After upgrading to linux-3.5.4-1, I could no longer bring up the wlan0 interface. I returned to linux-3.5.3-1 and the problem was resolved. After installing 3.5.5-1, the problem has returned.
The wifi model is Buffalo WLI-UC-G300HP and it uses the rt2800usb module.
I'm going to reinstall 3.5.5-1 right now and save the error output so that I post it.
Last edited by ibid (2012-10-10 04:31:37)
This is the error I receive after trying to connect using wpa_supplicant.
rfkill: Cannot open RFKILL control device Could not read interface wlan0 flags: No such device WEXT: Could not set interface 'wlan0' UP wlan0: Failed to initialize driver interface
This is the output of lsusb, showing the device itself is identified:
Bus 004 Device 002: ID 0411:0148 BUFFALO INC. (formerly MelCo., Inc.) WLI-UC-G300HP Wireless LAN Adapter
This is the output of lsmod, showing the the rt2800usb module is not loaded, nor does it load after running modprobe -v rt2800usb (even with verbose there is no output).
Module Size Used by ext4 438807 4 crc16 1359 1 ext4 jbd2 78720 1 ext4 mbcache 5977 1 ext4 dm_mod 70918 19 sd_mod 29271 4 ahci 20549 2 libahci 20023 1 ahci ohci_hcd 21752 0 xhci_hcd 84338 0 ehci_hcd 41058 0 libata 167675 2 ahci,libahci usbcore 147434 3 ohci_hcd,ehci_hcd,xhci_hcd scsi_mod 132896 2 libata,sd_mod usb_common 954 1 usbcore reiserfs 239918 1
Well, now that I'm back to 3.5.3-1, I realize it may have been useful to run ifconfig wlan0 up, not just wpa_supplicant, but I'll wait for replies or other suggestions before I dive back in.
Thanks in advance.
I figured it out. It was an error on my part, my fstab was out of date and mounting the wrong boot partition, so the updated kernel was saving to a location other than where I boot from. <speculation---> So I was booting the old kernel, but the new modules were in place and couldn't load because of version mismatch, hence no wifi.