[CentOS] kmod-jfs on Centos 6

H agents at meddatainc.com
Fri Oct 27 00:22:52 UTC 2017


On 10/26/2017 08:01 PM, Akemi Yagi wrote:
> On Thu, Oct 26, 2017 at 4:17 PM, H <agents at meddatainc.com> wrote:
>
>> On October 26, 2017 6:31:04 PM EDT, Akemi Yagi <amyagi at gmail.com> wrote:
>>> On Thu, Oct 26, 2017 at 3:11 PM, H <agents at meddatainc.com> wrote:
>>>
>>>> On 04/18/2017 12:54 PM, H wrote:
>>>>> A  couple of days ago I submitted a request to ElRepo and kmod-jfs
>>> is
>>>> now available for CentOS 7 as well.
>>>> Did not have a need to mount a JFS disk on my CentOS 7 system until
>>> today
>>>> and it does not want to be mounted, instead complaining "unknown
>>> filesystem
>>>> type 'jfs'". I do have kmod-jfs installed.
>>>>
>>>> The commandline I use is:
>>>>
>>>> mount -t "jfs" -o "uhelper=udisks2,nodev,nosuid" "/dev/sdb1"
>>> /mnt/share
>>>> I am doing this as root and /mnt/share has been created for the root
>>> user.
>>>> What am I doing wrong? Does anyone have JFS volumes mounted under
>>> CentOS 7?
>>> ​The kmod-jfs package needs to be rebuilt against the EL7.4 kernel. ​
>>>
>>> ​We will update the bug report (
>>>http://elrepo.org/bugs/view.php?id=728 )
>>> when the updated version is ready.
>>>
>>> Akemi
>> Where does one see which kernel version the release is intended for? I
>> should add that I installed it from elrepo earlier today on a current
>> computer, not some time ago... No error messages.
>>
> ​Try the following command on a computer you had kmod-jfs installed:
>
> ​$ ls -l `find /lib/modules -name jfs.ko`
>
> It will show where the module was installed (in the extra/ directory) and
> may show symbolic links to other kernel versions (if any) that are
> compatible.
>
> In the case of the kmod-jfs package, there was a kABI breakage when going
> from el7.3 to el7.4. As a result, what was built against el7.3 was broken
> in el7.4. It has now been built against the el7.4 kernel. This one is not
> backward compatible with earlier (< 7.4) kernels.
>
> Akemi
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos

I tried the above and this is the output:

lrwxrwxrwx. 1 root root     51 Oct 26 17:56 /lib/modules/3.10.0-514.21.2.el7.x86_64/weak-updates/jfs/jfs.ko -> /lib/modules/3.10.0-514.el7.x86_64/extra/jfs/jfs.ko
lrwxrwxrwx. 1 root root     51 Oct 26 17:56 /lib/modules/3.10.0-514.26.1.el7.x86_64/weak-updates/jfs/jfs.ko -> /lib/modules/3.10.0-514.el7.x86_64/extra/jfs/jfs.ko
lrwxrwxrwx. 1 root root     51 Oct 26 17:56 /lib/modules/3.10.0-514.26.2.el7.x86_64/weak-updates/jfs/jfs.ko -> /lib/modules/3.10.0-514.el7.x86_64/extra/jfs/jfs.ko
-rw-r--r--. 1 root root 302480 Apr 16  2017 /lib/modules/3.10.0-514.el7.x86_64/extra/jfs/jfs.ko

I also ran yum update again but it did not pick up kmod-jfs although it was just updated. How long time does it typically take for an updated package to become available?




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