Discuss December 2016

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115 participants
120 discussions

CentOS 7, ATI video, ex-X
by m.roth＠5-cent.us 16 Dec '16

16 Dec '16

A user running gnome came in this morning, clicked on the application menu... and it was much shorter than he expected. He could get to firefox, and googled about refreshing that... and found something that told him to reboot. And that's it: I cannot get X up, at all. I just get the "oh, no, something failed, please log out and try again". Fully updated CentOS 7, [AMD/ATI] Oland [Radeon HD 8570 / R7 240/340 OEM], and, like most of us, he uses two monitors. . I've tried removing the xorg.conf, and renaming /etc/X11/xorg.conf.d/20-fglrx.conf, which was there (I didn't put it there when I built the box a few months ago.) I don't see anything even vaguely useful in the Xorg logs... and, for that reason, not sure why I'm on Xorg.3.log, other than it may have been created by startx. I've tried that, both as root, and as myself, get that "oh, no" screen, and when I hit enter to log out, I get a live but black screen, completely unresponsive. I don't see any errors in dmesg or messages, and I've tried reinstalling xorg-x11-drv-ati, which gives me xorg-x11-drv-ati-7.6.1-3.20160215gitd41fccc.el7.x86_64. Does anyone have any ideas on this? I can't even get a single screen working, though it's mirrored, of course, in text mode. mark

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Re: [CentOS] Panic on boot with 7.3 kernels when decrypting hard drive
by Christopher St. Louis 16 Dec '16

16 Dec '16

>> You need to capture the actual panic, or else it's just guessing. >> Boot without the rhgb quiet kernel args. >> >> Also check it's not just something silly like running out os space >> on /boot causing incomplete/corrupt initramfs. >> >> jh Thanks for the advice. Df reports that /boot has 80% free space right now; I would assume that's enough but I don't know. I need to remove a few of the old kernels I've got taking up space. There are a few initramfs-*kdump.img files that have appeared that I assume might be helpful in tracking down the problems? I changed the boot arguments (and also added the args to automatically reboot following a panic, which fixes one of my problems), and I'm definitely getting kernel panics. Both 4.4.39-1 and 4.9.0-1 end up with pretty much the same issue: "Kernel panic - not syncing: Fatal exception in interrupt." I know the details of the panic can/should be kept in a log somewhere, but that's where my limited experience fails me--I see references to Xorg.0.log and boot.log online, but those seem to only keep the details of the most recent boot. I used the not-so-high-tech method of taking a photo of my laptop's screen output before it restarted, and it seems like the panic details for both kernels started with a "BUG: unable to handle kernel NULL pointer dereference at 0000000000000008" and followed shortly by an "Oops: 0000 [#1] SMP." Beyond that, the behavior seems to be somewhat inconsistent--the first time I booted the 4.9 kernel without the quiet rhgb args it seemed to hang on something related to ipv6 setup without actually getting into a panic, but I foolishly didn't capture any of the other details. The pre-7.3 4.4.36-1 kernel that had been working just fine now seems to fail in a panic every other boot, and I'm currently working from within the latest 3.10.0-514 kernel that came with 7.3, which had previously failed to boot in a panic as well. This is somewhat embarassing because I was feeling pretty confident that I had pretty much gotten the hang of regular Linux use, but now it feels like I somehow caused some major problems when I updated to 7.3 (though I didn't do anything beyond "yum update.") If I were back on Windows, this would be the part where I backup my files and start from a fresh install, since that was usually the least painless way to fix major system problems. Is there a possibility that this is fixable, or would that be a good strategy to employ here? Or does this suggest something more serious, like a hardware issue? My apologies for dragging beginner's issues here into a mailing list for an enterprise OS; CentOS just works so nicely, decently responsive with low resource usage and was (up until now) completely stable on my aging X301. Thanks again.

