* Re: 1.7.7 on Windows 7: can't write to removable disk
@ 2013-02-21 22:55 Latchen McKinney
2013-02-21 23:07 ` Larry Hall (Cygwin)
0 siblings, 1 reply; 8+ messages in thread
From: Latchen McKinney @ 2013-02-21 22:55 UTC (permalink / raw)
To: cygwin
> On Jan 11 15:55, Corinna Vinschen wrote:
> > On Jan 11 15:51, Corinna Vinschen wrote:
> > > On Jan 10 10:40, tomas@datasupporten.se wrote:
> > > > Hello.
> > > > I'm trying to write a disk image to a compact flash card with dd, but I
> > > > get the error:
> > > > "dd: writing to /dev/sdj: Permission denied"
> > > >
> > > > Apart from the CF-card, I also tried a USB-stick with the same results.
> > > > I'm logged in as administrator.
> > >
> > > Please have a look into http://support.microsoft.com/kb/942448 first.
> > >
> > > [...listening "De-Loused In The Comatorium" while waiting...]
> > >
> > > Finished reading? Ok.
> > >
> > > That's quite a serious restriction starting with Vista. If I destroy the
> > > filesystem on one of my sd cards under Linux, I can then overwrite it
> > > with dd under Cygwin. However, if that dd call created a valid
> > > filesystem on the sd card, the next write fails again. For some reason
> > > it does not help to unmount the filesystem on the drive via the "Disk
> > > Management" MMC snap-in, despite the claim in the aforementioned
> > > article.
> > >
> > > The solution I just checked in to Cygwin is rather complicated, but
> > > I really tested this a couple of hours now, and I didn't find any
> > > other solution.
> >
> > I forgot the disclaimer:
> >
> > Please test the next developer snapshot from http://cygwin.com/snapshots/
>
> Update: I checked in a revised version of the patch.
> The code from yesterday tried to lock all partitions at open() time at
> once, which is hardly minimal-invasive. It would even try to lock all
> partitions if you just overwrite the boot sector.
> With the new code, a partition lock is only triggered on-demand. As
> soon as a write() call fails with "Access denied", it searches the
> partition table for a partition which overlaps with the current write
> position and then tries to lock only that partition.
>
Hello!
I am curious if this patch was included in the live build of cygwin. I use dd for archiving and making new copies of floppy disks from images, and I can no longer do that in Windows 7. I, too, get the error message:
"dd: writing to /dev/fd0: Permission denied"
Warmest regards.
--
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 1.7.7 on Windows 7: can't write to removable disk
2013-02-21 22:55 1.7.7 on Windows 7: can't write to removable disk Latchen McKinney
@ 2013-02-21 23:07 ` Larry Hall (Cygwin)
2013-02-22 10:50 ` Andrey Repin
0 siblings, 1 reply; 8+ messages in thread
From: Larry Hall (Cygwin) @ 2013-02-21 23:07 UTC (permalink / raw)
To: cygwin
On 2/21/2013 5:55 PM, Latchen McKinney wrote:
>> On Jan 11 15:55, Corinna Vinschen wrote:
>>> On Jan 11 15:51, Corinna Vinschen wrote:
>>>> On Jan 10 10:40, tomas@datasupporten.se wrote:
>>>>> Hello.
>>>>> I'm trying to write a disk image to a compact flash card with dd, but I
>>>>> get the error:
>>>>> "dd: writing to /dev/sdj: Permission denied"
>>>>>
>>>>> Apart from the CF-card, I also tried a USB-stick with the same results.
>>>>> I'm logged in as administrator.
>>>>
>>>> Please have a look into http://support.microsoft.com/kb/942448 first.
>>>>
>>>> [...listening "De-Loused In The Comatorium" while waiting...]
>>>>
>>>> Finished reading? Ok.
>>>>
>>>> That's quite a serious restriction starting with Vista. If I destroy the
>>>> filesystem on one of my sd cards under Linux, I can then overwrite it
>>>> with dd under Cygwin. However, if that dd call created a valid
>>>> filesystem on the sd card, the next write fails again. For some reason
>>>> it does not help to unmount the filesystem on the drive via the "Disk
>>>> Management" MMC snap-in, despite the claim in the aforementioned
>>>> article.
