on C? run C on D? Compiling: compile Ax on C? compile Ax on D? compile Bx on C? compile Bx on D? Rewriting: rewrite Ax to use features from the C# 3 language level, and compile it on D, while having it still work on C? rewrite Bx to use features from the C# 4 language level on another environment E that has .NET 4, while having it still work on D?' Referencing from another assembly: reference B from A and have a client app on C use it? reference B from A and have a client app on D use it? reference A from B and have a client app on C use it? reference A from B and have a client app on D use it? More importantly, what rules govern the truth or falsity of these hypothetical scenarios?

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• Sorting text and attached images in MFMailCompositeViewController?

  - by eOgas

  In the app I'm currently writing I'd like to populate the message body of an e-mail with a combination of text and images. It took me forever to find out that in order to get an embedded image, you had to have bold tags in the message body (...uhhh, yeah), otherwise the image just shows up as an attachment. But now I have the problem that all of the images just go to the end of the body, and I can't programmatically put text after or in between any of the attachments. So far I've tried: Adding images as part of the body string using tags and a base64 string. This would have worked, but most e-mail clients reject images embedded in this manner. Using normal tags with a references to the attached files, using the assigned filenames. Didn't work at all. Attaching images normally, but also attaching blocks of text to the e-mail. The text is not embedded in the same manner as the images. Turns out to be an attached txt file on the receiving end. Apple has restricted their MFMailComposieViewController class to the point of ridiculousness, but I know there has to be a way to do this, because they add in their stupid "Sent from my *apple device name here*" message at the end of every e-mail. So does anyone have any ideas?

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• Security benefits from a second opinion, are there flaws in my plan to hash & salt user passwords vi

  - by Tchalvak

  Here is my plan, and goals: Overall Goals: Security with a certain amount of simplicity & database-to-database transferrability, 'cause I'm no expert and could mess it up and I don't want to have to ask a lot of users to reset their passwords. Easy to wipe the passwords for publishing a "wiped" databased of test data. (e.g. I'd like to be able to use a postgresql statement to simply reset all passwords to something simple so that testers can use that testing data for themselves). Plan: Hashing the passwords Account creation records the original email that an account is created with, forever. A global salt is used, e.g. "90fb16b6901dfceb73781ba4d8585f0503ac9391". An account specific salt, the original email the account was created with, is used, e.g. "[email protected]". The users's password is used, e.g. "password123" (I'll be warning against weak passwords in the signup form) The combination of the global salt, account specific salt, and password is hashed via some hashing method in postgresql (haven't been able to find documentation for hashing functions in postgresql, but being able to use sha-2 or something like that would be nice if I could find it). The hash gets stored in the database. Recovering an account To change their password, they have to go through standard password reset (and that reset email gets sent to the original email as well as the most recent account email that they have set). Flaws? Are there any flaws with this that I need to address? And are there best practices to doing hashing fully within postgresql?

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• detection of 'flush tables with read lock' in php

  - by theduke0

  I would like to know from my application if a myisam table can accept writes (i.e. not locked). If an exception is thrown, everything is fine as I can catch this and log the failed statement to a file. However, if a 'flush tables with read lock' command has been issued (possibly for backup), the query I send will pretty much hang out forever. If one table is locked at a time, insert delayed works well. But when this global lock is applied, my query just waits. The query I run is an insert statement. If this statement fails or hangs, user experience is degraded. I need a way to send the query to the server and forget about it (pretty much). Does anyone have any suggestions on how to deal with this? -set a query timeout? -run asyncronous request and allow for the lock to expire while application continues? -fork my php process? Please let me know if I can provide and clarification or details.

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• How does git fetches commits associated to a file ?

  - by liadan

  I'm writing a simple parser of .git/* files. I covered almost everything, like objects, refs, pack files etc. But I have a problem. Let's say I have a big 300M repository (in a pack file) and I want to find out all the commits which changed /some/deep/inside/file file. What I'm doing now is: fetching last commit finding a file in it by: fetching parent tree finding out a tree inside recursively repeat until I get into the file additionally I'm checking hashes of each subfolders on my way to file. If one of them is the same as in commit before, I assume that file was not changed (because it's parent dir didn't change) then I store the hash of a file and fetch parent commit finding file again and check if hash change occurs if yes then original commit (i.e. one before parent) was changing a file And I repeat it over and over until I reach very first commit. This solution works, but it sucks. In worse case scenario, first search can take even 3 minutes (for 300M pack). Is there any way to speed it up ? I tried to avoid putting so large objects in memory, but right now I don't see any other way. And even that, initial memory load will take forever :( Greets and thanks for any help!