1 0

libgme drive-by exploit.
by Lamar Owen 16 Dec '16

16 Dec '16

An interesting exploit: https://scarybeastsecurity.blogspot.com/2016/12/redux-compromising-linux-us… While this is tailored to Fedora 25 (with Chrome) and Ubuntu 16.04, in checking my CentOS 7 system I find that it is not vulnerable simply because it doesn't have the libgme used by gstreamer-plugins-bad to make it work. However, gstreamer-plugins-bad-free is indeed installed, and is listed as an installation from anaconda, so it is on the media. I didn't specifically select it in the package set I installed. I didn't look to see if any third-party packages have it.... lessee.... nope, didn't find the 'Game Music Emu' (gstreamer-plugins-bad-extras contains this in Fedora 25) anywhere, but I reserve the right to be wrong. Now, even though C7 is not vulnerable by default, following Chris Evans' narrative on how he dug this out and made it reliably exploitable is a very good read, especially if you want to see what kind of trampoline can actually be employed by those who really are out to get us.

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Looking for DirectFB 1.4.11 RPMs for 32-bit CentOS 6
by Alfred von Campe 16 Dec '16

16 Dec '16

Our current build process requires the directfb-1.4.11-3.el6.i686.rpm and directfb-devel-1.4.11-3.el6.i686.rpm packages, but they appear to be no longer available from the EPEL repo, and I can’t find them anywhere else either. If you have a local copy, or can point me to some other repo or web site that has these 2 RPMs, I would really appreciate it. Thanks, Alfred

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Problem with yum on CentOS Linux release 7.2.1511 (Core) with 3.10.0-327.36.3.el7.x86_64 kernel
by Gregory P. Ennis 15 Dec '16

15 Dec '16

Everyone, I am at a loss on this problem would appreciate some guidance as to where to start to fix it. I noticed that my home gateway server was not being updated with the new kernel and other software, and when I ran yum it aborted with the following notices. I tried a yum clean all, but this did not fix the problem. I thought the problem may be related to one of the repos, but I have other machines in the same network that update properly. I disabled all repos except the BASE to try to simply the problem and still the same problem. Any help would be appreciated. Thanks, Greg Ennis Loaded plugins: aliases, changelog, fastestmirror, langpacks, product- id, search- : disabled-repos, subscription-manager, tmprepo, verify, versionlock This system is not registered with Subscription Management. You can use subscription-manager to register. base | 3.6 kB 00:00:00 (1/2): base/7/x86_64/group_gz | 155 kB 00:00:00 (2/2): base/7/x86_64/primary_db | 5.6 MB 00:00:01 Determining fastest mirrors * base: centos.mirror.lstn.net Traceback (most recent call last): File "/usr/bin/yum", line 29, in <module> yummain.user_main(sys.argv[1:], exit_code=True) File "/usr/share/yum-cli/yummain.py", line 365, in user_main errcode = main(args) File "/usr/share/yum-cli/yummain.py", line 174, in main result, resultmsgs = base.doCommands() File "/usr/share/yum-cli/cli.py", line 573, in doCommands return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds) File "/usr/share/yum-cli/yumcommands.py", line 500, in doCommand ret = base.updatePkgs(extcmds, update_to=(basecmd == 'update-to')) File "/usr/share/yum-cli/cli.py", line 1015, in updatePkgs self.update() File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 5114, in update tx_return.extend(self.update(po=new)) File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 5328, in update available_pkg, updated_pkg) File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 5033, in _add_up_txmbr txmbr = self.tsInfo.addUpdate(upkg, ipkg) File "/usr/lib/python2.7/site-packages/yum/transactioninfo.py", line 518, in addUpdate self.add(txmbr) File "/usr/lib/python2.7/site-packages/yum/transactioninfo.py", line 289, in add self.addUpdated(oldpo, txmember.po) File "/usr/lib/python2.7/site-packages/yum/transactioninfo.py", line 547, in addUpdated txmbr = TransactionMember(po) File "/usr/lib/python2.7/site-packages/yum/transactioninfo.py", line 830, in __init__ po.yumdb_info.get('from_repo') File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1946, in get res = self._read(attr) File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1861, in _read info = misc.stat_f(fn, ignore_EACCES=True) File "/usr/lib/python2.7/site-packages/yum/misc.py", line 962, in stat_f return os.stat(filename) OSError: [Errno 5] Input/output error: '/var/lib/yum/yumdb/f/27ef8f508b150c2162f1bdcb1bc41713836b88ee-fence- agents-ipdu-4.0.11-27.el7_2.9-x86_64/from_repo'

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[FYI] yum error message: Error: database disk image is malformed
by geo.inbox.ignored 15 Dec '16

