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golding
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Joined: 07 Jun 2005
Posts: 232
Location: Adelaide / South Australia
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 Posted: Thu Dec 15, 2005 5:37 am Post subject: sg*, scanner and other nodes missing in /dev [SOLVED] |
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Found a problem with my usb printer, udev was not creating the /dev/usb/lp0 node.
After much searching of forums about it, decided to upgrade udev (077-r5) and baselayout (1.12) and problem fixed nicely.
Now other nodes are missing. My /dev has all the hd*/ sd* devs, has made all the sound, input and other devs, plenty of tty* but scanner, sg* have gone walkabout.
dmesg shows the scsi card being found and the scanner being correctly identified, but doesn't follow up with any node creation, as follows
| Code: | scsi4 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
<Adaptec 2940A Ultra SCSI adapter>
aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs
Vendor: HP Model: C5110A Rev: 3701
Type: Processor ANSI SCSI revision: 02
target4:0:2: Beginning Domain Validation
target4:0:2: Ending Domain Validation |
Anybody able to explain to me what this 'target' and 'domain' is talking about?
Or how it applies to getting xsane to work?
_________________
Regards, Robert
..... Some people can tell what time it is by looking at the sun, but I have never been able to make out the numbers.
Last edited by golding on Fri Dec 16, 2005 12:31 am; edited 1 time in total |
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golding
Apprentice
Joined: 07 Jun 2005
Posts: 232
Location: Adelaide / South Australia
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| Posted: Thu Dec 15, 2005 3:32 pm Post subject: |
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OK, fixed scanner problem, but now all other automounting will not work.
I think I will set it up for manual mounting like the old days, at least you knew where you were 
Perhaps, one day, when the automounting/hal/dbus system is fixed and totally stable I might try it again.
I know the problem has nothing to do with udev, it is working well now I have gone pure udev. hal and dbus seem to continuously want to upgrade, then downgrade with each -u world.
_________________
Regards, Robert
..... Some people can tell what time it is by looking at the sun, but I have never been able to make out the numbers. |
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golding
Apprentice
Joined: 07 Jun 2005
Posts: 232
Location: Adelaide / South Australia
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| Posted: Fri Dec 16, 2005 12:30 am Post subject: |
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Not sure what is going on, but I have managed to get everything working. Have re-booted the machine a few times to make sure it is working properly.
1) Converted to pure Udev system, but after populating /dev with some extra links, have changed /etc/conf.d/rc
| Code: | RC_DEVICES="udev"
RC_DEVICE_TARBALL="yes" |
so that it will remember my additional links.
(Q) Wasn't there some way to maintain persistant links via /dev/devices? My memory is a little fuzzy on this
2) The scsi card (where my scanner is attached) was being found but no sg* device was being created in /dev for the scanner. I found there were two ways to repair this, one being via modprobe and the other by putting the driver directly into the kernel. I was not able to figure out how to make sure modprobe would definitely create /dev/sg* so went with internal kernel driver. I made all of the scsi section (Y) instead of (M) for my requirements
| Code: | #
# SCSI device support
#
CONFIG_SCSI=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
CONFIG_SCSI_MULTI_LUN=y
#
# SCSI Transport Attributes
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
#
# SCSI low-level drivers
#
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
# CONFIG_SCSI_AIC7XXX_OLD is not set
CONFIG_SCSI_SATA=y
CONFIG_SCSI_SATA_NV=y
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I then added a rule for udev (10-local.rules)
| Code: | | BUS="scsi", SYSFS{model}="C5110A ", KERNEL="sg*", NAME="%k", SYMLINK="scanner", GROUP="scanner" |
for my scanner, however all my usb storage was already being found, including my internal card reader, they now have sg* as well as sd* nodes. I have added rules for each slot type.
3) My radio wasn't working as udev kept making the node /dev/radio0, and even though I created a rule to SYMLINK="radio" in local rules, the link was not created and the radio software couldn't find the device. I created a link to /dev/radio0
| Code: | | ln -s /dev/radio0 /dev/radio |
which cured this quite nicely.
4) Every time I did an 'emerge -avuD world', hal and dbus would be either downgraded or upgraded. When they were downgraded all my automounting systems would go walkabout, but when they were upgraded (~x86 keyword) everything would work. I added them to package.keywords
| Code: | >=sys-apps/hal-0.5.0 ~x86
>=sys-apps/dbus-1.50 ~x86 |
This also cured the problem I was having with my usb printer regarding /dev/usb/lp0. I have since aquired an HP jetdirect and this no longer applies anyway.
5) I have stopped any use of fstab-sys and am using pmount as standard. I have added devices as required to /etc/pmount.allow
| Code: | # /etc/pmount.allow
# pmount will allow users to additionally mount all devices that are
# listed here.
/dev/cf_card
/dev/sd_card
/dev/mmc_card
/dev/usb_64
/dev/usb_512
/dev/usb_1g |
though I think they are only required for user access.
I hope this ramble helps someone.
_________________
Regards, Robert
..... Some people can tell what time it is by looking at the sun, but I have never been able to make out the numbers. |
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