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Content preview: James Harper writes: > Just a curiousity... I'm nc-ing a disk
image from a laptop, like: > gzip </dev/sda | nc target 4242 > and on the
target computer: > nc -l -p 4242 | gunzip | dd bs=4k conv=sparse
of=laptop-xp.img
> and on the target computer I am also impatiently doing: > du -sk
--apparent-size
laptop-xp.img && du -sk laptop-xp.img > and the output is a bit strange.
> [boring numbers...] > What's with that? The filesystem is btrfs but I don't
know that that's anything to do with it. [...]
Content analysis details: (5.6 points, 5.0 required)
pts rule name description
---- ---------------------- --------------------------------------------------
1.1 FH_HELO_EQ_D_D_D_D Helo is d-d-d-d
0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail
provider
(trentbuck[at]gmail.com)
0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines
1.3 RDNS_NONE Delivered to internal network by a host with no rDNS
3.2 HELO_DYNAMIC_IPADDR Relay HELO'd using suspicious hostname (IP addr
1)
0.0 T_TO_NO_BRKTS_FREEMAIL T_TO_NO_BRKTS_FREEMAIL
0.0 TO_NO_BRKTS_NORDNS To: misformatted and no rDNS
--- Begin Message ---
James Harper <[email protected]>
writes:
> Just a curiousity... I'm nc-ing a disk image from a laptop, like:
> gzip </dev/sda | nc target 4242
> and on the target computer:
> nc -l -p 4242 | gunzip | dd bs=4k conv=sparse of=laptop-xp.img
> and on the target computer I am also impatiently doing:
> du -sk --apparent-size laptop-xp.img && du -sk laptop-xp.img
> and the output is a bit strange.
> [boring numbers...]
> What's with that? The filesystem is btrfs but I don't know that that's
> anything to do with it.
Try HUPping the dd instead (or use gddrescue) to find out how much IT
thinks is written. btrfs is probably just being weird in what it tells
df/du -- I see that a lot.
--- End Message ---
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