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MDADM can't automount existing RAID1 array
mdadm; previously working; after “failure”, cannot join array due to disk sizemdadm - RAID5 array size vs. actual disk size mismatchAn existing mdadm RAID5 is not mounting, Either a problem drive or SuperblockHow to replace faulty device on RAID5Replacing a disk to RAID5 failedHow do I (re)build/create/assemble an IMSM RAID-0 array from disk images instead of disk drives using mdadm?MDADM lists same device twiceError setting up Raid 1 with mdadm at RaspberryPi 2Help with mdadm will not reassembleRebuilding mdadm RAID 5 array with multiple failed drives
0
I recently reformatted my system and cannot get my RAID 1 array to load on boot. Would appreciate some help figuring out why this is. Using ubuntu 14 with MDADM. Its a very simple RAID1 array consisting of 2 drives sda and sdb. I tried to edit fstab to mount the RAID but it fails at boot and asks me to press a key to skip mounting.
Here's my MDADM.conf file
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# 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 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
ARRAY /dev/md/Storage(RAID) container=4e85cd11:34b3cd40:f263b2be:616ef7fb member=0 UUID=c26e7f0d:a956fc70:db00c387:58e7a99a
# This file was auto-generated on Sun, 10 Mar 2019 16:31:50 -0500
# by mkconf $Id$
Output from mdadm --Examine /dev/sda:
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from mdadm --Examine /dev/sdb:
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 1
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT gives the following:
NAME SIZE FSTYPE TYPE MOUNTPOINT
sda 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sdb 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sr0 1024M rom
nvme0n1 477G disk
├─nvme0n1p1 499M part
├─nvme0n1p2 99M part /boot/efi
├─nvme0n1p3 16M part
├─nvme0n1p4 237.4G part
├─nvme0n1p5 470M part
├─nvme0n1p6 232.9G part /
└─nvme0n1p9 1.9G part [SWAP]
If I run sudo mdadm --verbose --assemble --scan after boot, here is the output
mdadm: looking for devices for further assembly
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no RAID superblock on /dev/nvme0n1p9
mdadm: no RAID superblock on /dev/nvme0n1p6
mdadm: no RAID superblock on /dev/nvme0n1p5
mdadm: no RAID superblock on /dev/nvme0n1p4
mdadm: no RAID superblock on /dev/nvme0n1p3
mdadm: no RAID superblock on /dev/nvme0n1p2
mdadm: no RAID superblock on /dev/nvme0n1p1
mdadm: no RAID superblock on /dev/nvme0n1
mdadm: /dev/sdb is identified as a member of /dev/md/imsm0, slot -1.
mdadm: /dev/sda is identified as a member of /dev/md/imsm0, slot -1.
mdadm: added /dev/sda to /dev/md/imsm0 as -1
mdadm: added /dev/sdb to /dev/md/imsm0 as -1
mdadm: Container /dev/md/imsm0 has been assembled with 2 drives
mdadm: looking for devices for further assembly
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: found match on member /md127/0 in /dev/md127
mdadm: Started /dev/md/Storage(RAID)_0 with 2 devices
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
mdadm: looking for devices for further assembly
mdadm: Cannot assemble mbr metadata on /dev/md/Storage_RAID__0p2
mdadm: no recogniseable superblock on /dev/md/Storage_RAID__0p1
mdadm: Cannot assemble mbr metadata on /dev/md126
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
I've made sure initramfs is updated when making changes to mdadm.conf. And once I run the --assemble --scan command, it does mount the arrays. If I then do cat /proc/mdstat I get:
md127 : inactive sdb[1](S) sda[0](S)
5032 blocks super external:imsm
md126 : active (auto-read-only) raid1 sda[1] sdb[0]
5860519936 blocks super external:/md127/0 [2/2] [UU]
But if I try to do mdadm --detail --scan to add to the mdadm.conf file I get this:
ARRAY /dev/md/imsm0 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
mdadm: cannot open /dev/md/Storage(RAID)_0: No such file or directory
I need this array to mount at boot but have no idea what is stopping that from happening.
ubuntu raid mdadm
asked 1 hour ago
ccac3ccac3
1
New contributor
ccac3 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
I recently reformatted my system and cannot get my RAID 1 array to load on boot. Would appreciate some help figuring out why this is. Using ubuntu 14 with MDADM. Its a very simple RAID1 array consisting of 2 drives sda and sdb. I tried to edit fstab to mount the RAID but it fails at boot and asks me to press a key to skip mounting.
