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34758 discussions

Some file management functions in the right mouse are missing
by sunyeping 11 Jun '17

11 Jun '17

Dear all, I recently installed CENTOS7. I find that Some file management functions, such as creating new file, arranging file by size, arranging file by data, etc., in the right mouse are missing, and the item "creating new folder is present, but it is grey. These right mouse items are availabe in centos 6. How could they be added in Centos 7? Thanks in advances. Yeping Sun

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C7, systemd, say what?!
by m.roth＠5-cent.us 09 Jun '17

09 Jun '17

I just updated a system - as in minutes ago, and log back in after it reboots, and this is in dmesg: [ 88.202272] systemd-readahead[484]: open(/var/tmp/dracut.fP4yj1/initramfs/usr/bin/loginctl) failed: Too many levels of symbolic links [ 88.202515] systemd-readahead[484]: open(/var/tmp/dracut.fP4yj1/initramfs/usr/lib/systemd/system/dracut-emergency.service) failed: Too many levels of symbolic links Anyone know what this is - some weird bug, a garbage message? mark

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test builds on private server updates (mesa, kernel)
by Andreas Benzler 09 Jun '17

09 Jun '17

Hello Guys, I really wanted to just update mesa. But the Linux kernel was also done quickly. - Mesa 17.1.2 (remove sanitizy check, otherwise fail to built) - Kernel 4.11.4 can be found at: http://centos.cms4all.org/repo/7/kernel/ http://centos.cms4all.org/repo/7/mesa/ Unfortunately still no time found to care about winehq. OK. My daughter plays under the same driver stack in manjaro linux World of Warcraft for hours and my Fedora in the business also runs stable over several days without failures. https://copr.fedorainfracloud.org/coprs/andybe/ Good night. Andy

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using autofs on C-7
by Fred Smith 09 Jun '17

09 Jun '17

Hi all! I'm trying to set up autofs on my C7 netbook so I can automount a cifs share (actually two) from my NAS box, and because when I'm not at home I don't want it attempting to mount it. so I've read several howtos on it, including the one on the CentOS Wiki. but what I've got isn't working right, and I don't know why. I'm trying to follow the "even-better method", but am finding I don't understand the syntax of entries, so I'm flailing around trying different things. so, here's what I have now: in /etc/auto.master: /mnt/syno-fredex /etc/auto.syno-fredex I added /etc/auto.syno-fredex: /mnt/syno-fredex -fstype=cifs,rw,credentials=/root/.smbcred,defaults,uid=fredex,gid=fredex,noauto,users,exec,vers=3.0 ://nasbox/home my goal is to mount //nasbox/home as /mnt/syno-fredex so I do systemctl restart autofs and it appears to restart (no messages appear). when I then do "ls /mnt/syno-fredex" it doesn't appear to actually get mounted, and /var/log/messages doesn't show anything. I'd appreciate advice on this matter. thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- I can do all things through Christ who strengthens me. ------------------------------ Philippians 4:13 -------------------------------

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kvm/qemu and CPU load
by hw 08 Jun '17

08 Jun '17

Hi, I have a server using its 4 physical network interfaces bonded, with the bonding interface added to a bridge. The bridge has the IP, and three VMs are using the bridge. Two of the VMs are running Debian, one is running Windoze 7. CPU load caused by the qemu-kvm processes is way higher than I´m happy with. One of the Debian machine causes around 22% while it´s basically idle, the other one is around 3%, and the Windoze one is around 50. They are all mostly idle. I can observe that when some network traffic is going on with the Windoze machine, it causes a CPU load of 200%. "Some network traffic" means that virt-top is showing 1M/2M RX/TX. Considering that the bonding interface is theoretically capable of handling 4Gbit full duplex, the 3Mbit are neglectable. Virtio drivers are being used. Currently, virt-top shows 1.9% CPU for the Windoze machine and top shows 22% CPU load for the corresponding qemu-kvm process. There is almost not network traffic. The VM has 4 CPUs assigned. What may cause the high CPU load? Something must be seriously wrong for an idle machine causing 22% CPU load and for the same machine, still basically idle, with a some network traffic to cause 200% CPU load on a Xeon 5690.

2 2

C6 or C7 for an old netbook
by m.roth＠5-cent.us 08 Jun '17

08 Jun '17

I've got an old HP Netbook, which is just fine for taking with when I'm travelling, to check email and news. I have a very old Ubuntu netbook-remix on it, and it really, *really* needs to be updated to something current. I, of course, would prefer CentOS.... The question is: I see that *if* the specs I just looked up (I'm at work, not home, where I could just turn it on, but they sound right) Atom N270 CPU, 2G RAM, 160GB drive - what should I put on it, C6 or C7? Upgrading the memory's not going to happen, so it's got to live with that size. Opinions (please, no flame wars), just what will be most responsive on a machine this small? mark

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bind update flubbed somehow?
by Jason Welsh 07 Jun '17

07 Jun '17

hey folks, we upgraded bind last night to bind-9.8.2-0.62.rc1.el6_9.1.x86_64 and now our server seems to not be able to update. Whenever we add records and update the soa and reload, it still shows the old data.. so for example, we have [root@bind1 /var/named]$grep servername domainname.net.zone [root@bind1 /var/named]$nslookup -port=5353 servername 10.115.76.87 Server: 10.10.76.87 Address: 10.10.76.87#5353 Name: servername.domainname.net Address: 10.66.35.106 but when I grep the file from the zone file, it is not there.. grep servername domainname.net.zone <returns nothing> ive tried restarting the named a few times.. Im not seeing much that looks like its related in the logs.. any ideas? there is no selinux enabled here. Jason

