I try to use acl but I failed to remount file system with acl if seams kernel compiled with disabled acl for ext filesystem.

 

my fstab config:

# UNCONFIGURED FSTAB FOR BASE SYSTEM
tmpfs   /tmp         tmpfs   nodev,nosuid,size=256M          0  0
/dev/mmcblk0p1  /           ext4    acl,defaults,noatime,nodiratime,data=writeback,commit=600,errors=remount-ro        0       0
/var/swap none swap sw 0 0

and my check  for acl in kernel config:

root@orangepipc:~# cat /boot/config-3.4.112-sun8i | grep _ACL
# CONFIG_EXT4_FS_POSIX_ACL is not set
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_FS_POSIX_ACL=y
CONFIG_GENERIC_ACL=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFS_ACL_SUPPORT=y

It seams the analog audio out put dos't work too, I can't test it with speaker-test.  

 

It would be a great favor to recompile kernel with acl for ext4 and guide me about audio out put.

Done.

 

https://github.com/igorpecovnik/lib/commit/8311544bbd047443589ea0d923c5100d3b2ffea1

 

If you need anything else, kernel configurations are stored here and there is an edit button + push back.

you are blazing fast thanks but I don't really how compile and replace the kernel and I afraid of boot fail.
I'm running `ARMBIAN Debian GNU/Linux 8 (jessie) 3.4.112-sun8i` on orange pi pc.

There are two options:

 

1. You compile yourself: If you don't know how ... start to read and learn.

2. Wait for kernel update. We are preparing a bugfix update within few days

 

Update is done on a standard Debian way.

It seams you write a great and simple instruction to compile kernel  but if you guide me about how specify my board and how to replace kernel I love to do it myself 

Ok Install ubuntu 16.04 follow instruction you make and yes it compiled and it was simple thanks to igore script (there was problem with dialog I suggest to add  apt update to start of script ) .

 

During the compile process it ask about device type and kernel version and I choose orange pi pc and default kernel. finally it makes some .deb file in output directory i copy all of them to orange pi pc /root and install on armbian .

 

The acl flag kernel config is now enabled :

root@orangepipc:~# cat /boot/config-3.4.112-sun8i | grep _ACL
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_FS_POSIX_ACL=y
CONFIG_GENERIC_ACL=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFS_ACL_SUPPORT=y

but mount command doesn't show acl flag is available:

root@orangepipc:~# mount
/dev/mmcblk0p1 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro,commit=600)
devtmpfs on /dev type devtmpfs (rw,relatime,size=380824k,nr_inodes=95206,mode=755)
sysfs on /sys type sysfs (rw,relatime)
none on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
none on /proc type proc (rw,nosuid,nodev,noexec,relatime)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/cgroup type tmpfs (rw,relatime,size=4k,mode=755)
none on /sys/fs/fuse/connections type fusectl (rw,relatime)
none on /sys/kernel/debug type debugfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime,size=262144k)
none on /run type tmpfs (rw,nosuid,noexec,relatime,size=102416k,mode=755)
none on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
cgmfs on /run/cgmanager/fs type tmpfs (rw,relatime,size=100k,mode=755)
none on /run/shm type tmpfs (rw,nosuid,nodev,relatime)
none on /run/user type tmpfs (rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755)

and now I'm able to run setfacl -dm without problem but it still doesn't set default permission for new files it's really strange. 

root@orangepipc:~# setfacl -dm u::rwx,g::rwx,o::r  /var/www/html/files
root@orangepipc:~# getfacl  /var/www/html/files
getfacl: Removing leading '/' from absolute path names
# file: var/www/html/files
# owner: www-data
# group: www-data
# flags: ss-
user::rwx
group::rwx
other::rwx
default:user::rwx
default:group::rwx
default:other::r--

root@orangepipc:~# touch /var/www/html/files/test
root@orangepipc:~# ls -ltrh /var/www/html/files
total 0
-rw-rw-r-- 1 root www-data 0 May 22 17:39 test

I hope somebody can help me to understand whats happening here?