fsck.ocfs2: 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.ocfs2 - from package: ocfs2-tools

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

Error in other languages:
fsck.ocfs2: bevel nie gevind nie
fsck.ocfs2: comandă negăsită
fsck.ocfs2: comando não encontrado
fsck.ocfs2: commande introuvable
fsck.ocfs2: command not found
fsck.ocfs2: käsku ei ole
fsck.ocfs2: không tìm thấy lệnh
fsck.ocfs2: komanda nerasta
fsck.ocfs2: Kommando nicht gefunden.
fsck.ocfs2: kommandot finns inte
fsck.ocfs2: komut yok
fsck.ocfs2: nie znaleziono polecenia
fsck.ocfs2: níor aimsíodh an t-ordú
fsck.ocfs2: no se encontró la orden
fsck.ocfs2: no s'ha trobat l'ordre
fsck.ocfs2: opdracht niet gevonden
fsck.ocfs2: parancs nem található
fsck.ocfs2: perintah tidak ditemukan
fsck.ocfs2: príkaz nenájdený
fsck.ocfs2: příkaz nenalezen
fsck.ocfs2: команда не найдена
fsck.ocfs2: командата не е открита
fsck.ocfs2: 命令找不到
fsck.ocfs2: コマンドが見つかりません