How to change disk label?

[VLX]

Hi to all

When I want to set disk label, I need to create empty file with atrribute FA_VOLUME, for example:

Code: Select all

Fcreate( "D:\\GAMES" , FA_VOLUME );

I can change already exists label by creating new file with this attribute, but how to remove label from disk when I want to set it empty?

I can't delete file with that attribute - I get error message "path not found".
There's not possible to create file with empty name. I also can't change attributes of existing file, to delete it like a normal one.

How to do this?

[tstrauss]

Hi,

The Atari Profibuch states something to this topic:

It depends on the GEMDOS version.

IF GEMDOS-version < 0.15
IF volume-label exists
Create file with same name with Fcreate(), Close with Fclose(). Delete file with FDelete().
ENDIF
ENDIF
Create volume-label with Fcreate(). Close with Fclose()

From: Atari Profibuch 10th edition page 230

Regards
Thomas

[VLX]

Hello

It doesn't work.

When I create new file with Fcreate( path , FA_VOLUME ), it cannot be deleted with Fdelete( path ) (error "no path found").

When new file is created with Fcreate( path , 0 ) (or FA_ARCHIVE, whatever), then it's just normal file you can see in disk directory. It can be deleted with Fdelete( path ). In sector with directory I see two files with same name - one regular file and one for disk label. Fdelete works only for regular one, but it don't change disk volume.

Regards...

[mfro]

When I create new file with Fcreate( path , FA_VOLUME ), it cannot be deleted with Fdelete( path ) (error "no path found").

You are supposed to create a regular file with the same name, not another volume label (but only do this on TOS 1.0).

[VLX]

How about TOS between 1.04 and 2.06? When I create regular file and delete it, volume name don't change. I just delete regular file, not volume.

[mfro]

How about TOS between 1.04 and 2.06? When I create regular file and delete it, volume name don't change. I just delete regular file, not volume.

On later versions, you just need to Fdelete() the volume name "file name".

[VLX]

Ok, but this way I can change name of volume. How to set it empty? I want to remove label, when someone leave empty field in "enter volume label" requester.

[Count]

How about TOS between 1.04 and 2.06? When I create regular file and delete it, volume name don't change. I just delete regular file, not volume.

On later versions, you just need to Fdelete() the volume name "file name".

No, this does not work with TOS 1.04 and later versions. I tried deleting the volume name using Mupfel's label (e.g. "label A: -") command on several TOS versions:

1.00 and 1.02 → volume name can be deleted
1.04, 2.06, EmuTOS 1.01 → volume name remains

I found this in the release notes for TOS 1.04 (page 40, last paragraph on Attribute Byte):

... you can't use Fattrib, Frename, Fopen, or Fdelete on labels or subdirectories.

Everything is explained in detail on page 48.

Rainbow TOS Release Notes:
https://archive.org/details/rearc_atari ... 1991-03-05