Re: [gentoo-user] udev update changed cd/dvd device name

[Bruce Hill]

On Mon, Nov 19, 2012 at 07:59:34AM -0800, Mark Knecht wrote:
> Anyone else run into this problem with udev-171-r9? I updated
> yesterday and my CD/DVD, which has been /dev/cdrom1 since I built the
> machine 2 1/2 years ago, is now called /dev/scd0.
>
> Machine is x86_64, mostly stable.
>
> - Mark

mingdao@workstation ~ $ cat /etc/udev/rules.d/70-persistent-cd.rules
# This file was automatically generated by the /lib/udev/write_cd_rules
# program, run by the cd-aliases-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and set the $GENERATED variable.

# TSSTcorp_CDDVDW_SH-222AB (pci-0000:00:11.0-scsi-0:0:0:0)
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-0:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-0:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-0:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-0:0:0:0", SYMLINK+="dvdrw", ENV{GENERATED}="1"

# TSSTcorp_CDDVDW_SH-222AB (pci-0000:00:11.0-scsi-3:0:0:0)
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="cdrom1", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="cdrw1", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="dvd1", ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="dvdrw1", ENV{GENERATED}="1"

mingdao@workstation ~ $ ls -l /dev/cdrom*
lrwxrwxrwx 1 root root 3 Nov 19 05:05 /dev/cdrom1 -> sr0
mingdao@workstation ~ $ ls -l /dev/sr*
brw-rw---- 1 root cdrom 11, 0 Nov 19 05:05 /dev/sr0
mingdao@workstation ~ $ ls -l /dev/scd*
lrwxrwxrwx 1 root root 3 Nov 19 05:05 /dev/scd0 -> sr0
mingdao@workstation ~ $ cat /var/log/portage/elog/sys-fs\:udev-171-r9\:20121119-131656.log
INFO: setup
Package:    sys-fs/udev-171-r9
Repository: gentoo
Maintainer: udev-bugs@g.o
USE:        amd64 elibc_glibc kernel_linux multilib rule_generator userland_GNU
FEATURES:   sandbox
Package:    sys-fs/udev-171-r9
Repository: gentoo
Maintainer: udev-bugs@g.o
USE:        amd64 elibc_glibc kernel_linux multilib rule_generator userland_GNU
FEATURES:   sandbox
Determining the location of the kernel source code
ERROR: setup
Unable to find kernel sources at /usr/src/linux
INFO: setup
Please make sure that /usr/src/linux points at your running kernel, 
(or the kernel you wish to build against).
Alternatively, set the KERNEL_DIR environment variable to the kernel sources location
WARN: setup
Unable to calculate Linux Kernel version for build, attempting to use running version
INFO: setup
Found kernel object directory:
    /home/mingdao/kernel/linux-3.0
Found sources for kernel version:
    3.0.51
Checking for suitable kernel configuration options...
WARN: setup

udev-171 does not support Linux kernel before version 2.6.32!
INFO: setup
Your kernel version (3.0.51) is new enough to run udev-171 reliably.
Found kernel object directory:
    /home/mingdao/kernel/linux-3.0
Found sources for kernel version:
    3.0.51
INFO: prepare
Applying udev-171-path_id-skip-ATA-transport.patch ...
Applying various patches (bugfixes/updates) ...
  0001-Revert-udevd-log-warning-if-run-is-not-writable.patch ...
Done with patching
Running elibtoolize in: udev-171/
  Applying portage/1.2.0 patch ...
  Applying sed/1.5.6 patch ...
  Applying as-needed/2.2.6 patch ...
LOG: postinst

Updating persistent-net rules file
WARN: postinst

You need to add udev-mount to the sysinit runlevel.
If you do not do this,
your system will not be able to boot!
Run this command:
	rc-update add udev-mount sysinit
LOG: postinst

persistent-net does assigning fixed names to network devices.
If you have problems with the persistent-net rules,
just delete the rules file
	rm /etc/udev/rules.d/70-persistent-net.rules
and then reboot.

This may however number your devices in a different way than they are now.
WARN: postinst

If you build an initramfs including udev, then please
make sure that the /sbin/udevadm binary gets included,
and your scripts changed to use it,as it replaces the
old helper apps udevinfo, udevtrigger, ...

mount options for directory /dev are no longer
set in /etc/udev/udev.conf, but in /etc/fstab
as for other directories.

If you use /dev/md/*, /dev/loop/* or /dev/rd/*,
then please migrate over to using the device names
/dev/md*, /dev/loop* and /dev/ram*.
The devfs-compat rules have been removed.
For reference see Bug #269359.

Rules for /dev/hd* devices have been removed
Please migrate to libata.
LOG: postinst

For more information on udev on Gentoo, writing udev rules, and
         fixing known issues visit:
         http://www.gentoo.org/doc/en/udev-guide.xml



Always good to have some idiot change things without mentioning it.

Before the update and reboot mine was /dev/cdrom symlinked to /dev/sr0

Good way to spend my day finding what said idiot broke where/why...


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