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• http connection timeout issues

  - by Mark

  I'm running into an issue when i try to use the HttpClient connecting to a url. The http connection is taking a longer time to timeout, even after i set a connection timeoout. int timeoutConnection = 5000; HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); int timeoutSocket = 5000; HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); It works perfect most of the time. However, every once in while, the http connection runs for ever and ignore the setconnectiontimeout, especailly when the phone is connected to wifi, and the phone was idling. So after the phone is idling, the first time i try to connect, the http connection ignores the setconnectiontimeout and runs forever, after i cancel it and try again, it works like charm everytime. But that one time that doesn't work it creates a threadtimeout error, i tried using a different thread, it works, but i know that the thread is running for long time. I understand that the wifi goes to sleep on idle, but i dont understand why its ignoring the setconnectiontimeout. Anyone can help, id really appreciated.

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• Refresh page using cache

  - by cbh

  I am trying to refresh a page, but WANT to use the cache and can't figure out how to do this. There are two situations: If I click in the URL bar and hit enter (or visit the page from somewhere else) it reloads the page/images from the cache. GREAT! If I click on the refresh button or use Javascript to refresh the page it grabs all the images again and takes forever. NOT GREAT! I've tried: top.location.reload(false); and top.location.reload(true); (I'm sending this from in an iFrame) and neither used the cache. I'm avoiding using location so it doesn't end up in the browser history twice. Question: How do I reload the page using the cached images? Is there a different javascript function or is this a mod_expires issue? Thanks for any help in advance! EDIT: (info from chrome: developer tools) When navigating to the page I get "From Cache" for all images When refreshing page I get "304 - Not Modified" for all images (and it takes the time to download each)

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• Help with HTTP Intercepting Proxy in Ruby?

  - by Philip

  I have the beginnings of an HTTP Intercepting Proxy written in Ruby: require 'socket' # Get sockets from stdlib server = TCPServer.open(8080) # Socket to listen on port 8080 loop { # Servers run forever Thread.start(server.accept) do |client| puts "** Got connection!" @output = "" @host = "" @port = 80 while line = client.gets line.chomp! if (line =~ /^(GET|CONNECT) .*(\.com|\.net):(.*) (HTTP\/1.1|HTTP\/1.0)$/) @port = $3 elsif (line =~ /^Host: (.*)$/ && @host == "") @host = $1 end print line + "\n" @output += line + "\n" # This *may* cause problems with not getting full requests, # but without this, the loop never returns. break if line == "" end if (@host != "") puts "** Got host! (#{@host}:#{@port})" out = TCPSocket.open(@host, @port) puts "** Got destination!" out.print(@output) while line = out.gets line.chomp! if (line =~ /^<proxyinfo>.*<\/proxyinfo>$/) # Logic is done here. end print line + "\n" client.print(line + "\n") end out.close end client.close end } This simple proxy that I made parses the destination out of the HTTP request, then reads the HTTP response and performs logic based on special HTML tags. The proxy works for the most part, but seems to have trouble dealing with binary data and HTTPS connections. How can I fix these problems?

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• How to multi-thread this?

  - by WilliamKF

  I wish to have two threads. The first thread1 occasionally calls the following pseudo function: void waitForThread2() { if (thread2 is not idle) { return; } notifyThread2IamReady(); while (thread2IsExclusive) { } } The second thread2 is forever in the following pseudo loop: for (;;) { Notify thread1 I am idle. while (!thread1IsReady()) { } Notify thread1 I am exclusive. Do some work while thread1 is blocked. Notify thread1 I am busy. Do some work in parallel with thread1. } What is the best way to write this such that both thread1 and thread2 are kept as busy as possible on a machine with multiple cores. I would like to avoid long delays between notification in one thread and detection by the other. I tried using pthread condition variables but found the delay between thread2 doing 'notify thread1 I am busy' and the loop in waitForThread2() on thear2IsExclusive() can be up to almost one second delay. I then tried using a volatile sig_atomic_t shared variable to control the same, but something is going wrong, so I must not be doing it correctly.

