README.md in getch-0.0.8 vs README.md in getch-0.0.9

@@ -3,12 +3,13 @@
 
 ## Description
 Actually, Getch support only the [AMD64 handbook](https://wiki.gentoo.org/wiki/Handbook:AMD64) and only with the last `stage3-amd64-systemd`.  
 It also require a disk (only one for now) with a minimum of 20G.  
 
-Filesystem supported by Getch are: (the list will evolve...)
-+ ext4 with GRUB2 for BIOS based system and systemd-boot for UEFI systems.
+BIOS system will use Grub2 and UEFI, systemd-boot. Filesystem supported by Getch are for now:
++ ext4
++ lvm
 
 I would also add disk encryption soon.
 
 The ISO images i was able to test and that works:
 + [Archlinux](https://www.archlinux.org/download/)
@@ -31,16 +32,21 @@
     $ getch -h
 
 ## Examples
 For a french user:
 
-    # getch --username ninja --zoneinfo "Europe/Paris" --language fr_FR --keyboard fr
+    # getch --username ninja --zoneinfo "Europe/Paris" --language fr_FR --keymap fr
 
 After an install by Getch, take a look on the [wiki](https://github.com/szorfein/getch/wiki).
 
 Install Gentoo on LVM:
 
     # getch --format lvm --disk sda
+
+## Troubleshooting
+
+#### LVM
+Unless than your older LVM volume group is named `vg0`, `getch` may fail to partition your disk, you have to clean your device before proceed with `vgremove` and `pvremove`.
 
 ## Issues
 If need more support for your hardware (network, sound card, ...), you can submit a [new issue](https://github.com/szorfein/getch/issues/new) and post the output of the following command:
 + lspci
 + lsmod