RDS 2012 Encrypted USB drives

So we are about a week into our RDS 2012 VDI roll out. We have made 100% thin clients, in fact we have even replaced the shell. unencrypted flash drives work just fine. They mount up and redirect. However encrypted flash drives are giving us problems.
It works if we drop back into the thin client and deencrypt but since we replaced the shell our end users can not do this. What options do i have here?

Hi,
Firstly please explain what you want to perform. Additionally are you using BitLocker Drive Encryption on your server? Have you used RemoteFX feature on your server?
“Drive redirection does not provide low-level access to the redirected drive. As such, the following are not supported in the remote session: Managing BitLocker-encrypted USB storage “(Quoted from article).
Meanwhile take a look at below article.
Introducing Microsoft RemoteFX USB Redirection: Part 3
http://blogs.msdn.com/b/rds/archive/2010/11/08/introducing-microsoft-remotefx-usb-redirection-part-3.aspx
BitLocker: How to deploy on Windows Server 2012
http://technet.microsoft.com/en-us/library/jj612864.aspx
RemoteFX USB Redirection in Windows Server 2012 and Windows 8
http://blogs.msdn.com/b/rds/archive/2012/09/11/remotefx-usb-redirection-in-windows-server-2012-and-windows-8.aspx
Hope it helps!
Thanks.

Similar Messages

Can an encrypted USB drive be used with the Airport Extreme?

I would like to keep an encrypted USB drive hooked up to my Airport Extreme (A1354) so that I can use it for a hand archive of documents I might need to reference on the road or conveniently within my home, mainly because it would be handier than having to plug and unplug a USB device into whatever computer I'm using, and would allow my wife to do the same with her computer. I know most internet providers provide a service like this, but I figured why not just do this with my Airport Extreme?
I've read posts from people who have taken encrypted USB volumes generated from their MacBook Pro, and plug that USB device into the Airport Extreme. The Airport recognized the device exists, but it is you can't actually use it as an encrypted volume. This seems like a flaw on the part of Apple if you can't do this, as this device is a much more expensive solution that what most wireless routers provide.
Has anybody figured this one out?

Doubtful it's going to work.
Does it see the same disk if it's formatted just Journaled (ie, not encrypted)?
The tehnical article isn't entirely clear . . . it just says Mac OS Extended: AirPort Extreme (802.11n) and Time Capsule: USB storage device supported formats and protocols
It was last modified June 14, 2011, a couple of weeks before Lion was released with the ability to encrypt drives.
Note that ExFAT is supported on Macs effective with 10.6.5, but not Airport Extremes; there's no reason to think encryption is any different.

HP ThinPro T520 - RDS 2012 R2 USB Redircetions

Dear Community, My Devices:
HP T520 Flexible Series TC T6X52011 with ThinPro Operation System (latest available). I'm trying to connect to a Windows 2012 R2 Remote Desktop Services Farm - with Session Broker enabled. Connection Works without any issues, but the USB Redirection to the Members of the "Session Broker Farm" won't work. Connection to a RDS 2012 R2 Server, who is not member of a Farm/Session Broker , is working fine, USB Device (Stick) is displayed at the Terminal Surface. Connection to the same Farm with a Windows 8 Client works fine - also with usb redirection. I tried serveral settings at the RDP Connection Properations @ ThinPro, but no success. Does Anyone have similar issues ?
brf1refox

