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Using virtio-blk serial attributes add rules to extract drive serial numbers and
generate by-id links for the block device and partitions.
With these rules added, we now see the following symlinks in disk/by-id
% ls -al /dev/disk/by-id | grep vdb
lrwxrwxrwx. 1 root root 9 Jun 1 22:09 virtio-QM00001 -> ../../vda
lrwxrwxrwx. 1 root root 10 Jun 1 22:09 virtio-QM00001-part1 -> ../../vda1
Signed-off-by: Ryan Harper <ryanh@us.ibm.com>
Commit f61e72d89 failed to match for the case where an USB printer has multiple
interfaces, such as
ID_USB_INTERFACES=:ffffff:070102:
Thanks to Pablo Mazzini for spotting this!
virtio ports spawned by the virtio_console.c driver can have 'names'
assigned to them by hosts. The ports are distinguishable using these
names. Make a rule to create a symlink to the chardev associated for a
port with a name.
The symlink created is:
/dev/virtio-ports/org.libvirt.console0 -> /dev/vport0p0
if the first port for the first device was given a name of
'org.libvirt.console0'.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Some SCSI devices use the same WWN and have a WWN extension that we
need to take into account when creating the /dev/disk/by-id/wwn
symlinks. Thus, introduce ID_WWN_WITH_EXTENSION. This property will
contain either the WWN (if no extension is present) or the WWN with
the vendor extension appended.
Example:
# /lib/udev/ata_id/ata_id --export /dev/sda |grep WWN
ID_WWN=0x5001517387d61905
ID_WWN_WITH_EXTENSION=0x5001517387d61905
# /lib/udev/scsi_id --whitelisted --export -d /dev/sdb |grep WWN
ID_WWN=0x600508b400105df7
ID_WWN_VENDOR_EXTENSION=0x0000e00000d80000
ID_WWN_WITH_EXTENSION=0x600508b400105df70000e00000d80000
# /lib/udev/scsi_id --whitelisted --export -d /dev/sdc |grep WWN
ID_WWN=0x600508b400105df7
ID_WWN_VENDOR_EXTENSION=0x0000e00000db0000
ID_WWN_WITH_EXTENSION=0x600508b400105df70000e00000db0000
Signed-off-by: David Zeuthen <davidz@redhat.com>
The ID_CLASS property on input devices has been replaced by the more accurate
set of flags ID_INPUT_{KEYBOARD,KEYS,MOUSE,TOUCHPAD,TABLET,JOYSTICK}.
Rewrite 60-persistent-input.rules to use the new properties now and not export
ID_CLASS any more, since it is not used by anything else any more.
Add note about migration to NEWS, in case this is being used in custom rules.
input_id probes input/event devices for their class (keyboard, keys, mouse,
touchpad, tablet, joystick). This is based on the corresponding hal code in
hald/linux/device.c, input_test_{abs,rel,...}.
This should provide enough functionality to get hal-less X.org working (which
in particular needs to know exactly which devices are touchpads).
Replace the brittle hacks in 60-persistent-input.rules with checking for the
new ID_INPUT_* flags. This keeps the old ID_CLASS properties for now (but they
are to be removed later on).
Note: The current code has several hacks still, which are to be replaced with
proper libudev calls later on.
Now that both ata_id and scsi_id exports the World Wide Name in the
ID_WWN property, use this to create persistent symlinks. Example
/dev/disk/by-id/wwn-0x500000e01b83f360 -> ../../sdn
/dev/disk/by-id/wwn-0x500000e01b83f440 -> ../../sdm
Signed-off-by: David Zeuthen <davidz@redhat.com>
The kernel IDE drivers get deprecated now:
http://article.gmane.org/gmane.linux.ide/43151
Almost everybody has switched over to libata devices long ago.
Recent services do not work with the now deprecated IDE drivers
at all and require libata drivers and SCSI infrastructure.
Systems who care about the old stuff need to add the rules to the
compat rules.
This reverts commit 68bffc607f7f0414fee77fa481d9c133ce0798e9.
After discussing this with Kay we decided to drop this again as by-id
links only make sense for devices that have a unique serial id. If they
don't any attempts to make them unique have the side effect of
nourishing assumptions by users that cannot be met, as the by-id device
link of a device could differ depending on the history of simultaneously
plugged in device.
So, to make sure that all device nodes follow the same rules for by-id/
symlinks, drop this patch again.
If two USB sound cards that have the same serial number are plugged in
make sure the by-id/ device node symlink is unique at least during
runtime, by including the ALSA card id in the symlink name.
This is a followup to ed1b2d9fc7.
If two USB sound cards that have the same serial number are plugged in
make sure ID_ID is unique at least during runtime, by including the ALSA
card id in the ID_ID string.
Fixes issues like this one:
http://pulseaudio.org/ticket/661
Commit f61e72d8 made raw USB printers accessible for the lp group. However,
chmoding them to 0660 is a bit over-zealous, since by default raw USB devices
are world-readable. Not being so breaks lsusb unnecessarily. Now set
permissions to 0664.
ID_CDROM_MEDIA_SESSION_LAST_OFFSET is not set for CDs with only a single
session (i. e. for the vast majority of CDs out there). The previous rules ran
blkid with invalid arguments for these, causing CD detection to fail in
DK-disks and gvfs.
Now check whether we actually have ID_CDROM_MEDIA_SESSION_LAST_OFFSET, and if
not, call blkid without -O for specifying the offset.
Many thanks to Maxim Levitsky for tracking this down!
https://launchpad.net/bugs/431055
With well defined and kernel-supplied node names, we no longer need
to support a possible stack of conflicting symlinks and node names.
Only symlinks with identical names can be claimed by multiple devices.
This shrinks the former /dev/.udev/names/ significantly.
Also the /dev/{block,char}/MAJ:MIN" links are excluded from the name
stack - they are unique and can not conflict.
Starting from version 1.4, cups now uses libusb and printer USB devices instead
of the usblp generated /dev/usb/lpX ones. In order to not require the cups USB
backend to run as root now, change raw USB printer devices to be root:lp 0660,
similar to usblpX devices.
This might also enable the hplip backend to not run as root, since this has
always used raw device nodes.
https://launchpad.net/bugs/420015
