Red Hat Bugzilla – Bug 182600
External optical drive owned by root if connected after normal user is logged in
Last modified: 2007-11-30 17:11:24 EST
Description of problem: When I attach my external USB CDRW+DVD drive it becomes owned by root making it inaccessible for my normal logged in user until I log out and back in. [root@localhost cairo]# ls -l /dev/scd0 brw-r----- 1 root disk 11, 0 feb 23 17:37 /dev/scd0 [root@localhost cairo]# ls -l /dev/dvd lrwxrwxrwx 1 root root 4 feb 23 17:37 /dev/dvd -> scd0 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Possibly related stuff from /var/log/messages: Feb 23 17:52:33 localhost udevd-event[5772]: wait_for_sysfs: waiting for '/sys/block/sr0/bus' failed Feb 23 17:52:33 localhost udevd-event[5773]: wait_for_sysfs: waiting for '/sys/class/scsi_device/1:0:0:0/bus' failed Feb 23 17:52:33 localhost udevd-event[5774]: wait_for_sysfs: waiting for '/sys/class/scsi_generic/sg0/bus' failed
I'm pretty sure this is actually due to bug 182645 Kjartan: does downgrading udev to 084-1.1 make things work?
*** Bug 183934 has been marked as a duplicate of this bug. ***
try newest udev plz!
The latest udev fixes the wait_for_sysfs: messages, but the device is still owned by root when logging in. [kmaraas@localhost gtksourceview]$ ls -l /dev/scd0 brw-r----- 1 root disk 11, 0 mar 6 16:45 /dev/scd0 [kmaraas@localhost gtksourceview]$ cat /proc/sys/dev/cdrom/info CD-ROM information, Id: cdrom.c 3.20 2003/12/17 drive name: sr0 drive speed: 24 drive # of slots: 1 Can close tray: 1 Can open tray: 1 Can lock tray: 1 Can change speed: 1 Can select disk: 0 Can read multisession: 1 Can read MCN: 1 Reports media changed: 1 Can play audio: 1 Can write CD-R: 1 Can write CD-RW: 1 Can read DVD: 1 Can write DVD-R: 0 Can write DVD-RAM: 0 Can read MRW: 1 Can write MRW: 1 Can write RAM: 1 I checked for any /dev/srX files and there are none.
I get this too with udev-084-11. The permissions are right on boot up with the drive attached [davidz@orion ~]$ rpm -q udev udev-084-11 [davidz@orion ~]$ ls -l /dev/cdrom* lrwxrwxrwx 1 root root 4 Mar 6 15:00 /dev/cdrom -> scd0 lrwxrwxrwx 1 root root 3 Mar 6 15:00 /dev/cdrom-hdc -> hdc lrwxrwxrwx 1 root root 3 Mar 6 15:00 /dev/cdrom-hdd -> hdd lrwxrwxrwx 1 root root 4 Mar 6 15:00 /dev/cdrom-sr0 -> scd0 [davidz@orion ~]$ ls -l /dev/scd0 /dev/hdc /dev/hdd brw------- 1 davidz disk 22, 0 Mar 6 15:00 /dev/hdc brw------- 1 davidz disk 22, 64 Mar 6 15:00 /dev/hdd brw------- 1 davidz disk 11, 0 Mar 6 15:00 /dev/scd0 but it's wrong on hotplug [davidz@orion ~]$ ls -l /dev/scd0 brw-r----- 1 root disk 11, 0 Mar 6 15:12 /dev/scd0 running start_udev doesn't fix it either.
huh? very strange... output of? # udevtest $(udevinfo -q path -n /dev/scd0) block # udevinfo -q all -n /dev/scd0 You also may set udev_log="debug" in /etc/udev/udev.conf and run udevmonitor.
