[archlinux][daily][pacman] local database 损坏

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: lan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 50:7b:9d:5c:1e:9b brd ff:ff:ff:ff:ff:ff 3: internal-br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/ether d2:fd:23:44:9f:6a brd ff:ff:ff:ff:ff:ff [tong@T7 ~]$

2. lspci说明硬件识别正常，查看sysfs，确认确实是驱动没有驱起来。

[tong@T7 ~]$ lspci -nn |grep Wire
03:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095b] (rev 61)
xxxxx
[tong@T7 ~]$ ls /sys/bus/pci/devices/0000\:03\:00.0/ |grep driver
driver_override
[tong@T7 ~]$ 
xxxx

基于以上，已经证实了驱动iwlwifi出了问题，现在就要看一下出了什么问题。

3. 通过dmesg查看，系统启动阶段一定会试图去加载网卡，出了错。

[root@T7 pkg]# dmesg |grep iw
[    3.096783] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-21.ucode failed with error -2
[    3.096800] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-20.ucode failed with error -2
[    3.096810] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-19.ucode failed with error -2
[    3.096820] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-18.ucode failed with error -2
[    3.096830] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-17.ucode failed with error -2
[    3.096840] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-7265D-16.ucode failed with error -2
[    3.096843] iwlwifi 0000:03:00.0: no suitable firmware found!
[root@T7 pkg]# 

可以看出来，是firmware出了问题，已经基本能够断定是更新了新的firmware有问题，后者更新时候被我重启搞坏了。

4. 我并不知道firmware是神马鬼，所以必须找到是哪一个包

[root@T7 pkg]# pacman -Q|grep firmware
linux-firmware 20160915.c4c07a8-1
[root@T7 pkg]# 

5. 回退 / 卸载 / 或者重装。于是问题来了，它被玩坏了。

[root@T7 pkg]# pacman -Run linux-firmware
error: could not open file /var/lib/pacman/local/linux-firmware-20160915.c4c07a8-1/desc: No such file or directory
warning: could not fully load metadata for package linux-firmware-20160915.c4c07a8-1
checking dependencies...
warning: removing linux-firmware from target list
 there is nothing to do
[root@T7 pkg]# 

怎样也不行，因为它坏了，最后我是这么搞的。

（1）touch空文件desc。（2）--force重装了这个包。

这并不是个好主意，因为--force代表着暴力，破坏。我们应该选择官方方法解决这个问题。IRC请教了某大哥，给出建议如下连接。我并没有看，也没用试。但我想应该是好使的。

https://wiki.archlinux.org/index.php/Pacman/Restore_local_database

6. 重新，看看是不是真的好了。

 

[archlinux][daily][pacman] local database 损坏

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