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• System.Threading.Timer won't trigger

  - by mijatovic

  Hello guys, I am new here... I have one question, if somebody can help me. It is about timers (System.Threading.Timer). I want to break inevitable recursion: I have two columns in datarow and they are mutually dependant (price_without_VAT and price_with_VAT). Setting one of them will definitely cause StackOverflowException. So here's the idea: bool flag = true; void Reset(object state) { flag = true; } Now, wrap the method for changing value of one of the columns: { if(flag) { flag = false; System.Threading.Timer tmr = new System.Threading.Timer(new System.Threading.TimerCallback(Reset), null, 10, System.Threading.Timeout.Infinite); datarow.other_column = value; } } datarow.other_column.value line will immediately trigger the above method, but there will be no recursion because flag is false. In 10 ms flag should be back to true, and everything is back to normal. Now, when i follow the code in DEBUGGER, everything works fine, but when I start app NORMALLY Reset function simply will not trigger, flag is stuck to false forever and everything false apart. I play around with due_time parameter but nothing seems to help. Any ideas?

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• How to reinstall OEM Windows 98 SE?

  - by Sammy

  I'm trying to install Windows 98 SE on an old PC and it's not going well. I run into this problem. Searching for Boot Record from Floppy..OK Starting Windows 98... TOSHIBA Enhanced-IDE CD/DVD-ROM Device Driver (ATAPI) Version 2.24 (C)Copyright Toshiba Corp. 1995-1999. All rights reserved. Device Name : TOSCD001 Number of units : 1 MSCDEX Version 2.25 Copyright (C) MIcrosoft Corp. 1986-1995. All rights reserved. Drive Z: = Driver TOSCD001 unit 0 TOSHIBA MACHINE Invalid drive specification Path not found - C:\TOOLS\CDROMDRV.SYS Invalid drive specification Invalid drive specification After that last line, it leaves me at a bitmap image displaying instructions to reboot with Ctrl+Alt+Del. It doesn't say why I have to reboot, and it doesn't state any error type, it just want's me to reboot for no apparent reason. After reboot, it just boots up from Floppy again and it cycles through the same thing all over again. The computer has been restored to original specification. Original system recovery "CD-ROM" discs are available and they are not scratched or anything, they are in very good condition. It's a set of 3 CDs, and the first disc labeled "1/3" should be the one holding the OEM version of Windows 98 SE. There is also a boot disk for Windows 98. I'm not sure what the other two discs are for. This computer came with three language support, so those could be holding different language versions or additional OEM discs. But I'm quite sure that the first disc holds the main operating system. BIOS has been set to optimized defaults. Boot priority is as follows; Floppy, IDE-0, CD-ROM. Under Standard CMOS settings, BIOS scans and autoconfigures both the hard drive and the CD/DVD drive. On POST it finds them both, and it finds the DOS bootdisk and starts preparing for installation, as you can see above. So what's this "invalid drive specification" about? Why isn't the installation starting? Updates Update 1 Booting from CD disc 2 In desperation I tried booting from the second CD. Boot order was; Floppy, CD-ROM, IDE-0. It boots normally from floppy disk, just like above, but then returns following. File not found - Z:\3LNGINST\TOOLS\PARTINFO.TXT I accidentally pressed some key on the keyboard, and before I knew it, the following screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Verifying drive integrity, 16% complete. After completion another screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Do you wish to use the maximum available size for a Primary DOS Partition and make the partition active (Y/N)?....................? [Y] Verifying