>>>>
>>>> The solution I just checked in to Cygwin is rather complicated, but
>>>> I really tested this a couple of hours now, and I didn't find any
>>>> other solution.
>>>
>>> I forgot the disclaimer:
>>>
>>> Please test the next developer snapshot from http://cygwin.com/snapshots/
>>
>> Update: I checked in a revised version of the patch.
>> The code from yesterday tried to lock all partitions at open() time at
>> once, which is hardly minimal-invasive. It would even try to lock all
>> partitions if you just overwrite the boot sector.
>> With the new code, a partition lock is only triggered on-demand. As
>> soon as a write() call fails with "Access denied", it searches the
>> partition table for a partition which overlaps with the current write
>> position and then tries to lock only that partition.
>>
> Hello!
>
> I am curious if this patch was included in the live build of cygwin. I use dd for archiving and making new copies of floppy disks from images, and I can no longer do that in Windows 7. I, too, get the error message:
>
> "dd: writing to /dev/fd0: Permission denied"
Cygwin 1.7.7 is very old and the thread you reference is over 2 years
old. The current version of Cygwin is 1.7.17. If you're not up-to-date,
try updating. If you are and you're having problems, please read and
follow the problem reporting guidelines found at the link below for
any follow-up to this list.
> Problem reports: http://cygwin.com/problems.html
--
Larry
_____________________________________________________________________
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
--
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Documentation: http://cygwin.com/docs.html
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 1.7.7 on Windows 7: can't write to removable disk
2013-02-21 23:07 ` Larry Hall (Cygwin)
@ 2013-02-22 10:50 ` Andrey Repin
0 siblings, 0 replies; 8+ messages in thread
From: Andrey Repin @ 2013-02-22 10:50 UTC (permalink / raw)
To: Larry Hall (Cygwin)
Greetings, Larry Hall (Cygwin)!
>> I am curious if this patch was included in the live build of cygwin. I use
>> dd for archiving and making new copies of floppy disks from images, and I
>> can no longer do that in Windows 7. I, too, get the error message:
>>
>> "dd: writing to /dev/fd0: Permission denied"
> Cygwin 1.7.7 is very old and the thread you reference is over 2 years
> old. The current version of Cygwin is 1.7.17. If you're not up-to-date,
> try updating. If you are and you're having problems, please read and
> follow the problem reporting guidelines found at the link below for
> any follow-up to this list.
The error itself is not specific to cygwin version, and a clue is expressed by
the author: Win7. Unless you have disabled UAC, it will prevent direct access
to devices, unless the program run as super-user.
This also applies to removable media formatted as NTFS, in some circumstances.
Stumbled upon this myself yesterday. Forgot to bring my flash disk, and had to
use cased HDD containing a mirror of my tools "just in case". The HDD was
formatted in NTFS, and I were unable to access many files, until I restarted
my file manager as super-user.
--
WBR,
Andrey Repin (anrdaemon@freemail.ru) 22.02.2013, <14:40>
Sorry for my terrible english...
--
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Documentation: http://cygwin.com/docs.html
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^ permalink raw reply [flat|nested] 8+ messages in thread
* 1.7.7 on Windows 7: can't write to removable disk
@ 2011-01-10 13:55 tomas
2011-01-11 14:58 ` Corinna Vinschen
0 siblings, 1 reply; 8+ messages in thread
From: tomas @ 2011-01-10 13:55 UTC (permalink / raw)
To: cygwin
[-- Attachment #1: Type: text/plain, Size: 293 bytes --]
Hello.
I'm trying to write a disk image to a compact flash card with dd, but I
get the error:
"dd: writing to /dev/sdj: Permission denied"
Apart from the CF-card, I also tried a USB-stick with the same results.
I'm logged in as administrator.
Attaching output from cygcheck if needed.
