Hello Theodore,
Thank you for the feedback. I only had mke2fs in mind when trying to
look for a fix as this solves my immediate problem - to be able to
preserve ACLs when creating a filesystem via the Yocto build system.
I agree that the ext2fs_{read,write}_ functions may be a better place to
fix this. I did have an inkling that fixing this in
write_xattrs_to_buffer might not be the ideal fix and I was hoping for
exactly this - feedback from someone who knows the source better.
The biggest challenge was identifying the cause. Now I hope someone else
can step up and put the fix in the right location. My problem is solved
for now. :-)
Regards,
Sojan
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Touch seeded packages, which is subscribed to e2fsprogs in Ubuntu.
https://bugs.launchpad.net/bugs/1645232
Title:
e2fsprogs - could not preserve ACL permissions : The getxattr()
returns with (EINVAL)
Status in e2fsprogs package in Ubuntu:
Confirmed
Bug description:
The original installed e2fsprogs did not support mke2fs -d /directory
" option . So , git cloned from e2fsprogs packages from repository
and installed it and followed below steps to reproduce this :
1. set the ACL rules as below to one of the binary :
$ setfacl -m u:vipatil:r-- rootfs/usr/bin/helloworld
$ getfacl rootfs/usr/bin/helloworld
# file: rootfs/usr/bin/helloworld
# owner: shkumar
# group: hardev
user::rwx
user:vipatil:r--
group::---
mask::r--
other::---
2. $ dd if=/dev/zero of=test.ext4 bs=1M count=60
3. $ mke2fs -t ext4 test.ext4 -d rootfs/
mke2fs 1.43.3 (04-Sep-2016)
Discarding device blocks: done
Creating filesystem with 61440 1k blocks and 15360 inodes
Filesystem UUID: 495713b3-5f1f-427a-8359-a736dfb2ece9
Superblock backups stored on blocks:
8193, 24577, 40961, 57345
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Copying files into the device: done
Writing superblocks and filesystem accounting information: done
4. sudo mount -o loop,acl,user_xattr,rw,sync test.ext4 mountpoint
5.@/mountpoint$ getfacl usr/bin/helloworld
getfacl: usr/bin/helloworld: Invalid argument
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