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Document removing configuration for mdadm raid device

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Joey Hafner 2024-02-29 19:52:54 -08:00
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- If you see an error at the beginning of `dmesg` about `mdadm: error opening /dev/md<something>: No such file or directory`, you probably have a zombie array.
- Mdadm devices are read at boot from `/etc/mdadm/mdadm.conf` and then mounted to the filesystem at `/etc/fstab`.
- If you update `/etc/mdadm/mdadm.conf`, also inform the initramfs of the updates with `update-initramfs -u`.