btrfs won't mount to /home

btrfs won't mount to /home

[Tomasz Chmielewski]

This is kind of strange (kernel 4.6.3, Ubuntu 16.04):

# mount -t btrfs /dev/sda4 /home

# echo $?
0

# dmesg -c
[382148.588847] BTRFS info (device sda4): disk space caching is enabled
[382148.588851] BTRFS: has skinny extents

So it worked?

# ls /home

<empty, should be showing data>

# df | grep home

# mount | grep /home

# lsof -n | grep /home


All give no output.


So, weird, isn't it?

Now, let's try to mount to /home2:

# mkdir /home2

# mount /dev/sda4 /home2

# mount | grep home
/dev/sda4 on /home2 type btrfs 
(rw,relatime,space_cache,subvolid=5,subvol=/)

# dmesg -c
[382190.199363] BTRFS info (device sda4): disk space caching is enabled
[382190.199370] BTRFS: has skinny extents



What's wrong there?


Tomasz Chmielewski
https://wpkg.org

Re: btrfs won't mount to /home

[Roman Mamedov]

[-- Attachment #1: Type: text/plain, Size: 283 bytes --]

On Mon, 11 Jul 2016 22:45:13 +0900
Tomasz Chmielewski <tch@virtall.com> wrote:
 
> So, weird, isn't it?
>
> What's wrong there?

Your systemd unmounts it immediately from /home, search the archives there's
been a funny story like that recently.

-- 
With respect,
Roman

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]

Re: btrfs won't mount to /home

[Tomasz Chmielewski]

On 2016-07-11 22:56, Roman Mamedov wrote:
> On Mon, 11 Jul 2016 22:45:13 +0900
> Tomasz Chmielewski <tch@virtall.com> wrote:
> 
>> So, weird, isn't it?
>> 
>> What's wrong there?
> 
> Your systemd unmounts it immediately from /home, search the archives 
> there's
> been a funny story like that recently.

Yes, could be similar to this one: https://bugs.archlinux.org/task/44658

In my case, the entry did exist in /etc/fstab, but was different than at 
the time of booting the system.



Tomasz Chmielewski
https://wpkg.org