Hi,
Regarding the error Failed to create KVP sessions string, please refer to Microsoft Jim’s reply in this thread to see if it resolves the issue:
Failed to create KVP sessions string. Error Code 0x8007007A
https://social.technet.microsoft.com/Forums/en-US/2fd453ce-e018-4c1a-8424-c32fcb89b2ba/failed-to-create-kvp-sessions-string-error-code-0x8007007a?forum=winserverTS
In addition, here are a few more links below regarding the licensing issue for you:
TS CALs being picked up by our Terminal servers itself
https://social.technet.microsoft.com/Forums/windowsserver/en-US/e929bd18-b4bd-4d55-98b3-d8d4f608f3f3/ts-cals-being-picked-up-by-our-terminal-servers-itself?forum=winserverTS
Microsoft licensing changes: How do they apply to Remote Desktop Session Host?
https://social.technet.microsoft.com/Forums/windowsserver/en-US/2366acda-7eb6-4fa1-9c5b-479717a63238/microsoft-licensing-changes-how-do-they-apply-to-remote-desktop-session-host?forum=winserverTS
Licensing Diagnosis: Problems and Resolutions
http://blogs.msdn.com/b/rds/archive/2008/02/01/licensing-diagnosis-problems-and-resolutions.aspx
Best Regards,
Amy
Please remember to mark the replies as answers if they help and un-mark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]

Pcmanfm is "Not Authorized" to mount usb drives

Hi,
I recently installed arch linux it's a nice distro but I got a few problem with it.
The biggest one is that I am actually not able to mount usb drives with pcmanfm this means that I am not able to use my old debian /home so far.
I tired multiple thinks (some of them are still active) e.g for example I used to setup a udev rules which wasn't helpful at all (and even after deleting this rule I always see server empty folder in /media (but that's another problem)).
Any ideas why I am not able to mount encrypted and not encrypted USB drives in arch linux?
Last edited by 42sec (2011-12-28 13:21:41)

wonder wrote:paste ck-list-sessions output, uname -r and cat /etc/pam.d/login
[sec42@archlinux ~]$ ck-list-sessions
Session1:
unix-user = '1000'
realname = ''
seat = 'Seat1'
session-type = ''
active = FALSE
x11-display = ''
x11-display-device = ''
display-device = '/dev/tty1'
remote-host-name = ''
is-local = TRUE
on-since = '2011-12-28T14:28:01.840505Z'
login-session-id = '1'
idle-since-hint = '2011-12-28T14:28:32.462384Z'
[sec42@archlinux ~]$ uname -r
3.1.5-1-ARCH
[sec42@archlinux ~]$ cat /etc/pam.d/login
#%PAM-1.0
auth required pam_securetty.so
auth requisite pam_nologin.so
auth required pam_unix.so nullok
auth required pam_tally.so onerr=succeed file=/var/log/faillog
# use this to lockout accounts for 10 minutes after 3 failed attempts
#auth required pam_tally.so deny=2 unlock_time=600 onerr=succeed file=/var/log/faillog
account required pam_access.so
account required pam_time.so
account required pam_unix.so
#password required pam_cracklib.so difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
#password required pam_unix.so sha512 shadow use_authtok
session required pam_unix.so
session required pam_env.so
session required pam_motd.so
session required pam_limits.so
session optional pam_mail.so dir=/var/spool/mail standard
session optional pam_lastlog.so
session optional pam_loginuid.so
-session optional pam_ck_connector.so nox11
-session optional pam_systemd.so

Can I disconnect a bitlocker USB drive that is in a state of Decryption (paused) and attach to another machine?

Can I disconnect a bitlocker USB drive that is in a state of Decryption (paused) and attach to another machine?
The background on this question is that I didn't realize at first that I was plugged in to a USB 1.1 hub and it took over 1 hour just to get to 1% decryption. I've paused the decryption but a tad hesitant to disconnect and plug in to another system.

