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Document the "slice" syntax.
Prodded by: ambrisko
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=92226
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@ -112,8 +112,9 @@ may also be specified as the last segment of a path, in which case
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the listing will be of the relevant subdirectory.)
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.Pp
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.It Xo
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.Ar bios_drive : Ns Ar interface Ns Po
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.Ar unit , Ns Ar part Pc
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.Sm off
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.Ar bios_drive : interface ( unit , Oo Ar slice , Oc Ar part )
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.Sm on
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.Ar filename
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.Op Fl aCcDdghmPprsv
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.Xc
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@ -143,7 +144,7 @@ SCSI disk on any supported SCSI controller
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.It Ar unit
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The unit number of the drive on the interface being used.
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0 for the first drive, 1 for the second drive, etc.
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.It Ar part
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.It Oo Ar slice , Oc Ns Ar part
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The partition letter inside the
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.Bx
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portion of the disk. See
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@ -152,10 +153,20 @@ By convention, only partition
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.Ql a
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contains a bootable image. If sliced disks are used
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.Pq Dq fdisk partitions ,
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any slice can be booted from, with the default being the active slice
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any
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.Ar slice
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(1 for the first slice, 2 for the second slice, etc.\&)
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can be booted from, with the default (if not specified) being the active slice
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or, otherwise, the first
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.Fx
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slice.
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If
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.Ar slice
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is specified as 0, the first
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.Fx
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slice (also known as
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.Dq compatibility
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slice) is booted from.
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.It Ar filename
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The pathname of the file to boot (relative to the root directory
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on the specified partition). Defaults to
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