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9boot(8): update manual to reflect efi loader search order changes

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the efi loader now looks for plan9.ini and the kernel in the ESP
first, before looking elsewhere.
This commit is contained in:
mischief 2020-11-21 14:55:33 -08:00
parent 486ce60546
commit d1dc287210
1 changed files with 15 additions and 3 deletions
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18
sys/man/8/9boot
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@ -47,7 +47,7 @@ will end the console and attempt booting the kernel.
.SS
There are many ways to boot a PC so
.IR 9boot
was split into a number of distinct programs one for each boot
was split into a number of distinct programs, one for each boot
method.
.SH FAT BOOTING
When booting Plan 9 from a harddisk or USB pen drive, a
@ -143,8 +143,18 @@ is discovered and
configuration is read from it in the same way as
with the BIOS-based
.I 9boot*
loaders.
loaders. If the EFI loader was executed from a
.B FAT
partition, it will first search for
.IR plan9.ini (8)
in the same
.B FAT
filesystem that it was loaded from, and if not found, will search for
.IR plan9.ini (8)
in any other partition in an implementation-defined order. The kernel
is always loaded from the same partition that
.IR plan9.ini (8)
is read from.
.SH FILES
.B /386/pbs
.br
@ -171,6 +181,8 @@ loaders.
.IR mk9660 (8),
.IR dhcpd (8),
.IR ndb (6)
.br
.I https://uefi.org
.SH HISTORY
9boot first appeared in 9front (April, 2011).
EFI support first appeared in 9front (Oct, 2014).