Tomas
[-- Attachment #2: cygcheck.txt --]
[-- Type: text/plain, Size: 17065 bytes --]
Cygwin Configuration Diagnostics
Current System Time: Mon Jan 10 09:48:51 2011
Windows 7 Professional N Ver 6.1 Build 7600
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
C:\Windows\system32
C:\Windows
C:\Windows\System32\Wbem
C:\Windows\System32\WindowsPowerShell\v1.0\
C:\Program Files\ThinkPad\Bluetooth Software\
C:\Program Files\Intel\WiFi\bin\
C:\Program Files\Common Files\Intel\WirelessCommon\
C:\Program Files\Common Files\Lenovo
C:\Program Files\Lenovo\Access Connections\
Output from C:\cygwin\bin\id.exe
UID: 500(Administrator) GID: 513(None)
513(None) 0(root) 544(Administrators)
545(Users)
SysDir: C:\Windows\system32
WinDir: C:\Windows
USER = 'Administrator'
PWD = '/home/Administrator'
HOME = '/home/Administrator'
HOMEPATH = '\Users\Administrator'
MANPATH = '/usr/local/man:/usr/share/man:/usr/man:'
APPDATA = 'C:\Users\Administrator\AppData\Roaming'
HOSTNAME = 'micke-x'
RR = 'C:\Program Files\Lenovo\Rescue and Recovery'
TVTCOMMON = 'C:\Program Files\Common Files\Lenovo'
TERM = 'cygwin'
PROCESSOR_IDENTIFIER = 'x86 Family 6 Model 23 Stepping 10, GenuineIntel'
WINDIR = 'C:\Windows'
TVTPYDIR = 'C:\Program Files\Common Files\Lenovo\Python24'
TVT = 'C:\Program Files\Lenovo'
PUBLIC = 'C:\Users\Public'
OLDPWD = '/etc/skel'
USERDOMAIN = 'MICKE-X'
ACPath = 'C:\Program Files\Lenovo\Access Connections\'
OS = 'Windows_NT'
ALLUSERSPROFILE = 'C:\ProgramData'
!:: = '::\'
COMMONPROGRAMFILES = 'C:\Program Files\Common Files'
configsetroot = 'C:\Windows\ConfigSetRoot'
USERNAME = 'Administrator'
PROCESSOR_LEVEL = '6'
PSModulePath = 'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\'
FP_NO_HOST_CHECK = 'NO'
SYSTEMDRIVE = 'C:'
LANG = 'C.UTF-8'
USERPROFILE = 'C:\Users\Administrator'
PS1 = '\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$ '
LOGONSERVER = '\\MICKE-X'
PROCESSOR_ARCHITECTURE = 'x86'
LOCALAPPDATA = 'C:\Users\Administrator\AppData\Local'
!C: = 'C:\cygwin\bin'
SWSHARE = 'C:\SWSHARE'
ProgramData = 'C:\ProgramData'
SHLVL = '1'
PATHEXT = '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC'
HOMEDRIVE = 'C:'
PROMPT = '$P$G'
COMSPEC = 'C:\Windows\system32\cmd.exe'
SYSTEMROOT = 'C:\Windows'
PRINTER = 'iR C3220'
CVS_RSH = '/bin/ssh'
PROCESSOR_REVISION = '170a'
INFOPATH = '/usr/local/info:/usr/share/info:/usr/info:'
PROGRAMFILES = 'C:\Program Files'
NUMBER_OF_PROCESSORS = '2'
SESSIONNAME = 'Console'
COMPUTERNAME = 'MICKE-X'
_ = '/usr/bin/cygcheck.exe'
HKEY_CURRENT_USER\Software\Cygwin
HKEY_CURRENT_USER\Software\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Cygwin\setup
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\Installations
(default) = '\??\C:\cygwin'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\setup
(default) = 'C:\cygwin'
obcaseinsensitive set to 1
Cygwin installations found in the registry:
System: Key: c5e39b7a9d22bafb Path: C:\cygwin
c: hd NTFS 225272Mb 13% CP CS UN PA FC Windows7_OS
d: cd N/A N/A
e: fd N/A N/A
f: fd N/A N/A
g: fd N/A N/A
h: fd N/A N/A
i: fd N/A N/A
j: fd N/A N/A
k: fd N/A N/A
l: fd FAT32 3822Mb 57% CP UN TRANSCEND
q: hd NTFS 11999Mb 67% CP CS UN PA FC Lenovo_Recovery
C:\cygwin / system binary,auto
C:\cygwin\bin /usr/bin system binary,auto
C:\cygwin\lib /usr/lib system binary,auto
cygdrive prefix /cygdrive user binary,auto
Found: C:\cygwin\bin\awk
Found: C:\cygwin\bin\awk
-> C:\cygwin\bin\gawk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cp.exe
Found: C:\cygwin\bin\cp.exe
Not Found: cpp (good!)
