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* RAID devices not listed under /dev
@ 2012-07-20 22:31 Aaron Schneider
  2012-07-21  9:12 ` Corinna Vinschen
  0 siblings, 1 reply; 7+ messages in thread
From: Aaron Schneider @ 2012-07-20 22:31 UTC (permalink / raw)
  To: cygwin

The tested computer has SSD dual (RAID 0), 2x64GB, partition type is MBR.

Fedora-17-x86_64-Live-Desktop shows the following devices:

(parted) print devices
/dev/sda (64.0GB)
/dev/sdb (64.0GB)
/dev/mapper/live-osimg-min (4295MB)
/dev/mapper/live-rw (4295MB)
/dev/sr0 (676MB)
/dev/md126 (128GB)
(parted) quit

/dev/md126 is the virtual c: drive presented to Windows.
The list of device's partition table:

---------------

[root@localhost liveuser]# parted -l
Error: Can't have a partition outside the disk!
Model: ATA TOSHIBA THNSNC06 (scsi)
Disk /dev/sda: 64.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

Error: /dev/sdb: unrecognised disk label
Model: ATA TOSHIBA THNSNC06 (scsi)
Disk /dev/sdb: 64.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

Model: Linux device-mapper (snapshot) (dm)
Disk /dev/mapper/live-osimg-min: 4295MB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End     Size    File system  Flags
  1      0.00B  4295MB  4295MB  ext4

Model: Linux device-mapper (snapshot) (dm)
Disk /dev/mapper/live-rw: 4295MB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End     Size    File system  Flags
  1      0.00B  4295MB  4295MB  ext4

Error: The partition's data region doesn't occupy the entire partition.
Ignore/Cancel? I
Error: Can't have overlapping partitions.
Model: MATSHITA DVD-RAM UJ892AS (scsi)
Disk /dev/sr0: 676MB
Sector size (logical/physical): 2048B/2048B
Partition Table: unknown
Disk Flags:

Model: Linux Software RAID Array (md)
Disk /dev/md126: 128GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
  1      1049kB  8450MB  8449MB  primary  ntfs         diag
  2      8450MB  8555MB  105MB   primary  ntfs         boot
  3      8555MB  128GB   119GB   primary  ntfs
---------------

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: RAID devices not listed under /dev
  2012-07-20 22:31 RAID devices not listed under /dev Aaron Schneider
@ 2012-07-21  9:12 ` Corinna Vinschen
  2012-07-21 11:09   ` Aaron Schneider
  0 siblings, 1 reply; 7+ messages in thread
From: Corinna Vinschen @ 2012-07-21  9:12 UTC (permalink / raw)
  To: cygwin

On Jul 21 00:30, Aaron Schneider wrote:
> The tested computer has SSD dual (RAID 0), 2x64GB, partition type is MBR.
> 
> Fedora-17-x86_64-Live-Desktop shows the following devices:
> [...]

Wrong mailing list?


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] 7+ messages in thread

* Re: RAID devices not listed under /dev
  2012-07-21  9:12 ` Corinna Vinschen
@ 2012-07-21 11:09   ` Aaron Schneider
  2012-07-23  7:50     ` Corinna Vinschen
  0 siblings, 1 reply; 7+ messages in thread
From: Aaron Schneider @ 2012-07-21 11:09 UTC (permalink / raw)
  To: cygwin

On 21/07/2012 11:11, Corinna Vinschen wrote:
> On Jul 21 00:30, Aaron Schneider wrote:
>> The tested computer has SSD dual (RAID 0), 2x64GB, partition type is MBR.
>>
>> Fedora-17-x86_64-Live-Desktop shows the following devices:
>> [...]
>
> Wrong mailing list?
>
>
> Corinna
>

Not at all. I mean that fedora live dvd sees the virtual raid device 
md126 while cygwin doesn't under /dev.

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: RAID devices not listed under /dev
  2012-07-21 11:09   ` Aaron Schneider
@ 2012-07-23  7:50     ` Corinna Vinschen
  2012-07-23 18:20       ` RAID devices not listed under /dev on cygwin Aaron Schneider
  0 siblings, 1 reply; 7+ messages in thread
From: Corinna Vinschen @ 2012-07-23  7:50 UTC (permalink / raw)
  To: cygwin

On Jul 21 13:09, Aaron Schneider wrote:
> On 21/07/2012 11:11, Corinna Vinschen wrote:
> >On Jul 21 00:30, Aaron Schneider wrote:
> >>The tested computer has SSD dual (RAID 0), 2x64GB, partition type is MBR.
> >>
> >>Fedora-17-x86_64-Live-Desktop shows the following devices:
> >>[...]
> >
> >Wrong mailing list?
> >
> >
> >Corinna
> >
> 
> Not at all. I mean that fedora live dvd sees the virtual raid device
> md126 while cygwin doesn't under /dev.

