<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em; }body { font-size: 10.5pt; font-family: ????; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><body> <div><span></span>Thanks for your reply.Is there any other reasion.By "pstree",the pulseaudio is started by upstart.I mean,even when I choose systemd as the init daemon.I can not remove upstart in Ubuntu15.04 ?</div> <div><br></div><hr style="WIDTH: 210px; HEIGHT: 1px" color="#b5c4df" size="1" align="left"> <div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>yankun@iscas.ac.cn</div></div></span></div> <blockquote style="margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;"><div> </div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b> <a href="mailto:martin.pitt@ubuntu.com">Martin Pitt</a></div><div><b>Date:</b> 2016-01-06 16:59</div><div><b>To:</b> <a href="mailto:yankun@iscas.ac.cn">yankun@iscas.ac.cn</a></div><div><b>CC:</b> <a href="mailto:ubuntu-devel-discuss@lists.ubuntu.com">ubuntu-devel-discuss</a></div><div><b>Subject:</b> Re: about upstart</div></div></div><div><div>Hello yankun,</div> <div> </div> <div>yankun@iscas.ac.cn [2016-01-06 13:47 +0800]:</div> <div>> In ubuntu15.04,there is also upstart running when systemd is the init.So why to do this ? </div> <div> </div> <div>You are most probably seeing the session upstart process. User</div> <div>sessions haven't been converted away from upstart (to systemd or dbus</div> <div>activation) yet.</div> <div> </div> <div>Martin</div> <div> </div> <div>-- </div> <div>Martin Pitt | http://www.piware.de</div> <div>Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)</div> </div></blockquote> </body></html>