Chỉ cần chạy một bản cập nhật apt-get trên một trong những máy chủ chuyên dụng của tôi để lại một cảnh báo tương đối đáng sợ:
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.
Theo hướng dẫn, tôi đã kiểm tra đầu ra của / usr / share / mdadm / mkconf và so sánh với /etc/mdadm/mdadm.conf và chúng hoàn toàn khác nhau.
Dưới đây là nội dung /etc/mdadm/mdadm.conf:
# 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 $Id$
Và đây là phần đặt ra từ / usr / share / mdadm / mkconf
# 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
Theo tôi hiểu, tôi cần thay thế bốn dòng bắt đầu bằng 'ARRAY' trong tệp /etc/mdadm/mdadm.conf bằng bốn dòng 'ARRAY' khác nhau từ đầu ra / usr / share / mdadm / mkconf.
Khi tôi làm điều này và sau đó chạy update-initramfs -u không còn cảnh báo nào nữa.
Là những gì tôi đã làm ở trên chính xác? Bây giờ tôi rất sợ việc khởi động lại máy chủ vì sợ nó sẽ không khởi động lại và là một máy chủ chuyên dụng từ xa, điều này chắc chắn có nghĩa là thời gian chết và có thể sẽ rất tốn kém khi chạy lại.
FOLLOW UP (trả lời câu hỏi):
đầu ra từ mount:
/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 - chi tiết / dev / md0
mdadm: md device /dev/md0 does not appear to be active.
mdadm - chi tiết / 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 - chi tiết / 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 - chi tiết / dev / md3
mdadm: md device /dev/md3 does not appear to be active.
mdadm - chi tiết / 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 - chi tiết / 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
SAU 2 (trả lời câu hỏi):
Đầu ra từ / etc / fstab
/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
Cảm ơn - đã thêm thông tin FOLLOW UP ở trên (trong câu hỏi ban đầu)
—
user568829
mountvà cácmdadm --detaillệnh cho từng thiết bị MD không?