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If we have no MBR, we need to allow the poor guy to write one...

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This commit is contained in:
Poul-Henning Kamp 1994-11-08 10:35:52 +00:00
parent 46c134684c
commit 9daafd5125
1 changed files with 7 additions and 3 deletions
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10
sys/i386/isa/readMBR.c
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@ -15,7 +15,7 @@
* written by julian elischer (julian@tfs.com)
*
* @(#)readMBR.c 8.5 (tfs) 1/21/94
* $Id: readMBR.c,v 1.1 1994/10/27 20:44:50 jkh Exp $
* $Id: readMBR.c,v 1.2 1994/10/28 12:41:55 jkh Exp $
*/
#include <sys/param.h>
@ -101,8 +101,11 @@ readMBRtolabel(dev, strat, lp, dp, cyl)
*/
if ((*(bp->b_un.b_addr + 510) != (char) 0x55)
||(*(bp->b_un.b_addr + 511) != (char) 0xaa)) {
msg = "Disk has no Fdisk partitions";
goto bad;
printf("disk doesn't have an MBR\n");
if(dp)
bzero(bp->b_un.b_addr + DOSPARTOFF,
NDOSPART * sizeof(*dp));
goto hrumpf;
}
if(dp) { /* if they asked for a copy, give it to them */
@ -220,6 +223,7 @@ readMBRtolabel(dev, strat, lp, dp, cyl)
}
lp->d_npartitions = 8;
}
hrumpf:
bp->b_flags = B_INVAL | B_AGE;
brelse(bp);
return 0;