[root@localhost atk-bridge]# udevinfo -q path -n /dev/scd0 /block/sr0 [root@localhost atk-bridge]# udevtest /block/sr0 block main: Usage: udevtest <devpath> [root@localhost atk-bridge]# udevtest /block/sr0 main: looking at device '/block/sr0' from subsystem 'block' udev_rules_get_name: add symlink 'cdrom' udev_rules_get_name: add symlink 'cdrom-sr0' run_program: 'check-cdrom.sh sr0 DVD' run_program: '/lib/udev/check-cdrom.sh' returned with status 0 udev_rules_get_name: add symlink 'dvd' udev_rules_get_name: add symlink 'dvd-sr0' run_program: 'check-cdrom.sh sr0 CD-R' run_program: '/lib/udev/check-cdrom.sh' returned with status 0 udev_rules_get_name: add symlink 'cdwriter' udev_rules_get_name: add symlink 'cdwriter-sr0' udev_rules_get_name: add symlink 'cdrw' udev_rules_get_name: add symlink 'cdrw-sr0' run_program: 'check-cdrom.sh sr0 DVD-R' run_program: '/lib/udev/check-cdrom.sh' returned with status 1 udev_rules_get_name: rule applied, 'sr0' becomes 'scd0' run_program: '/sbin/usb_id -x' run_program: '/sbin/usb_id' (stdout) 'ID_VENDOR=TOSHIBA' run_program: '/sbin/usb_id' (stdout) 'ID_MODEL=DVD-ROM_SD-R2512' run_program: '/sbin/usb_id' (stdout) 'ID_REVISION=1A04' run_program: '/sbin/usb_id' (stdout) 'ID_SERIAL=TOSHIBA_DVD-ROM_SD-R2512_WW46M90K5A30' run_program: '/sbin/usb_id' (stdout) 'ID_TYPE=cd' run_program: '/sbin/usb_id' (stdout) 'ID_BUS=usb' run_program: '/sbin/usb_id' returned with status 0 udev_rules_get_name: add symlink 'disk/by-id/usb-TOSHIBA_DVD-ROM_SD-R2512_WW46M90K5A30' run_program: '/sbin/path_id /block/sr0' run_program: '/sbin/path_id' (stdout) 'ID_PATH=usb-WW46M90K5A30:0:0:0' run_program: '/sbin/path_id' returned with status 0 udev_rules_get_name: add symlink 'disk/by-path/usb-WW46M90K5A30:0:0:0' create_node: creating device node '/dev/scd0', major = '11', minor = '0', mode = '0640', uid = '0', gid = '6' create_node: creating symlink '/dev/cdrom' to 'scd0' create_node: creating symlink '/dev/cdrom-sr0' to 'scd0' create_node: creating symlink '/dev/dvd' to 'scd0' create_node: creating symlink '/dev/dvd-sr0' to 'scd0' create_node: creating symlink '/dev/cdwriter' to 'scd0' create_node: creating symlink '/dev/cdwriter-sr0' to 'scd0' create_node: creating symlink '/dev/cdrw' to 'scd0' create_node: creating symlink '/dev/cdrw-sr0' to 'scd0' create_node: creating symlink '/dev/disk/by-id/usb-TOSHIBA_DVD-ROM_SD-R2512_WW46M90K5A30' to '../../scd0' create_node: creating symlink '/dev/disk/by-path/usb-WW46M90K5A30:0:0:0' to '../../scd0' main: run: 'socket:/org/kernel/udev/monitor' main: run: '/lib/udev/udev_run_devd' main: run: 'socket:/org/freedesktop/hal/udev_event' [root@localhost atk-bridge]# udevinfo -q all -n /dev/scd0 P: /block/sr0 N: scd0 S: cdrom S: cdrom-sr0 S: dvd S: dvd-sr0 S: cdwriter S: cdwriter-sr0 S: cdrw S: cdrw-sr0 S: disk/by-id/usb-TOSHIBA_DVD-ROM_SD-R2512_WW46M90K5A30 S: disk/by-path/usb-WW46M90K5A30:0:0:0 E: ID_VENDOR=TOSHIBA E: ID_MODEL=DVD-ROM_SD-R2512 E: ID_REVISION=1A04 E: ID_SERIAL=TOSHIBA_DVD-ROM_SD-R2512_WW46M90K5A30 E: ID_TYPE=cd E: ID_BUS=usb E: ID_PATH=usb-WW46M90K5A30:0:0:0 [root@localhost atk-bridge]# log output when attaching the drive: UEVENT[1141756910.547906] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3 UEVENT[1141756910.548472] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3/3-3:1.0 UEVENT[1141756910.548595] add@/class/usb_device/usbdev3.4 UDEV [1141756910.801473] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3 UEVENT[1141756911.283708] add@/module/scsi_mod UEVENT[1141756911.283810] add@/module/usb_storage UEVENT[1141756911.283842] add@/bus/usb/drivers/usb-storage UEVENT[1141756911.283875] add@/class/scsi_host/host0 UDEV [1141756911.725114] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3/3-3:1.0 UDEV [1141756911.792482] add@/class/scsi_host/host0 UDEV [1141756912.095247] add@/class/usb_device/usbdev3.4 UEVENT[1141756916.253774] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3/3-3:1.0/host0/target0:0:0/0:0:0:0 UEVENT[1141756916.254932] add@/class/scsi_device/0:0:0:0 UDEV [1141756916.304949] add@/devices/pci0000:00/0000:00:12.2/usb3/3-3/3-3:1.0/host0/target0:0:0/0:0:0:0 UEVENT[1141756916.466561] add@/module/sg UEVENT[1141756916.516221] add@/class/scsi_generic/sg0 UEVENT[1141756916.588285] add@/module/sr_mod UEVENT[1141756916.594121] add@/bus/scsi/drivers/sr UEVENT[1141756916.716498] add@/block/sr0 UDEV [1141756916.731285] add@/class/scsi_device/0:0:0:0 UDEV [1141756916.871744] add@/class/scsi_generic/sg0 UDEV [1141756917.241671] add@/block/sr0
This works for me now. Closing.
*** Bug 159272 has been marked as a duplicate of this bug. ***