apt-get update mdadm 可怕的警告

apt-get update mdadm 可怕的警告

刚刚在我的其中一台专用服务器上运行了 apt-get update,结果出现了一个相对可怕的警告:

Processing triggers for initramfs-tools ...
update-initramfs: Generating /boot/initrd.img-2.6.26-2-686-bigmem
W: mdadm: the array /dev/md/1 with UUID c622dd79:496607cf:c230666b:5103eba0
W: mdadm: is currently active, but it is not listed in mdadm.conf. if
W: mdadm: it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!
W: mdadm: please inspect the output of /usr/share/mdadm/mkconf, compare
W: mdadm: it to /etc/mdadm/mdadm.conf, and make the necessary changes.
W: mdadm: the array /dev/md/2 with UUID 24120323:8c54087c:c230666b:5103eba0
W: mdadm: is currently active, but it is not listed in mdadm.conf. if
W: mdadm: it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!
W: mdadm: please inspect the output of /usr/share/mdadm/mkconf, compare
W: mdadm: it to /etc/mdadm/mdadm.conf, and make the necessary changes.
W: mdadm: the array /dev/md/6 with UUID eef74de5:9267b2a1:c230666b:5103eba0
W: mdadm: is currently active, but it is not listed in mdadm.conf. if
W: mdadm: it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!
W: mdadm: please inspect the output of /usr/share/mdadm/mkconf, compare
W: mdadm: it to /etc/mdadm/mdadm.conf, and make the necessary changes.
W: mdadm: the array /dev/md/5 with UUID 5d45b20c:04d8138f:c230666b:5103eba0
W: mdadm: is currently active, but it is not listed in mdadm.conf. if
W: mdadm: it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!
W: mdadm: please inspect the output of /usr/share/mdadm/mkconf, compare
W: mdadm: it to /etc/mdadm/mdadm.conf, and make the necessary changes.

按照指示,我检查了 /usr/share/mdadm/mkconf 的输出并与 /etc/mdadm/mdadm.conf 进行了比较,发现它们有很大不同。

以下是 /etc/mdadm/mdadm.conf 的内容:

# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# definitions of existing MD arrays
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=b93b0b87:5f7c2c46:0043fca9:4026c400
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=c0fa8842:e214fb1a:fad8a3a2:28f2aabc
ARRAY /dev/md2 level=raid1 num-devices=2 UUID=cdc2a9a9:63bbda21:f55e806c:a5371897
ARRAY /dev/md3 level=raid1 num-devices=2 UUID=eca75495:9c9ce18c:d2bac587:f1e79d80

# This file was auto-generated on Wed, 04 Nov 2009 11:32:16 +0100
# by mkconf $Id$

以下是 /usr/share/mdadm/mkconf 的输出

# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# definitions of existing MD arrays
ARRAY /dev/md1 UUID=c622dd79:496607cf:c230666b:5103eba0
ARRAY /dev/md2 UUID=24120323:8c54087c:c230666b:5103eba0
ARRAY /dev/md5 UUID=5d45b20c:04d8138f:c230666b:5103eba0
ARRAY /dev/md6 UUID=eef74de5:9267b2a1:c230666b:5103eba0

# This configuration was auto-generated on Sat, 25 Feb 2012 13:10:00 +1030
# by mkconf 3.1.4-1+8efb9d1+squeeze1

据我了解,我需要将 /etc/mdadm/mdadm.conf 文件中以“ARRAY”开头的四行替换为 /usr/share/mdadm/mkconf 输出中的不同四行“ARRAY”。

当我执行此操作然后运行 ​​update-initramfs -u 时,不再出现警告。

我上面做的对吗?我现在很害怕重启服务器,因为我担心它不会重启,而且作为远程专用服务器,这肯定意味着停机,而且重新启动的成本可能很高。

跟进(回答问题):

mount 的输出:

/dev/md1 on / type ext3 (rw,usrquota,grpquota)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/md2 on /boot type ext2 (rw)
/dev/md5 on /tmp type ext3 (rw)
/dev/md6 on /home type ext3 (rw,usrquota,grpquota)

mdadm --detail /dev/md0

mdadm: md device /dev/md0 does not appear to be active.

