Hi, Thanks for your advice. I ran make install as root, and there was no "Permission denied" error. Log files are attached to this email. Pls help check this problem. Thank you. Best Regards, Xinke ________________________________ From: Pau Espin Pedrol <pespin@sysmocom.de> Sent: Monday, January 29, 2018 11:36 To: XINKE ZHANG; osmocom-net-gprs@lists.osmocom.org Subject: Re: Problem when building OsmoSGSN Hi, it's difficult to say if you don't provide any log or detailed information other than "it is not working", but from your input I'd say that usually you need to run make install as root (sudo make install). If you check more closely you will see that it most probably is outputting some "Permission denied" error during that step. -- - Pau Espin Pedrol <pespin@sysmocom.de> http://www.sysmocom.de/ sysmocom - custom-tailored mobile telephony solutions<http://www.sysmocom.de/> www.sysmocom.de News: sysmocom introduces new sysmoBTS 2100. The sysmoBTS 2100 is a new, low-power, small-formfactor IP-backhaul GSM BTS for medium coverage outdoor applications. ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte