Chapter 22: File Systems and the VFS

[Mike]

Hello everyone,

I apologize for the delay for this release - Chapter 22 of our OSDev Series pre-release is here at last! It covers VFS and more file system topics in detail along with a new filesystem driver for our kernel. After this is done we will be able to load files off of disk with the ability to support any number of file systems and devices. This completes the basic framework needed for us to start diving into executing programs and, a little later, going into multitasking.

Please post comments or suggestions if there are any.

[Zig]

Great

[Ecoboy]

Waw! That's great!
I hope that you continue this way .. I LOVE YOUR JOB and your explaining way ..
Thaks Mike

[pathos]

Nice! Can't wait to dive into it tomorrow!

[pathos]

Any release date set for the demo?

[Mike]

Hello,

I apologize for the delay. The demo will be released tomorrow or the following day depending on schedule. Along with this, our scan code set reference and new multiboot chapter has also been released.

[pathos]

Hello,

I apologize for the delay. The demo will be released tomorrow or the following day depending on schedule. Along with this, our scan code set reference and new multiboot chapter has also been released.

No need to apologize -- I know you're busy! Thanks for the hard work!

[pathos]

The demo will be released tomorrow or the following day

-> -> -> -> -> -> ->

Haha... just kidding.

[__asm]

god i thought my girlfriend was a tease

[Mike]

Hello,

Sorry for the delay - I am cleaning up the demo somewhat and finishing features. 2 new bugs were found (there are workarounds in the demo though).

It should be released officially tomorrow with an updated chapter text.

[Insightsoft]

Hello my hero!

Please, consider this:

On demo22; in project=Fat12; mouse right-click; choose "Properties"; in Configuration Properties->C/C++->Additional Include Directory; change from physical to relational paths;

From: c:\xx\yy\kernel; to ..\kernel; ..\include

[Mike]

Hello,

Woops, did not see that before release. I'll see about fixing that and re-releasing it. Thanks for letting me know

[pathos]

Mike, I may have found a bug.

I could have created it myself while messing around, but since I'm not able to compile the demo, I can't test your code. I'm getting an infinite loop if I try to read a nonexistent text file from a folder. For example, I have A:\folder\b.txt. If I type read, then \folder\b.txt, it reads the file. But if I type read, then \folder\a.txt, it constantly loops in the fsysFatOpenSubDir procedure, in the while(!kFile.eof).

Could you, or someone else, test this out on the demo code to see if it happens with it, or did I create this while messing around?