how to resize an extended partition?

[Uwe Brauer]

Hello

I have win9x and linux on my laptop, where with the following
geometry:

Disk geometry for /dev/hda: 0.000-4645.634 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.031   1963.828  primary   FAT         boot
2       1963.828   4643.789  extended              lba
5       1963.859   2030.273  logical   ext2        
6       2030.304   4444.453  logical   reiserfs    
7       4444.484   4643.789  logical   linux-swap 


Now I want from time to time to dimish the second (extended: label 2) and to
enlarge the first (label 1) and some other time to do  VICE VERSA

So I tried to dimish label 2 by:
resize 2 start 2063.828 end 4643.789
with no effect (hence I could not enlarge label 1)

I could not find this issue in the manual page (may be I missed this point)

The second possibility, shrink 1 and enlarge 2 I did not try, since I
am now a little afraid that there is somehing I did not understand.

Can anybody point me out what to read or directly help me?

Regards


Uwe Brauer