drive integrity, 7% complete. I didn't choose Yes, it was set automatically. After completion the computer was automatically rebooted. Then I got a new screen. This is in Norwegian/Swedish/Finnish. Here's the message in Swedish. Hårddisken är inte klar för återställning av programvara. Installationsprogrammet måste skapa nya partitioner (C:, D:, ...). VARNING! ALLT INNEHÅLL PÅ HÅRDDISKEN KOMMER ATT RADERAS! Tryck på en tangent om du vill fortsätta (eller CTRL-C för att avbryta). Let me translate that. Hard drive is not ready for restoring the software. Setup program has to create new partitions (C:, D:, ...). WARNING! ALL CONTENTS ON THE HARD DRIVE WILL BE ERASED! Press any key to continue (or CTRL-C to cancel). I pressed Enter and it started formatting the hard drive. WARNING, ALL DATA ON NON-REMOVABLE DISK DRIVE c: WILL BE LOST! Proceed with Format (Y/N)?y Formatting 14,67.53M 1 percent completed. It automatically sets the "y" option and starts formatting. Rebooting with CD disc 1 After completing this operation it rebooted automatically. I inserted CD disc 1 and there was no issue with "invalid drive specification" anymore. Instead, a bitmap menu was displayed where it asked me to choose a language. And I thought I had it there for a while but it didn't work out. After choosing the language, another menu was displayed asking me to choose a type of recovery (restore pre-installed software OR restore hard drive partitions and pre-installed software). I opted for the second option. Then a data destruction warning showed up where I just pressed 1 to Continue. It did something and then just rebooted and the same formatting screen shows up as before. So something is not right. Am I doing it wrong? I seem to have come past the CD-ROM driver issue at least. But now I'm stuck with this problem... it seems to have something to do with the hard drive. Like... why is is it always trying to format it? Isn't it enough to format it once? By the way, it needs to be formatted as FAT32, right? Windows 98 doesn't support NTFS? I think FDISK should have taken care of this already. I know this is an old hard drive, but I connected to my main computer and it was able to read and write to it without a problem. It does have bad sectors though, but it's expected on an old hard drive like this. Any ideas?.. Update 2 I seem to be repeatedly getting stuck at the format screen where it asks to press any key to continue. So tried to cancel it this time with Ctrl+C. This leaves me at: A:\TOOLS> I can do DIR and CD and I tried to change to Z: drive. I tried running "setup" but there is no such thing. Z:\>setup Bad command or file name Update 3 Floppy structure Here's the file/folder structure of the floppy disk. A:\>dir /s Volume in drive A has no label. Volume Serial Number is 1700-1069 Directory of A:\ 1999-10-11 10:44 <DIR> BMP 1998-05-11 22:01 93 880 COMMAND.COM 1999-10-11 10:44 <DIR> factory 1999-10-11 10:44 <DIR> lang 1999-10-11 10:44 <DIR> TOOLS 2000-05-19 15:32 339 CONFIG.SYS 1999-10-26 13:38 0 BOOTLOG.TXT 2000-06-08 08:32 3 691 AUTOEXEC.BAT 4 File(s) 97 910 bytes Directory of A:\BMP 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 0 File(s) 0 bytes Directory of A:\factory 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 2000-06-08 13:09 2 662 3LNGINSF.BAT 1 File(s) 2 662 bytes Directory of A:\lang 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-11-24 08:02 49 575 FORMAT.COM 1998-11-24 08:02 63 900 FDISK.EXE 2 File(s) 113 475 bytes Directory of A:\TOOLS 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-05-06 22:01 49 575 FORMAT.COM 1995-10-27 20:29 28 164 BMPVIEW.EXE 1999-01-26 15:54 15 MAKEPA32.TXT 1998-05-06 22:01 3 878 XCOPY.EXE 1998-05-06 22:01 41 472 XCOPY32.MOD 1998-05-06 22:01 33 191 HIMEM.SYS 1998-05-06 22:01 125 495 EMM386.EXE 1998-05-06 22:01 18 967 SYS.COM 1996-01-31 21:55 18 CLK.COM 1994-04-02 08:20 22 HARDBOOT.COM 1999-02-03 15:46 15 MAKEPA16.TXT 1999-04-14 16:36 7 840 