/dev/sda missing?

martinus · n00b Joined: 13 Jul 2002 Posts: 50

Hi everyone, I want to access my USB Stick, but no matter what I do I do not have any /dev/sda device. I followed this tutorial: https://forums.gentoo.org/viewtopic.php?t=53537
When I connect the USB Stick, I get this messages in dmesg:

squeegy · Posted: Mon Jun 28, 2004 10:20 pm Post subject:

Did you compile all the portions of your kernel mentioned in the HOWTO thread as modules? If so please post the output of 'lsmod'

martinus · n00b Joined: 13 Jul 2002 Posts: 50

no, I have compiled everything into the kernel

Jake · Veteran Joined: 31 Jul 2003 Posts: 1132

You could just make sda and see if it works.

martinus · n00b Joined: 13 Jul 2002 Posts: 50

jbc28 · Posted: Tue Jun 29, 2004 11:03 pm Post subject:

perhaps its not being mounted as /dev/sda1 but /dev/sdb1?

It's worth checking the output of dmesg when you plug in the usb key. If it seems happy and talks about setting up devices you can mount
/dev/scsi/host_/bus_/target_/lun_/part_
where _ represent the parameters dmesg gives.

If neither of these options help, my guess is that you're lacking relevant kernel options though from what you've said that looks unlikely.

I've assumed your using devfs, if you're using udev I'm afraid I can't help.
J

TrJ · n00b Joined: 22 Jul 2003 Posts: 31

did you install hotplug?
if not: please do

jbc28 · Posted: Tue Jun 29, 2004 11:48 pm Post subject:

If you're not using modules hotplug won't really do anything useful as far as I understand.
J

TrJ · n00b Joined: 22 Jul 2003 Posts: 31

Rainmaker · Posted: Wed Jun 30, 2004 7:27 am Post subject:

usually it is /dev/sda1

Try:

fdisk -l /dev/sda

That should give you a list of partitions

Then mount with

mount -t vfat /dev/sda1 /mnt/myusbstickrocks/

PS. Hitplug is needed. Just do an rc-update to add hotplug to system boot, do an /etc/init.d/hotplug start for now.
_________________
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jbc28 · Posted: Wed Jun 30, 2004 2:24 pm Post subject:

I'm pretty sure that all hotplug does, after a quick read through of the scripts, is to insert modules when they're needed. It gets replaced by the kernel's ability to autoload modules in 2.6.x and won't help if your devices are all compiled into the kernel. Creating device links is done by devfsd so for a non-modular kernel hotplug is (as far as I can see) pointless.
J

DrKayBee · Posted: Wed Jun 30, 2004 2:29 pm Post subject:

I think it may be a case of a misconfigured kernel as well.
When you plug in a stick, check your dmesg output. Also look at lsusb to see if your hardware is working properly.

Cheers,
KB