Here's my MDADM.conf file
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# 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 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
ARRAY /dev/md/Storage(RAID) container=4e85cd11:34b3cd40:f263b2be:616ef7fb member=0 UUID=c26e7f0d:a956fc70:db00c387:58e7a99a
# This file was auto-generated on Sun, 10 Mar 2019 16:31:50 -0500
# by mkconf $Id$
Output from mdadm --Examine /dev/sda:
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from mdadm --Examine /dev/sdb:
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 1
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT gives the following:
NAME SIZE FSTYPE TYPE MOUNTPOINT
sda 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sdb 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sr0 1024M rom
nvme0n1 477G disk
├─nvme0n1p1 499M part
├─nvme0n1p2 99M part /boot/efi
├─nvme0n1p3 16M part
├─nvme0n1p4 237.4G part
├─nvme0n1p5 470M part
├─nvme0n1p6 232.9G part /
└─nvme0n1p9 1.9G part [SWAP]
If I run sudo mdadm --verbose --assemble --scan after boot, here is the output
mdadm: looking for devices for further assembly
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no RAID superblock on /dev/nvme0n1p9
mdadm: no RAID superblock on /dev/nvme0n1p6
mdadm: no RAID superblock on /dev/nvme0n1p5
mdadm: no RAID superblock on /dev/nvme0n1p4
mdadm: no RAID superblock on /dev/nvme0n1p3
mdadm: no RAID superblock on /dev/nvme0n1p2
mdadm: no RAID superblock on /dev/nvme0n1p1
mdadm: no RAID superblock on /dev/nvme0n1
mdadm: /dev/sdb is identified as a member of /dev/md/imsm0, slot -1.
mdadm: /dev/sda is identified as a member of /dev/md/imsm0, slot -1.
mdadm: added /dev/sda to /dev/md/imsm0 as -1
mdadm: added /dev/sdb to /dev/md/imsm0 as -1
mdadm: Container /dev/md/imsm0 has been assembled with 2 drives
mdadm: looking for devices for further assembly
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: found match on member /md127/0 in /dev/md127
mdadm: Started /dev/md/Storage(RAID)_0 with 2 devices
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
mdadm: looking for devices for further assembly
mdadm: Cannot assemble mbr metadata on /dev/md/Storage_RAID__0p2
mdadm: no recogniseable superblock on /dev/md/Storage_RAID__0p1
mdadm: Cannot assemble mbr metadata on /dev/md126
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
I've made sure initramfs is updated when making changes to mdadm.conf. And once I run the --assemble --scan command, it does mount the arrays. If I then do cat /proc/mdstat I get:
md127 : inactive sdb[1](S) sda[0](S)
5032 blocks super external:imsm
md126 : active (auto-read-only) raid1 sda[1] sdb[0]
5860519936 blocks super external:/md127/0 [2/2] [UU]
But if I try to do mdadm --detail --scan to add to the mdadm.conf file I get this:
ARRAY /dev/md/imsm0 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
mdadm: cannot open /dev/md/Storage(RAID)_0: No such file or directory
I need this array to mount at boot but have no idea what is stopping that from happening.
ubuntu raid mdadm
asked 1 hour ago
ccac3ccac3
1
New contributor
ccac3 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
0
0
I recently reformatted my system and cannot get my RAID 1 array to load on boot. Would appreciate some help figuring out why this is. Using ubuntu 14 with MDADM. Its a very simple RAID1 array consisting of 2 drives sda and sdb. I tried to edit fstab to mount the RAID but it fails at boot and asks me to press a key to skip mounting.
