Bug#944676: mdadm does not support raid0 layouts
Source: mdadm
Version: 4.1-3
Severity: important
Patches recently landed upstream to support raid0 layouts. These
layouts are new and important because the upstream kernel accidentally
started using a new layout for multi-zone devices starting in
3.14. To avoid corruption, the 5.4 kernel (and many stable kernels) will
now refuse to assemble existing arrays unless they have explicitly defined
which layout they are using. While a default layout can be specified
via the kernel command line - or a module parameter - an updated mdadm
is required to set this value in the array itself.
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