On 05/09/2017 01:17 PM, Eric Blake wrote: > On 05/09/2017 01:09 PM, John Snow wrote: >> Or, rather, force the open of a backing image if one was specified >> for creation. Using a similar -unsafe option as rebase, allow qemu-img >> to ignore the backing file validation if possible. >> >> +++ b/qemu-img.c >> @@ -145,9 +145,11 @@ static void QEMU_NORETURN help(void) >> " 'snapshot_id_or_name' is deprecated, use 'snapshot_param'\n" >> " instead\n" >> " '-c' indicates that target image must be compressed (qcow format only)\n" >> - " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" >> - " match exactly. The image doesn't need a working backing file before\n" >> - " rebasing in this case (useful for renaming the backing file)\n" >> + " '-u' allows unsafe backing chains. For rebasing, it is assumed that old and new\n" >> + " backing file match exactly. The image doesn't need a working backing file\n" >> + " before rebasing in this case (useful for renaming the backing file)\n" Also, a '.' to end this sentence would be nice. >> + " For image creation, allow creating without attempting to" > > Missing \n > > With that fixed, > Reviewed-by: Eric Blake > -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org