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Crazy thought about upgrading to new major release
by Jerry Geis 07 Jun '17

07 Jun '17

I have older systems out there that work fine, just for what ever reason would be great to upgrade from a C5 -> C7 (due to no longer supported) or C6 > C7 (for updated packages). Sounds like the upgrade tool is not quite an option... I was thinking... What would be wrong with any "easy" script that did the following: 1) Removed all packages with the --justdb option. 2) Import the RPM-GPG-KEY-CentOS-7 3) install the centos-release-7.3.1611 ... rpm 4) yum -y upgrade 5) yum groupinstall "GNOME Desktop" (for example) and reboot of course. Does that have any chance or working and be valid? Thanks, Jerry

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Domain Logout, then domain login again, profile corrupt -> replaced by TEMP profile
by Jobst Schmalenbach 07 Jun '17

07 Jun '17

Hi I have had this problem for a while, but waited to post this until I upgraded to see whether the upgrade would fix it. I upgraded samba to the 4.2.X stream from 3.6.X stream, but it happens on both, 3.6.X and 4.2.10. Whenever someone logs out, then in again the profile gets corrupted and a new TEMP profile is created (the dreadful "creating new desktop"). Now I do not know where this problem is - the desktop or the server. It also happens if you wait 1/2 hour or so, never tried it longer. I can quickly fix this by: - tell the user to log out - rsync -avHAX the profile with yesterdays profile - tell the user to log in again Now if I log out on my workstation, then on the server I do a "smb reload", then log in again this problem does not happen. This morning a person logged out of his workstation, went over to the bigscreen in one of our training rooms and logged in there, then logged out, went over to his machine but got the dreadful "preparing desktop" on login .... Anybody got any idea? thanks Jobst Here is some info: ~~~~~~~~~~~~~~~~~~ All latest patches installed on everything. OS server: CentOS 6.X OS Workstations: Windows 7 Prof Samba: 4.2.10 (was 3.6.23) Other: roaming profiles (as we log into other stations, e.g. training rooms) smb.conf (important bits): [global] workgroup = LALA server string = Domain Server netbios name = LALAMACHINE username map = /etc/samba/smbusers interfaces = eth0, lo bind interfaces only = yes # these flags were recommended. socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=131072 SO_SNDBUF=131072 # Logging, what, how much, etc log level = 1 syslog = 0 log file = /var/log/samba/samba.log max log size = 10000000 # Auditing vfs objects = full_audit full_audit:prefix = %u|%I|%m|%S full_audit:failure = none full_audit:facility = LOCAL4 full_audit:priority = NOTICE full_audit:success = none full_audit:failure = none idmap config *: backend = tdb idmap config *: range = 1000000-1999999 idmap config LALA : default = Yes idmap config LALA : backend = <idmap backend> idmap config LALA : range = 500-999999 winbind use default domain = Yes winbind nested groups = Yes winbind normalize names = no # domain stuff logon script = user.cmd logon path = \\lalamachine\profiles\%u logon drive = Z: logon home = \\lalamachine\%u\samba-homeshare domain logons = Yes os level = 200 domain master = Yes dns proxy = No wins support = Yes security = user encrypt passwords = Yes hosts allow = 192.168.0., 127. guest account = nobody usershare allow guests = No # printer setup load printers = Yes printing = cups printcap name = cups printcap = cups printcap cache time = 750 cups options = raw read raw = yes write raw = yes oplocks = yes max xmit = 65535 dead time = 15 getwd cache = yes # Samba implements the CIFS UNIX unix extensions = no [netlogon] comment = Network Logon Service path = /samba/NetLogon browseable = Yes guest ok = yes admin users = root full_audit:success = none full_audit:failure = none # this is required for log files to be written to read only = No write list = @lalausers, @lalaadmins [profiles] comment = Roaming Profile Share path = /samba/Profiles/ read only = No create mask = 0600 directory mask = 0700 browseable = yes # you MUST disable caching on shares that have roaming profiles stored csc policy = disable guest ok = no valid users = @lalausers, @lalaadmins admin users = root store dos attributes = yes profile acls = yes full_audit:success = none full_audit:failure = none -- Keyboard not found - please clean up desktop! | |0| | Jobst Schmalenbach, jobst(a)barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia

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weird SELinux denial
by Vanhorn, Mike 06 Jun '17

06 Jun '17

I keep seeing this in my audit.logs: type=AVC msg=audit(1496336600.230:6): avc: denied { name_connect } for pid=2411 comm="dbus-daemon" dest=111 scontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket Was caused by: The boolean allow_ypbind was set incorrectly. Description: Allow system to run with NIS Allow access by executing: # setsebool -P allow_ypbind 1 The weirdness is that when I check allow_ypbind, it’s already on: # getsebool allow_ypbind allow_ypbind --> on # Does anyone with more experience with SELinux than me have any idea why this is happening? --- Mike VanHorn Senior Computer Systems Administrator College of Engineering and Computer Science Wright State University 265 Russ Engineering Center 937-775-5157 michael.vanhorn(a)wright.edu

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