: How do we fix this problem? I keeps from from
: ``dd if=/dev/da1 of=/dev/da2'' ?? I was very peeved at having to put the
: disks on a Solaris box to do such a normal Unix task.
:
:
:this will fix your dd
:
:Index: dd.c
:===
:RCS file: /home/ncvs/src/bin/dd/dd.c,v
:retrieving revision 1.27
:diff -u -r1.27 dd.c
:--- dd.c 1999/10/03 18:49:51 1.27
:+++ dd.c 1999/12/05 23:17:16
:@@ -216,6 +216,16 @@
: if (ioctl(io-fd, FIODTYPE, type) == -1) {
: err(1, "%s", io-name);
: } else {
:+if (type D_DISK) {
:+static int one = 1;
:+#ifndef DIOCWLABEL
:+#define DIOCWLABEL _IOW('d', 109, int)
:+#endif
:+fprintf(stderr, "is a disk\n");
:+if (ioctl(io-fd, DIOCWLABEL, one) 0) {
:+perror("DIOCWLABEL");
:+}
:+}
: if (type D_TAPE)
: io-flags |= ISTAPE;
: else if (type (D_DISK | D_MEM))
:
Woa, timeout!
dd if=/dev/da1 of=/dev/da2 had better work - the label area should not
be in any way write protected when you use the non-partition device.
If you were to use /dev/da2c, *then* it would be reasonable to
write-protect the label area. But if you use /dev/da2 it is not.
We should not go around hacking dd when the problem is in the kernel.
-Matt
Matthew Dillon
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