Here's my MDADM.conf file
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# 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 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
ARRAY /dev/md/Storage(RAID) container=4e85cd11:34b3cd40:f263b2be:616ef7fb member=0 UUID=c26e7f0d:a956fc70:db00c387:58e7a99a
# This file was auto-generated on Sun, 10 Mar 2019 16:31:50 -0500
# by mkconf $Id$
Output from mdadm --Examine /dev/sda:
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from mdadm --Examine /dev/sdb:
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 1
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT gives the following:
NAME SIZE FSTYPE TYPE MOUNTPOINT
sda 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sdb 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sr0 1024M rom
nvme0n1 477G disk
├─nvme0n1p1 499M part
├─nvme0n1p2 99M part /boot/efi
├─nvme0n1p3 16M part
├─nvme0n1p4 237.4G part
├─nvme0n1p5 470M part
├─nvme0n1p6 232.9G part /
└─nvme0n1p9 1.9G part [SWAP]
If I run sudo mdadm --verbose --assemble --scan after boot, here is the output
mdadm: looking for devices for further assembly
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no RAID superblock on /dev/nvme0n1p9
mdadm: no RAID superblock on /dev/nvme0n1p6
mdadm: no RAID superblock on /dev/nvme0n1p5
mdadm: no RAID superblock on /dev/nvme0n1p4
mdadm: no RAID superblock on /dev/nvme0n1p3
mdadm: no RAID superblock on /dev/nvme0n1p2
mdadm: no RAID superblock on /dev/nvme0n1p1
mdadm: no RAID superblock on /dev/nvme0n1
mdadm: /dev/sdb is identified as a member of /dev/md/imsm0, slot -1.
mdadm: /dev/sda is identified as a member of /dev/md/imsm0, slot -1.
mdadm: added /dev/sda to /dev/md/imsm0 as -1
mdadm: added /dev/sdb to /dev/md/imsm0 as -1
mdadm: Container /dev/md/imsm0 has been assembled with 2 drives
mdadm: looking for devices for further assembly
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: found match on member /md127/0 in /dev/md127
mdadm: Started /dev/md/Storage(RAID)_0 with 2 devices
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
mdadm: looking for devices for further assembly
mdadm: Cannot assemble mbr metadata on /dev/md/Storage_RAID__0p2
mdadm: no recogniseable superblock on /dev/md/Storage_RAID__0p1
mdadm: Cannot assemble mbr metadata on /dev/md126
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
I've made sure initramfs is updated when making changes to mdadm.conf. And once I run the --assemble --scan command, it does mount the arrays. If I then do cat /proc/mdstat I get:
md127 : inactive sdb[1](S) sda[0](S)
5032 blocks super external:imsm
md126 : active (auto-read-only) raid1 sda[1] sdb[0]
5860519936 blocks super external:/md127/0 [2/2] [UU]
But if I try to do mdadm --detail --scan to add to the mdadm.conf file I get this:
ARRAY /dev/md/imsm0 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
mdadm: cannot open /dev/md/Storage(RAID)_0: No such file or directory
I need this array to mount at boot but have no idea what is stopping that from happening.
ubuntu raid mdadm
asked 1 hour ago
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I recently reformatted my system and cannot get my RAID 1 array to load on boot. Would appreciate some help figuring out why this is. Using ubuntu 14 with MDADM. Its a very simple RAID1 array consisting of 2 drives sda and sdb. I tried to edit fstab to mount the RAID but it fails at boot and asks me to press a key to skip mounting.
