ZFS to support chflags?
anderson at freebsd.org
Thu Apr 12 17:30:59 UTC 2007
On 04/12/07 12:28, Kris Kennaway wrote:
> On Thu, Apr 12, 2007 at 11:42:37AM +0100, Robert Watson wrote:
>> On Thu, 12 Apr 2007, Bernd Walter wrote:
>>> On Wed, Apr 11, 2007 at 08:04:03PM -0400, John Nielsen wrote:
>>>> I just moved /usr over to a zpool on my -CURRENT system. Performance and
>>>> stability are both excellent so far. (Thanks Pawel!) However I noticed
>>>> that setting FS flags on files with chflags is not supported. Would it be
>>>> feasible to add support for flags on ZFS, and if so are there plans to do
>>>> If not (and/or in the meantime), are there any places in the base system
>>>> where flags are required for normal operation? (/var maybe?)
>>> Some binaries have such flags set, but it is not required, otherwise
>>> diskless NFS wouldn't work. I often see installworld warnings about beeing
>>> unable to set extended flags on ld.so and others on my diskless boxes.
>> I'm not a big fan of setting these flags -- I fairly frequently run into
>> problems when I installworld an NFS root on the NFS host, then try to work
>> with it over NFS from the NFS-booted system, as the flags can't be removed
>> via NFS. They don't offer a security benefit as-installed, and perhaps
>> offer a benefit with respect to preventing people from shooting themselves
>> in the foot (or perhaps not).
> Yeah, historical intentions notwithstanding, the real benefit of schg
> flags on critical pieces is anti foot-shooting. e.g. you really don't
> want to accidentally delete ld-elf.so.1 or libc.so.7 or init.
> You can usually recover from this, but it can mess up your whole day
Yea, all I have to say is: thank you to <SOMEBODY> for /rescue!!!
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