mdadm --detail /dev/md1

/dev/md1:
    Version : 0.90
  Creation Time : Sun Aug 14 09:43:08 2011
     Raid Level : raid1
     Array Size : 31463232 (30.01 GiB 32.22 GB)
  Used Dev Size : 31463232 (30.01 GiB 32.22 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Sat Feb 25 14:03:47 2012
      State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

       UUID : c622dd79:496607cf:c230666b:5103eba0
     Events : 0.24

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1

mdadm --detail /dev/md2

/dev/md2:
    Version : 0.90
  Creation Time : Sun Aug 14 09:43:09 2011
     Raid Level : raid1
     Array Size : 104320 (101.89 MiB 106.82 MB)
  Used Dev Size : 104320 (101.89 MiB 106.82 MB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 2
    Persistence : Superblock is persistent

    Update Time : Sat Feb 25 13:20:20 2012
      State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

       UUID : 24120323:8c54087c:c230666b:5103eba0
     Events : 0.30

    Number   Major   Minor   RaidDevice State
       0       8        2        0      active sync   /dev/sda2
       1       8       18        1      active sync   /dev/sdb2

mdadm --detail /dev/md3

mdadm: md device /dev/md3 does not appear to be active.

mdadm --detail /dev/md5

/dev/md5:
    Version : 0.90
  Creation Time : Sun Aug 14 09:43:09 2011
     Raid Level : raid1
     Array Size : 2104448 (2.01 GiB 2.15 GB)
  Used Dev Size : 2104448 (2.01 GiB 2.15 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 5
    Persistence : Superblock is persistent

    Update Time : Sat Feb 25 14:09:03 2012
      State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

       UUID : 5d45b20c:04d8138f:c230666b:5103eba0
     Events : 0.30

    Number   Major   Minor   RaidDevice State
       0       8        5        0      active sync   /dev/sda5
       1       8       21        1      active sync   /dev/sdb5

mdadm --detail /dev/md6

/dev/md6:
    Version : 0.90
  Creation Time : Sun Aug 14 09:43:09 2011
     Raid Level : raid1
     Array Size : 453659456 (432.64 GiB 464.55 GB)
  Used Dev Size : 453659456 (432.64 GiB 464.55 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 6
    Persistence : Superblock is persistent

    Update Time : Sat Feb 25 14:10:00 2012
      State : active
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

       UUID : eef74de5:9267b2a1:c230666b:5103eba0
     Events : 0.31

    Number   Major   Minor   RaidDevice State
       0       8        6        0      active sync   /dev/sda6
       1       8       22        1      active sync   /dev/sdb6

跟进2(回答问题):

/etc/fstab 的输出

/dev/md1      /                    ext3 defaults,usrquota,grpquota 1 1
devpts         /dev/pts             devpts     mode=0620,gid=5       0 0
proc           /proc                proc       defaults              0 0
#usbdevfs       /proc/bus/usb        usbdevfs   noauto                0 0
/dev/cdrom     /media/cdrom         auto       ro,noauto,user,exec   0 0
/dev/dvd       /media/dvd           auto       ro,noauto,user,exec   0 0
#
#
#
/dev/md2       /boot    ext2       defaults 1 2
/dev/sda3       swap     swap       pri=42   0 0
/dev/sdb3       swap     swap       pri=42   0 0
/dev/md5       /tmp     ext3       defaults 0 0
/dev/md6       /home    ext3       defaults,usrquota,grpquota 1 2

答案1

看起来警告是正确的 – 您当前的布局与您的有很大不同mdadm.conf

给出的设置/usr/share/mdadm/mkconf似乎是正确的。只需验证一下 - 您的/etc/fstab输入是否与您当前的坐骑相匹配?

由于这个系统似乎发生了一些较大的变化,我仍然有点担心重启。先备份!

答案2

您需要做的就是:

首先,将mdadm.conf结果更改为mkconf

/usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf

然后,你必须更新initramfs

update-initramfs -u

现在,您可以重新启动系统。

答案3

我遇到了类似的问题,但是mdadm.conf在 Debian 升级(Lenny 到 Squeeze)后,数组没有发生变化,而是变为空。

W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.

相同的解决方案有效。我使用的输出mkconf作为我的mdadm.conf

/usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf

重启测试通过。

答案4

只是后续行动。

最后备份了服务器上的所有数据并重新启动,服务器重新启动时没有出现问题。因此,上面概述的更改(在原始问题中)是正确的。

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