Linux
使已在 Fedora 上停用的核心模組可用
編輯:我把克里斯蒂安的回答變成了一個自動完成所有事情的腳本:https ://github.com/frans-fuerst/magic/blob/master/fedora-activate-can.sh
我需要一些在 Linux 原始碼中可用但在 Fedora 20 上停用的核心模組,我想知道使它們可用的最簡單和最先進的方法是什麼。(即 net/CAN 支持導致一些 can_* 模組)
- 是否有使停用的模組可用的 fedora-repos/rpms?
- 還是我必須手動編譯這些模組?
- 在這種情況下 - 是否有一些機制可以在核心更新的情況下自動執行此操作,還是我必須一遍又一遍地編譯它們?
我已經遵循了這個HowTo(還有更多非常相似的方法),但是“僅建構模組”部分似乎僅適用於尚未禁用的模組,因為在這種情況下,甚至模組源都失去了。
這是我在提到的HowTo之後嘗試的方法:
首先,我嘗試遵循Out Of Tree Modules部分,但在附帶的該死的原始碼樹中,
kernel-devel
甚至缺少 CAN 支持的原始碼。所以我嘗試從 src.rpm 建構模組:$ yumdownloader --source kernel $ sudo yum-builddep kernel-3.14.8-200.fc20.src.rpm $ rpm -Uvh kernel-3.14.8-200.fc20.src.rpm $ cd ~/rpmbuild/SPECS $ rpmbuild -bp --target=$(uname -m) kernel.special $ cd ~/rpmbuild/BUILD/<kerneldir>/<linuxdir> $ <configure the kernel using menuconfig> $ make prepare
然後我建構並收到一些警告:
$ make -C /lib/modules/`uname -r`/build M=`pwd`/net/can modules make: Entering directory `<rpmbuild-BUILD-kernel-linux-dir>' WARNING: Symbol version dump <rpmbuild-BUILD-kernel-linux-dir>/Module.symvers is missing; modules will have no dependencies and modversions. CC [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/bcm.o CC [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/gw.o CC [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/raw.o CC [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/af_can.o CC [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/proc.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-raw.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-bcm.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-gw.o Building modules, stage 2. MODPOST 4 modules CC <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-bcm.mod.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-bcm.ko CC <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-gw.mod.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-gw.ko CC <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-raw.mod.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-raw.ko CC <rpmbuild-BUILD-kernel-linux-dir>/net/can/can.mod.o LD [M] <rpmbuild-BUILD-kernel-linux-dir>/net/can/can.ko make: Leaving directory `<rpmbuild-BUILD-kernel-linux-dir>' $ sudo make -C /lib/modules/`uname -r`/build M=`pwd`/net/can modules_install make: Entering directory `<rpmbuild-BUILD-kernel-linux-dir>' INSTALL <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-bcm.ko Can't read private key INSTALL <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-gw.ko Can't read private key INSTALL <rpmbuild-BUILD-kernel-linux-dir>/net/can/can-raw.ko Can't read private key INSTALL <rpmbuild-BUILD-kernel-linux-dir>/net/can/can.ko Can't read private key DEPMOD 3.14.8 make: Leaving directory `<rpmbuild-BUILD-kernel-linux-dir>'
我剛跑步時沒有收到第一個警告,
make modules
但這花了我大約一個小時。但是安裝後,
.ko
文件位於錯誤的目錄(/usr/lib/modules/3.14.8
而不是)中,/usr/lib/modules/3.14.8-200.fc20.x86_64
之後我得到了depmod -a``modprobe can
modprobe: ERROR: could not insert 'can': Exec format error
我究竟做錯了什麼?
我想我明白了,儘管它可能遠非完美。
- 通過執行準備原始碼
rpmbuild -bp --target=$(uname -m) kernel.spec
- 轉到建構目錄,例如:
cd ~/rpmbuild/BUILD/kernel-3.14.fc20/linux-3.14.8-200.fc20.x86_64
- 編輯
Makefile
並設置EXTRAVERSION
為:EXTRAVERSION = -200.fc20.x86_64
- 啟用模組。我建議從目錄下的相應文件開始
configs
(我用過kernel-3.14.8-x86_64.config
)。- 為模組準備核心:
make modules_prepare
- 建構模組:
make M=drivers/net/can
- 利潤!插入模組:
insmod can-dev.ko