[CentOS] HFSPlus Question

[Chris Murphy]

On Fri, Jun 3, 2016 at 12:24 AM, Ned Slider <ned at unixmail.co.uk> wrote:
>
>
> On 03/06/16 04:45, Chris Murphy wrote:
>>
>> On Tue, May 31, 2016, 7:59 PM Albert McCann <albert.mccann at outlook.com>
>> wrote:
>>
>>> In CentOS 7.2.1511 does the 3.10.0-327.18.2.el7.centos.plus.x86_64 (Plus)
>>> kernel read HFSPlus iMac drives? I don't see any hfsplus modules
>>> installed
>>> anywhere, so I suspect not.
>>
>>
>>
>> It's in mainline so I don't know why it would not be built. It certainly
>> exists on Fedora. You could get Fedora live image, dd to a USB stick and
>> it
>> will boot the Mac.
>>
>
> There are a lot of modules in the equivalent mainline kernel that are not
> enabled / built in the RHEL kernel, reason being RH don't want the extra
> workload of maintaining (backporting fixes) those drivers for the 10 year
> lifespan of the product, long after upstream support at kernel.org has
> ended.
>
> In this case they probably determined it unlikely that a user would want to
> hook an HFSPlus volume up to a RHEL server. They also disabled a whole bunch
> of 100Mbit ethernet drivers commonly found on older desktop motherboards in
> RHEL7 for the same reason.

Fedora 24
[root at f24m mnt]# grep HFSPLUS /boot/config-4.5.6-300.fc24.x86_64
CONFIG_HFSPLUS_FS=m
# CONFIG_HFSPLUS_FS_POSIX_ACL is not set

CentOS 7
[root at localhost ~]# grep HFSPLUS /boot/config-3.10.0-123.20.1.el7.x86_64
# CONFIG_HFSPLUS_FS is not set

[root at localhost ~]# grep HFSPLUS /boot/config-4.6.1-1.el7.elrepo.x86_64
CONFIG_HFSPLUS_FS=m
# CONFIG_HFSPLUS_FS_POSIX_ACL is not set


So it looks like it's not created in the CentOS kernels, but is in the
elrepo and Fedora kernels.


-- 
Chris Murphy