A number of older file systems won't work past 2038, including ext3, reiser3 and xfs4[1]. You'll probably still be able to read them fine, just not write new fi

A number of older file systems won't work past 2038, including ext3, reiser3 and xfs4[1]. You'll probably still be able to read them fine, just not write new files beyond that date, but it might be best to migrate any backups to a newer filesystem before then just in case, and certainly migrate any live systems that are still using them. [1] https://lwn.net/Articles/886708/ https://lwn.net/Articles/886708/