Not Found: crontab
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\find.exe
Found: C:\Windows\system32\find.exe
Warning: C:\cygwin\bin\find.exe hides C:\Windows\system32\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin\bin\grep.exe
Found: C:\cygwin\bin\grep.exe
Found: C:\cygwin\bin\kill.exe
Found: C:\cygwin\bin\kill.exe
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\mv.exe
Found: C:\cygwin\bin\mv.exe
Not Found: patch
Not Found: perl
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: C:\cygwin\bin\sed.exe
Not Found: ssh
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe
Found: C:\cygwin\bin\tar.exe
Found: C:\cygwin\bin\test.exe
Found: C:\cygwin\bin\test.exe
Not Found: vi
Not Found: vim
15k 2009/12/27 C:\cygwin\bin\cygattr-1.dll - os=4.0 img=1.0 sys=4.0
"cygattr-1.dll" v0.0 ts=2009/11/18 13:52
61k 2009/03/02 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2009/3/2 4:11
43k 2010/01/02 C:\cygwin\bin\cygform-10.dll - os=4.0 img=1.0 sys=4.0
"cygform-10.dll" v0.0 ts=2010/1/2 15:49
40k 2009/03/01 C:\cygwin\bin\cygform-8.dll - os=4.0 img=1.0 sys=4.0
"cygform-8.dll" v0.0 ts=2009/3/1 7:32
43k 2009/11/20 C:\cygwin\bin\cygform-9.dll - os=4.0 img=1.0 sys=4.0
"cygform-9.dll" v0.0 ts=2009/11/20 20:14
45k 2010/08/15 C:\cygwin\bin\cyggcc_s-1.dll - os=4.0 img=1.0 sys=4.0
"cyggcc_s-1.dll" v0.0 ts=2010/8/15 0:57
315k 2009/06/06 C:\cygwin\bin\cyggmp-3.dll - os=4.0 img=1.0 sys=4.0
"cyggmp-3.dll" v0.0 ts=2009/6/6 13:23
25k 2009/07/06 C:\cygwin\bin\cyghistory7.dll - os=4.0 img=1.0 sys=4.0
"cyghistory7.dll" v0.0 ts=2009/7/5 16:45
360k 2010/08/15 C:\cygwin\bin\cygicons-0.dll - os=4.0 img=1.4 sys=4.0
"cygicons-0.dll" v0.0 ts=2010/8/16 0:45
982k 2009/12/23 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2009/12/23 14:25
31k 2009/04/03 C:\cygwin\bin\cygintl-8.dll - os=4.0 img=1.0 sys=4.0
"cygintl-8.dll" v0.0 ts=2009/4/3 3:15
5k 2010/08/31 C:\cygwin\bin\cyglsa.dll - os=4.0 img=1.0 sys=4.0
"cyglsa.dll" v0.0 ts=2010/8/31 10:00
9k 2010/08/31 C:\cygwin\bin\cyglsa64.dll - os=5.2 img=0.0 sys=5.2
125k 2010/04/09 C:\cygwin\bin\cyglzma-1.dll - os=4.0 img=1.0 sys=4.0
"cyglzma-1.dll" v0.0 ts=2010/4/9 17:54
25k 2010/01/02 C:\cygwin\bin\cygmenu-10.dll - os=4.0 img=1.0 sys=4.0
"cygmenu-10.dll" v0.0 ts=2010/1/2 15:48
21k 2009/03/01 C:\cygwin\bin\cygmenu-8.dll - os=4.0 img=1.0 sys=4.0
"cygmenu-8.dll" v0.0 ts=2009/3/1 7:31
25k 2009/11/20 C:\cygwin\bin\cygmenu-9.dll - os=4.0 img=1.0 sys=4.0
"cygmenu-9.dll" v0.0 ts=2009/11/20 20:13
211k 2009/06/06 C:\cygwin\bin\cygmp-3.dll - os=4.0 img=1.0 sys=4.0
"cygmp-3.dll" v0.0 ts=2009/6/6 13:23
63k 2010/01/02 C:\cygwin\bin\cygncurses++-10.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++-10.dll" v0.0 ts=2010/1/2 16:00
66k 2009/03/01 C:\cygwin\bin\cygncurses++-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++-8.dll" v0.0 ts=2009/3/1 7:39
