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Mac Forum / General / Portable Macs / September 2004problems connecting external drive with Powerbook
Hi, I bought an external hard drive enclosure with 250GB to use with my 12" powerbook. My case has both Firewire and USB2 connections. When I first bought it, I would just plug it into my Powerbook (Firewire OR USB), and it would connect without problems. But lately, I have had problems connecting. I would plug it in and nothing would happen. Sometimes the icon would show up after waiting a few minutes, sometimes it would not even connect. Sometimes I would unplug and plug it back a few times for it to work. Sometimes I would have to 'reboot' the external drive. This seems to happen with both the Firewire and USB cable. Has anyone out there has any intermitent connection problems with external drives like me? If so what is the cause? Is it because I bought a cheapo case? Any solutions? Thanks, JS. > Hi, > [quoted text clipped - 19 lines] > > JS. Two of us purchased Clearlight cases and Hitachi 2 1/2' drives. Mine CL/H works via USB but not FW, on my TiPB. The other CL/H works by FW but not USB on a new 1.4MHzPB. The explanation was that it was a bus issue; get an external power supply for the external drive. So I did. No difference. An exploration in progress. Chris Brown Neurosurgery University of Adelaide >> Hi, >> [quoted text clipped - 31 lines] > Neurosurgery > University of Adelaide I just bought my third external drive and sometimes they just don't show in the desktop or finder but I can usually find them with disk utility. > I just bought my third external drive and sometimes they just don't show > in the desktop or finder but I can usually find them with disk utility. tried that; no go >> I just bought my third external drive and sometimes they just don't show >> in the desktop or finder but I can usually find them with disk utility. > > tried that; no go After that then I do the unhook, unplug, replug it in, connect and try again dance. So I'm not the only one with this problem then. My 3.5inch external runs off AC power directly (no choice at all), so that is not the issue. Although I know this might be an issue for the smaller 2.5inch enclosures. JS. >>>I just bought my third external drive and sometimes they just don't show >>>in the desktop or finder but I can usually find them with disk utility. [quoted text clipped - 3 lines] > After that then I do the unhook, unplug, replug it in, connect and try > again dance. Done all that John, it is a no play; as it is on the other machine too. > Done all that John, it is a no play; as it is on the other machine too. Is it formatted? Tried mounting it in a terminal? man mount Sorry if this is a bum steer, I don't use my iBook much and am used to Linux. >>Done all that John, it is a no play; as it is on the other machine too. > > Is it formatted? Tried mounting it in a terminal? man mount > > Sorry if this is a bum steer, I don't use my iBook much and am used to > Linux. Hi Bud, Have reformatted a couple of times (connected by USB). Have only had a few forays into terminal... AppleCentre is getting in another case to try; I think they don't really beleive me. regards Chris >>Done all that John, it is a no play; as it is on the other machine too. > > Is it formatted? Tried mounting it in a terminal? man mount > > Sorry if this is a bum steer, I don't use my iBook much and am used to > Linux. just tried in Terminal, by USB (first) and then FW. The 2 partitions 'untitled on the external Clearlight are seen via USB only. cbrown03:~ chrisbrown$ mount /dev/disk0s10 on / (local, journaled) devfs on /dev (local) fdesc on /dev (union) <volfs> on /.vol automount -nsl [409] on /Network (automounted) automount -fstab [412] on /automount/Servers (automounted) automount -static [412] on /automount/static (automounted) /dev/disk1s10 on /Volumes/Untitled 1 (local, nodev, nosuid, journaled) /dev/disk1s12 on /Volumes/Untitled 2 (local, nodev, nosuid, journaled) cbrown03:~ chrisbrown$ mount /dev/disk0s10 on / (local, journaled) devfs on /dev (local) fdesc on /dev (union) <volfs> on /.vol automount -nsl [409] on /Network (automounted) automount -fstab [412] on /automount/Servers (automounted) automount -static [412] on /automount/static (automounted) cbrown03:~ chrisbrown$ > just tried in Terminal, by USB (first) and then FW. The 2 partitions > 'untitled on the external Clearlight are seen via USB only. Do you have any other FW devices? If you do, and they don't work either, then you've got a bad FW port on your PB. If you do, and they do work, then you've got a bad FW port on your external HD. This data would be good to give to Apple - that would help convince them that you have a broken FW port. --jon >>just tried in Terminal, by USB (first) and then FW. The 2 partitions >>'untitled on the external Clearlight are seen via USB only. [quoted text clipped - 7 lines] > > --jon other FW devices work ok Chris >>>> I just bought my third external drive and sometimes they just don't show >>>> in the desktop or finder but I can usually find them with disk utility. [quoted text clipped - 5 lines] > > Done all that John, it is a no play; as it is on the other machine too. So you are saying its not intermittent but down for good? I was going to suggest a reboot to the computer but if it is happening on both computers then it sounds like either the drive or the enclosure is bad. If its just a matter of not connecting the first time every time then I would not worry. I think that is normal. If it is not connecting at all, then that is of course a problem. >>>>>I just bought my third external drive and sometimes they just don't show >>>>>in the desktop or finder but I can usually find them with disk utility. [quoted text clipped - 12 lines] > worry. I think that is normal. If it is not connecting at all, then that > is of course a problem. It does not connect at all. It is the same for 3 tested drives. I have extensively tested the matrix of alternatives; cable swaps... and mirrored the tests on the other PB's Chris |
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