PARTFO32.EXE 2000-05-19 15:01 1 169 PARTFORM.BAT 1996-10-02 01:47 1 642 MBRCLR.COM 1999-07-01 11:58 8 175 BIOSCHKN.EXE 1998-06-23 08:55 5 904 PAR-TYPE.EXE 1998-11-24 08:02 29 271 MODE.COM 1998-11-24 08:02 15 252 ATTRIB.EXE 1998-11-24 08:02 19 083 DELTREE.EXE 1999-04-21 15:01 23 304 NTBB.EXE 1997-05-07 14:19 1 SYS.TXT 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-11 20:01 34 566 KEYBOARD.SYS 1998-05-11 20:01 19 927 KEYB.COM 1999-10-26 14:31 910 partinfo.txt 1998-06-16 15:58 5 936 CHKDRVAC.EXE 1998-05-06 22:01 63 900 FDISK.EXE 1998-05-06 22:01 45 379 SMARTDRV.EXE 1992-12-03 19:48 10 695 SCISET.EXE 1997-06-25 15:49 6 YENT 1998-05-06 22:01 25 473 MSCDEX.EXE 1998-05-06 22:01 5 239 CHOICE.COM 1997-07-18 17:41 6 876 MBR.COM 1997-07-01 15:01 6 545 CHK2GB.COM 1998-06-10 20:04 8 128 PARTFORM.EXE 1990-01-04 02:09 19 MAKEPAR2.TXT 1990-01-04 01:00 27 MAKEPAR3.TXT 1990-01-04 01:00 27 MAKEPAR4.TXT 1998-02-13 13:47 15 MAKEPART.TXT 1999-04-14 13:47 5 200 DISKSIZE.EXE 1999-05-06 14:56 7 856 PARTFO16.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 42 File(s) 734 463 bytes Total Files Listed: 49 File(s) 948 510 bytes 12 Dir(s) 268 800 bytes free A:\> CONFIG.SYS contents Here's the content of CONFIG.SYS. DEVICE=A:\TOOLS\HIMEM.SYS /TESTMEM:OFF REM I=B000-B7ff for Desktop BIOSes rem DEVICE=A:\TOOLS\EMM386.EXE NOEMS I=B000-B7ff x=C000-D000 DEVICE=A:\TOOLS\EMM386.EXE NOEMS x=C000-D000 DEVICE=A:\TOOLS\CDROMDRV.SYS /D:TOSCD001 BUFFERS=10 FILES=69 DOS=HIGH,UMB STACKS=9,256 LASTDRIVE=Z SWITCHES=/F SHELL=A:\COMMAND.COM /P /E:2048 AUTOEXEC.BAT contents :BEGIN @ECHO OFF PATH=A:\;A:\TOOLS; MSCDEX /D:TOSCD001 /L:Z /M:10 smartdrv 1024 128 SET TOOLS=A:\TOOLS SET COMSPEC=A:\COMMAND.COM SET EXITDRIVE=C: SET EXITPATH=\ CALL Z:\SETENV.BAT > NUL :TOSHCHK BIOSChkN IF NOT ERRORLEVEL 1 goto C_ACCESS BMPVIEW Z:\3LNGINST\BMP\NO_TOSP3.bmp /X=120 /Y=80 PAUSE > NUL SET EXITDRIVE=A: GOTO END :C_ACCESS CALL PARTFORM.BAT :C_EMPTY IF EXIST C:\*.* GOTO C_NOTEMPTY call z:\setenv.bat>nul goto PREPDU :C_NOTEMPTY REM ------------------MENU------------------------ :STARTMENU CLS BMPVIEW Z:\3LNGINST\BMP\LANGSELC.BMP /X=120 /Y=120 CLK CHOICE /C:123 /N >NUL REM L is the language that is selected IF ERRORLEVEL 1 SET L=%LNG1% IF ERRORLEVEL 2 SET L=%LNG2% IF ERRORLEVEL 3 SET L=%LNG3% SET BMP=BMP%L% BMPVIEW Z:\3LNGINST\%bmp%\HDDMENU.BMP /X=72 /Y=82 CLK CHOICE /C:129F /N > NUL IF ERRORLEVEL 4 GOTO FACTORY_MENU IF ERRORLEVEL 3 GOTO EXIT_MENU IF ERRORLEVEL 2 GOTO PARTFORM_MENU IF ERRORLEVEL 1 GOTO FORMAT_MENU GOTO END :FACTORY_MENU BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMATF GOTO END :EXIT_MENU BMPVIEW Z:\3LNGINST\%bmp%\9.bmp /XC /X=96 /Y=267 choice /C:1pause /T:1,01 >nul SET EXITDRIVE=A: SET EXITPATH=\lang cls mode mono rem keyb xx>nul cls GOTO END :PARTFORM_MENU BMPVIEW Z:\3LNGINST\%bmp%\2.bmp /XC /X=96 /Y=216 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\partform.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO PART_FORM SET EXITDRIVE=A: GOTO END :FORMAT_MENU BMPVIEW Z:\3LNGINST\%bmp%\1.bmp /XC /X=96 /Y=165 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMAT SET EXITDRIVE=A: GOTO END REM ------------------ MENU END ------------------------ :FORMAT bmpview Z:\3LNGINST\%bmp%\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul CLS IF (%QFORMAT%)==(NO) GOTO FULLFO FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU :FULLFO FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU :FORMATF CLS IF (%QFORMAT%)==(NO) GOTO FULLFO_F FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU_F :FULLFO_F FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU_F :PART_FORM bmpview Z:\3LNGINST\bmp\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul MBR /! HARDBOOT REM ====================== Triple Select ====================== :PREPDU XCOPY z:\3LNGINST\*.* C:\*.