Hi Andrew, Andrew Patterson <andrew.patterson@hp.com> (2014-08-29): > Package: grub-installer > Version: 1.95 > Severity: whishlist > Tags: jessie, patch > > I am trying to create a completely automated preseed.cfg file for > a jessie installation that will work on several systems. In my > case, both QEMU VMs and physical servers. Both of these types of > systems have only one possible boot device but have different > boot device files, e,g, /dev/vda and /dev/sda. The normal way to > do this would be to use "grub-installer/bootdev string" config option. > This option does not work here because we need to specify the exact > device -- /dev/sda or /dev/vda instead of the "only" device. > > If I don't use "grub-installer/bootdev", the installer will ask > me whether I want to install on the device found or "nothing", so > my automation fails. > > I developed a patch that lets you use the string "default" for > grub-installer/bootdev. This option always picks the appropriate > device. Example: > > grub-installer/bootdev string default thanks for the report and the patch. I know Samuel has spent some time investigating that lately, so I'm adding it to Cc (see also: #712907). Hopefully he'll have some comments to share about this issue. Mraw, KiBi. > Here is the patch: > > Author: Andrew Patterson <andrew.patterson@hp.com> > Date: Thu Aug 14 14:00:47 2014 -0600 > > Using "default" for bootdev will install grub on default disk. > > The grub-install/bootdev configuration value is used in a > file to automatically select the grub install device. It works > fine if the disk is always the same, e.g., /dev/sda, but does > not work well when using the same preseed file on systems withi > different types of disks, e.g., /dev/vda and /dev/hda. > > Setting grub-installer/bootdev to "default" will automatically > select the first disk for grug installation. It works as long > as there is only one choice of disk to install on and thus > avoids the "Please select /dev/... or none" question. > > diff --git a/grub-installer b/grub-installer > index 50155a9..12f9a31 100755 > --- a/grub-installer > +++ b/grub-installer > @@ -678,7 +678,11 @@ while : ; do > log "q='$q' state='$state' defbd='$default_bootdev' bd='$bootdev'" > db_fget grub-installer/bootdev seen > if [ "$RET" = true ] && db_get grub-installer/bootdev && [ "$RET" ] ; then > - bootdev=$RET > + if [ "$RET" = "default" ]; then > + bootdev=$default_bootdev > + else > + bootdev=$RET > + fi > break > elif [ "$state" = 1 ]; then > db_input high $q || true
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