[CentOS] Yum refuses to install kmod-8188eu from elrepo

[Mike Burger]

On 2019-01-22 11:01, Akemi Yagi wrote:
> On Tue, Jan 22, 2019 at 7:54 AM Marko Vojinovic <vvmarko at gmail.com> 
> wrote:
>> 
>> 
>> I am having trouble using the realtek wifi chip in my new tp-link
>> usb wifi dongle. Upon plugging it, the device gets registered by the
>> kernel (in /var/log/messages), but that's about it, no network device
>> is being created (iwconfig does not see it, nothing else works).
>> 
>> A few google searches later I found out that this realtek chip is not
>> supported by the kernel and requires a driver, and that the driver is
>> packaged for C7 as kmod-8188eu in elrepo.
>> 
>> However, yum install kmod-8188eu refuses to install it (full yum
>> output is here: https://pastebin.com/raw/vvak6FCU ), complaining that
>> the following dependencies cannot be met:
>> 
>> --> Processing Dependency: kernel(wireless_send_event) = 0xa02e7e03 
>> for
>> package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_submit_urb) = 0x74c6ac58 for
>> package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_reset_device) = 0xddd0084e for
>> package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_put_dev) = 0xf709107c for
>>  package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_kill_urb) = 0xa55bf715 for
>> package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_get_dev) = 0x372a41af for
>>  package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_free_urb) = 0x739aecf4 for
>>  package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_control_msg) = 0xd04e3a9e for
>>  package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> --> Processing Dependency: kernel(usb_alloc_urb) = 0x12a4948e for
>> package: kmod-8188eu-4.1.4_6773.20130222-4.el7_5.elrepo.x86_64
>> 
>> I've never seen such output from yum before --- I'm guessing it is
>> asking for a kernel with specific "properties", and failing to find
>> one.
>> 
>> What is the best way to resolve this? Is there some kernel package
>> somewhere that matches these properties, or is there some other 
>> package
>> that provides these features to an existing kernel, or something else?
> 
> That output indicates that that kmod package is built for the EL 7.5
> kernel and is not compatible with the current kernel. I suggest you
> file a request to have the kmod-8188eu rebuilt for EL 7.6 at
> http://elrepo.org/bugs/ .
> 
> Akeme

Another alternative may be to pull down the SRPM and run it through 
rpmbuild to locally create a binary package compatible with the system 
as it's currently installed/running.
-- 
Mike Burger
http://www.bubbanfriends.org

"It's always suicide-mission this, save-the-planet that. No one ever 
just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1