From: Tomáš Golembiovský <tgolembi(a)redhat.com&gt; Do not print warning for 'sr' devices when converting fstab. Not all systems create the /dev/cdrom symlink for SCSI CD-ROM devices. Moreover, on systems with multiple CD-ROMs, having entries for /dev/sr* devices may be inevitable. RWMJ: Use String.is_prefix instead of String.find, to more accurately match on the device name. Signed-off-by: Tomáš Golembiovský <tgolembi(a)redhat.com&gt; Signed-off-by: Richard W.M. Jones <rjones(a)redhat.com&gt; --- v2v/convert_linux.ml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml index 4b1ce99..f9aa334 100644 --- a/v2v/convert_linux.ml +++ b/v2v/convert_linux.ml @@ -1329,8 +1329,10 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps = let replace device = try List.assoc device map with Not_found -> - if String.find device "md" = -1 && String.find device "fd" = -1 && - device <> "cdrom" then + if not (String.is_prefix device "md") && + not (String.is_prefix device "fd") && + not (String.is_prefix device "sr") && + device <> "cdrom" then warning (f_"%s references unknown device \"%s\". You may have to fix this entry manually after conversion.") path device; device -- 2.7.4