* /E /S /V >NUL ATTRIB -H -R -S C:\TOOLS\CDROMDRV.SYS COPY A:\TOOLS\CDROMDRV.SYS C:\TOOLS /Y SYS C: >NUL goto REBOOT :PREPDU_F copy A:\TOOLS\SMARTDRV.EXE C:\ /Y ATTRIB -H -R -S C:\SMARTDRV.EXE copy A:\FACTORY\3LNGINSF.bat c:\ c:\3LNGINSF.bat cls REM ====================== Dual Select END ====================== REM --------------- END ------------------ :REBOOT SMARTDRV.EXE /C bmpview Z:\3LNGINST\BMP\reboot3.bmp /X=120 /Y=140 :FOREVER pause >nul goto FOREVER :END SMARTDRV.EXE /C %EXITDRIVE% cd %EXITPATH% echo on CD structure S:\>dir /s Volume in drive S is T3ELK4SC Volume Serial Number is 2042-5BC9 Directory of S:\ 2000-08-22 14:14 <DIR> 3LNGINSF 2000-08-22 14:14 <DIR> 3LNGINST 2000-06-15 15:57 <DIR> CRC 2000-06-15 12:04 387 667 767 T310C1NO.W98 2000-09-07 15:36 273 setenv.BAT 2 File(s) 387 668 040 bytes Directory of S:\3LNGINSF 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-10-27 10:51 1 806 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-05-19 15:29 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 2 071 bytes Directory of S:\3LNGINSF\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 12 File(s) 626 416 bytes Directory of S:\3LNGINSF\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINSF\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-07-06 14:49 3 593 3LNGINST.BAT 1998-11-24 08:02 15 252 ATTRIB.EXE 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-11-24 08:02 19 083 DELTREE.EXE 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 20 File(s) 490 603 bytes Directory of S:\3LNGINSF\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\3LNGINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-05-31 09:51 1 576 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-08-22 14:14 <DIR> Bmpfin 2000-08-22 14:14 <DIR> Bmpnor 2000-08-22 14:14 <DIR> Bmpswe 2000-05-19 15:30 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 1 841 bytes Directory of S:\3LNGINST\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-06 14:08 40 518 Reboot3.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 2000-07-05 13:52 48 118 langselc.bmp 2000-07-05 11:47 57 318 no_tosp3.bmp 15 File(s) 772 370 bytes Directory of S:\3LNGINST\Bmpfin 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 2000-03-08 15:02 78 486 Hddmenu.bmp 2000-03-08 15:31 25 318 No_tospc.bmp 2000-03-08 15:37 36 518 PARTFORM.BMP 2000-03-08 15:42 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpnor 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-05 13:26 78 486 Hddmenu.bmp 1998-07-13 11:36 25 318 No_tospc.bmp 1998-07-13 11:41 36 518 PARTFORM.BMP 1998-07-13 11:45 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpswe 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-06 08:14 78 486 Hddmenu.bmp 1998-07-10 16:25 25 318 No_tospc.bmp 1998-07-10 16:29 36 518 PARTFORM.BMP 1998-07-10 17:08 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINST\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 14:52 3 898 3LNGINST.BAT 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 2000-07-06 14:41 910 PARTINFO.TXT 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 19 File(s) 457 483 bytes Directory of S:\3LNGINST\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\CRC 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-06-15 12:07 181 422 T310C1NO.ALL 2000-06-15 12:09 215 427 T310C1NO.CRC 2000-06-15 12:07 2 157 T310C1NO.HID 3 File(s) 399 006 bytes Total Files Listed: 104 File(s) 391 625 352 bytes 42 Dir(s) 0 bytes free S:\> Now which line or lines need to be changed? Do I really have to change drive letter Z: to C:? Proposed solutions Solution #1 Ramhound proposed to change the boot order to following; CD-ROM, IDE-0, Floppy This didn't help. In fact, here is the result of it. Searching for Boot Record from CDROM..Not Found Searching for Boot Record from IDE-0.. OK Missing operating system Any other ideas?... Solution #2 Rik proposed to run Z:\setup. Now that I have found a way to drop to DOS prompt with Ctrl+C as described above (Update 2), I did try running setup but there is no such command or file in there. So that didn't work.

