keymapchars: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/share/gfxboot/bin/keymapchars - from package: gfxboot-dev

You may install the required package with command apt-get install {package}

Error in other languages:
keymapchars: bevel nie gevind nie
keymapchars: comandă negăsită
keymapchars: comando não encontrado
keymapchars: commande introuvable
keymapchars: command not found
keymapchars: käsku ei ole
keymapchars: không tìm thấy lệnh
keymapchars: komanda nerasta
keymapchars: Kommando nicht gefunden.
keymapchars: kommandot finns inte
keymapchars: komut yok
keymapchars: nie znaleziono polecenia
keymapchars: níor aimsíodh an t-ordú
keymapchars: no se encontró la orden
keymapchars: no s'ha trobat l'ordre
keymapchars: opdracht niet gevonden
keymapchars: parancs nem található
keymapchars: perintah tidak ditemukan
keymapchars: príkaz nenájdený
keymapchars: příkaz nenalezen
keymapchars: команда не найдена
keymapchars: командата не е открита
keymapchars: 命令找不到
keymapchars: コマンドが見つかりません