[Yum] 'yum update' error - Cannot retrieve repository metadata

[Seth Vidal]

On Mon, 14 Sep 2009, Andrew Wheal wrote:

> I have run the command 'tcpdump -w tcpdump.txt | yum update' and then i used 
> 'tcpdump -r tcpdump.txt' to get the results, below:
>
> reading from file tcpdump.txt, link-type EN10MB (Ethernet)
> 12:39:09.221619 arp who-has mygateway.ar7 tell sicoserver
> 12:39:09.225138 arp reply mygateway.ar7 is-at 00:14:6c:10:6e:da (oui Unknown)
> 12:39:09.225145 IP sicoserver.35396 > mygateway.ar7.domain:  36584+ AAAA? 
> mirror.bytemark.co.uk. (39)
> 12:39:09.267061 IP mygateway.ar7.domain > sicoserver.35396:  36584 0/0/0 (39)
> 12:39:09.267140 IP sicoserver.39452 > mygateway.ar7.domain:  9735+ AAAA? 
> mirror.bytemark.co.uk. (39)
> 12:39:09.272099 IP mygateway.ar7.domain > sicoserver.39452:  9735- 1/0/0 (39)
> 12:39:09.272166 IP sicoserver.35949 > mygateway.ar7.domain:  9418+ A? 
> mirror.bytemark.co.uk. (39)
> 12:39:09.276625 IP mygateway.ar7.domain > sicoserver.35949:  9418- 1/0/0 
> A[|domain]
> 12:39:09.276778 IP sicoserver.36733 > 1.0.0.0.http: S 509686349:509686349(0) 
> win 5840 <mss 1460,sackOK,timestamp 220963 0,nop,wscale 7>
> 12:39:12.276614 IP sicoserver.36733 > 1.0.0.0.http: S 509686349:509686349(0) 
> win 5840 <mss 1460,sackOK,timestamp 223963 0,nop,wscale 7>
> 12:39:14.256873 arp who-has sicoserver tell mygateway.ar7
> 12:39:14.256880 arp reply sicoserver is-at 00:18:f3:67:f7:fe (oui Unknown)
> 12:39:18.276669 IP sicoserver.36733 > 1.0.0.0.http: S 509686349:509686349(0) 
> win 5840 <mss 1460,sackOK,timestamp 229963 0,nop,wscale 7>
> 12:39:28.475768 IP 192.168.0.7.plysrv-https > 239.192.152.143.plysrv-https: 
> UDP, length 119
> 12:39:30.276781 IP sicoserver.36733 > 1.0.0.0.http: S 509686349:509686349(0) 
> win 5840 <mss 1460,sackOK,timestamp 241963 0,nop,wscale 7>
> 12:39:35.276821 arp who-has mygateway.ar7 tell sicoserver
> 12:39:35.278773 arp reply mygateway.ar7 is-at 00:14:6c:10:6e:da (oui Unknown)
> 12:40:10.367175 IP 192.168.0.7.netbios-dgm > 192.168.0.255.netbios-dgm: NBT 
> UDP PACKET(138)
>
> A lot of this doesn't make sense to me, but I can work out that packets are 
> being sent to and from my server.  What looks strange to me though is that my 
> server has tried to send packets to "1.0.0.0.http"? Should this not be a 
> valid IP address?
>
> My 'yum.conf' file has no reference to neither throttle nor bandwidth.  Here 
> is the contents of my file, incase there is something wrong with it:
>


take the baseurl of the site you cannot connect to and run:

urlgrabber $thaturl/repodata/repomd.xml

see what it says.

-sv