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• openstack, bridging, netfilter and dnat

  - by Craig Sanders

  In a recent upgrade (from Openstack Diablo on Ubuntu Lucid to Openstack Essex on Ubuntu Precise), we found that DNS packets were frequently (almost always) dropped on the bridge interface (br100). For our compute-node hosts, that's a Mellanox MT26428 using the mlx4_en driver module. We've found two workarounds for this: Use an old lucid kernel (e.g. 2.6.32-41-generic). This causes other problems, in particular the lack of cgroups and the old version of the kvm and kvm_amd modules (we suspect the kvm module version is the source of a bug we're seeing where occasionally a VM will use 100% CPU). We've been running with this for the last few months, but can't stay here forever. With the newer Ubuntu Precise kernels (3.2.x), we've found that if we use sysctl to disable netfilter on bridge (see sysctl settings below) that DNS started working perfectly again. We thought this was the solution to our problem until we realised that turning off netfilter on the bridge interface will, of course, mean that the DNAT rule to redirect VM requests for the nova-api-metadata server (i.e. redirect packets destined for 169.254.169.254:80 to compute-node's-IP:8775) will be completely bypassed. Long-story short: with 3.x kernels, we can have reliable networking and broken metadata service or we can have broken networking and a metadata service that would work fine if there were any VMs to service. We haven't yet found a way to have both. Anyone seen this problem or anything like it before? got a fix? or a pointer in the right direction? Our suspicion is that it's specific to the Mellanox driver, but we're not sure of that (we've tried several different versions of the mlx4_en driver, starting with the version built-in to the 3.2.x kernels all the way up to the latest 1.5.8.3 driver from the mellanox web site. The mlx4_en driver in the 3.5.x kernel from Quantal doesn't work at all) BTW, our compute nodes have supermicro H8DGT motherboards with built-in mellanox NIC: 02:00.0 InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0) we're not using the other two NICs in the system, only the Mellanox and the IPMI card are connected. Bridge netfilter sysctl settings: net.bridge.bridge-nf-call-arptables = 0 net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-call-ip6tables = 0 Since discovering this bridge-nf sysctl workaround, we've found a few pages on the net recommending exactly this (including Openstack's latest network troubleshooting page and a launchpad bug report that linked to this blog-post that has a great description of the problem and the solution)....it's easier to find stuff when you know what to search for :), but we haven't found anything on the DNAT issue that it causes.

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• installing windows XP in Samsung SENS 145 plus notebook (no CD drive)