Hi,
How about your problem now? Generally speaking, when you encrypt USB drive using Bitlocker, you can pause encryption if you need to remove the device for some reason. If you don't do so, you could damage or lose files stored on the device.
If you need further assistance on this particular issue or any other Windows related issue, let us know and we will be glad to assist you.
Roger Lu
TechNet Community Support

Macbook 2012 not booting from internal drive but booting from external usb drive

hi everyone!!
here is what happened:
i have worked all day on my macbook pro, normally. when i got home and turned it on (i always power it off for rolling with it) it just didn't load the OS.
i run mavericks on a i7 mid 2012 macbook pro 13". it had an accident on last december and fell on the ground, but i've changed the hdd and it worked normally until last week when this happened.
i have a copy of my system on a usb drive and tried to start up from it and it worked.
i took my hdd from inside the lap top and started from it (yes, the same hard disk that was inside the machine) and it worked.
i took the macbook to an apple store and the "apple genius" that was there started up my machine from inside with another hdd running yosemite that they have in the store for testing.
today i bought a new hdd and put it in. but i can't format it or install the system. i had these 2 errors on disk utility
"partition failed with the error: wiping volume data to prevent future accidental probing failed"
and
"restore failure an error (32) occurred while copying. (broken pipe)
so:
it loads from my internal drive, but only when its connected via usb
it loaded the apple store drive internally
it does not format my new drive nor install the system on it
ANY suggestions, please??? it's really difficult to me to solve this problem...
thanks a lot!!!

Must be a bad SATA cable undetected by Apple Techs. A result of the drop but they are also quite fragile.
Disturbing the cable can cause it to work for a while. Cheap repair at iFixIt.

Windows Server 2012 R2 Essentials will only recognize 1 USB drive at a time in primordial pool

I have a new install of Windows Server 2012 R2 Essentials. I added 2 identical 2TB Seagate Expansion USB drives. Initially they had a volume on them, so I deleted the volume in order for them to be added to the primordial pool and storage spaces,
etc. They both show up fine in Disk Management, but only 1 of them at a time will show up in the primordial pool. I have tested moving them to different USB ports, trying only 1 disk at a time to ensure that both are good, rebooted, attached them via
a USB hub... but nothing works. In my most recent test I plugged in only one and did a rescan. I see it as Disk 1 in both Disk Management and Primordial pool. Then I added the second drive and did a rescan, it showed up as Disk 2 in Disk Management
and when I did a refresh in storage spaces, I can see that it changed to only see disk 2 in the primordial pool. What can be causing this?

To use USB disks, each disk must be plugged into a differs USB controller. A hub will obviously be on one controller, so that won't work. But many computers have only one or two controllers on the motherboard and then use port multipliers (basically internal
hubs) to support more ports. So you have to know your motherboard and which ports are on which controllers. And again, only one drive per controller.

My USB drive won't show up on my MacBook Pro (2012 non retina)

Okay, so I have 2 Macs. 2012 MacBook Pro, and a PPC iMac G4. I want to load music onto my USB drive, but it dosen't show up on my MacBook Pro. My iMac can read the USB without a problem, but the MacBook Pro will not. Iv'e made sure to check off everything in Finder Preferences, and also reveal everything in the Finder Side Bar, but still nothing will happen. I even tried looking for it in Disk Utility, and still nothing. Please Help.

Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Boot into Recovery and launch Disk Utility. Is the drive recognized?
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

USB drive encrypted w/FileVault2 on MBA can't be read on MBP

I encrypted an external USB drive on my Macbook Air that had existing data using the internal encryption, and that works fine. I can unmount and remount, and it requires the password as expected. However, it won't mount on my Macbook Pro, even though they are at the same OS level, 10.8.2. When I mount the drive on my MBP, it won't accept the password.
Any ideas of what the issue might be?
Thanks.

