USB mass storage device not getting drive letter
in [Hardware]
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From: Scott Alfter on 7 Mar 2005 00:17 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 In article <0L6dnYG5ELTYrLbfRVn-qQ(a)rogers.com>, Yousuf Khan <bbbl67(a)ezrs.com> wrote: >Alan Walpool wrote: >> Try using diskpart from the commandline to assign a drive. Hope this >> works it has worked for me when I needed to make a drive showup. Could >> be something else. > >Didn't work. > >I heard somewhere that the USB mass storage driver doesn't seem to work >in a system with more than one hard drive (which is the case for all of >my desktops)? With three hard drives installed in my home desktop, it'd be a bummer if my USB hard drive didn't also work with it. :-) I'm assuming that the drive is already partitioned and formatted. When you plug it into your desktop and bring up the Disk Management plugin, is it not showing up at all? The drive and its partitions should show up there, whether one or more drive letters are allocated to the drive or not. I've had parts of flash-card readers not get drive letters when they're plugged in because they were already taken by network shares or other drives; going into Disk Management and reassigning drive letters has always cleared up the problem for me. _/_ / v \ Scott Alfter (remove the obvious to send mail) (IIGS( http://alfter.us/ Top-posting! \_^_/ rm -rf /bin/laden >What's the most annoying thing on Usenet? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Linux) iD8DBQFCK+QCVgTKos01OwkRAj8xAKCqGWvZQXf3bZFrDAj54MGt1WF1yACg67Zg iwQJfGLzdvmFX0ZM0jKQu5c= =TmWr -----END PGP SIGNATURE-----
From: Franc Zabkar on 7 Mar 2005 01:54 On 5 Mar 2005 15:09:33 -0800, yjkhan(a)gmail.com (ykhan) put finger to keyboard and composed: >I got an external USB hard disk enclosure. It works fine on my laptop, >it gets detected, drivers get loaded, and everything shows up fine in >Device Manager, and a drive letter is assigned to it. When I put the >same device onto my desktop, almost everything happens the same, >except it doesn't get a drive letter assigned to it. I don't see it in >Disk Manager. Is a USB pen/thumb/flash drive assigned a drive letter? - Franc Zabkar -- Please remove one 's' from my address when replying by email.
From: cquirke (MVP Windows shell/user) on 7 Mar 2005 05:44 On Sun, 06 Mar 2005 18:51:05 -0500, Yousuf Khan <bbbl67(a)ezrs.com> >Bob Niland wrote: >> Does XP support environment variable LASTDRIVE ? >No, I haven't seen the lastdrive used since the DOS days One of the things that can hide a drive letter in XP, is a network share with the same drive letter. This applies both to USB sticks and to hard drive volumes. Suspect this if Drive Manager shows the device (drive, volume) but you don't see it in Windows Explorer. Use Drive Manager to set a different drive letter so that it escapes the shadow of the LAN share. >---------------- ----- ---- --- -- - - - - Cats have 9 lives, which makes them ideal for experimentation! >---------------- ----- ---- --- -- - - - -
From: George Macdonald on 7 Mar 2005 06:00 On Sun, 6 Mar 2005 12:19:11 +0000, GSV Three Minds in a Can <GSV(a)quik.clara.co.uk> wrote: >Bitstring <vfdl21dblivmild0kmqitqedfrpcjpnv9n(a)4ax.com>, from the >wonderful person George Macdonald <fammacd=!SPAM^nothanks(a)tellurian.com> >said >>On 5 Mar 2005 15:09:33 -0800, yjkhan(a)gmail.com (ykhan) wrote: >> >>>I got an external USB hard disk enclosure. It works fine on my laptop, >>>it gets detected, drivers get loaded, and everything shows up fine in >>>Device Manager, and a drive letter is assigned to it. When I put the >>>same device onto my desktop, almost everything happens the same, >>>except it doesn't get a drive letter assigned to it. I don't see it in >>>Disk Manager. >>> >>>All computers are running XP SP2. I've tried it in a second desktop PC >>>with XP SP2 as well, and exact same thing happens -- no drive letter, >>>no recognition from Disk Manager, but Device Manager sees it fine >>>doesn't find any problems with it. >> >>Do you have partitions and/or network drives on your desktop? I've had >>trouble with "collisions" between drive letters and I'm still not sure of >>the rules - sometimes it seems that a drive letter "sticks" with removable >>drives across systems. In Device Manager for the drive, from the Volumes >>Tab click on Populate and see what drive letters it wants to use and a >>possible collision, then go to Disk Management and fiddle with the drive >>letters. > >They shouldn't stick across systems, but they will definitely stick >across time - i.e. if a WinXP system has ever seen a formatted drive it >will have the (last) drive letter stored in the registry, which can >cause all sorts of confusion later. Usually it seems to work out OK, but >sometimes .. In a perfect world, GUIDs (Globally Unique IDs) *really* are unique.:-) I've seen some oddball behavior which I cannot explain. -- Rgds, George Macdonald
From: YKhan on 7 Mar 2005 13:55
cquirke (MVP Windows shell/user) wrote: > Suspect this if Drive Manager shows the device (drive, volume) but you > don't see it in Windows Explorer. Use Drive Manager to set a > different drive letter so that it escapes the shadow of the LAN share. No, "Drive" Manager (actually is "Disk" Manager, but I know what you meant) is not showing it at all as a volume. If it showed up in Disk Manager, I would've known what to do with it then. Strangely enough, now this drive is not showing up on its original home either, where it was working previously. I'm going to have see what else is going on here, maybe something got shaken loose while I was transporting it? Yousuf Khan |