Thank you very much for the link.. I have built a new bootable kernel 2.6.9-67 on my machine. However I still have a problem :( During the installation at "make menuconfig" stage after "make oldconfig" I have added the generic HDLC package with synchronous PPP support and saved the new config then run rpmbuild -bb --target=`uname -m` kernel-2.6.spec 2> build-err.log | tee build-out.log. After reboot, I rechecked the menuconfig to make sure that the HDLC setting is there. I am not sure if this setting took effect or I have to make modules or build something else. So how would I know that the HDLC package is availalbe and built in? To elaborate more on the reasons behind this HDLC package, I am trying to build a device driver that asks for HDLC support. upon building the driver, I get the following warnings: Building modules, stage 2. MODPOST *** Warning: "unregister_hdlc_device" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! *** Warning: "hdlc_ioctl" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! *** Warning: "hdlc_open" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! *** Warning: "register_hdlc_device" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! *** Warning: "hdlc_close" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! *** Warning: "alloc_hdlcdev" [/home/DS3/wanPTMC-256T3_2_0B/driver/wan256t3.ko] undefined! Therefore, I am suspecting that I need the HDLC package available. I would be extremely thankful for anybody who can help me in this problem. Am I going into the wrong direction? jancio_wodnik at wp.pl wrote: > Johnny Hughes pisze: > >> jancio_wodnik at wp.pl wrote: >> >>> Yahia Tachwali pisze: >>> >>>> Hello folks, >>> >>> Hi. It is request for it to add this in kernel for centosplus, look >>> at this: http://bugs.centos.org/view.php?id=3019 >>> >>>> >>>> I am trying to add HDLC module support in the menuconfig. However, >>>> I am facing difficulties in rebuilding the kernel and modules. My >>>> main objective is to get the HDLC supported in kernel 2.6.9. I have >>>> a CentOS 4.4 with kernel 2.6.9.42. I need help in finding the best >>>> way to add the HDLC support whether through getting an RPM package >>>> for it or refering me to the right procedure in rebuilding the kernel. >>>> >>>> Thank you very much in advance for your help. >>> >>> No problem. >> >> >> That request was for CentOS-5, not CentOS-4 :D > > ? I can see: Category: [CentOS-4] kernel-centosplus My request was > exactly for centos 4 branch, but for 5 is good too. So, can i count > for You to make it posible in centos4 to support hdlc ? > >> >> HDLC was added to the CentOS-5 plus kernel for the latest version. >> >>------------------------------------------------------------------------ >> >>_______________________________________________ >>CentOS mailing list >>CentOS at centos.org >>http://lists.centos.org/mailman/listinfo/centos >> >> > >------------------------------------------------------------------------ > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >http://lists.centos.org/mailman/listinfo/centos > >