|
»
DD over Netcat
|
View:
New views
8 Messages
—
Rating Filter:
Alert me
|
 |
DD over Netcat
by Jwelch
::
Rate this Message:
I've been trying to do a block copy of one of my systems but I'm having an issue with finding the partition on cygwin. When I go to /dev, I don't see my hard drives so I can't do a DD. Here is the website I was using:DD over Netcat
How can I setup cygwin, so I can have linux directories rather than windows? ~Jay |
|
|
RE: DD over Netcat
by Dave Korn
::
Rate this Message:
Jwelch wrote on 26 June 2008 18:13:
> I've been trying to do a block copy of one of my systems but I'm having an > issue with finding the partition on cygwin. When I go to /dev, I don't see > my hard drives so I can't do a DD. Even though you don't see them, they are there. The /dev filesystem is (more-or-less) entirely synthetic under cygwin. See here for the details of the device names you'll want to use: http://cygwin.com/cygwin-ug-net/using-specialnames.html Note especially the first paragraph under "POSIX devices". cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ |
|
|
RE: DD over Netcat
by Jwelch
::
Rate this Message:
Ok, that makes sense but I don't have the /device directory. How do I create it so I can see it?
|
|
|
Re: DD over Netcat
by Mark J. Reed-2
::
Rate this Message:
There is no \device directory. You just use /dev/whatever even
though it doesn't show up in ls. On Thu, Jun 26, 2008 at 2:17 PM, Jwelch <jwelch@...> wrote: > > Ok, that makes sense but I don't have the /device directory. How do I create > it so I can see it? > > > > > Dave Korn wrote: >> >> Jwelch wrote on 26 June 2008 18:13: >> >>> I've been trying to do a block copy of one of my systems but I'm having >>> an >>> issue with finding the partition on cygwin. When I go to /dev, I don't >>> see >>> my hard drives so I can't do a DD. >> >> Even though you don't see them, they are there. The /dev filesystem is >> (more-or-less) entirely synthetic under cygwin. See here for the details >> of >> the device names you'll want to use: >> >> http://cygwin.com/cygwin-ug-net/using-specialnames.html >> >> Note especially the first paragraph under "POSIX devices". >> >> cheers, >> DaveK >> -- >> Can't think of a witty .sigline today.... >> >> >> -- >> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple >> Problem reports: http://cygwin.com/problems.html >> Documentation: http://cygwin.com/docs.html >> FAQ: http://cygwin.com/faq/ >> >> >> > > -- > View this message in context: http://www.nabble.com/DD-over-Netcat-tp18138826p18140123.html > Sent from the Cygwin list mailing list archive at Nabble.com. > > > -- > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > Problem reports: http://cygwin.com/problems.html > Documentation: http://cygwin.com/docs.html > FAQ: http://cygwin.com/faq/ > > -- Mark J. Reed <markjreed@...> -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ |
|
|
RE: DD over Netcat
by Dave Korn
::
Rate this Message:
Jwelch wrote on 26 June 2008 19:18:
> Ok, that makes sense but I don't have the /device directory. Not "/device", "/dev". > How do I create it so I can see it? "mkdir /dev" will create it (but won't populate it), or perhaps better, you could use the create_devices.sh script that is linked from that "POSIX devices" paragraph. But the point is, you don't need to be able to see it; it's all still there and "just works". cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ |
|
|
Re: DD over Netcat
by Brian Dessent
::
Rate this Message:
Jwelch wrote:
> Ok, that makes sense but I don't have the /device directory. How do I create > it so I can see it? You are misinterpreting what is written on that page. There is no need to create anything, nor is there a need to know about anything under \Device as that is the NT name not the POSIX name, and you're using POSIX dd. You simply use dd with the appropriate /dev/sd<letter><number>. You won't see them in ls but they are nonetheless present and work, like all the devices listed on that page. To find out the correct <letter>, look in the Logical Disk Manager service (can be accessed by running diskmgmt.msc). You will see each logical drive listed as "Disk 0", "Disk 1", etc. /dev/sda corresponds to Disk 0, /dev/sdb to Disk 1, and so on. /dev/sda is the whole drive, /dev/sda1 is the first partition of the drive, and so on. Brian -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ |
|
|
Re: DD over Netcat
by Jwelch
::
Rate this Message:
This is some good stuff, thanks for all the feedback, I really appreciate it. The problem I have now is that every time I try to DD the drive, it freezes on me. I have tried it 3 times and it freezes on the same number of bytes every time.
$ nc -l -p 7000 | dd of=/dev/sda punt! 16+0 records in 16+0 records out 8192 bytes (8.2 kB) copied, 972.875 s, 0.0 kB/s Is there any way I can check for errors or any of you guys have an idea why it would do this? Thanks
|
|
|
Re: DD over Netcat
by Christopher Faylor-8
::
Rate this Message:
On Thu, Jun 26, 2008 at 12:39:20PM -0700, Jwelch wrote:
>This is some good stuff, thanks for all the feedback, I really appreciate it. >The problem I have now is that every time I try to DD the drive, it freezes >on me. I have tried it 3 times and it freezes on the same number of bytes >every time. > >$ nc -l -p 7000 | dd of=/dev/sda > punt! >16+0 records in >16+0 records out >8192 bytes (8.2 kB) copied, 972.875 s, 0.0 kB/s > >Is there any way I can check for errors or any of you guys have an idea why >it would do this? Try varying the block size. Does that make a difference? i.e., bs=4096 cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ |
| Free embeddable forum powered by Nabble | Forum Help |
