Добрый день. Debian Linux:
#uname -sr
Linux 2.6.26-2-amd64

При попыке создать volume group на разделе диска и получаю следующее сообщение:

#pvcreate /dev/cciss/c0d0p4
  Device /dev/cciss/c0d0p4 not found (or ignored by filtering).

В чем причина?

Кусок lvm.conf
# This is an example configuration file for the LVM2 system.
# It contains the default settings that would be used if there was no
# /etc/lvm/lvm.conf file.
#
# Refer to 'man lvm.conf' for further information including the file layout.
#
# To put this file in a different directory and override /etc/lvm set
# the environment variable LVM_SYSTEM_DIR before running the tools.

# This section allows you to configure which block devices should
# be used by the LVM system.
devices {

    # Where do you want your volume groups to appear ?
    dir = "/dev"

    # An array of directories that contain the device nodes you wish
    # to use with LVM2.
    scan = [ "/dev" ]

    # If several entries in the scanned directories correspond to the
    # same block device and the tools need to display a name for device,
    # all the pathnames are matched against each item in the following
    # list of regular expressions in turn and the first match is used.
    preferred_names = [ ]

    # Try to avoid using undescriptive /dev/dm-N names, if present.
    # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]

    # A filter that tells LVM2 to only use a restricted set of devices.
    # The filter consists of an array of regular expressions.  These
    # expressions can be delimited by a character of your choice, and
    # prefixed with either an 'a' (for accept) or 'r' (for reject).
    # The first expression found to match a device name determines if
    # the device will be accepted or rejected (ignored).  Devices that
    # don't match any patterns are accepted.

    # Be careful if there there are symbolic links or multiple filesystem
    # entries for the same device as each name is checked separately against
    # the list of patterns.  The effect is that if any name matches any 'a'
    # pattern, the device is accepted; otherwise if any name matches any 'r'
    # pattern it is rejected; otherwise it is accepted.

    # Don't have more than one filter line active at once: only one gets used.

    # Run vgscan after you change this parameter to ensure that
    # the cache file gets regenerated (see below).
    # If it doesn't do what you expect, check the output of 'vgscan -vvvv'.

    # By default we accept every block device:
    #filter = [ "a/.*/" ]

    # Exclude the cdrom drive
     filter = [ "r|/dev/cdrom|" ]

    # When testing I like to work with just loopback devices:
    # filter = [ "a/loop/", "r/.*/" ]

    # Or maybe all loops and ide drives except hdc:
    # filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]

    # Use anchors if you want to be really specific
    # filter = [ "a|^/dev/hda8$|", "r/.*/" ]

    # The results of the filtering are cached on disk to avoid
    # rescanning dud devices (which can take a very long time).
    # By default this cache is stored in the /etc/lvm/cache directory
    # in a file called '.cache'.
    # It is safe to delete the contents: the tools regenerate it.
    # (The old setting 'cache' is still respected if neither of
    # these new ones is present.)
    cache_dir = "/etc/lvm/cache"
    cache_file_prefix = ""

Вывод fdisk:

#fdisk -l /dev/cciss/c0d0
Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite)

Disk /dev/cciss/c0d0: 146.7 GB, 146780121600 bytes
255 heads, 63 sectors/track, 17845 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0008a038

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1               1          24      192748+  83  Linux
/dev/cciss/c0d0p2              25         997     7815622+  82  Linux swap / Solaris
/dev/cciss/c0d0p3             998        2213     9767520   83  Linux
/dev/cciss/c0d0p4            2214       17845   125564040    5  Extended