Re: [PATCH 0/4]Add FUSE: File system in Userspace

[Mark Hatle <mark.hatle@windriver.com>]

On 5/30/13 4:18 AM, Jack Mitchell wrote:
>
> On 30/05/13 10:01, Hongxu Jia wrote:
>> Add fuse to oe-core and let target system could support
>> `ntfs' and `exfat' filesystems.
>>
>> Test Case
>>
>> *Steps
>> 1, preparation
>> 1 target: e-menlow
>> 2 usb sticks: one for boot and install, another for filesystem test.
>>
>> 2, config
>> conf/local.conf:
>> 247 MACHINE ?= "emenlow-noemgd"
>> 247 IMAGE_INSTALL_append = " ntfs-3g ntfsprogs fuse-exfat exfat-utils"
>>
>> conf/bblayers.conf:
>>     8 BBLAYERS ?= " \
>>     9   /home/jiahongxu/yocto/poky/meta \
>>    10   /home/jiahongxu/yocto/poky/meta-yocto \
>>    11   /home/jiahongxu/yocto/poky/meta-yocto-bsp \
>>    12   /home/jiahongxu/yocto/poky/meta-intel \
>>    13   /home/jiahongxu/yocto/poky/meta-intel/meta-emenlow \
>>
>> 3, build image
>> bitbake core-image-sato
>>
>> 4, load image to emenlow
>> Test Case TC-2927: boot and install from usb
>>
>> 5, open a terminal/ssh of e-menlow
>> Test Case TC-2955: remote access by ssh
>>
>> 6, make exfat filesystem on the testing usb storage
>> 1) plug usb stick into e-menlow
>> 2) execute `mkfs.exfat /dev/sdc1'
>>
>> 7, test usb stick with exfat filesystem is accessible
>> Test Case TC-2947: usb mount
>> Test Case TC-2948: usb read files
>> Test Case TC-2949: usb umount
>> Test Case TC-2950: usb write files
>>
>> 8, make ntfs filesystem on the testing usb storage
>> 1) plug usb stick into e-menlow, if mounted, invoke `umount /dev/sdc1' first.
>> 2) execute `mkfs.ntfs -f /dev/sdc1'
>>
>> 9, test usb stick with ntfs filesystem is accessible
>> Test Case TC-2947: usb mount
>> Test Case TC-2948: usb read files
>> Test Case TC-2949: usb umount
>> Test Case TC-2950: usb write files
>>
>> *Expected Results:
>> 1, build image success
>>
>> 2, make exfat filesystem success
>> root@emenlow-noemgd:~# mkfs.exfat /dev/sdc1
>> mkexfatfs 1.0.1
>> Creating... done.
>> Flushing... done.
>> File system created successfully.
>>
>> 3, make ntfs filesystem success
>> root@emenlow-noemgd:~# mkfs.ntfs -f /dev/sdc1
>> Cluster size has been automatically set to 4096 bytes.
>> Creating NTFS volume structures.
>> mkntfs completed successfully. Have a nice day.
>>
>> 4, While the usb's filesystem type is exfat or ntfs, system can mount
>> plugged usb automatically, read files from usb, write files to usb and
>> unmout usb automatically.
>>
>> [YOCTO #4178]
>>
>> The following changes since commit 350c36fcd97e8ef223b91e548d39c346c1c4cb29:
>>
>>     bitbake: test/fetch: Allow the conditional network tests to work under python 2.6 (2013-05-17 12:42:08 +0300)
>>
>> are available in the git repository at:
>>
>>     git://git.pokylinux.org/poky-contrib hongxu/support-fuse
>>     http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=hongxu/support-fuse
>>
>> Hongxu Jia (4):
>>     fuse: import recipe from meta-oe
>>     ntfs-3g-ntfsprogs:import and update recipe from meta-oe
>>     fuse-exfat: add version 1.0.1
>>     exfat-utils: add version 1.0.1
>>
>>    meta/recipes-support/exfat/exfat-utils_1.0.1.bb    |   29 ++++++++++
>>    meta/recipes-support/exfat/fuse-exfat_1.0.1.bb     |   26 +++++++++
>>    meta/recipes-support/fuse/fuse-2.9.2/aarch64.patch |   20 +++++++
>>    .../fuse/fuse-2.9.2/gold-unversioned-symbol.patch  |   60 ++++++++++++++++++++
>>    meta/recipes-support/fuse/fuse_2.9.2.bb            |   38 +++++++++++++
>>    .../ntfs-3g-ntfsprogs_2013.1.13.bb                 |   33 +++++++++++
>>    6 files changed, 206 insertions(+)
>>    create mode 100644 meta/recipes-support/exfat/exfat-utils_1.0.1.bb
>>    create mode 100644 meta/recipes-support/exfat/fuse-exfat_1.0.1.bb
>>    create mode 100644 meta/recipes-support/fuse/fuse-2.9.2/aarch64.patch
>>    create mode 100644 meta/recipes-support/fuse/fuse-2.9.2/gold-unversioned-symbol.patch
>>    create mode 100644 meta/recipes-support/fuse/fuse_2.9.2.bb
>>    create mode 100644 meta/recipes-support/ntfs-3g-ntfsprogs/ntfs-3g-ntfsprogs_2013.1.13.bb
>>
>
> Without trying to be difficult, is oe-core really the place to support
> and spend effort ensuring NTFS/exFAT formatted drives are supported?

The basis of this work comes from pretty much all SD/MicroSD cards, most 
consumer USB hard disks, etc being preformatted as NTFS/exFAT.  When building a 
consumer device the designers often want to just use FUSE out of the box so they 
don't have to work on adding the functionality themselves.

meta-oe is often times too much stuff in one bundle to just included in a 
project.  The developers I work with prefer a smaller load of packages, 
primarily oe-core + whatever they need.  It makes it easier to support and 
easier to prevent problems from being introduced by feature creep.

> Could these improvements not stay in meta-oe? I don't really see support
> for essentially propriety filesystems as a core feature of a Linux build.

Yes they could, but then it forces more people to copy the recipes out of meta-oe.

I myself am mixed on if fuse belongs on oe-core or not.  I can see the argument 
both ways on including it or rejecting it.  However, I'm getting more and more 
commercial requests for FUSE to be part of the main system.

> Shout up if I'm talking nonsense, just my 2p.
>