[ArchLinux] [Daily] [Pacman] Local database damaged

Afternoon, happy to look at the DPDK documents, do a variety of small experiments.

Background normal Yaourt-syu, more than three grams of download, I always have a long time to update once.

And then the KDE window various anomalies, I know again at the beginning more x related things. But I see konsole because X is abnormal. So my brain is reboot ...

It's reboot, not systemctl reboot. (Do not understand why I am so brain-handicapped, since there is an anomaly, the description has been download completed, began to install, wait a moment, it is OK, restart without any help. ）

After the restart, sure enough, the wireless card driver is not up. Fortunately, there is a wired interface, or even the network will not go.

And then I was like the following steps to solve this problem

1. Use IP to view the device is not in (WLAN0), the description is not driven up.

[[Email protected] ~]$ IP Link1: Lo: <LOOPBACK,UP,LOWER_UP> MTU65536Qdisc Noqueue State UNKNOWN mode DEFAULT GroupdefaultQlen1Link/loopbackxx:xx:xx:xx:xx:xxBrdxx:xx:xx:xx:xx:xx2: Lan0: <BROADCAST,MULTICAST,UP,LOWER_UP> MTU theQdisc Fq_codel State up mode DEFAULT GroupdefaultQlen +Link/ether -: 7b:9d:5c:1e:9b BRD ff:ff:ff:ff:ff:ff3:Internal-BR0: <BROADCAST,MULTICAST,UP,LOWER_UP> MTU theQdisc Noqueue State UNKNOWN mode DEFAULT GroupdefaultQlen +Link/ether D2:FD: at: -: 9f:6a BRD ff:ff:ff:ff:ff:ff[[email protected]~]$

2. Lspci the hardware identification is OK, check the SYSFS, verify that the driver is not driving.

[Email protected] ~]$ Lspci-nn | grep Wire :00.0 Network Controller [02807265 [8086]
~]$ ls/sys/bus/pci/devices/0000\:\ n \:00.0/|
Xxxx

Based on the above, it has been proved that the driver Iwlwifi has a problem, now it is necessary to see what the problem.

3. Through the DMESG view, the system startup phase will try to load the network card, out of the wrong.

[Email protected] pkg]# DMESG |grep iw[3.096783] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- +. Ucode failed with error-2[    3.096800] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- -. Ucode failed with error-2[    3.096810] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- +. Ucode failed with error-2[    3.096820] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- -. Ucode failed with error-2[    3.096830] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- -. Ucode failed with error-2[    3.096840] Iwlwifi0000:Geneva:00.0: Direct Firmware Load foriwlwifi-7265d- -. Ucode failed with error-2[    3.096843] Iwlwifi0000:Geneva:00.0: no suitable firmware found![email protected] pkg]#

As can be seen, is firmware out of the problem, has basically been able to determine that the new firmware has a problem, the latter update time by my restart messed up.

4. I don't know firmware is a god horse ghost, so I have to find out which one is the bag

[Email protected] pkg]# pacman-q| grep firmwarelinux 20160915. c4c07a8-1

5. Rewind/unload/or reload. So the problem came, it was playing bad.

[Email protected] pkg]# pacman-run linux-/var/lib/pacman/local/linux-firmware-20160915 . c4c07a8-1/ for package linux-firmware-20160915. c4c07a8-1  Checking dependencies...warning:removing linux from are do

It's not going to work, because it's broken, and in the end I'm doing it.

(1) Touch empty file desc. (2)--force re-installed the bag.

This is not a good idea, because--force represents violence, destruction. We should choose the official method to solve the problem. IRC consulted a big brother, give suggestions as follows connection. I didn't see it, and I didn't try. But I think it should be.

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

6. Re-see if it's really good.

[ArchLinux] [Daily] [Pacman] Local database damaged