The manpage for truncate says: Note that the -r and -s options are mutually exclusive.
and indeed you cannot have both: $ truncate -r /tmp/ref -s +10M /tmp/new truncate: you must specify one of `--size' or `--reference' We suggest using the 'truncate' command in the 'virt-resize' documentation[1]. We want users to create a file which is the size of an existing file + some extra amount. Naturally this would be: truncate -r old-disk.img -s +1G new-disk.img but this does not work and we have to suggest that users use two separate 'truncate' commands[2]. Related to this feature request, it would be nice if you could suffix a size with a % sign to indicate that you want to increase a file by a certain percentage of the old or reference size, eg: truncate -r old-disk.img -s +10% new-disk.img truncate -r old-disk.img -s 110% new-disk.img Neither of these forms work at the moment. Rich. [1] http://libguestfs.org/virt-resize.1.html#expanding_a_virtual_machine_disk [2] http://git.annexia.org/?p=libguestfs.git;a=commitdiff;h=0e28e4104d96bf0bf5b88fb07bb7e5f9f6e6f41f#patch1 -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
