Debian
apt-get update mdadm 可怕的警告
剛剛在我的一個專用伺服器上執行了一個 apt-get update ，留下了一個相對可怕的警告：
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，我檢查了 /usr/share/mdadm/mkconf 的輸出，並與 /etc/mdadm/mdadm.conf 進行了比較，它們完全不同。
這是 /etc/mdadm/mdadm.conf 內容：
# 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 $Id$這是 /usr/share/mdadm/mkconf 的輸出
# 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據我了解，我需要將 /etc/mdadm/mdadm.conf 文件中以“ARRAY”開頭的四行替換為 /usr/share/mdadm/mkconf 輸出中不同的四個“ARRAY”行。
當我這樣做然後執行 update-initramfs -u 時，沒有更多警告。
我在上面所做的是否正確？我現在害怕重新啟動伺服器，因為擔心它不會重新啟動並且作為遠端專用伺服器，這肯定意味著停機，並且再次執行可能會很昂貴。
跟進（回答問題）：
mount 的輸出：
/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/sdb1mdadm –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/sdb2mdadm –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/sdb5mdadm –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跟進 2（回答問題）：
/etc/fstab 的輸出
/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
看起來警告是正確的 - 您目前的佈局與您的
mdadm.conf.它給出的設置
/usr/share/mdadm/mkconf似乎是正確的。只是為了驗證 - 您的/etc/fstab條目是否與您目前的坐騎相匹配？由於該系統上似乎發生了一些重大變化，因此我仍然會有點擔心重新啟動。先備份！
您需要做的就是：
首先，
mdadm.conf將結果更改為mkconf/usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf然後，您必須更新
initramfsupdate-initramfs -u現在，您可以重新啟動系統。