On 08/10/2017 01:26 PM, Mr Typo wrote: > Hello everyone, > > i had a power outage 2 days ago and when i came home i found my linux > box not booting up anymore. After some commands i found out that there > is a problem with a device not beeing mounted because md0 is missing. > > I tried to find out what is going on, but i cannot understand what is > going on. i hope you can help me. Linux is a CentOS7. > > I am posting the current status of the box below: > > thank you all in advance > > kind regards > Andy > [root@quad ~]# mdadm -Esv > ARRAY /dev/md/0 level=raid5 metadata=1.2 num-devices=4 > UUID=9d020f27:c0542472:b95a18d2:5741114d name=quad.:0 > devices=/dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1 It's running, it's just called /dev/md/0 instead. You should be able to temporarily change the name with mdadm --stop /dev/md/0 mdadm --assemble /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 I think for centos 7, to change what happens on boot you can edit /etc/mdadm.conf to explicitly name the array and run 'dracut -f' to update the initial ram disk that loads on boot before the actual root file system is mounted. 'man mdadm.conf' has an example of the mdadm.conf syntax. --Sarah -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
