enable ACL on a filesystem

[Nabil Boussetta]

how to make filesystem supporting ACLs

[Muthukumar_5]

You have to create JFS for making ACL's on files.

hth.

[VEL_1]

By default, mount command with -o provide the ACL support.

[Muthukumar_5]

you can also enable acl on hfs file systems also using fgetacl() call.

/stand/vmunix is using hfs fs. It is acl is as,

# lsacl -l /stand/vmunix
/stand/vmunix:
rwx root.%
r-x %.sys
r-x %.%
# ls -l /stand/vmunix
-rwxr-xr-x 1 root sys 29939416 Apr 13 19:22 /stand/vmunix

hth.

[Alessandro Pilati]

Nabil,
see man pages of
aclv
acl
chacl
lsacl
getacl

Rgds,
Alex

[Muthukumar_5]

ACL support is enabled for HFS and JFS file system by default. Refer: man 2 access

hth.

[RAC_1]

for hfs,

lsacl
chacl

for vxfs (min version should be 4)
getacl
setacl

[Florian Heigl (new acc)]

You need at least version 3 vxfs for ACLs to work (at least that's what I remeber)

[Matthew_50]

first of all, file system layout must be jfs 4.0 to support jfs acl
example as following

# vxupgrade /db01
/db01: vxfs file system version 3 layout

# fstyp -v /dev/vgdb/rlvol1
vxfs
version: 3 -> means current file system version is 3 layout
f_bsize: 8192
f_frsize: 1024
f_blocks: 20480
f_bfree: 19366
f_bavail: 18156
.
.
.
.

we need to upgrade the /db01 file system layout to version 4
# vxupgrade -n 4 /db01

* beware, you can't recover the file system layout from 4 to 3, which upgrade from 3