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July 11, 2017 11:44
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Repairing RAID 1 partitions
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| #!/usr/bin/env bash | |
| pi@raspberrypi:~ $ sudo mdadm --create /dev/md2 --metadata=0.90 --raid-devices=2 --level=raid1 /dev/sda5 missing | |
| mdadm: /dev/sda5 appears to be part of a raid array: | |
| level=raid1 devices=2 ctime=Wed Feb 16 00:00:17 2011 | |
| Continue creating array? y | |
| mdadm: array /dev/md2 started. | |
| pi@raspberrypi:~ $ sudo mdadm --examine /dev/sda5 | |
| /dev/sda5: | |
| Magic : a92b4efc | |
| Version : 0.90.00 | |
| UUID : ba694bf5:d260853b:fe2970c7:3724fbef (local to host raspberrypi) | |
| Creation Time : Tue Jul 11 11:24:52 2017 | |
| Raid Level : raid1 | |
| Used Dev Size : -1369434496 (2790.01 GiB 2995.75 GB) | |
| Array Size : 2925532800 (2790.01 GiB 2995.75 GB) | |
| Raid Devices : 2 | |
| Total Devices : 2 | |
| Preferred Minor : 2 | |
| Update Time : Tue Jul 11 11:24:52 2017 | |
| State : active | |
| Internal Bitmap : present | |
| Active Devices : 1 | |
| Working Devices : 1 | |
| Failed Devices : 1 | |
| Spare Devices : 0 | |
| Checksum : cc6d0ff9 - correct | |
| Events : 1 | |
| Number Major Minor RaidDevice State | |
| this 0 8 5 0 active sync /dev/sda5 | |
| 0 0 8 5 0 active sync /dev/sda5 | |
| 1 0 0 0 0 spare | |
| pi@raspberrypi:~ $ sudo mdadm -A -R /dev/md2 /dev/sda5 | |
| mdadm: /dev/md2 has been started with 1 drive (out of 2). | |
| pi@raspberrypi:~ $ sudo mdadm --examine /dev/sda5 | |
| /dev/sda5: | |
| Magic : a92b4efc | |
| Version : 0.90.00 | |
| UUID : ba694bf5:d260853b:fe2970c7:3724fbef (local to host raspberrypi) | |
| Creation Time : Tue Jul 11 11:24:52 2017 | |
| Raid Level : raid1 | |
| Used Dev Size : -1369434496 (2790.01 GiB 2995.75 GB) | |
| Array Size : 2925532800 (2790.01 GiB 2995.75 GB) | |
| Raid Devices : 2 | |
| Total Devices : 2 | |
| Preferred Minor : 2 | |
| Update Time : Tue Jul 11 11:24:52 2017 | |
| State : active | |
| Internal Bitmap : present | |
| Active Devices : 1 | |
| Working Devices : 1 | |
| Failed Devices : 1 | |
| Spare Devices : 0 | |
| Checksum : cc6d0ff9 - correct | |
| Events : 1 | |
| Number Major Minor RaidDevice State | |
| this 0 8 5 0 active sync /dev/sda5 | |
| 0 0 8 5 0 active sync /dev/sda5 | |
| 1 0 0 0 0 spare |
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