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  • pvcreate出现错误:Device /dev/sdb1 not found (or ignored by filtering).

    错误信息:

    [root@compute2 ~]# pvcreate -vvv /dev/sdb1
    ……
    Device /dev/sdb1 not found (or ignored by filtering).
    No devices to process.
    Unlocking /run/lock/lvm/P_orphans
    _undo_flock /run/lock/lvm/P_orphans
    lvmcache has no info for vgname "#orphans".
    Setting global/notify_dbus to 1
    Completed: pvcreate -vvv /dev/sdb1

    解决思路:

    1. 查看是否有/dev/sdb1的分区

    如果没有分区,通过下面的命令创建分区:
    fdisk /dev/sdb

    附:如果想删除上面的分区重新做分区,可以用
    dd if=/dev/urandom of=/dev/sdb bs=512 count=64


    2. 如果步骤1没有问题,再看一下/etc/lvm/lvm.conf中的“devices”字段中的“filters”是否有a/sdb/。
    # Configuration section devices.
    # How LVM uses block devices.
    devices {
    ……
    # Configuration option devices/filter.
    # Limit the block devices that are used by LVM commands.
    # This is a list of regular expressions used to accept or reject block
    # device path names. Each regex is delimited by a vertical bar '|'
    # (or any character) and is preceded by 'a' to accept the path, or
    # by 'r' to reject the path. The first regex in the list to match the
    # path is used, producing the 'a' or 'r' result for the device.
    # When multiple path names exist for a block device, if any path name
    # matches an 'a' pattern before an 'r' pattern, then the device is
    # accepted. If all the path names match an 'r' pattern first, then the
    # device is rejected. Unmatching path names do not affect the accept
    # or reject decision. If no path names for a device match a pattern,
    # then the device is accepted. Be careful mixing 'a' and 'r' patterns,
    # as the combination might produce unexpected results (test changes.)
    # Run vgscan after changing the filter to regenerate the cache.
    # See the use_lvmetad comment for a special case regarding filters.
    #
    # Example
    # Accept every block device:
    # filter = [ "a|.*/|" ]
    # Reject the cdrom drive:
    # filter = [ "r|/dev/cdrom|" ]
    # Work with just loopback devices, e.g. for testing:
    # filter = [ "a|loop|", "r|.*|" ]
    # Accept all loop devices and ide drives except hdc:
    # filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
    # Use anchors to be very specific:
    # filter = [ "a|^/dev/hda8$|", "r|.*/|" ]
    #
    # This configuration option has an automatic default value.
    # filter = [ "a|.*/|" ]
    #filter = [ "a/sda/", "r/.*/"]
    filter = [ "a/sda/", "a/sdb/", "r/.*/"]

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  • 原文地址:https://www.cnblogs.com/double12gzh/p/10166100.html
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