shithub: riscv

Download patch

ref: 677dd90b029cc7e11020af220bbcdd2f6028db45
parent: 49cd794fbdd661e8035eee41d053fedc30a5e165
author: cinap_lenrek <[email protected]>
date: Fri Jul 8 12:19:15 EDT 2016

disk/prep: if no 9fat, reserve space for plan9 partition table in autopart (thanks Shamar)

usually, the plan9 partition table is contained in
the first 9fat partition after the pbs/fat header,
but when no 9fat partition is requested, we have
to make sure partitions wont overlap the partition
table (start at sector offset >= 2).

--- a/sys/src/cmd/disk/prep/prep.c

+++ b/sys/src/cmd/disk/prep/prep.c

@@ -432,6 +432,11 @@

 	}

 	s = 0;

+	if(autox[0].alloc == 0){

+		/* if no 9fat, reserve space for plan9 partition table */ 

+		s = 2;

+		if((s + pa) % stride) s += stride - (s + pa) % stride;

+	}

 	secs = edit->disk->secs;

 	for(i=0; i<nelem(autox); i++){

 		if(autox[i].alloc == 0)