Document that SI unit suffixes are supported for -b and -s options
of add verb. Mention about maximum size limit for "freebsd-boot" partition. It should be smaller than 545 KB (hardcoded in pmbr). Show usage of SI unit suffixes in example. Approved by: mav (mentor) MFC after: 1 week
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=210408
@ -24,7 +24,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd June 3, 2010
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.Dd July 23, 2010
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.Dt GPART 8
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.Os
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.Sh NAME
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@ -84,9 +84,9 @@ utility:
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.\" ==== ADD ====
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.Nm
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.Cm add
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.Fl b Ar start
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.Fl s Ar size
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.Fl t Ar type
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.Op Fl b Ar start
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.Op Fl s Ar size
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.Op Fl i Ar index
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.Op Fl l Ar label
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.Op Fl f Ar flags
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@ -171,9 +171,13 @@ Add a new partition to the partitioning scheme given by
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The partition begins on the logical block address given by the
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.Fl b Ar start
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option.
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Its size is expressed in logical block numbers and given by the
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Its size is given by the
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.Fl s Ar size
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option.
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option. SI unit suffixes are allowed. One or both
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.Fl b
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and
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.Fl s
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options can be ommitted. If so they are automatically calculated.
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The type of the partition is given by the
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.Fl t Ar type
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option.
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@ -542,7 +546,7 @@ from a
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partition, and install bootstrap code into it.
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This partition must be larger than
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.Pa /boot/gptboot ,
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or the GPT boot you are planning to write.
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or the GPT boot you are planning to write, but smaller than 545 KB.
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A size of 15 blocks (7680 bytes) would be sufficient for
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booting from UFS but let's use 128 blocks (64 KB) here in
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this example, in order to reserve some space for potential
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@ -569,7 +573,7 @@ Create a 512MB-sized
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.Cm freebsd-ufs
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partition that would contain UFS where the system boots from.
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.Bd -literal -offset indent
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/sbin/gpart add -b 0 -s 1048576 -t freebsd-ufs da0
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/sbin/gpart add -s 512M -t freebsd-ufs da0
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.Ed
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.Pp
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After having created all required partitions, embed bootstrap code into them.
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