15 Dec '16

when i tried to update a new install; ~]$ sudo yum -y update Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Update Process Determining fastest mirrors * base: repos.dfw.quadranet.com * extras: repos.dfw.quadranet.com * updates: repos.dfw.quadranet.com extras | 3.4 kB 00:00 extras/primary_db | 37 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 3.7 MB 00:02 Error: database disk image is malformed ~]$ ran a web search, which produced 'about 408 results'. skimmed thru them looking for a favorable url, which was; forums.fedoraforum.org/showthread.php?t=308521 which led to these 2; ~]$ sudo yum clean dbcache ~]$ sudo yum history new system is now updateing without errors. hope this is help to anyone who man have problem. -- The important thing is not to stop questioning. - Albert Einstein CentOS GNU/Linux 6.8 KDE 4.3.4 peace out. tc,hago. g . =+= Tired of having your microsoft os hacked? Change to Linux os, used by microsoft hackers. =+= If Bill Gates got a dime for every time Windows crashes... ...oh, wait. He does. THAT explains it! =+= in a world with out fences, who needs gates. =+=

1 0

gstreamer1-plugin-openh264
by Jerry Geis 15 Dec '16

15 Dec '16

Has anyone used this on CentOS 7. Know where I can get it? Does it work to encode h264? Thanks, Jerry

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raid 6 on centos 7
by popeeni＠chmail.ir 15 Dec '16

15 Dec '16

i have 6 sata hdd 2 TB . i want install centos 7 on these hdd in raid 6 mode. how can i do it ?

3 2

test builds on private server upates
by Andreas Benzler 15 Dec '16

15 Dec '16

Hello Guys, update my repo with - linux kernel 3.8.14 - Mesa 13.0.2 with LLVM 3.9.0 + radeon si fix - Fix depends on AMDGPU driver (X11) - drivers section. Sincerely Andy Example here R9 280x [andy@localhost ~]$ glxinfo | grep ^OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.46.0 / 4.8.14-1.el7.centos.x86_64, LLVM 3.9.0) OpenGL core profile version string: 4.3 (Core Profile) Mesa 13.0.2 OpenGL core profile shading language version string: 4.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 13.0.2 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 13.0.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions

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kde failing???
by geo.inbox.ignored 15 Dec '16

15 Dec '16

greetings. centos 6.8 kde 4.3.4 toshiba satellite l4550-s5976 laptop - part 1: clock losing time first noticed time was off by 8 min, reset via F2 cl terminal. ~40 min later, off by ~2 min, reset via 'service manager' by stopping ntpd, count 20, started ntpd, within a few seconds, clock reset to correct time. ~1 hour later, noticed clock off again, considered cause to be cmos battery failing. after removing ~30 screws and bottom cover, found that cmos batter was soldered to board. checked with dvom, voltage read 3.2v with main battery and charger removed. ran web search on tower box to find that cmos battery is a rechargeable 3.0 v battery and being that removing screws and cover took several minutes, with battery being up, cause must be elsewhere. note - noticed that a time problem was occurring just after tzdata update on 2016-1201. was not able to pursue further due to next problems. - part 2: unable to open knoqueror file browser [kfb]. having other things to do other than worry about time problem, decided move a few files around and give further thought to time problem before opening thunderbird to post problem. with several other kfb's open, decided to open another. not. clicking kfb icon started opening of kfb, but it shut down within a couple seconds. repeated attempt 4 more times, all failed. have previously had at least 10 kfb's open and never had a problem with opening additional. strange, thought i. decided to reboot system to see if problem cleared. now way. new problem. - part 3: kde desktop fails to run. system rebooted to default desktop manager, entered password, kde starts to load, drops out, desktop manager reruns. able to login as 'root' using kde no problem. any and all help/suggestions greatly appreciated. tia. -- The important thing is not to stop questioning. - Albert Einstein peace out. CentOS GNU/Linux 6.8 tc,hago. g . =+= Tired of having your microsoft os hacked? Change to Linux os, used by microsoft hackers. =+= If Bill Gates got a dime for every time Windows crashes... ...oh, wait. He does. THAT explains it! =+= in a world with out fences, who needs gates. =+=

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Discuss December 2016