resume (-R option) of xfsdump doesn't work

[gregor_jan@xxxxxxxxx]

Hello
 I tried to dump my filesystem with following command:

  xfsdump -f /dosc/dimage /

 After 640 seconds was dump interrupted with advice to resume it by -R
 option. But it doesn't work, xfsdump says that media contains valid
 xfsdump but does not support append.

 I used this command:
  xfsdump -R -f /dosc/dimage /

 My system is debian with vanilla kernel 2.4.19 patched by patch for
 this kernel from sgi. xfsdump and other commands for xfs are contained
 in debian package xfsprogs-2.0.3-1.

Jan Gregor