convertquota(8) — Linux manual page


CONVERTQUOTA(8)          System Manager's Manual         CONVERTQUOTA(8)

NAME         top

       convertquota - convert quota from old file format to new one

SYNOPSIS         top

       convertquota [ -ug ] -e filesystem

       convertquota [ -ug ] -f oldformat,newformat filesystem

DESCRIPTION         top

       convertquota converts old quota files quota.user and
       to files aquota.user and in new format currently
       used by 2.4.0-ac? and newer or by SuSE or Red Hat Linux 2.4
       kernels on filesystem.

       New file format allows using quotas for 32-bit uids / gids,
       setting quotas for root, accounting used space in bytes (and so
       allowing use of quotas in ReiserFS) and it is also architecture
       independent. This format introduces Radix Tree (a simple form of
       tree structure) to quota file.

OPTIONS         top

       -u, --user
              convert user quota file. This is the default.

       -g, --group
              convert group quota file.

       -f, --convert-format oldformat,newformat
              convert quota file from oldformat to newformat.

       -e, --convert-endian
              convert vfsv0 file format from big endian to little endian
              (old kernels had a bug and did not store quota files in
              little endian format).

       -V, --version
              print version information.

FILES         top

              new user quota file
              new group quota file

SEE ALSO         top

       quota(1), setquota(8), edquota(8), quotacheck(8), quotaon(8),

AUTHOR         top

       Jan Kara <>

COLOPHON         top

       This page is part of the quota (Linux Diskquota Tools) project.
       Information about the project can be found at [unknown -- if you
       know, please contact] It is not known how to
       report bugs for this man page; if you know, please send a mail to  This page was obtained from the project's
       upstream Git repository
       ⟨git://⟩ on
       2023-12-22.  (At that time, the date of the most recent commit
       that was found in the repository was 2022-12-06.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to

4th Berkeley Distribution    Fri Aug 20 1999             CONVERTQUOTA(8)

Pages that refer to this page: quotacheck(8)