die "unable to update /etc/default/grub\n";
if ($use_zfs) {
- syscmd ("sed -i -e 's/^GRUB_CMDLINE_LINUX_DEFAULT.*/GRUB_CMDLINE_LINUX_DEFAULT=\"root=ZFS=$zfspoolname\\/ROOT\\/pve-1 boot=zfs\"/' $targetdir/etc/default/grub") == 0 ||
+ syscmd ("sed -i -e 's/^GRUB_CMDLINE_LINUX=.*/GRUB_CMDLINE_LINUX=\"root=ZFS=$zfspoolname\\/ROOT\\/pve-1 boot=zfs\"/' $targetdir/etc/default/grub") == 0 ||
die "unable to update /etc/default/grub\n";
}