  - by user13267

  Hi I was trying to install Windows XP in a Samsung SENS 145 plus Notebook. It does not have a cd drive and I already managed to format it and semi install Windows XP, so now it does not even boot up either. This is what I did: Since it supports USB booting, I first made a bootable USB of Windows XP (Korean version; SP2 I think, may be SP 3) using Novicorp WinToFlash enter link description here. It managed to boot up at first and I was able to format the C driveand get Windows install to start up. It took forever to copy all the files from the USB and after the first reboot, before installation started, I cancelled the reboot from windows install, went to BIOS and changed the boot device priority from USB to internal hard drive. But now on bootup it showed me a list with two options for booting windows XP (much like in the case of a multi OS system) so I assumed that I had formatted drive D by mistake and installed XP there, instead of on C drive. Anyway, I chose one of them and it continued my Windows installation. I got the blue installation screen that shows ads about Windows XP on the right frame and estimated remaining time on the left. However, after completing the process, after the first reboot, instead of showing the Windows XP logo, it says \system32\hall.dll is missing (or corrupted I'm not sure, I needed to install the Korean version of windows and I could not exactly read the error message, however it was one that I have already seen in an English version installation, and I am sure it says either missing or corrupted). The problem is, now it shows the same error again when I try to reboot it from the USB drive as well. I tried to boot a portable version of Linux I made in another USB, but the computer does not boot up from that USB, and it shows hal.dll error when I try to boot it using the WIN XP installation USB I made, as well as when I try to boot it from the hard drive, where I suppose Win XP is now semiinstalled. So now I can't get the computer to start up at all, except going to the BIOS. What else can I try to solve this? Also, would it be possible to install XP on this computer by connecting it to another one running Windows 7 ultimate, through the ethernet card? That is, network just the two computers together, then install windows XP on the notebook from the desktop running windows 7? Please help, I'm running out of ideas on this one. If Korean version of windows XP is the problem then I am willing to install English version as well. (but I need to make sure if that is the real cause of the problem)

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• Convert mkv/h264 video so it can be played on a "mid-range" Sony Ericsson phone. (using Ubuntu).

  - by Johan

  Hi As a little experiment I thinking of converting some video/movies/tv-series into a format that could be playable on my K850, but to be a little bit more generic in this question let's say "mid range Sony Ericsson" phone since they all more or less behave the same and has the same screen resolution (240 x 320). I am looking for command line based tools (for Ubuntu), since I am thinking about writing a "convert and move" script later if it is successful. A lot of the video I have is encoded in mkv/h264, but since that is not supported by the phone I guess that I need to convert it into some mp4/mpeg4 low quality video. After some googling it seems like a good candidate for the job is ffmpeg, but that seems to be a very versatile tool with a lot of magic tricks. Am I on the right track? And if so how do I use ffmpeg to do this? Thanks Johan Update: After plating a little bit with ffmeg I noticed that it only uses 1 of my 4 cores, so the transcoding takes forever. I found a arg called -threads but that did not change much, maybe I got it wrong. I also found that something like this plays in the phone. ffmpeg -i Mythbusters\ S1D1_1.mkv -threads 4 -t 180 -vcodec mpeg4 -r 15 -s 320x240 Mythbusters\ S1D1_1_mini.mp4 It was possible to use 3gp/h263, but the quality was really useless. ffmpeg -i Mythbusters\ S1D1_1.mkv -t 180 -vcodec h263 -acodec libfaac -s cif Mythbusters\ S1D1_1_cif.3gp And it seems like mp4/h264 is also possible and the result is ok, thanks to this question, this one seem to use more than one core as well so it was a little bit faster for me. ffmpeg -i Mythbusters_S1D1_1.mkv -t 180 -acodec libfaac -ab 60k -s 320x240 -vcodec libx264 -b 500k -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -flags2 +mixed_refs -me_method umh -subq 6 -trellis 1 -refs 5 -coder 0 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 500k -maxrate 768k -bufsize 2M -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 13 -threads 0 -f mp4 Mythbusters_S1D1_1_qvga.mp4 Update: I have tried to use HandBrakeCLI and it is no problem creating a new file that seem to be the same as the one created with ffmpeg with something like this. HandBrakeCLI -i Mythbusters_S1D1_1.mkv --size 100 -E faac -B 60 --maxHeight 240 -r 15 -e x264 -o Mythbusters_S1D1_1_hand.mp4 But that one did not play in the phone... I found this in the official manual: If you transfer video clips using another program than Media Go™, we recommend that you select H.264 Baseline profile video, up to QVGA at 30 fps, VBR 384 kbps (max 768 kps) with AAC+ audio at 128 kbps (max 255 kbps), 48 kHz and stereo audio in mp4 file format. So the idea to use H264 seems to be correct.

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