CentOS - Dec 2016 - Can't delete or move /home on 7.3 install

Jon LaBadie wrote:
> On Thu, Dec 15, 2016 at 04:10:07AM -0600, geo.inbox.ignored wrote:
>> On 12/15/2016 01:47 AM, Gianluca Cecchi wrote:
>> > On Thu, Dec 15, 2016 at 2:49 AM, Glenn E. Bailey III <
>> > replicant at dallaslamers.org> wrote:
>> >
>> >> Tried this in both AWS and GCE as I though it may be a
specific cloud
>> >> vendor issue. SELinux is disabled, lsof | grep home shows
nothing,
>> >> lsattr /home shows nothing. Simply get "Device or
resource busy."
>> >>
>> >> Works just find on 7.2 so I'm kinda at a loss. Scanned
over the RHEL
>> >> release notes and didn't see anything. Anyone else have
this issue?
>> We
>> >> move our /home to another mount point and symlink /home to it
..
>> >>
>> >>
>> > Do you have access to the console, so that you can try to do the
move
>> while
>> > in single user mode?
>> >
>> }}
>>
>> that is one possibility.
>>
>> even greater is op is a 'user', not 'root'.
<snip>

Here's a question to OP: how did you log into the system? If as *user*,
rather than as root, the filesystem is busy because you're logged on, and
in it.

Missed some of the posts overnight - has anyone asked for the o/p of df -h?

    mark

I was most def root. /home isn't mounted as a separate filesystem.
It's not even tmpfs or btrfs. I was able to boot into single user mode
to remove it, but this isn't possible in an automated fashion. I may
just have to start building my own images.

Still curious to know why I can't rename or move it. Anyone else try
this on a stock 7.3 build?

On Thu, Dec 15, 2016 at 8:42 AM,  <m.roth at 5-cent.us>
wrote:
> Jon LaBadie wrote:
>> On Thu, Dec 15, 2016 at 04:10:07AM -0600, geo.inbox.ignored wrote:
>>> On 12/15/2016 01:47 AM, Gianluca Cecchi wrote:
>>> > On Thu, Dec 15, 2016 at 2:49 AM, Glenn E. Bailey III <
>>> > replicant at dallaslamers.org> wrote:
>>> >
>>> >> Tried this in both AWS and GCE as I though it may be a
specific cloud
>>> >> vendor issue. SELinux is disabled, lsof | grep home shows
nothing,
>>> >> lsattr /home shows nothing. Simply get "Device or
resource busy."
>>> >>
>>> >> Works just find on 7.2 so I'm kinda at a loss. Scanned
over the RHEL
>>> >> release notes and didn't see anything. Anyone else
have this issue?
>>> We
>>> >> move our /home to another mount point and symlink /home to
it ..
>>> >>
>>> >>
>>> > Do you have access to the console, so that you can try to do
the move
>>> while
>>> > in single user mode?
>>> >
>>> }}
>>>
>>> that is one possibility.
>>>
>>> even greater is op is a 'user', not 'root'.
> <snip>
>
> Here's a question to OP: how did you log into the system? If as *user*,
> rather than as root, the filesystem is busy because you're logged on,
and
> in it.
>
> Missed some of the posts overnight - has anyone asked for the o/p of df -h?
>
>     mark
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos


-- 
"replicants are like any other machine. They're either a benefit or a
hazard. If they're a benefit, it's not my problem."

Hello Glen,

On Thu, 2016-12-15 at 10:10 -0800, Glenn E. Bailey III
wrote:
> I was most def root.
There's a difference whether you logged in as root or su-ed to root. In
the latter case /home is still in use by the user you su-ed from.

Even though it is not strictly necessary to init 1 you must make sure
not a single user that uses /home for their home directory is logged in
and no system user accesses files there (f.e. apache configured with
home dirs) when attempting to move /home.

Regards,
Leonard.

-- 
mount -t life -o ro /dev/dna /genetic/research