Log in

Previous Entry | Next Entry

Who Needs X-Killers?

Wow, has it been two weeks already?

Thanks to all who have helped with previous ones, which I posted on:

Thanks again to taiji_jian, and especially to nikolasco and the new KDD developer, tmehlinger, for help with some of last week's problems.

Here's my fortnightly update:

File recovery software

Hirilonde, my Dell Inspiron 6000, has been sitting idle for nearly 4 weeks, thanks to my accidentally deleting a JPEG (digital camera photo from Edinburgh Castle) on 07 Aug 2005. I deleted it, then hit "undo" twice (instead of only once as I thought), and emptied the Recycle Bin. RestoreMyFiles shows a 1974Kb file on the drive and reports a "medium" chance of restoration, but produces a 1Kb file. The thumbnail appears fully intact.

I've been refraining from writing files to the HD for fear of overwriting it.

Is there any way to get the file back, short of using forensic techniques? It's not that important, but I'd like to learn how to recover the file. I'm also just curious as to whether the thumbnail is a separate file produced by Windows (and possibly just a remnant from a corrupted file) or generated from the actual JPEG (meaning the picture could be intact).

Skype under Windows 2003 on a COMPAQ iPAQ H3635

I have a late model COMPAQ iPAQ, purchased exactly 4 years ago (Labor Day weekend, 2001) for $600, plus $180 after rebate for a 256Mb CompactFlash card. It's an iPAQ H3635 and came with Windows for Pocket PC 2000 and active Sync v3.1. I upgraded to Windows for Pocket PC 2002 (still a WinCE 3.0-based OS) and ActiveSync v3.5 a few months later. I'd like to put Skype on it, but Skype requires Windows for Pocket PC 2003 (CE 4). nikolasco noted that HP doesn't sell upgrade CDs for models this old. Does anyone know whether I might be able to flash this thing with Pocket PC 2003 Second Edition anyway? It has 32Mb of RAM and 32Mb of ROM.

IP Tunnelling Options

In this post earlier in the week, I described my home setup and asked for help in setting up IP tunnelling. nikolasco sketched out a fix that I might be able to implement using NetBSD's IPNAT rules and a little work, but I haven't read through all of the docs that taiji_jian pointed me to yet (that's one of this weekend's many To-Do items). Another project that's on my front burner is trying Monowall, which tmehlinger recommended.

The bottom line, though, is that I really don't want to disturb my current setup with anduril (a dinky Gateway P5-75 running the aforementioned NetBSD 1.6 setup). It just works. Is there any way I can get it all set up using IPNAT rules without displacing or breaking anything? I will set up a 100MHz, or 400MHz, or 1GHz box, with all of the nice GUI-based config tools, later.

Thanks very much in advance.




( 3 comments — Leave a comment )
Sep. 4th, 2005 01:50 pm (UTC)
I'm also just curious as to whether the thumbnail is a separate file produced by Windows (and possibly just a remnant from a corrupted file) or generated from the actual JPEG (meaning the picture could be intact).
The JPEG format has an explicit datablock type for thumbnails. Windows thumbnails might involve temporary files that could be recovered, but they're generated on the fly.
Sep. 4th, 2005 04:19 pm (UTC)
Hrm, so what does that mean?
Could I be looking at a temporary thumbnail of an irrecoverable file, and if so, how can I tell?

Sep. 4th, 2005 05:35 pm (UTC)
Re: Hrm, so what does that mean?
Low-level format, possibly. Open the fool thing up in a hex editor.
  • Starts with BM: it's a BMP. Useless temp file.
  • Contains JFIF: it's a JPEG. Unfortunately, this doesn't positively ID whether it's a OS thumbnail or The File. Although I have problems imagining M$ using non-BMP formats for temporary image files. I don't immediately have notes on how to figure out the length of a JPEG data block.
  • Neither: Presumably OS thumbnail, although not the M$ modus operandi.

( 3 comments — Leave a comment )

Latest Month

December 2008

KSU Genetic and Evolutionary Computation (GEC) Lab



Science, Technology, Engineering, Math (STEM) Communities

Fresh Pages


Page Summary

Powered by LiveJournal.com
Designed by Naoto Kishi