[Freedos-user] re: How to report a kernel bug?

2005-07-28 Thread Eric Auer

Hm... why not ask on -kernel or at least on -devel?

 I have a machine where to reproduce this bug, or a similar one. It's a 
 286. Strangely enough, FreeDOS will boot from floppy and see C:, but 
 will refuse to boot from there (locks at InitDisk I think, I haven't 
 investigated into this).

IF it locks in InitDisk then you will see the InitDisk string on the
screen. If you do not, then you can try FDISK /MBR to replace the MBR
program code by a fresh copy, and/or try a newer SYS version to
install a newer bootsector on C:... If the MBR works right, then
you should see at least the FreeDOS string displayed by the boot
sector. If the boot sector works right, you should see, depending
on how far you get, 123 or InitDisk or the drive list or the
banner message, etc.!

 I seem to recall that Arkady has a tool to inspect the MBR and 
 find possible problems, right?

Arkady has BOOTFIX to analyze bootsectors. To analyze the MBR, use
FDISK /SMBR [drive number, e.g. 1] to save the MBR to a boot.mbr file.
You can also try MIRROR /PARTN ... or a debug script or other methods.

Eric


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[Freedos-user] re: How to report a kernel bug?

2005-07-19 Thread Eric Auer

Hi, alas Flo did not explain WHICH problem HE has with the
partition scheme, but Mark's is either of the following:

- FreeDOS gets confused by partition type 0xde (GAG boot loader??)
- FreeDOS gets confused by partition type OS/2 boot menu hidden small FAT16
- FreeDOS crashes after showing a (to long, contains a lot of redundant
  information) warning if it runs into a partition that is outside CHS-space
  (after the first 1024 cylinders) but of a CHS-specific partition type
- FreeDOS crashes after showing ... a warning if it runs into an extended
  partition that is outside CHS-space but marked as CHS-specific type

Windows XP just seems to act like hey, the user will have MEANT to use a
LBA-specific type in the latter two cases and continues without any more
problems than using Windows XP causes anyway ;-).

By the way, why is this thread on freedos-user?

Eric

PS: The either of the following is based on the MBR samples from Mark



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Re: [Freedos-user] re: How to report a kernel bug?

2005-07-19 Thread Florian Xaver

Hi!


Hi, alas Flo did not explain WHICH problem HE has with the
partition scheme, but Mark's is either of the following:


I have more or less the same problem. The FreeDOS dev. kernel (last 
version) told me the same like Mark's. Then i have problems with some 
files (invalid opcode). It is the case, if i boot via boot disc.

And i have 2 disks...both produce this error.



- FreeDOS gets confused by partition type 0xde (GAG boot loader??)
- FreeDOS gets confused by partition type OS/2 boot menu hidden small FAT16
- FreeDOS crashes after showing a (to long, contains a lot of redundant
  information) warning if it runs into a partition that is outside CHS-space
  (after the first 1024 cylinders) but of a CHS-specific partition type


Yes, i have this problem.


- FreeDOS crashes after showing ... a warning if it runs into an extended
  partition that is outside CHS-space but marked as CHS-specific type


If you need more info, ask. I don't think, that it will help you, if i 
would tell you the numbers of the errors.


Bye, Flo


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