Servers
Network Block Device (TCP version)
tschwinge once was testing this (years ago), and found it didn't work. Perhaps the protocol was extended?
IRC, freenode, #hurd, 2012-12-20
<youpi> if somebody has time to spend, building the nbd package makes
pfinet crash
IRC, freenode, #hurd, 2012-12-21
<youpi> (in the testsuite)
xNBD
jNbd
BlackHole
Open Issues
GNU Savannah task #5722
Platform-specific Error Values in the Wire Protocol
See, for example, the threads starting at id:"1431012374-14113-2-git-send-email-pbonzini@redhat.com", id:"1431078628-7856-1-git-send-email-pbonzini@redhat.com", id:"1431014292-24645-1-git-send-email-pbonzini@redhat.com".