Have no idea why ACL's does not work, but it is kinda might be useful for network stor

tested on my debian-bullseye system <div class="snippet-clipboard-content notransl

Linux ACL's (Access Control Lists) does not work for ext4 for some reason. about bpi-router-linux HOT 4 CLOSED

frank-w commented on July 23, 2024

Linux ACL's (Access Control Lists) does not work for ext4 for some reason.

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Comments (4)

frank-w commented on July 23, 2024

Have not done anything with acls yet. I would look for ext4 in config...maybe another option is needed for it

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kgara commented on July 23, 2024

Any ideas? So far have to use another sbc nearby just for the sake of acl's...

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frank-w commented on July 23, 2024

acl does not depend on hardware....if you have another sbc/pc running with acl just compare kernel-config to get the possible option missing in my config

zcat /proc/config.gz

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frank-w commented on July 23, 2024

tested on my debian-bullseye system


root@bpi-r2:~# uname -a                                                         
Linux bpi-r2 6.3.0-rc1-bpi-r2-sfp #1 SMP Tue Mar  7 20:03:39 CET 2023 armv7l GNU
/Linux
root@bpi-r2:~# zgrep -i 'acl' /proc/config.gz                                   
# CONFIG_XILINX_EMACLITE is not set                                             
CONFIG_EXT4_FS_POSIX_ACL=y                                                      
# CONFIG_XFS_POSIX_ACL is not set                                               
# CONFIG_BTRFS_FS_POSIX_ACL is not set                                          
CONFIG_F2FS_FS_POSIX_ACL=y                                                      
CONFIG_FS_POSIX_ACL=y                                                           
CONFIG_TMPFS_POSIX_ACL=y                                                        
CONFIG_NFS_V3_ACL=y                                                             
CONFIG_NFSD_V3_ACL=y                                                            
CONFIG_NFS_ACL_SUPPORT=y
root@bpi-r2:~# apt install acl
root@bpi-r2:~# mount -o remount,acl /                                           
[   72.885881] EXT4-fs (mmcblk0p2): re-mounted 83746542-38aa-4ab4-ae7e-722e5775.

root@bpi-r2:~# setfacl -R -m group:users:rwX /system/etc/firmware/              
root@bpi-r2:~# getfacl /system/etc/firmware/                                    
getfacl: Removing leading '/' from absolute path names                          
# file: system/etc/firmware/                                                    
# owner: root                                                                   
# group: root                                                                   
user::rwx                                                                       
group::r-x                                                                      
group:users:rwx                                                                 
mask::rwx                                                                       
other::r-x

maybe you need to set acl filesystem-option for your mountpoint (/mnt/md3tlocal/tmp/)? or maybe tmp directory is a tmpfs??

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