Oh, come one.  You wrote a mail exclusively with Linux content.  How
was anybody supposed to know this is about Cygwin at all?

Cygwin lists the devices which are harddisks in terms of the native NT
namespace.  What you see are the translations of the device names
\Device\HarddiskX\PartitionY to /dev/sd*.
If the device you're referring to is is not available as device in
this notation, you won't see it.

If you can find the NT equivalent of your Linux md126 device in the
native NT namespace under /proc/sys/Device, we can talk about covering
them somehow.  Other than that, you can probably access it via
/cygdrive/<drive-letter>, right?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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* Re: RAID devices not listed under /dev on cygwin
  2012-07-23  7:50     ` Corinna Vinschen
@ 2012-07-23 18:20       ` Aaron Schneider
  2012-07-23 19:27         ` Corinna Vinschen
  0 siblings, 1 reply; 7+ messages in thread
From: Aaron Schneider @ 2012-07-23 18:20 UTC (permalink / raw)
  To: cygwin

[-- Attachment #1: Type: text/plain, Size: 1545 bytes --]

On 23/07/2012 9:49, Corinna Vinschen wrote:
> On Jul 21 13:09, Aaron Schneider wrote:
>> On 21/07/2012 11:11, Corinna Vinschen wrote:
>>
>> Not at all. I mean that fedora live dvd sees the virtual raid device
>> md126 while cygwin doesn't under /dev.
>
> Oh, come one.  You wrote a mail exclusively with Linux content.  How
> was anybody supposed to know this is about Cygwin at all?
>
> Cygwin lists the devices which are harddisks in terms of the native NT
> namespace.  What you see are the translations of the device names
> \Device\HarddiskX\PartitionY to /dev/sd*.
> If the device you're referring to is is not available as device in
> this notation, you won't see it.
>
> If you can find the NT equivalent of your Linux md126 device in the
> native NT namespace under /proc/sys/Device, we can talk about covering
> them somehow.  Other than that, you can probably access it via
> /cygdrive/<drive-letter>, right?
>
>
> Corinna
>

You are right that I wasn't clear enough in the title, sorry for that.

As well I made a mistake in naming, the c: drive in windows (which is 
mounted in /cygdrive/c/) is md123p3 in linux not md123 which is the 
whole raid volume.

But, taking it back into windows, I've found that the raid volume is at 
either of these locations:

\\.\PhysicalDrive0
\Device\Harddisk0\Partition0
/proc/sys/Device/Harddisk0/DR0
/proc/sys/Device/Harddisk0/Partition0 -> /proc/sys/Device/Harddisk0/DR0
IDE\DISKVOLUME01.0.00__\4&A4B6A57&0&0.0.0

Here is also the attachment Volume0_raid_info.txt with extensive 
information.



[-- Attachment #2: Volume0_raid_info.txt --]
[-- Type: text/plain, Size: 12033 bytes --]

c:\Downloads> dskwipe.exe -l
Device Name                         Size Type      Partition Type
------------------------------ --------- --------- --------------------
\\.\PhysicalDrive0                128 GB Fixed                         
\Device\Harddisk0\Partition0      128 GB Fixed                         
\Device\Harddisk0\Partition1      8.4 GB Fixed     0x27                
\Device\Harddisk0\Partition2      104 MB Fixed     NTFS                
\Device\Harddisk0\Partition3      119 GB Fixed     NTFS                
\\.\C:                            119 GB Fixed     NTFS                
\\.\D:                            2.1 GB Fixed     FAT32 


$ ls -l /proc/sys/Device/Harddisk0/
total 0
brwxrwx--x 1 Administrators SYSTEM 0, 250 Jul 23 18:14 DR0
lr--r--r-- 1 Administrators SYSTEM      0 Jul 23 18:14 Partition0 -> /proc/sys/Device/Harddisk0/DR0
lr--r--r-- 1 Administrators SYSTEM      0 Jul 23 18:14 Partition1 -> /proc/sys/Device/HarddiskVolume1
lr--r--r-- 1 Administrators SYSTEM      0 Jul 23 18:14 Partition2 -> /proc/sys/Device/HarddiskVolume2
lr--r--r-- 1 Administrators SYSTEM      0 Jul 23 18:14 Partition3 -> /proc/sys/Device/HarddiskVolume3

