1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
* Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
* Email: <neilb@cse.unsw.edu.au>
* Paper: Neil Brown
* School of Computer Science and Engineering
* The University of New South Wales
* Sydney, 2052
* Australia
*
* Added by Dale Stephenson
* steph@snapserver.com
*/
#include "mdadm.h"
#include "md_u.h"
#include "md_p.h"
int Kill(char *dev, int force)
{
/*
* Nothing fancy about Kill. It just zeroes out a superblock
* Definitely not safe.
*/
mdp_super_t super;
int fd, rv = 0;
fd = open(dev, O_RDWR);
if (fd < 0) {
fprintf(stderr, Name ": Couldn't open %s for write - not zeroing\n",
dev);
return 1;
}
rv = load_super(fd, &super);
if (force && rv >= 5)
rv = 0; /* ignore bad data in superblock */
switch(rv) {
case 1:
fprintf(stderr, Name ": cannot file device size for %s: %s\n",
dev, strerror(errno));
break;
case 2:
fprintf(stderr, Name ": %s is too small for md.\n", dev);
break;
case 3:
case 4:
fprintf(stderr, Name ": cannot access superblock on %s.\n", dev);
break;
case 5:
case 6:
fprintf(stderr, Name ": %s does not appear to have an MD superblock.\n", dev);
break;
}
if (!rv) {
memset(&super, 0, sizeof(super));
if (store_super(fd, &super)) {
fprintf(stderr, Name ": Could not zero superblock on %s\n",
dev);
rv = 1;
}
}
close(fd);
return rv;
}
|
