* user_namespaces(7) should mention overlay as mountable since Linux 5.11
@ 2021-03-09 15:00 Szunti
2021-03-14 22:04 ` Michael Kerrisk (man-pages)
0 siblings, 1 reply; 4+ messages in thread
From: Szunti @ 2021-03-09 15:00 UTC (permalink / raw)
To: Michael Kerrisk, Alejandro Colomar; +Cc: linux-man
user_namespaces lists in Capabilities section the filesystems that can
be mount:
Holding CAP_SYS_ADMIN within the user namespace that owns a process's
mount namespace allows that process to create bind mounts and mount the
following types of filesystems:
* /proc (since Linux 3.8)
* /sys (since Linux 3.8)
* devpts (since Linux 3.9)
* tmpfs(5) (since Linux 3.9)
* ramfs (since Linux 3.9)
* mqueue (since Linux 3.9)
* bpf (since Linux 4.4)
IUUC this list should add
* overlay (since Linux 5.11)
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: user_namespaces(7) should mention overlay as mountable since Linux 5.11
2021-03-09 15:00 user_namespaces(7) should mention overlay as mountable since Linux 5.11 Szunti
@ 2021-03-14 22:04 ` Michael Kerrisk (man-pages)
2021-03-14 23:20 ` Dmitry V. Levin
0 siblings, 1 reply; 4+ messages in thread
From: Michael Kerrisk (man-pages) @ 2021-03-14 22:04 UTC (permalink / raw)
To: Szunti; +Cc: Alejandro Colomar, linux-man
Hi,
On Tue, 9 Mar 2021 at 16:00, Szunti <szunti@gmail.com> wrote:
>
> user_namespaces lists in Capabilities section the filesystems that can
> be mount:
>
> Holding CAP_SYS_ADMIN within the user namespace that owns a process's
> mount namespace allows that process to create bind mounts and mount the
> following types of filesystems:
>
> * /proc (since Linux 3.8)
> * /sys (since Linux 3.8)
> * devpts (since Linux 3.9)
> * tmpfs(5) (since Linux 3.9)
> * ramfs (since Linux 3.9)
> * mqueue (since Linux 3.9)
> * bpf (since Linux 4.4)
>
> IUUC this list should add
> * overlay (since Linux 5.11)
Could you add some info about how you discovered/verified this please.
That helps us check the details.
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: user_namespaces(7) should mention overlay as mountable since Linux 5.11
2021-03-14 22:04 ` Michael Kerrisk (man-pages)
@ 2021-03-14 23:20 ` Dmitry V. Levin
2021-03-21 15:45 ` Michael Kerrisk (man-pages)
0 siblings, 1 reply; 4+ messages in thread
From: Dmitry V. Levin @ 2021-03-14 23:20 UTC (permalink / raw)
To: Michael Kerrisk (man-pages); +Cc: Szunti, Alejandro Colomar, linux-man
Hi Michael,
On Sun, Mar 14, 2021 at 11:04:26PM +0100, Michael Kerrisk (man-pages) wrote:
> On Tue, 9 Mar 2021 at 16:00, Szunti <szunti@gmail.com> wrote:
> >
> > user_namespaces lists in Capabilities section the filesystems that can
> > be mount:
> >
> > Holding CAP_SYS_ADMIN within the user namespace that owns a process's
> > mount namespace allows that process to create bind mounts and mount the
> > following types of filesystems:
> >
> > * /proc (since Linux 3.8)
> > * /sys (since Linux 3.8)
> > * devpts (since Linux 3.9)
> > * tmpfs(5) (since Linux 3.9)
> > * ramfs (since Linux 3.9)
> > * mqueue (since Linux 3.9)
> > * bpf (since Linux 4.4)
> >
> > IUUC this list should add
> > * overlay (since Linux 5.11)
It should rather say overlayfs.
> Could you add some info about how you discovered/verified this please.
>
> That helps us check the details.
What a coincidence, I just happen to have the relevant Linux kernel
merge commits cached:
92dbc9dedccb9759c7f9f2f0ae6242396376988f aka v5.11-rc1~83
4cb2c00c43b3fe88b32f29df4f76da1b92c33224 aka v5.11-rc7~28
--
ldv
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: user_namespaces(7) should mention overlay as mountable since Linux 5.11
2021-03-14 23:20 ` Dmitry V. Levin
@ 2021-03-21 15:45 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; 4+ messages in thread
From: Michael Kerrisk (man-pages) @ 2021-03-21 15:45 UTC (permalink / raw)
To: Dmitry V. Levin; +Cc: mtk.manpages, Szunti, Alejandro Colomar, linux-man
On 3/15/21 12:20 AM, Dmitry V. Levin wrote:
> Hi Michael,
>
> On Sun, Mar 14, 2021 at 11:04:26PM +0100, Michael Kerrisk (man-pages) wrote:
>> On Tue, 9 Mar 2021 at 16:00, Szunti <szunti@gmail.com> wrote:
>>>
>>> user_namespaces lists in Capabilities section the filesystems that can
>>> be mount:
>>>
>>> Holding CAP_SYS_ADMIN within the user namespace that owns a process's
>>> mount namespace allows that process to create bind mounts and mount the
>>> following types of filesystems:
>>>
>>> * /proc (since Linux 3.8)
>>> * /sys (since Linux 3.8)
>>> * devpts (since Linux 3.9)
>>> * tmpfs(5) (since Linux 3.9)
>>> * ramfs (since Linux 3.9)
>>> * mqueue (since Linux 3.9)
>>> * bpf (since Linux 4.4)
>>>
>>> IUUC this list should add
>>> * overlay (since Linux 5.11)
>
> It should rather say overlayfs.
>
>> Could you add some info about how you discovered/verified this please.
>>
>> That helps us check the details.
>
> What a coincidence, I just happen to have the relevant Linux kernel
> merge commits cached:
> 92dbc9dedccb9759c7f9f2f0ae6242396376988f aka v5.11-rc1~83
> 4cb2c00c43b3fe88b32f29df4f76da1b92c33224 aka v5.11-rc7~28
Thanks Dmitry nd Szunti. I've added overlayfs.
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-03-09 15:00 user_namespaces(7) should mention overlay as mountable since Linux 5.11 Szunti
2021-03-14 22:04 ` Michael Kerrisk (man-pages)
2021-03-14 23:20 ` Dmitry V. Levin
2021-03-21 15:45 ` Michael Kerrisk (man-pages)
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