$ wmic diskdrive
Availability  BytesPerSector  Capabilities  CapabilityDescriptions                                       Caption  CompressionMethod  ConfigManagerErrorCode  ConfigManagerUserConfig  CreationClassName  DefaultBlockSize  Description  DeviceID            ErrorCleared  ErrorDescription  ErrorMethodology  FirmwareRevision  Index  InstallDate  InterfaceType  LastErrorCode  Manufacturer            MaxBlockSize  MaxMediaSize  MediaLoaded  MediaType              MinBlockSize  Model    Name                NeedsCleaning  NumberOfMediaSupported  Partitions  PNPDeviceID                                PowerManagementCapabilities  PowerManagementSupported  SCSIBus  SCSILogicalUnit  SCSIPort  SCSITargetId  SectorsPerTrack  SerialNumber  Signature   Size          Status  StatusInfo  SystemCreationClassName  SystemName  TotalCylinders  TotalHeads  TotalSectors  TotalTracks  TracksPerCylinder  
              512             {3, 4, 10}    {"Random Access", "Supports Writing", "SMART Notification"}  Volume0                     0                       FALSE                    Win32_DiskDrive                      Disk drive   \\.\PHYSICALDRIVE0                                                    1.0.              0                   SCSI                          (Standard disk drives)                              TRUE         Fixed hard disk media                Volume0  \\.\PHYSICALDRIVE0                                         3           IDE\DISKVOLUME01.0.00__\4&A4B6A57&0&0.0.0                                                         0        0                0         0             63               Volume0       -322836739  128034708480  OK                  Win32_ComputerSystem     VAIO        15566           255         250067790     3969330      255                

$ wmic volume
Access  Automount  Availability  BlockSize  BootVolume  Capacity      Caption                                            Compressed  ConfigManagerErrorCode  ConfigManagerUserConfig  CreationClassName  Description  DeviceID                                           DirtyBitSet  DriveLetter  DriveType  ErrorCleared  ErrorDescription  ErrorMethodology  FileSystem  FreeSpace    IndexingEnabled  InstallDate  Label            LastErrorCode  MaximumFileNameLength  Name                                               NumberOfBlocks  PageFilePresent  PNPDeviceID  PowerManagementCapabilities  PowerManagementSupported  Purpose  QuotasEnabled  QuotasIncomplete  QuotasRebuilding  SerialNumber  Status  StatusInfo  SupportsDiskQuotas  SupportsFileBasedCompression  SystemCreationClassName  SystemName  SystemVolume  
        TRUE                     4096       FALSE       104853504     \\?\Volume{79e34f92-5965-11e0-b596-806e6f6e6963}\  FALSE                                                                                        \\?\Volume{79e34f92-5965-11e0-b596-806e6f6e6963}\  FALSE                     3                                                            NTFS        73744384     TRUE                          System Reserved                 255                    \\?\Volume{79e34f92-5965-11e0-b596-806e6f6e6963}\                  FALSE                                                                                         FALSE          FALSE             FALSE             716741096                         TRUE                TRUE                                                   VAIO        TRUE          
        TRUE                     4096       TRUE        119485231104  C:\                                                FALSE                                                                                        \\?\Volume{79e34f93-5965-11e0-b596-806e6f6e6963}\  FALSE        C:           3                                                            NTFS        33593618432  TRUE                                                          255                    C:\                                                                TRUE                                                                                          FALSE          TRUE              FALSE             1656313325                        TRUE                TRUE                                                   VAIO        FALSE         
        TRUE                     4096       FALSE       8449421312    \\?\Volume{79e34f91-5965-11e0-b596-806e6f6e6963}\  FALSE                                                                                        \\?\Volume{79e34f91-5965-11e0-b596-806e6f6e6963}\  FALSE                     3                                                            NTFS        841162752    TRUE                          Recovery                        255                    \\?\Volume{79e34f91-5965-11e0-b596-806e6f6e6963}\                  FALSE                                                                                         FALSE          FALSE             FALSE             39094928                          TRUE                TRUE                                                   VAIO        FALSE         
        TRUE                                                          D:\                                                                                                                                             \\?\Volume{79e34f98-5965-11e0-b596-806e6f6e6963}\               D:           5                                                                                                                                                                          D:\                                                                                                                                                                                                                                                                                                                              VAIO                      

