Re: [libvirt] potential bug in qemu snapshots
On 23/12/2010, at 5:35 AM, Eric Blake wrote:
<snip>
Should we refuse to make snapshots if we don't detect the GNU
extension
of 'dd iflag=fullblock'? Probably safe to do on GNU/Linux machines, but
I'm wondering if it will have negative effects on BSD machines where GNU
coreutils is not installed.
As a thought, that option isn't known to the dd supplied with OSX 10.6.5:
$ dd if=/dev/zero of=foo bs=1024 count=1
1+0 records in
1+0 records out
1024 bytes transferred in 0.000041 secs (24970740 bytes/sec)
$ rm foo
$ dd if=/dev/zero of=foo bs=1024 count=1 iflag=fullblock
dd: unknown operand iflag
$