Output of MBA.
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            120.5 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk1
   1:                        EFI                         209.7 MB   disk1s1
   2:                  Apple_HFS MacAir Time Machine     120.7 GB   disk1s2
   3:                  Apple_HFS EMC MacAir SuperDuper   80.4 GB    disk1s3
   4:          Apple_CoreStorage                         19.0 GB    disk1s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk1s5
   6:                  Apple_HFS NewMacAir               29.4 GB    disk1s6
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Test Partition         *18.7 GB    disk2
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 437078AB-823F-4380-8A85-2BEAF6FCF376
    =========================================================
    Name:         Test Partition
    Size:         19026534400 B (19.0 GB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume 3F050C46-8D59-4CFD-A8D2-98B49F080F1A
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk1s4
    |   Status:   Online
    |   Size:     19026534400 B (19.0 GB)
    |
    +-> Logical Volume Family B8003C1B-354A-4C61-B098-F1DEA1156666
        Encryption Status:       Unlocked
        Encryption Type:         AES-XTS
        Conversion Status:       Complete
        Conversion Direction:    -none-
        Has Encrypted Extents:   Yes
        Fully Secure:            Yes
        Passphrase Required:     Yes
        |
        +-> Logical Volume 53F6A26F-E202-4A9E-B17D-1B6509BE6708
            Disk:               disk2
            Status:             Online
            Size (Total):       18707759104 B (18.7 GB)
            Size (Converted):   -none-
            Revertible:         No
            LV Name:            Test Partition
            Volume Name:        Test Partition
            Content Hint:       Apple_HFS

Encrypted USB Flash Drive with Lion OS X questions

Like many of us, we don't want our USB flash drives lost with our valuable data on them. So I've used the encryption function in Lion OS X in Disk Utility to make an encrypted flash drive. This has some limitations as I read but what I want to know is can I use this usb drive on a DIFFERENT computer that also has OS X Lion? I don't have another mac w/ lion to test it on.
This is important to me because I've got a laptop and God forbid, but if it was stolen or destroyed, will I be able to access my USB drive with important data on it by plugging it into another mac computer w/ lion?
Also, as a follow up question - I haven't yet made an encrypted DMG file (tho I plan to soon) and place that on a usb drive for multiple platform use, but how functional is this? Can you add and copy files within the DMG file? I thought a dmg file, once created, couldn't change in size, MB's, etc.
Basically, I'd like to use the most user friendly type of way of securing my files and data on USB flash drives. I have tried TrueCrypt and have it installed but I just don't prefer using it. I like the simplicity of the former approach, though it has it's limitations.

NightBird wrote:
This is important to me because I've got a laptop and God forbid, but if it was stolen or destroyed, will I be able to access my USB drive with important data on it by plugging it into another mac computer w/ lion?
How about any computer instead?
Hardware based encryption is superior to software encryption which can be hacked or not available if your needs change.
This will work with any computer, and has a nice keychain so you can attach to something like your wrist or retractable key cable.
http://www.amazon.com/IronKey-Secure-Hardware-Encrypted-Flash-D20402A/dp/B000RXY V5U
There are also hardware based encypted external hard drives with their own keys and password keypads, also work with any computer if your needs are larger then a USB can handle.

[SOLVED] Encrypted root on USB drive problem

Hi,
I have encrypted root on external USB harddrive. On one machine it works just fine, LUKS ask for password and system starts.
On second it does not work. I tryed nearly all possible combinations of modules and hooks. I can also access my usb drive if I use break=y. I am using current kernel & utils, I definitely use right paths...
Machine is an Dell with Intel chipset. My USB drive is like this:
/dev/sdb1 - big fat32
/dev/sdb2 - ext2 boot with Grub, kernel and initrd image
/dev/sdb3 - root fs, reiserfs encrypted with LUKS
I made little debuging and it seems that encrypt hook was launched, but did not make anything. Before I digg deeper I wonder that someone had same problem, or can give me advice.
Kernel panic screenshot:
PS: how can I put busybox to initrd image? echo * sucks.
Thanks
Last edited by Trained.Monkey (2007-10-10 09:42:13)

I solved, problem is that encrypt is running BEFORE usb drive is fully initialized. Encrypted partition is not found and not used.
Solotion:
put sleep 5 at beggining of encrypt hook. You must also add sleep binary at installer.

