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

[Akemi Yagi]

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