* Using dd command and copy
@ 2012-10-19 12:07 chesschi
[not found] ` <50815062.50002@gmail.com>
0 siblings, 1 reply; 6+ messages in thread
From: chesschi @ 2012-10-19 12:07 UTC (permalink / raw)
To: cygwin
Hi all,
I am trying to write a script to do a "dd" to copy an image from a local
disk to a USB flash drive followed by copying some other files to the flash
drive.
e.g. if the flash drive is d and mapped to /dev/sdb
dd if=myfiles.iso of=/dev/sdb
cd myfolder
cp -rf */cygdrive/d
After dd and copy finishes, I eject the flash drive and reinsert to the USB
port. I found that some of the files are courrpted!
If I dd first, eject the USB flash drive then do the copying, it is okay.
Is there a way to automate this procedure without manually ejecting the
flash drive? Thank you.
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^ permalink raw reply [flat|nested] 6+ messages in thread[parent not found: <50815062.50002@gmail.com>]
[parent not found: <CAHHHhBab-_AiwLLGE69UT1yCY6WEP=AY_38vBGN2JcJmFmyHxQ@mail.gmail.com>]
* Re: Using dd command and copy [not found] ` <CAHHHhBab-_AiwLLGE69UT1yCY6WEP=AY_38vBGN2JcJmFmyHxQ@mail.gmail.com> @ 2012-10-19 15:38 ` marco atzeri 2012-10-19 15:56 ` chesschi 0 siblings, 1 reply; 6+ messages in thread From: marco atzeri @ 2012-10-19 15:38 UTC (permalink / raw) To: cygwin On 10/19/2012 5:28 PM, wing cheng wrote: > Unfortunately it is not working.... there are still files corrupted. Any > idea? > use the list please. > On Fri, Oct 19, 2012 at 2:06 PM, marco atzeri wrote: > > On 10/19/2012 2:07 PM, chesschi wrote: > > Hi all, > > I am trying to write a script to do a "dd" to copy an image from > a local > disk to a USB flash drive followed by copying some other files > to the flash > drive. > > e.g. if the flash drive is d and mapped to /dev/sdb > dd if=myfiles.iso of=/dev/sdb > cd myfolder > cp -rf */cygdrive/d > > > After dd and copy finishes, I eject the flash drive and reinsert > to the USB > port. I found that some of the files are courrpted! > > If I dd first, eject the USB flash drive then do the copying, it > is okay. > > Is there a way to automate this procedure without manually > ejecting the > flash drive? Thank you. > > > have you tested sync instead of ejecting ? > > > -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Using dd command and copy 2012-10-19 15:38 ` marco atzeri @ 2012-10-19 15:56 ` chesschi 2012-10-19 16:06 ` marco atzeri 0 siblings, 1 reply; 6+ messages in thread From: chesschi @ 2012-10-19 15:56 UTC (permalink / raw) To: cygwin I am new to this forum.... Marco, Thank you for your reply. I am sorry I replied you directly because I saw you did not post your solution to the forum but the message go straightly to my email...... By the way... my flash drive is an embedded drive 512MB like a small compact flash and it needs an adapter to connect to the USB port. The filesystem is FAT. Also, I found that after using "dd" to copy the image to the flash drive, the flash drive is still emtpy (I cannot see anything from the Windows Explorer). But if I eject the flash drive and connect it back, I can saw the contents. Any idea how to solve the problem? -- View this message in context: http://cygwin.1069669.n5.nabble.com/Using-dd-command-and-copy-tp93690p93700.html Sent from the Cygwin list mailing list archive at Nabble.com. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Using dd command and copy 2012-10-19 15:56 ` chesschi @ 2012-10-19 16:06 ` marco atzeri 2012-10-19 16:34 ` Corinna Vinschen 0 siblings, 1 reply; 6+ messages in thread From: marco atzeri @ 2012-10-19 16:06 UTC (permalink / raw) To: cygwin On 10/19/2012 5:56 PM, chesschi wrote: > I am new to this forum.... > > Marco, Thank you for your reply. I am sorry I replied you directly because I > saw you did not post your solution to the forum but the message go > straightly to my email...... sorry, my fault. (PS: it is mailing list not a forum) > By the way... my flash drive is an embedded drive 512MB like a small compact > flash and it needs an adapter to connect to the USB port. The filesystem is > FAT. > > Also, I found that after using "dd" to copy the image to the flash drive, > the flash drive is still emtpy (I cannot see anything from the Windows > Explorer). But if I eject the flash drive and connect it back, I can saw the > contents. > > Any idea how to solve the problem? it seems really that windows need to re-read the filesystem status. eventually you can try sysinternals sync http://technet.microsoft.com/en-us/sysinternals/bb897438 -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Using dd command and copy 2012-10-19 16:06 ` marco atzeri @ 2012-10-19 16:34 ` Corinna Vinschen 2012-10-22 11:31 ` chesschi 0 siblings, 1 reply; 6+ messages in thread From: Corinna Vinschen @ 2012-10-19 16:34 UTC (permalink / raw) To: cygwin On Oct 19 18:06, marco atzeri wrote: > On 10/19/2012 5:56 PM, chesschi wrote: > >I am new to this forum.... > > > >Marco, Thank you for your reply. I am sorry I replied you directly because I > >saw you did not post your solution to the forum but the message go > >straightly to my email...... > > sorry, my fault. (PS: it is mailing list not a forum) > > > >By the way... my flash drive is an embedded drive 512MB like a small compact > >flash and it needs an adapter to connect to the USB port. The filesystem is > >FAT. > > > >Also, I found that after using "dd" to copy the image to the flash drive, > >the flash drive is still emtpy (I cannot see anything from the Windows > >Explorer). But if I eject the flash drive and connect it back, I can saw the > >contents. > > > >Any idea how to solve the problem? > > > it seems really that windows need to re-read the filesystem status. > > eventually you can try sysinternals sync Shouldn't diskpart do the trick? The diskpart command is "rescan" Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Using dd command and copy 2012-10-19 16:34 ` Corinna Vinschen @ 2012-10-22 11:31 ` chesschi 0 siblings, 0 replies; 6+ messages in thread From: chesschi @ 2012-10-22 11:31 UTC (permalink / raw) To: cygwin Corinna Vinschen-2 wrote > Shouldn't diskpart do the trick? The diskpart command is "rescan" Thanks Corinna. I found that "rescan" is not working BUT "remove" followed by "assigned" is working! e.g. select volume d remove letter d assign letter=d One thing I found it is interesting is, when I use "remove", the drive is still there in the Control Panel Disk Management but no letter is assigned. If I then use "assign", the drive is assigned with letter and the drive is no longer empty! I tried "rescan" or "sync -r/-e" (marco suggested) that both attempt to flush the filesystem, the drive is still empty after flushing. Anyway, thanks a lot for your help! -- View this message in context: http://cygwin.1069669.n5.nabble.com/Using-dd-command-and-copy-tp93690p93870.html Sent from the Cygwin list mailing list archive at Nabble.com. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-10-22 11:31 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2012-10-19 12:07 Using dd command and copy chesschi
[not found] ` <50815062.50002@gmail.com>
[not found] ` <CAHHHhBab-_AiwLLGE69UT1yCY6WEP=AY_38vBGN2JcJmFmyHxQ@mail.gmail.com>
2012-10-19 15:38 ` marco atzeri
2012-10-19 15:56 ` chesschi
2012-10-19 16:06 ` marco atzeri
2012-10-19 16:34 ` Corinna Vinschen
2012-10-22 11:31 ` chesschi
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