diff options
Diffstat (limited to 'perl/lib/Sys')
| -rw-r--r-- | perl/lib/Sys/Guestfs.pm | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/perl/lib/Sys/Guestfs.pm b/perl/lib/Sys/Guestfs.pm index 083a0172..cd26bedc 100644 --- a/perl/lib/Sys/Guestfs.pm +++ b/perl/lib/Sys/Guestfs.pm @@ -115,7 +115,8 @@ for whatever operations you want to perform (ie. read access if you just want to read the image or write access if you want to modify the image). -This is equivalent to the qemu parameter C<-drive file=filename,cache=off>. +This is equivalent to the qemu parameter +C<-drive file=filename,cache=off,if=virtio>. Note that this call checks for the existence of C<filename>. This stops you from specifying other types of drive which are supported @@ -134,7 +135,7 @@ handle is closed. We don't currently have any method to enable changes to be committed, although qemu can support this. This is equivalent to the qemu parameter -C<-drive file=filename,snapshot=on>. +C<-drive file=filename,snapshot=on,if=virtio>. Note that this call checks for the existence of C<filename>. This stops you from specifying other types of drive which are supported @@ -1480,6 +1481,10 @@ with permissions like "-rw-r--r--" or "-rwxr-xr-x", and C<002> which creates new files with permissions like "-rw-rw-r--" or "-rwxrwxr-x". +The default umask is C<022>. This is important because it +means that directories and device nodes will be created with +C<0644> or C<0755> mode even if you specify C<0777>. + See also L<umask(2)>, C<$h-E<gt>mknod>, C<$h-E<gt>mkdir>. This call returns the previous umask. |