63k 2009/11/20 C:\cygwin\bin\cygncurses++-9.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++-9.dll" v0.0 ts=2009/11/20 20:25
195k 2010/01/02 C:\cygwin\bin\cygncurses-10.dll - os=4.0 img=1.0 sys=4.0
"cygncurses-10.dll" v0.0 ts=2010/1/2 15:45
237k 2009/03/01 C:\cygwin\bin\cygncurses-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses-8.dll" v0.0 ts=2009/3/1 7:28
198k 2009/11/20 C:\cygwin\bin\cygncurses-9.dll - os=4.0 img=1.0 sys=4.0
"cygncurses-9.dll" v0.0 ts=2009/11/20 20:10
13k 2010/01/02 C:\cygwin\bin\cygpanel-10.dll - os=4.0 img=1.0 sys=4.0
"cygpanel-10.dll" v0.0 ts=2010/1/2 15:47
11k 2009/03/01 C:\cygwin\bin\cygpanel-8.dll - os=4.0 img=1.0 sys=4.0
"cygpanel-8.dll" v0.0 ts=2009/3/1 7:30
13k 2009/11/20 C:\cygwin\bin\cygpanel-9.dll - os=4.0 img=1.0 sys=4.0
"cygpanel-9.dll" v0.0 ts=2009/11/20 20:12
224k 2010/06/15 C:\cygwin\bin\cygpcre-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcre-0.dll" v0.0 ts=2010/6/15 6:10
10k 2010/06/15 C:\cygwin\bin\cygpcreposix-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix-0.dll" v0.0 ts=2010/6/15 6:11
22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll - os=4.0 img=1.0 sys=4.0
"cygpopt-0.dll" v0.0 ts=2002/6/9 7:45
162k 2009/07/06 C:\cygwin\bin\cygreadline7.dll - os=4.0 img=1.0 sys=4.0
"cygreadline7.dll" v0.0 ts=2009/7/5 16:45
10k 2009/12/14 C:\cygwin\bin\cygsigsegv-2.dll - os=4.0 img=1.0 sys=4.0
"cygsigsegv-2.dll" v0.0 ts=2009/12/14 13:56
773k 2010/08/15 C:\cygwin\bin\cygstdc++-6.dll - os=4.0 img=1.0 sys=4.0
"cygstdc++-6.dll" v0.0 ts=2010/8/15 1:33
48k 2010/01/02 C:\cygwin\bin\cygtic-10.dll - os=4.0 img=1.0 sys=4.0
"cygtic-10.dll" v0.0 ts=2010/1/2 15:45
48k 2009/11/20 C:\cygwin\bin\cygtic-9.dll - os=4.0 img=1.0 sys=4.0
"cygtic-9.dll" v0.0 ts=2009/11/20 20:10
76k 2010/08/01 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2010/8/1 23:04
2586k 2010/08/31 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2010/8/31 9:58
Cygwin DLL version info:
DLL version: 1.7.7
DLL epoch: 19
DLL old termios: 5
DLL malloc env: 28
Cygwin conv: 181
API major: 0
API minor: 230
Shared data: 5
DLL identifier: cygwin1
Mount registry: 3
Cygwin registry name: Cygwin
Program options name: Program Options
Installations name: Installations
Cygdrive default prefix:
Build date:
Shared id: cygwin1S5
15k 2009/12/27 C:\cygwin\bin\cygattr-1.dll - os=4.0 img=1.0 sys=4.0
"cygattr-1.dll" v0.0 ts=2009/11/18 13:52
61k 2009/03/02 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2009/3/2 4:11
43k 2010/01/02 C:\cygwin\bin\cygform-10.dll - os=4.0 img=1.0 sys=4.0
"cygform-10.dll" v0.0 ts=2010/1/2 15:49
40k 2009/03/01 C:\cygwin\bin\cygform-8.dll - os=4.0 img=1.0 sys=4.0
"cygform-8.dll" v0.0 ts=2009/3/1 7:32
43k 2009/11/20 C:\cygwin\bin\cygform-9.dll - os=4.0 img=1.0 sys=4.0
"cygform-9.dll" v0.0 ts=2009/11/20 20:14
45k 2010/08/15 C:\cygwin\bin\cyggcc_s-1.dll - os=4.0 img=1.0 sys=4.0
"cyggcc_s-1.dll" v0.0 ts=2010/8/15 0:57
