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disperato
Tux's lil' helper
Joined: 27 Apr 2004
Posts: 120
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 Posted: Sat Dec 24, 2005 9:27 am Post subject: /dev/sda not created |
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I really can't figureout why this damn /dev/sda is not created when I insert my usb pendrive:
When I plug the usb pendrive in:
| Quote: | cat /proc/partitions
major minor #blocks name
3 0 58605120 hda
3 1 31455238 hda1
3 2 1 hda2
3 5 6265318 hda5
3 6 6474163 hda6
3 7 257008 hda7
3 8 1180746 hda8
3 9 9140953 hda9
3 10 3831471 hda10
8 0 253952 sda
8 1 253936 sda1 |
| Quote: | udevmonitor prints the received event from the kernel [UEVENT]
and the event which udev sends out after rule processing [UDEV]
UEVENT[1135416341.409724] add@/devices/pci0000:00/0000:00:10.3/usb1/1-4
UEVENT[1135416341.410690]
add@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4:1.0
UEVENT[1135416341.686746] add@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1
UEVENT[1135416341.687493]
add@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1/1-4.1:1.0
UEVENT[1135416341.687877] add@/class/scsi_host/host2
UEVENT[1135416346.689100]
add@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1/1-4.1:1.0/host2/target2:0:0/
2:0:0:0 |
| Quote: | | ls: /dev/sd*: No such file or directory |
| Quote: | | ls: /dev/sg*: No such file or directory |
| Quote: | | ls: /dev/sg: No such file or directory |
| Quote: | | ls: /dev/us*: No such file or directory |
| Quote: |
dmesg | grep -i usb:
usb 1-4: new high speed USB device using ehci_hcd and address 5
hub 1-4:1.0: USB hub found
hub 1-4:1.0: 1 port detected
usb 1-4.1: new high speed USB device using ehci_hcd and address 6
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
Vendor: LG Model: USB Drive 2.0 Rev: 1.00
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 507904 512-byte hdwr sectors (260 MB)
sda: Write Protect is off
sda: Mode Sense: 00 26 00 00
sda: assuming drive cache: write through
SCSI device sda: 507904 512-byte hdwr sectors (260 MB)
sda: Write Protect is off
sda: Mode Sense: 00 26 00 00
sda: assuming drive cache: write through
sda: sda1
Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi1, channel 0, id 0, lun 0, type 0
usb-storage: device scan complete
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If unplugged:
| Quote: | cat /proc/partitions
major minor #blocks name
3 0 58605120 hda
3 1 31455238 hda1
3 2 1 hda2
3 5 6265318 hda5
3 6 6474163 hda6
3 7 257008 hda7
3 8 1180746 hda8
3 9 9140953 hda9
3 10 3831471 hda10 |
| Quote: | udevmonitor prints the received event from the kernel [UEVENT]
and the event which udev sends out after rule processing [UDEV]
UEVENT[1135416257.149412] remove@/class/scsi_device/1:0:0:0
UEVENT[1135416257.149453] remove@/block/sda/sda1
UEVENT[1135416257.149461] remove@/block/s
da
UEVENT[1135416257.149467]
remove@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1/1-4.1:1.0/host1/target1:0
:0/1:0:0:0
UEVENT[1135416257.149474] remove@/class/scsi_host/host1
UEVENT[1135416257.149481]
remove@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1/1-4.1:1.0
UEVENT[1135416257.150121]
remove@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4.1
UEVENT[1135416257.151001]
remove@/devices/pci0000:00/0000:00:10.3/usb1/1-4/1-4:1.0
UEVENT[1135416257.151216] remove@/devices/pci0000:00/0000:00:10.3/usb1/1-4 |
Significant options which are turned on into the kernel (modules I've choosen to built-in):
| Quote: | grep -i usb /usr/src/linux/.config | grep -v \#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_DPCM=y
CONFIG_USB_STORAGE_USBAT=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y
CONFIG_USB_MON=y
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_PL2303=y
CONFIG_USB_SERIAL_HP4X=y
CONFIG_USB_LCD=m
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| Quote: | # SCSI device support
#
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
#
# SCSI low-level drivers
#
CONFIG_SCSI_QLA2XXX=y
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| Quote: | # Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_MSDOS_PARTITION=y
CONFIG_LDM_PARTITION=y
CONFIG_LDM_DEBUG=y
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hotplug and coldplug installed and started on boot
Why, why the device /dev/sda is not created when I plug in the usb pendrive?
forgive me for this new post on the same issue already shown in
https://forums.gentoo.org/viewtopic-t-415812-highlight-dev+sda.html
Here I've bette focused the problem. Hope this help us to fix it  |
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JloR
n00b
Joined: 29 Jun 2004
Posts: 43
Location: Denmark
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| Posted: Sat Dec 24, 2005 12:49 pm Post subject: |
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What about lsmod? Did you load the USB modules?
_________________
-- Jakob L. O. Rosenlund |
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disperato
Tux's lil' helper
Joined: 27 Apr 2004
Posts: 120
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| Posted: Sat Dec 24, 2005 1:55 pm Post subject: |
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| JloR wrote: | | What about lsmod? Did you load the USB modules? |
thank for the answer (*)
In my case lsmod doesn't say nothing about USB modules, because I've choosen to compile them inside the kernel, not loadable with modprobe.
The problem looks related to MAKEDEV or permissions or...? I don't know...
Right a few minutes ago I've found a solution, but it's a very dirty trick 
I'v added the following line at the bottom of /etc/conf.d/local.start:
cd /dev && MAKEDEV sda
and it works either with the usb pendrive plugged or not on boot.
It's not so critical, but I still wonder why this strange, sudden behaviour from hotplug & co.
thanx
(*) always thanx for any answer but in this case especially, 'cause I realized that "damn" could cause offense in some culture.If so, I did'nt do it intentionally and apologize. |
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