Backing up to encrypted disk image on an external usb drive

I'd like to use an encrypted disk image on an external USB drive as the target for my Time Machine backups, but it seems that Time Machine will only recognize physical external drives, and not mounted disk images in the "Change Disk..." window.
Is it possible to make Time Machine use disk images mounted from an external USB drive?
Thanks.

..."Is it possible to make Time Machine use disk images mounted from an external USB drive?"...
Actually, with a few caveats, it is possible.
Just follow one of the many tutorials on the web for creating an encrypted sparse bundle for use with "TimeMachine" on a network volume (i.e. MACaddress.sparsebundle naming convention, password stored to the system keychain, etc.), and then attach the drive locally and select the drive (not the mounted disk image) as the backup drive. As "Glen Carter" reported in another thread on this site, "TimeMachine" is smart enough to know to mount the disk image for backups when the drive is connected locally.
There are caveats for example, - while backups remain automatic, it appears that actually browsing the backups requires that the disk image be mounted manually first, then accessed via the "Browse Other Time Machine Disks…" option.
One caveat to pay particular attention to is what happens when the drive starts to fill up and space becomes limiting - the processes of deleting expired backups and sparse image compaction may not be well integrated, as discussed here:
http://www.flokru.org/2008/03/15/time-machine-backups-on-network-shares-2-possib le-problems/
The article implies that the end result could be deletion of all backups! The article is dated March 2008 but I have no idea whether the issue has been resolved.
Just be advised that it is an unsupported configuration so the extra security will come at the cost of some convenience and potential increase in the chance of data loss. Most users recommend using supplemental backup strategies since the intended purpose of TimeMachine is actually very limited and often misunderstood. Apart from that, it is a rule written in stone that whenever encryption is used, the encrypted items themselves must be backed up.

USB drive encryption in MBAM

Hello ALl,
Does MBAM 2.0 has the capability to encrypt the USB drives (USB sticks). If yes can it be configured via Group Policy?
Thanks HA

USB keys must still be encrypted with traditional Bitlocker options (Windows 7 tools). MBAM client does not control USB drivers encryption process, but it will escrow the recovery key to DB fine. This is one of the missing parts in MBAM 2.5 and older versions.
I wrote even a feedback to MS about this at some time :)

Is there a REAL method to create the initial data replica TO A USB DRIVE for DPM 2012?

I've got several remote office locations with file servers containing a good amount of data, but they have very poor (3Mbps) WAN connections.
I've been tasked to set up DPM to back up these locations. Due to the size of the data and the lack of bandwidth, I'm going to need to get the techs out there
to copy the data portions of the servers onto USB drives and send them to me so I can import them into the DPM storage here.
But I’m having some problems finding the document that instructs a tech
how to copy the initial data replica to a USB drive, then docs on how I can import this data.
I have found this:
http://technet.microsoft.com/en-us/library/jj642916.aspxbut
it talks about server-to-server copying, which previously mentioned is not something we can
not do due to bandwidth issues. We need to copy to USB drive, then ship the drive to me for import into DPM.
There’s some mention of doing this to tape (then importing to DPM) as well, but I can’t find more details either… it’s sort of weird, like the documentation or help
files on TechNet are incomplete. Like take a look at this link http://technet.microsoft.com/en-us/library/hh757818.aspx-- it’s
pretty useless!
Has anyone done this yet? Can anyone please point me in the right direction?

