currently reading the RHEL deployment guide and i have a short question about ACLs that i can test on my centos 5.5 box.
here:
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Deployment...
the manual clearly claims that, in order to use ACLs on a filesystem, that filesystem must be mounted with the "acl" mount option, and even shows a sample /etc/fstab entry that represents that.
however, i just verified that i can use setfacl to give my non-root account read access to /etc/shadow so, clearly(?), the root filesystem supports ACLs, but the mount entry for that filesystem in /etc/fstab reads only "defaults" and, as i read it in the man page for "mount", the "defaults" option is not listed as including the "acl" option.
can someone clarify this? is there a command that shows whether a filesystem is currently acl-enabled? and is the mount man page simply incomplete in that respect? thanks.
rday
can someone clarify this? is there a command that shows whether a filesystem is currently acl-enabled? and is the mount man page simply incomplete in that respect? thanks.
tune2fs -l /dev/[hda1,sda1]
The values between [ ] are an example only. Replace, of course, with your own storage device.
Look at "Filesystem features" and "Default mount options".
On Thu, 16 Sep 2010, Miguel Medalha wrote:
can someone clarify this? is there a command that shows whether afilesystem is currently acl-enabled? and is the mount man page simply incomplete in that respect? thanks.
tune2fs -l /dev/[hda1,sda1]
The values between [ ] are an example only. Replace, of course, with your own storage device.
Look at "Filesystem features" and "Default mount options".
ah, excellent, i can see that "default mount options" includes "acl", and i'm going to guess that that's a kernel config option that's selected on a per-filesystem type basis. thanks.
rday
On 9/16/2010 10:09 AM, Robert P. J. Day wrote:
On Thu, 16 Sep 2010, Miguel Medalha wrote:
can someone clarify this? is there a command that shows whether afilesystem is currently acl-enabled? and is the mount man page simply incomplete in that respect? thanks.
tune2fs -l /dev/[hda1,sda1]
The values between [ ] are an example only. Replace, of course, with your own storage device.
Look at "Filesystem features" and "Default mount options".
ah, excellent, i can see that "default mount options" includes "acl", and i'm going to guess that that's a kernel config option that's selected on a per-filesystem type basis. thanks.
I'm not sure what fs mount options are available through kernel config, but you can set/unset many fs options/features with tune2fs. Check the manpage.
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Miguel Medalha -
Robert P. J. Day -
Toby Bluhm