Tagged Questions

0
votes
1answer
106 views

Stripping null byte blocks with a sparse file?

I've created a sparse file with dd. How do I copy contents of another file there, leaving all the zero blocks unallocated?
3
votes
3answers
241 views

from a sparse file to a block device over the network

If I have a sparse file representing a block device, then how can I efficiently restore the file over a network? Ideally, I'd use rsync -S host:file /dev/sdb, but rsync won't write to block devices. ...
6
votes
2answers
818 views

Detailed sparse file information on Linux

I have a sparse file, in which only some blocks are allocated: ~% du -h --apparent-size example 100K example ~% du -h example 52K example I would like to know which blocks of the file are ...