"J. R. Okajima": > To see the current branches, refer to /sys/fs/aufs/si_*/*.
Also you may want to try the module parameter called 'brs'. (from aufs manual) ---------------------------------------- Module Parameters brs=1 | 0 Specifies to use the branch path data file under sysfs or not. If the number of your branches is large or their path is long and you meet the limitation of mount (8) ro /etc/mtab, you need to enable CONFIG_SYSFS and set aufs module parameter brs=1. When this parameter is set as 1, aufs does not show ’br:’ (or dirs=) mount option through /proc/ mounts (and /etc/mtab). So you can keep yourself from the page limitation of mount(8) or /etc/ mtab. Aufs shows branch paths through <sysfs>/fs/aufs/si_XXX/brNNN. Actually the file under sysfs has also a size limitation, but I don't think it is harmful. There is one more side effect in setting 1 to this parameter. If you rename your branch, the branch path written in /etc/mtab will be obsoleted and the future remount will meet some error due to the unmatched parameters (Remember that mount(8) may take the options from /etc/mtab and pass them to the systemcall). If you set 1, /etc/mtab will not hold the branch path and you will not meet such trouble. On the other hand, the entries for the branch path under sysfs are generated dynamically. So it must not be obsoleted. But I don't think users want to rename branches so often. If CONFIG_SYSFS is disable, this parameter is always set to 0. ---------------------------------------- J. R. Okajima
