2 ms·
Well, there's man tune2fs: -m reserved-blocks-percentage Set the percentage of the filesystem which may only be allocated by privileged processes
by db48x 9y ago
Well, there's man tune2fs:
-m reserved-blocks-percentage
Set the percentage of the filesystem which may only be
allocated by privileged processes. Reserving some number of
filesystem blocks for use by privi‐ leged processes is done to
avoid filesystem fragmentation, and to allow system daemons,
such as syslogd(8), to continue to function correctly after
non- privileged processes are prevented from writing to the
filesystem. Normally, the default percentage of reserved
blocks is 5%.
-g group
Set the group which can use the reserved filesystem blocks.
The group parameter can be a numerical gid or a group name. If
a group name is given, it is converted to a numerical gid
before it is stored in the superblock.
- teddyh 9y agoI meant this bit: > when a process running as root runs df (or any similar command or syscall), then it sees that capacity as available. I have never seen that. I have only ever seen the “real” available space being shown by tune2fs, not df or anything similar, which have always shown the space available after subtracting the reserved space.