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* Work around a bug in QEMU, which doesn't implement the "READ DISC 

INFORMATION" SCSI command:

    https://bugzilla.redhat.com/show_bug.cgi?id=609049

  As a result, `cdrom_id' doesn't print
  ID_CDROM_MEDIA_TRACK_COUNT_DATA, which in turn prevents the
  /dev/disk/by-label symlinks from being created.  We need these in
  the NixOS installation CD, so use ID_CDROM_MEDIA in the
  corresponding udev rules for now.  This was the behaviour in udev <=
  154.  See also
       
    http://www.spinics.net/lists/hotplug/msg03935.html

svn path=/nixos/trunk/; revision=22691
This commit is contained in:
Eelco Dolstra 2010-07-21 21:15:54 +00:00
parent d7f638da0c
commit e7c0c929ed
1 changed files with 14 additions and 1 deletions
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15
modules/system/boot/stage-1.nix
View File

@ -249,7 +249,20 @@ let
# Such a link can get obsolete in a running system, but # Such a link can get obsolete in a running system, but
# during boot stage 1 it is unlikely. We need this change # during boot stage 1 it is unlikely. We need this change
# to be able to boot on a wider choice of CD drives. # to be able to boot on a wider choice of CD drives.
sed -e '/^ENV[{]DEVTYPE[}]=="disk", .*GOTO/d' -i $out/60-persistent-storage.rules sed -e '/^ENV[{]DEVTYPE[}]=="disk", .*GOTO/d' -i $out/60-persistent-storage.rules
# Work around a bug in QEMU, which doesn't implement the "READ
# DISC INFORMATION" SCSI command:
# https://bugzilla.redhat.com/show_bug.cgi?id=609049
# As a result, `cdrom_id' doesn't print
# ID_CDROM_MEDIA_TRACK_COUNT_DATA, which in turn prevents the
# /dev/disk/by-label symlinks from being created. We need these
# in the NixOS installation CD, so use ID_CDROM_MEDIA in the
# corresponding udev rules for now. This was the behaviour in
# udev <= 154. See also
# http://www.spinics.net/lists/hotplug/msg03935.html
substituteInPlace $out/60-persistent-storage.rules \
--replace ID_CDROM_MEDIA_TRACK_COUNT_DATA ID_CDROM_MEDIA
''; # */ ''; # */
}; };