I'm getting a strange error pop up on my box:

############################# No more mirrors are available

Required data could not be found on any of the configured software sources. There were no more download mirrors that could be tried.

More details failure: repodata/filelists.sqlite.bz2 from elrepo: [Errno 256] No more mirrors to try. #############################

How to figure out what's causing this error?

Linux mushroom.patch 2.6.32-279.22.1.el6.i686 #1 SMP Wed Feb 6 00:31:03 UTC 2013 i686 i686 i386 GNU/Linux

Tail of dmesg: hub 1-0:1.0: unable to enumerate USB device on port 7 usb 1-7: new high speed USB device number 7 using ehci_hcd usb 1-7: New USB device found, idVendor=0781, idProduct=74d1 usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-7: Product: SanDisk Sansa Clip+ usb 1-7: Manufacturer: SanDisk usb 1-7: SerialNumber: 9C01F60D9554B7A80000000000000000 usb 1-7: configuration #1 chosen from 1 choice Initializing USB Mass Storage driver... scsi8 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 7 usb-storage: waiting for device to settle before scanning usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usb-storage: device scan complete scsi 8:0:0:0: Direct-Access SanDisk Sansa Clip+ 4GB v01. PQ: 0 ANSI: 0 scsi 8:0:0:1: Direct-Access SanDisk Sansa Clip+ 4GB v01. PQ: 0 ANSI: 0 sd 8:0:0:0: Attached scsi generic sg3 type 0 sd 8:0:0:1: Attached scsi generic sg4 type 0 sd 8:0:0:0: [sdc] 7683072 512-byte logical blocks: (3.93 GB/3.66 GiB) sd 8:0:0:0: [sdc] Write Protect is off sd 8:0:0:0: [sdc] Mode Sense: 04 00 00 00 sd 8:0:0:0: [sdc] Assuming drive cache: write through sd 8:0:0:0: [sdc] Assuming drive cache: write through sdc: sd 8:0:0:1: [sdd] 61497344 512-byte logical blocks: (31.4 GB/29.3 GiB) sd 8:0:0:0: [sdc] Assuming drive cache: write through sd 8:0:0:0: [sdc] Attached SCSI removable disk sd 8:0:0:1: [sdd] Write Protect is off sd 8:0:0:1: [sdd] Mode Sense: 04 00 00 00 sd 8:0:0:1: [sdd] Assuming drive cache: write through sd 8:0:0:1: [sdd] Assuming drive cache: write through sdd: sdd1 sd 8:0:0:1: [sdd] Assuming drive cache: write through sd 8:0:0:1: [sdd] Attached SCSI removable disk SELinux: initialized (dev sdc, type vfat), uses genfs_contexts SELinux: initialized (dev sdd1, type vfat), uses genfs_contexts