Here's my MDADM.conf file
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# 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 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
ARRAY /dev/md/Storage(RAID) container=4e85cd11:34b3cd40:f263b2be:616ef7fb member=0 UUID=c26e7f0d:a956fc70:db00c387:58e7a99a
# This file was auto-generated on Sun, 10 Mar 2019 16:31:50 -0500
# by mkconf $Id$
Output from mdadm --Examine /dev/sda:
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from mdadm --Examine /dev/sdb:
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 96f17bdd
Family : 96f17bdd
Generation : 000bd2b7
Attributes : All supported
UUID : 4e85cd11:34b3cd40:f263b2be:616ef7fb
Checksum : 7eee6b4f correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk01 Serial : ZAD05L4F
State : active
Id : 00000006
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
[Storage(RAID)]:
UUID : c26e7f0d:a956fc70:db00c387:58e7a99a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 1
Array Size : 11721039872 (5589.03 GiB 6001.17 GB)
Per Dev Size : 11721040136 (5589.03 GiB 6001.17 GB)
Sector Offset : 0
Num Stripes : 45785312
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : ZAD04VWC
State : active
Id : 00000004
Usable Size : 11721040136 (5589.03 GiB 6001.17 GB)
Output from lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT gives the following:
NAME SIZE FSTYPE TYPE MOUNTPOINT
sda 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sdb 5.5T disk
└─md126 5.5T raid1
├─md126p1 128M md
└─md126p2 5.5T md
sr0 1024M rom
nvme0n1 477G disk
├─nvme0n1p1 499M part
├─nvme0n1p2 99M part /boot/efi
├─nvme0n1p3 16M part
├─nvme0n1p4 237.4G part
├─nvme0n1p5 470M part
├─nvme0n1p6 232.9G part /
└─nvme0n1p9 1.9G part [SWAP]
If I run sudo mdadm --verbose --assemble --scan after boot, here is the output
mdadm: looking for devices for further assembly
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no RAID superblock on /dev/nvme0n1p9
mdadm: no RAID superblock on /dev/nvme0n1p6
mdadm: no RAID superblock on /dev/nvme0n1p5
mdadm: no RAID superblock on /dev/nvme0n1p4
mdadm: no RAID superblock on /dev/nvme0n1p3
mdadm: no RAID superblock on /dev/nvme0n1p2
mdadm: no RAID superblock on /dev/nvme0n1p1
mdadm: no RAID superblock on /dev/nvme0n1
mdadm: /dev/sdb is identified as a member of /dev/md/imsm0, slot -1.
mdadm: /dev/sda is identified as a member of /dev/md/imsm0, slot -1.
mdadm: added /dev/sda to /dev/md/imsm0 as -1
mdadm: added /dev/sdb to /dev/md/imsm0 as -1
mdadm: Container /dev/md/imsm0 has been assembled with 2 drives
mdadm: looking for devices for further assembly
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: found match on member /md127/0 in /dev/md127
mdadm: Started /dev/md/Storage(RAID)_0 with 2 devices
mdadm: looking for devices for further assembly
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
mdadm: looking for devices for further assembly
mdadm: Cannot assemble mbr metadata on /dev/md/Storage_RAID__0p2
mdadm: no recogniseable superblock on /dev/md/Storage_RAID__0p1
mdadm: Cannot assemble mbr metadata on /dev/md126
mdadm: /dev/sdb is busy - skipping
mdadm: /dev/sda is busy - skipping
mdadm: cannot open device /dev/sr0: No medium found
mdadm: no recogniseable superblock on /dev/nvme0n1p9
mdadm: no recogniseable superblock on /dev/nvme0n1p6
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p5
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p4
mdadm: no recogniseable superblock on /dev/nvme0n1p3
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p2
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1p1
mdadm: Cannot assemble mbr metadata on /dev/nvme0n1
mdadm: looking in container /dev/md127
mdadm: member /md127/0 in /dev/md127 is already assembled
I've made sure initramfs is updated when making changes to mdadm.conf. And once I run the --assemble --scan command, it does mount the arrays. If I then do cat /proc/mdstat I get:
md127 : inactive sdb[1](S) sda[0](S)
5032 blocks super external:imsm
md126 : active (auto-read-only) raid1 sda[1] sdb[0]
5860519936 blocks super external:/md127/0 [2/2] [UU]
But if I try to do mdadm --detail --scan to add to the mdadm.conf file I get this:
ARRAY /dev/md/imsm0 metadata=imsm UUID=4e85cd11:34b3cd40:f263b2be:616ef7fb
mdadm: cannot open /dev/md/Storage(RAID)_0: No such file or directory
I need this array to mount at boot but have no idea what is stopping that from happening.
ubuntu raid mdadm
ubuntu raid mdadm
asked 1 hour ago
ccac3ccac3
1
New contributor
ccac3 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 1 hour ago
ccac3ccac3
1
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asked 1 hour ago
ccac3ccac3
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asked 1 hour ago
ccac3ccac3
1
asked 1 hour ago
ccac3ccac3
1
1
New contributor
ccac3 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor
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-mdadm, raid, ubuntu