315k 2009/06/06 C:\cygwin\bin\cyggmp-3.dll - os=4.0 img=1.0 sys=4.0
"cyggmp-3.dll" v0.0 ts=2009/6/6 13:23
25k 2009/07/06 C:\cygwin\bin\cyghistory7.dll - os=4.0 img=1.0 sys=4.0
"cyghistory7.dll" v0.0 ts=2009/7/5 16:45
360k 2010/08/15 C:\cygwin\bin\cygicons-0.dll - os=4.0 img=1.4 sys=4.0
"cygicons-0.dll" v0.0 ts=2010/8/16 0:45
982k 2009/12/23 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2009/12/23 14:25
31k 2009/04/03 C:\cygwin\bin\cygintl-8.dll - os=4.0 img=1.0 sys=4.0
"cygintl-8.dll" v0.0 ts=2009/4/3 3:15
5k 2010/08/31 C:\cygwin\bin\cyglsa.dll - os=4.0 img=1.0 sys=4.0
"cyglsa.dll" v0.0 ts=2010/8/31 10:00
9k 2010/08/31 C:\cygwin\bin\cyglsa64.dll - os=5.2 img=0.0 sys=5.2
125k 2010/04/09 C:\cygwin\bin\cyglzma-1.dll - os=4.0 img=1.0 sys=4.0
"cyglzma-1.dll" v0.0 ts=2010/4/9 17:54
25k 2010/01/02 C:\cygwin\bin\cygmenu-10.dll - os=4.0 img=1.0 sys=4.0
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Cygwin DLL version info:
DLL version: 1.7.7
DLL epoch: 19
DLL old termios: 5
DLL malloc env: 28
Cygwin conv: 181
API major: 0
API minor: 230
Shared data: 5
DLL identifier: cygwin1
Mount registry: 3
Cygwin registry name: Cygwin
Program options name: Program Options
Installations name: Installations
Cygdrive default prefix:
Build date:
Shared id: cygwin1S5
Can't find the cygrunsrv utility, skipping services check.
Cygwin Package Information
Last downloaded files to: C:\Program Files\Mozilla Firefox
Last downloaded files from: http://ftp.inf.tu-dresden.de/software/windows/cygwin32/
Package Version
_update-info-dir 00938-1
alternatives 1.3.30c-10
base-cygwin 3.0-1
base-files 3.9-3
bash 3.2.51-24
bzip2 1.0.5-10
coreutils 8.8-1
cygutils 1.4.4-1
cygwin 1.7.7-1
cygwin-doc 1.7-1
dash 0.5.6.1-2
diffutils 2.9-1
editrights 1.01-2
findutils 4.5.9-2
gawk 3.1.8-1
gettext 0.17-11
grep 2.6.3-1
groff 1.20.1-2
gzip 1.3.12-2
ipc-utils 1.0-1
less 436-1
libattr1 2.4.43-1
libbz2_1 1.0.5-10
libgcc1 4.3.4-3
libgmp3 4.3.1-3
libiconv2 1.13.1-1
libintl8 0.17-11
liblzma1 4.999.9beta-11
libncurses10 5.7-18
libncurses8 5.5-10
libncurses9 5.7-16
libpcre0 8.02-1
libpopt0 1.6.4-4
libreadline7 6.0.3-2
libsigsegv2 2.8-1
libstdc++6 4.3.4-3
login 1.10-10
man 1.6f-1
rebase 3.0.1-1
run 1.1.12-11
sed 4.2.1-1
tar 1.25-1
terminfo 5.7_20091114-14
terminfo0 5.5_20061104-12
texinfo 4.13-3
tzcode 2010j-1
which 2.20-2
xz 4.999.9beta-11
zlib0 1.2.5-1
Use -h to see help about each section
[-- Attachment #3: Type: text/plain, Size: 218 bytes --]
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^ permalink raw reply [flat|nested] 8+ messages in thread* Re: 1.7.7 on Windows 7: can't write to removable disk
2011-01-10 13:55 tomas
@ 2011-01-11 14:58 ` Corinna Vinschen
2011-01-11 15:38 ` Corinna Vinschen
0 siblings, 1 reply; 8+ messages in thread
From: Corinna Vinschen @ 2011-01-11 14:58 UTC (permalink / raw)
To: cygwin
On Jan 10 10:40, tomas@datasupporten.se wrote:
> Hello.
