| Stephen Gran on 6 Apr 2005 17:03:32 -0000 |
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On Wed, Apr 06, 2005 at 12:05:01PM -0400, Jeff Abrahamson said: > The device /dev/sda1 has disappeared since my last reboot: > > jeff@asterix:incoming $ mount -v /cflash > mount: special device /dev/sda1 does not exist > jeff@asterix:incoming $ grep cflash /etc/fstab > ##/dev/sda1 /cflash auto defaults,user,noauto 0 0 > /dev/sda1 /cflash vfat defaults,user,noauto 0 0 > /dev/sda1 /cflash-ro vfat defaults,ro,user,noauto 0 0 > jeff@asterix:incoming $ > > The only difference I'm aware of since the last reboot is that I took > ide-scsi out of /etc/modules, since that was a 2.4-ism. That change > caused my cdrw to start working again, at least. > > jeff@asterix:jeff $ egrep 'usb|scsi|hcd' /proc/modules > uhci_hcd 33136 0 - Live 0xf8996000 > ohci_hcd 21764 0 - Live 0xf8881000 > ehci_hcd 32004 0 - Live 0xf888e000 > usb_storage 69056 0 - Live 0xf89ad000 > hpusbscsi 7808 0 - Live 0xf8825000 > scsi_mod 125228 3 sd_mod,usb_storage,hpusbscsi, Live 0xf88b4000 > usbcore 119012 7 uhci_hcd,ohci_hcd,ehci_hcd,usb_storage,hpusbscsi, Live 0xf8977000 > ide_core 139940 5 ide_cd,usb_storage,ide_generic,piix,ide_disk, Live 0xf885d000 > jeff@asterix:jeff $ > > The output of dmesg suggests the device ought to exist. Here's the > relevant fragment: > > usb 1-1: new full speed USB device using address 2 > scsi0 : SCSI emulation for USB Mass Storage devices > Vendor: SanDisk Model: ImageMate CF-SM Rev: 0100 > Type: Direct-Access ANSI SCSI revision: 02 > Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 > Vendor: SanDisk Model: ImageMate CF-SM Rev: 0100 > Type: Direct-Access ANSI SCSI revision: 02 > Attached scsi removable disk sdb at scsi0, channel 0, id 0, lun 1 > USB Mass Storage device found at 2 > > This suggests I should use /dev/sda instead of /dev/sda1, but that > causes the usual problem. Changing /etc/fstab and trying again, I see > this: Right - you always (AFAIK) need to mount a partition, not a disk itself. > jeff@asterix:incoming $ mount /cflash > mount: wrong fs type, bad option, bad superblock on /dev/sda, > or too many mounted file systems > jeff@asterix:incoming $ > > Changing fstab back again, it suddenly works. The file /dev/sda1, > which hadn't existed ten minutes ago, exists now. > > At least it works now, but this is is weird. Any thoughts? Is udev installed? That or hotplug does strange things to removable devices. That is where I would start your investigation - syslog snippets might also be helpful in debugging. -- -------------------------------------------------------------------------- | Stephen Gran | <Knghtbrd> Feanor - license issues are | | steve@lobefin.net | important. If we don't watch our | | http://www.lobefin.net/~steve | arses now, someone's gonna come up and | | | bite us later... | -------------------------------------------------------------------------- Attachment:
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