YES - we do this all the time. In fact we never do the initial replica creation over the WAN.
Let's say you want to protect the entire D: drive of your server. Attach the USB drive to the server and use robocopy to copy everything to the USB drive. Something like (assuming the USB drive is E:) --
robocopy D:\ E:\ /b /e /r:0
You don't have to worry about copying permissions and all that stuff to the USB drive. DPM will take care of that during the initial consistency check and will make sure the DPM replica is an exact copy. (If you DO want to make sure the USB copy has
the same permissions, add the /copyall switch to the robocopy command.)
On the DPM server, set up protection for that server's D: drive and make sure you choose the option to do the initial replica creation MANUALLY. Once protection has been set up, you basically use robocopy again to transfer data from the USB drive to
the replica path on the DPM server.
You can find the replica path on the DPM server by going to the "Protection" area of the console and selecting the protected member of your file server (like the D: drive in the above example). In the bottom pane there will be a "Replica Path" line
with a hyperlink that says "Click to view details". Click that and a dialog will open. You can copy the path to the clipboard. The path will be something like this:
C:\Program Files\Microsoft DPM\DPM\Volumes\Replica\File System\vol_7a200c36-19b0-4f92-b05b-16458180f0fa\f1295bef-8329-46a4-9761-85e82017603d\Full
Just use a similar robocopy command to copy everything to the replica path. Make sure you put quotes around the replica path destination since there are spaces in it. Once robocopy is complete, you initiate a consistency check in the DPM console.
That's all there is to it...

Arch corrupts FS on external USB drive.

Good day almighty All,
I have a Dell Latitude E6520 laptop with SSD drive, which is probably unrelated to the problem.
Recently I decided to install Arch linux on it, but before that, being a bloody smart person, I decided to back up existing windows partition and CentOS filesystem to the external HDD connected with some noname SATA-to-USB connector.
(Actually it has a name, which is "Bus 002 Device 009: ID 14cd:6116 Super Top M6116 SATA Bridge").
Enclose has my old 500GB Segate in it with LVM partition.
So the box was booted with CentOS installed, first 2048 sectors of the drive and windows partitions were dumped with dd to the files on external HDD.
Could not tell which FS was on the volume, but most probably ext3.
After that I installed Arch (base, base-devel, grub as per installation manual), changed CentOS GRUB-0.9 to GRUB2, rebooted into arch, was unpleasantly surprised by the missing ifconfig, rebooted back into Arch usb, installed net-tools, rebooted into Arch, installed various small things like vim and KDE minimal, added missing ttf-dejavu, still could not boot into KDM - startx only.
Everything was going well so far.
Then it happened.
I mounted my USB drive from Arch and tried to dump on it CentOS partition.
Somewhere at the mark of 30-40Gb from the start I got Input/Output errors and that's it - partition is dead.
When I tried to remount it I've got:
mount: wrong fs type, bad option, bad superblock on /dev/mapper/lenovo01-data,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
I ran fsck on other laptop (Fedora 17) and got file system fixed but empty (well, lots of errors, everything was linked under lost+found).
RIP my backup (I have a copy on the storage and this one will be accessed via network only
I re-created FS (ext3), copied on it couple gigs of test files, connected drive to dell, mounted FS, "ls" the dir, all good.
Unmounted FS, mounted again - get what is quoted above - I/O errors.
The same drive on the same laptop works without any problem with installed CentOS and live GRML so it is not a hardware itself.
So far:
1. external drive can be mounted without problem when it is just connected to Arch
2. After some data traffic it starts to produce I/O errors.
3. When good FS is unmounted and then mounted again the story is the same - I/O errors.
4. As soon as it happened I cannot change FS on drive, I cannot change partition table and so on. fdisk and mkfs completed without error but FS is not there and attempt to mount produces the error above.
Below is some info about installation:
System is installed on encrypted with Luks LVM partition.
External HDD is not encrypted.
[root@darkstar ~]# uname -a
Linux darkstar 3.6.3-1-ARCH #1 SMP PREEMPT Mon Oct 22 10:23:56 CEST 2012 x86_64 GNU/Linux
[root@darkstar ~]# pacman -Suy
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
:: Starting full system upgrade...
there is nothing to do
[root@darkstar ~]#
# dmesg after connection of USB drive
[Nov 2 14:08] usb 2-1.1: new high-speed USB device number 8 using ehci_hcd
[ +0.085473] scsi8 : usb-storage 2-1.1:1.0
[ +1.002053] scsi 8:0:0:0: Direct-Access Mass Storage Device PQ: 0 ANSI: 0
[ +0.001279] sd 8:0:0:0: [sdb] 976773166 512-byte logical blocks: (500 GB/465 GiB)
[ +0.000664] sd 8:0:0:0: [sdb] Write Protect is off
[ +0.000011] sd 8:0:0:0: [sdb] Mode Sense: 03 00 00 00
[ +0.000562] sd 8:0:0:0: [sdb] No Caching mode page present
[ +0.000011] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ +0.002354] sd 8:0:0:0: [sdb] No Caching mode page present
[ +0.000011] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ +0.049185] sdb: sdb1 sdb2 sdb3
[ +0.003149] sd 8:0:0:0: [sdb] No Caching mode page present
[ +0.000022] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ +0.000006] sd 8:0:0:0: [sdb] Attached SCSI disk
[Nov 2 14:09] usb 2-1.1: reset high-speed USB device number 8 using ehci_hcd
And this is dmesg after I tried to mount fs created on other box.
There was also XFS volume on the same VG.
[Nov 2 14:15] EXT4-fs (dm-8): mounted filesystem without journal. Opts: (null)
[Nov 2 14:16] EXT4-fs (dm-8): VFS: Can't find ext4 filesystem
[ +0.036964] EXT4-fs (dm-8): VFS: Can't find ext4 filesystem
[ +0.026500] EXT4-fs (dm-8): VFS: Can't find ext4 filesystem
[ +0.040551] XFS (dm-8): bad magic number
[ +0.000023] XFS (dm-8): SB validate failed
Will appreciate any help,
Thanks,
Eugene.