> I'm trying to write a disk image to a compact flash card with dd, but I
> get the error:
> "dd: writing to /dev/sdj: Permission denied"
>
> Apart from the CF-card, I also tried a USB-stick with the same results.
> I'm logged in as administrator.
Please have a look into http://support.microsoft.com/kb/942448 first.
[...listening "De-Loused In The Comatorium" while waiting...]
Finished reading? Ok.
That's quite a serious restriction starting with Vista. If I destroy the
filesystem on one of my sd cards under Linux, I can then overwrite it
with dd under Cygwin. However, if that dd call created a valid
filesystem on the sd card, the next write fails again. For some reason
it does not help to unmount the filesystem on the drive via the "Disk
Management" MMC snap-in, despite the claim in the aforementioned
article.
The solution I just checked in to Cygwin is rather complicated, but
I really tested this a couple of hours now, and I didn't find any
other solution.
If you just want to write to a partition with a filesystem on it, say,
/dev/sdj1, then Cygwin just has to call DeviceIoControl(FSCTL_LOCK_VOLUME)
after opening the partition.
However, if you want to write to the entire device (/dev/sdj), then
Cygwin has to call DeviceIoControl(FSCTL_LOCK_VOLUME) for every single
volume on the disk! This in turn only works if you don't have an
open handle on any file on anyu of the partitions. Usually that should
be ok, and I didn't find any other solution for the problem.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 1.7.7 on Windows 7: can't write to removable disk
2011-01-11 14:58 ` Corinna Vinschen
@ 2011-01-11 15:38 ` Corinna Vinschen
2011-01-12 10:28 ` Corinna Vinschen
2011-01-12 10:48 ` Tomas Åkesson
0 siblings, 2 replies; 8+ messages in thread
From: Corinna Vinschen @ 2011-01-11 15:38 UTC (permalink / raw)
To: cygwin
On Jan 11 15:51, Corinna Vinschen wrote:
> On Jan 10 10:40, tomas@datasupporten.se wrote:
> > Hello.
> > I'm trying to write a disk image to a compact flash card with dd, but I
> > get the error:
> > "dd: writing to /dev/sdj: Permission denied"
> >
> > Apart from the CF-card, I also tried a USB-stick with the same results.
> > I'm logged in as administrator.
>
> Please have a look into http://support.microsoft.com/kb/942448 first.
>
> [...listening "De-Loused In The Comatorium" while waiting...]
>
> Finished reading? Ok.
>
> That's quite a serious restriction starting with Vista. If I destroy the
> filesystem on one of my sd cards under Linux, I can then overwrite it
> with dd under Cygwin. However, if that dd call created a valid
> filesystem on the sd card, the next write fails again. For some reason
> it does not help to unmount the filesystem on the drive via the "Disk
> Management" MMC snap-in, despite the claim in the aforementioned
> article.
>
> The solution I just checked in to Cygwin is rather complicated, but
> I really tested this a couple of hours now, and I didn't find any
> other solution.
I forgot the disclaimer:
Please test the next developer snapshot from http://cygwin.com/snapshots/
Thanks,
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 1.7.7 on Windows 7: can't write to removable disk
2011-01-11 15:38 ` Corinna Vinschen
@ 2011-01-12 10:28 ` Corinna Vinschen
2011-01-12 10:48 ` Tomas Åkesson
1 sibling, 0 replies; 8+ messages in thread
From: Corinna Vinschen @ 2011-01-12 10:28 UTC (permalink / raw)
To: cygwin
On Jan 11 15:55, Corinna Vinschen wrote:
> On Jan 11 15:51, Corinna Vinschen wrote:
> > On Jan 10 10:40, tomas@datasupporten.se wrote:
> > > Hello.
