Stuck on "Waiting for bootstrap" / not working on mainnet?

[Alwinius]

Checklist

• [x ] installed pyethapp inside a virtualenv

System/environment

• OS: Debian Jessie
• python version: 2.7.9
• pyethapp version: 1.5.1a0
• installation method (pip & pypi/git & setup.py): pip

Expected behaviour

it starts syncing the blockchain

Observed behaviour

(eth) alwin@www:~/eth$ pyethapp run INFO:app using data in path=/home/alwin/.config/pyethapp INFO:config loading config path=/home/alwin/.config/pyethapp WARNING:accounts keystore directory does not exist directory=/home/alwin/.config/pyethapp/keystore WARNING:accounts no accounts found INFO:app registering service service=accounts INFO:db No contrib directory found, so not loading any user services INFO:db opening LevelDB path=/home/alwin/.config/pyethapp/leveldb max_open_files=32000 block_cache_size=8388608 write_buffer_size=4194304 INFO:app registering service service=db INFO:p2p.discovery NodeDiscovery init INFO:p2p.discovery starting discovery proto this_enode=enode://c624ed810b12b06f30bec0ff80e8c1c703370e756c8a9fa85a08975deaef884935152dcb3ad0ada29b4271e08e2fdd9086eda70f2e7d71a1d1cfb09f11d9f200@0.0.0.0:30303 INFO:app registering service service=discovery INFO:p2p.peermgr PeerManager init INFO:app registering service service=peermanager INFO:eth.chainservice initializing chain deleting 32047 Initializing chain from provided genesis declaration INFO:eth.chainservice chain at number=0 INFO:eth.block Block pre-sealed, 0 gas used INFO:app registering service service=chain WARNING:jsonrpc could not import solidity INFO:app registering service service=jsonrpc WARNING:jsonrpc could not import solidity INFO:app registering service service=ipc INFO:app registering service service=console INFO:app starting INFO:p2p.peermgr starting peermanager INFO:p2p.peermgr starting listener addr=('0.0.0.0', 30303) INFO:p2p.discovery starting discovery INFO:p2p.discovery starting listener host=0.0.0.0 port=30303 INFO:jsonrpc starting IPCRPCServer ipcpath=/tmp/pyethapp.ipc INFO:jsonrpc starting JSONRPCServer port=4000 INFO:p2p.peermgr waiting for bootstrap
it stays like that for more than 12h

Steps to reproduce

create virtualenv
pip install pyethapp==1.5.1a0
pyethapp run

This page from the wiki implies that pyethapp is currently not working on mainnet. If that is the case, this should be clearly stated in the readme. If it works with the mainnet, the wiki page should be updated.