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SubjectRe: Linux should not set the "PnP OS" boot flag
> Yes (if you mean: clears the "Booting" flag).  This is a different
> flag from the PnP-OS flag. The PnP-OS flag is bit 0; the "Booting"
> flag is bit 1. So this is a separate issue.

Its very much the same issue. Only a marked successful PnP boot counts
for anything

> But look at the code (following). The code DOES NOT clear the "Booting"
> flag. It ONLY sets the PnP-OS flag. Not only that: when it does so
> it fails to change bit 7 in order to preserve odd parity, as the spec
> requires.

sbf_write computes parity
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