----------- Volume0 registry key --------------------

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__\4&a4b6a57&0&0.0.0]
"DeviceDesc"="@disk.inf,%disk_devdesc%;Disk drive"
"LocationInformation"="0"
"Capabilities"=dword:00000080
"HardwareID"=hex(7):49,00,44,00,45,00,5c,00,44,00,69,00,73,00,6b,00,56,00,6f,\
  00,6c,00,75,00,6d,00,65,00,30,00,31,00,2e,00,30,00,2e,00,30,00,30,00,5f,00,\
  5f,00,00,00,49,00,44,00,45,00,5c,00,56,00,6f,00,6c,00,75,00,6d,00,65,00,30,\
  00,31,00,2e,00,30,00,2e,00,30,00,30,00,5f,00,5f,00,00,00,49,00,44,00,45,00,\
  5c,00,44,00,69,00,73,00,6b,00,56,00,6f,00,6c,00,75,00,6d,00,65,00,30,00,00,\
  00,56,00,6f,00,6c,00,75,00,6d,00,65,00,30,00,31,00,2e,00,30,00,2e,00,30,00,\
  30,00,5f,00,5f,00,00,00,47,00,65,00,6e,00,44,00,69,00,73,00,6b,00,00,00,00,\
  00
"CompatibleIDs"=hex(7):47,00,65,00,6e,00,44,00,69,00,73,00,6b,00,00,00,00,00
"ContainerID"="{00000000-0000-0000-ffff-ffffffffffff}"
"Service"="disk"
"ClassGUID"="{4d36e967-e325-11ce-bfc1-08002be10318}"
"ConfigFlags"=dword:00000000
"Driver"="{4d36e967-e325-11ce-bfc1-08002be10318}\\0000"
"Class"="DiskDrive"
"Mfg"="@disk.inf,%genmanufacturer%;(Standard disk drives)"
"FriendlyName"="Volume0"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__\4&a4b6a57&0&0.0.0\Device Parameters]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__\4&a4b6a57&0&0.0.0\Device Parameters\Partmgr]
"Attributes"=dword:00000000
"DiskId"="{3319cd68-9372-11df-9eb3-806e6f6e6963}"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__\4&a4b6a57&0&0.0.0\LogConf]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE\DiskVolume01.0.00__\4&a4b6a57&0&0.0.0\Control]
"ActiveService"="Disk"


----- devmgmt.msc -> Disk Drives -> Volume0 -> Properties -> Details ----------

- Device description -
Disk drive

- Hardware Ids -
IDE\DiskVolume01.0.00__
IDE\Volume01.0.00__
IDE\DiskVolume0
Volume01.0.00__
GenDisk

- Compatible Ids -
GenDisk

- Service -
disk

- Device class -
DiskDrive

- Device class guid -
{4d36e967-e325-11ce-bfc1-08002be10318}

- Driver key -
{4d36e967-e325-11ce-bfc1-08002be10318}\0000

- Config flags -
00000000

- Manufacturer -
(Standard disk drives)

- Friendly name -
Volume0

- Location information -
0

- Physical Device Object name -
\Device\Ide\IAAStorageDevice-1

- Capabilities -
00000080
CM_DEVCAP_SURPRISEREMOVALOK

- Bus type guid -
{1530ea73-086b-11d1-a09f-00c04fc340b1}

- Legacy bus type -
0000000F

- Bus number -
00000000

- Enumerator -
IDE

- Power data -
Current power state:
D0

Power capabilities:
0000000B
PDCAP_D0_SUPPORTED
PDCAP_D1_SUPPORTED
PDCAP_D3_SUPPORTED

Power state mappings:
S0 -> D0
S1 -> D1
S2 -> Unspecified
S3 -> D3
S4 -> D3
S5 -> D3

- Removal policy -
00000001

- Removal policy default -
00000001

- Install state -
00000000

- Base container Id -
{00000000-0000-0000-ffff-ffffffffffff}

- Display name -
Volume0

- Device Instance Path -
IDE\DISKVOLUME01.0.00__\4&A4B6A57&0&0.0.0

- DevNode status -
0180000A
DN_DRIVER_LOADED
DN_STARTED
DN_NT_ENUMERATOR
DN_NT_DRIVER

- Problem code -
00000000

- Removal relations -
STORAGE\Volume\{3319cd68-9372-11df-9eb3-806e6f6e6963}#0000000000100000
STORAGE\Volume\{3319cd68-9372-11df-9eb3-806e6f6e6963}#00000001F7B00000
STORAGE\Volume\{3319cd68-9372-11df-9eb3-806e6f6e6963}#00000001FDF00000

- Parent -
PCI\VEN_8086&DEV_282A&SUBSYS_905A104D&REV_05\3&11583659&0&FA

- Siblings -
IDE\CdRomMATSHITA_DVD-RAM_UJ892AS________________1.21____\4&a4b6a57&0&0.1.0