> > > I'm trying to write a disk image to a compact flash card with dd, but I
> > > get the error:
> > > "dd: writing to /dev/sdj: Permission denied"
> > >
> > > Apart from the CF-card, I also tried a USB-stick with the same results.
> > > I'm logged in as administrator.
> >
> > Please have a look into http://support.microsoft.com/kb/942448 first.
> >
> > [...listening "De-Loused In The Comatorium" while waiting...]
> >
> > Finished reading? Ok.
> >
> > That's quite a serious restriction starting with Vista. If I destroy the
> > filesystem on one of my sd cards under Linux, I can then overwrite it
> > with dd under Cygwin. However, if that dd call created a valid
> > filesystem on the sd card, the next write fails again. For some reason
> > it does not help to unmount the filesystem on the drive via the "Disk
> > Management" MMC snap-in, despite the claim in the aforementioned
> > article.
> >
> > The solution I just checked in to Cygwin is rather complicated, but
> > I really tested this a couple of hours now, and I didn't find any
> > other solution.
>
> I forgot the disclaimer:
>
> Please test the next developer snapshot from http://cygwin.com/snapshots/
Update: I checked in a revised version of the patch.
The code from yesterday tried to lock all partitions at open() time at
once, which is hardly minimal-invasive. It would even try to lock all
partitions if you just overwrite the boot sector.
With the new code, a partition lock is only triggered on-demand. As
soon as a write() call fails with "Access denied", it searches the
partition table for a partition which overlaps with the current write
position and then tries to lock only that partition.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 1.7.7 on Windows 7: can't write to removable disk
2011-01-11 15:38 ` Corinna Vinschen
2011-01-12 10:28 ` Corinna Vinschen
@ 2011-01-12 10:48 ` Tomas Åkesson
1 sibling, 0 replies; 8+ messages in thread
From: Tomas Åkesson @ 2011-01-12 10:48 UTC (permalink / raw)
To: cygwin
Tuesday the 11 January 2011 15.55.50 Corinna Vinschen wrote:
> On Jan 11 15:51, Corinna Vinschen wrote:
> > On Jan 10 10:40, tomas@datasupporten.se wrote:
> > > Hello.
> > > I'm trying to write a disk image to a compact flash card with dd, but I
> > > get the error:
> > > "dd: writing to /dev/sdj: Permission denied"
> > >
> > > Apart from the CF-card, I also tried a USB-stick with the same results.
> > > I'm logged in as administrator.
> >
> > Please have a look into http://support.microsoft.com/kb/942448 first.
> >
> > [...listening "De-Loused In The Comatorium" while waiting...]
> >
> > Finished reading? Ok.
> >
> > That's quite a serious restriction starting with Vista. If I destroy the
> > filesystem on one of my sd cards under Linux, I can then overwrite it
> > with dd under Cygwin. However, if that dd call created a valid
> > filesystem on the sd card, the next write fails again. For some reason
> > it does not help to unmount the filesystem on the drive via the "Disk
> > Management" MMC snap-in, despite the claim in the aforementioned
> > article.
> >
> > The solution I just checked in to Cygwin is rather complicated, but
> > I really tested this a couple of hours now, and I didn't find any
> > other solution.
>
> I forgot the disclaimer:
>
> Please test the next developer snapshot from http://cygwin.com/snapshots/
Thanks for the info. If I get the time I'll try the snapshot. For now I've got
a workaround (using Linux).
Tomas
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2013-02-22 10:50 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-02-21 22:55 1.7.7 on Windows 7: can't write to removable disk Latchen McKinney
2013-02-21 23:07 ` Larry Hall (Cygwin)
2013-02-22 10:50 ` Andrey Repin
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2011-01-10 13:55 tomas
2011-01-11 14:58 ` Corinna Vinschen
2011-01-11 15:38 ` Corinna Vinschen
2011-01-12 10:28 ` Corinna Vinschen
2011-01-12 10:48 ` Tomas Åkesson
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