Little bit of testing, just out of curiousity - do not have time to dig into it, sorry.
It puts garbage starting with "USBC" in first 32 bytes (the rest of the string varies) and then skips first 4K.
Tested it with CentOS - at least its 2.6 kernel works as expected.
[root@darkstar test]# uname -a
Linux darkstar 2.6.32-279.11.1.el6.x86_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@darkstar test]# perl -e 'print "a"x5120' |dd bs=512 count=10 of=/dev/sdb
10+0 records in
10+0 records out
5120 bytes (5.1 kB) copied, 0.258486 s, 19.8 kB/s
[root@darkstar test]# dd bs=512 count=10 if=/dev/sdb status=noxfer |od -tax1
0000000 a a a a a a a a a a a a a a a a
61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
0012000
10+0 records in
10+0 records out
[root@darkstar test]# uname -a
Linux darkstar 2.6.32-279.11.1.el6.x86_64 #1 SMP Tue Oct 16 15:57:10 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@darkstar test]# uname -a
Linux darkstar 3.6.7-1.el6.elrepo.x86_64 #1 SMP Sun Nov 18 08:35:06 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@darkstar test]# perl -e 'print "7"x5120' |dd bs=512 count=10 of=/dev/sdb
10+0 records in
10+0 records out
5120 bytes (5.1 kB) copied, 0.303432 s, 16.9 kB/s
[root@darkstar test]# dd bs=512 count=10 if=/dev/sdb status=noxfer |od -tax1
10+0 records in
10+0 records out
0000000 U S B C : soh nul nul nul dc4 nul nul nul nul nl *
55 53 42 43 ba 01 00 00 00 14 00 00 00 00 0a 2a
0000020 nul nul nul nul nul nul nul nl nul nul nul nul nul nul nul ^
00 00 00 00 00 00 00 0a 00 00 00 00 00 00 00 de
0000040 a a a a a a a a a a a a a a a a
61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
0001000 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
37 37 37 37 37 37 37 37 37 37 37 37 37 37 37 37
0012000
[root@darkstar test]# uname -a
Linux darkstar 3.6.7-1.el6.elrepo.x86_64 #1 SMP Sun Nov 18 08:35:06 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@darkstar test]#
Last edited by Eugene (2012-11-26 01:15:46)

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