- Container Id -
{00000000-0000-0000-ffff-ffffffffffff}

- Safe Removal Required -
<false>

- Bus reported device description -
Volume0

- Device Node Strong Name -
disk.inf:disk_device.NTamd64:disk_install:6.1.7600.16385:gendisk

- Install date -
19/07/2010 22:14:57

- First install date -
19/07/2010 22:14:57

- Driver assembly date -
21/06/2006 2:00:00

- Driver assembly version -
6.1.7600.16385

- Driver assembly description -
Disk drive

- Inf name -
disk.inf

- Inf section -
disk_install

- Inf section extension -
.NT

- Matching device Id -
gendisk

- Provider -
Microsoft

- Rank of Installed Driver -
00FF0004

- Class upper filters -
tdrpman273
PartMgr
snapman
tdrpman273

- Class default device type -
00000007

- Class default characteristics -
00000100

- Class long name -
Disk drives

- Class short name -
DiskDrive

- Class installer -
StorProp.Dll,DiskClassInstaller

- No install class -
<true>

- Silent install class -
<true>

- Class icon path -
%SystemRoot%\System32\imageres.dll,-32

- Display name -
Disk drives

- Class co-installers -
SysClass.Dll,StorageCoInstaller
SysClass.Dll,CriticalDeviceCoInstaller

[-- Attachment #3: Type: text/plain, Size: 218 bytes --]

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: RAID devices not listed under /dev on cygwin
  2012-07-23 18:20       ` RAID devices not listed under /dev on cygwin Aaron Schneider
@ 2012-07-23 19:27         ` Corinna Vinschen
  2012-07-23 19:58           ` Aaron Schneider
  0 siblings, 1 reply; 7+ messages in thread
From: Corinna Vinschen @ 2012-07-23 19:27 UTC (permalink / raw)
  To: cygwin

On Jul 23 20:20, Aaron Schneider wrote:
> On 23/07/2012 9:49, Corinna Vinschen wrote:
> >On Jul 21 13:09, Aaron Schneider wrote:
> >>On 21/07/2012 11:11, Corinna Vinschen wrote:
> >>
> >>Not at all. I mean that fedora live dvd sees the virtual raid device
> >>md126 while cygwin doesn't under /dev.
> >
> >Oh, come one.  You wrote a mail exclusively with Linux content.  How
> >was anybody supposed to know this is about Cygwin at all?
> >
> >Cygwin lists the devices which are harddisks in terms of the native NT
> >namespace.  What you see are the translations of the device names
> >\Device\HarddiskX\PartitionY to /dev/sd*.
> >If the device you're referring to is is not available as device in
> >this notation, you won't see it.
> >
> >If you can find the NT equivalent of your Linux md126 device in the
> >native NT namespace under /proc/sys/Device, we can talk about covering
> >them somehow.  Other than that, you can probably access it via
> >/cygdrive/<drive-letter>, right?
> >
> >
> >Corinna
> >
> 
> You are right that I wasn't clear enough in the title, sorry for that.
> 
> As well I made a mistake in naming, the c: drive in windows (which
> is mounted in /cygdrive/c/) is md123p3 in linux not md123 which is
> the whole raid volume.
> 
> But, taking it back into windows, I've found that the raid volume is
> at either of these locations:
> 
> [...]
> \Device\Harddisk0\Partition0

In that case, I hope the following section in the User's Guide helps:
http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-posixdevices


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] 7+ messages in thread

* Re: RAID devices not listed under /dev on cygwin
  2012-07-23 19:27         ` Corinna Vinschen
@ 2012-07-23 19:58           ` Aaron Schneider
  0 siblings, 0 replies; 7+ messages in thread
From: Aaron Schneider @ 2012-07-23 19:58 UTC (permalink / raw)
  To: cygwin

On 23/07/2012 21:27, Corinna Vinschen wrote:
> On Jul 23 20:20, Aaron Schneider wrote:
>> But, taking it back into windows, I've found that the raid volume is
>> at either of these locations:
>>
>> [...]
>> \Device\Harddisk0\Partition0
>
> In that case, I hope the following section in the User's Guide helps:
> http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-posixdevices
>
>
> Corinna
>

Yes after checking /dev/sda is the whole raid0 device

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end of thread, other threads:[~2012-07-23 19:58 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-07-20 22:31 RAID devices not listed under /dev Aaron Schneider
2012-07-21  9:12 ` Corinna Vinschen
2012-07-21 11:09   ` Aaron Schneider
2012-07-23  7:50     ` Corinna Vinschen
2012-07-23 18:20       ` RAID devices not listed under /dev on cygwin Aaron Schneider
2012-07-23 19:27         ` Corinna Vinschen
2012-07-23 19:58           ` Aaron Schneider

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