fsck.reiserfs: 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:

/sbin/fsck.reiserfs - from package: reiserfsprogs

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

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