Re: kdevelop on sl6.3
You could try the SL5 version. A little bit of googling found http://stackoverflow.com/questions/7340375/why-there-is-no-kdevelop-on-centos-6 Steven Yellin On Mon, 18 Mar 2013, Mahmood Naderan wrote: Hi I want to install kdevelop on SL6.3. However it is not available in the default repositories plus epel. What is the correct repository then? Regards, Mahmood
Re: Help finding a hardware problem (I think)
The atop service from epel logs processes into /var/log/atop files. You can run 'atop -r ...' interactively on the file being updated at the time the computer froze in order to see what was happening just before it happened. Steven Yellin On Tue, 23 Apr 2013, Joseph Areeda wrote: On 04/23/2013 11:44 AM, Joseph Areeda wrote: Greetings, I'm having this strange behavior that I think is a hardware problem I can't find. I can usually run for 4-8 hrs without a problem then all of a sudden I get one of the following: * System freezes, mouse and keyboard dead, sshd unresponsive sometimes * if the keyboard is alive going to an open terminal I get one of the following errors about equally probable: o input out put error o too many files open o bus error o may be others that haven't happened for a while I've run memtest for 10 hrs, no problem. Fsck shows now problem, disk utility show those with SMART are all fine. I have now found any particular program or operation that causes the failure. Any suggestions on how to find the cause. I'm just about ready to sacrifice a small animal as soon as I find the old gypsy woman who reads the entrails and tells me which part to replace. Thanks, Joe Sorry about the typos in my first message. I wanted to add that Einstein at Home runs both CPU and GPU jobs and they validate, so those parts don't have any hard failures. And lm sensors show temperatures in the 30-50 °C range depending on what's running. And the system has been running well for over a year so I don't think it's a build problem. I'm looking for any way to test more. Joe
Re: SL5.9 kernel update problem.
You said initrd lines were erased in grub.conf and the initrd* files in /boot/grub were renamed. That's weird! I assume you have already tried editing grub.conf to adapt it to the renamed initrd files, and since you didn't say so, I assume that vmlinuz-2.6.18-348.18.1.el5 was not renamed. If I'm mistaken, grub.conf should be edited accordingly, or the files should be renamed back so as to be consistent with grub.conf. I've no experience with a problem like yours, so I'll just guess that something interfered with installation of the kernel rpm at an especially bad step in the process. Check with rpm (within chroot to your normal root file system from, say, a Live USB) that it thinks kernel-2.6.18-348.18.1.el5.x86_64 is installed. Verify that there's a directory /lib/modules/2.6.18-348.18.1.el5 with over 100 MB in it, and that in addition to the strangely renamed initrd file, /boot has files config-2.6.18-348.18.1.el5, symvers-2.6.18-348.18.1.el5.gz, System.map-2.6.18-348.18.1.el5, and vmlinuz-2.6.18-348.18.1.el5. If the latest SL5 kernel rpm is not installed, or even if it already is, you could try installing or reinstalling it or an older one. Steven Yellin On Tue, 1 Oct 2013, Franchisseur Robert wrote: Hello, after kernel update I almost have trouble caused by dkms (I think it is since the last mkinird package). After the update when rebooting there were many error messages but I can boot. But at next reboot I got a kernel panic. Kernel panic - not sncing VFS : Unable to mount root fs on unknown-block(0,0) This is often due to the fact that the file grub.conf has been erased, so it is easy to repair whith a Live USB, but this time it was because all the lines initrd /initrd-2.6.18-x.y.z.el5.img have been erased in grub.conf and all the initrd-2.6.18-x.y.z.el5.img were renamed initrd-2.6.18-x.y.z.el5.img.dup_orig Is it possible to do an mkinitrd from a live rescue USB disk as I cannot boot with any of my 4 previous initrd files : initrd-2.6.18-348.6.1.el5.img.dup_orig initrd-2.6.18-348.12.1.el5.img.dup_orig initrd-2.6.18-348.16.1.el5.img.dup_orig initrd-2.6.18-348.18.1.el5.img.dup_orig Thanks for your help. -- Best regards, Robert FRANCHISSEUR Apollo_gist :-)___ | Robert FRANCHISSEUR Phone : +33 (0)950 635 636 | | 30 rue René Hamon Phone : +33 (0)1 46 78 37 29 | | F-94800 VILLEJUIFe-mail : Robert at Franchisseur . fr | ---
Re: blue griffon current production successfully built
Python2.7 can be installed in, say, /usr/local/..., while leaving 2.6 (or for SL5, 2.4) as the default version. When you then need to use version 2.7 there may be some pain with libraries, but perhaps not too much to endure. Steven Yellin On Mon, 14 Oct 2013, Nico Kadel-Garcia wrote: I took a look a thte Fedora SRPM's, which unfortunately ended about 3 years ago with a very out of date release. The current release requires Python 2.7, which is begging for pain to install on an SL 6 system. SL 7 should be much more compatible with current releases. On Mon, Oct 14, 2013 at 9:42 PM, Yasha Karant wrote: On 10/14/2013 04:20 PM, ToddAndMargo wrote: On 10/14/2013 04:18 PM, Yasha Karant wrote: I now have built from source BlueGriffon for X86-64 SL6x, version 1.7.2.99.20130729, Build 20131013142156, Codename 'Cla-de-Lue' I can provide detailed instructions or just a copy of both the mozconfig file used for the build and the typescript of the building. I have had to add a few RPMs to SL6x from other distributions. There was a query on a different thread (same general topic, but a different subject line) as to why I used a 5x CentOS RPM for one of the dependencies of the build. I could not find a 6x EL version. The application was not a systems application that would overwrite/override other files, and seemed to be constrained with a unique identifier. My experience is that many EL 5 and even EL 4 applications still "work" with EL 6, as did this. Presumably, if the EL 6 version is available, that too would work. Yasha Karant Do you have a place to download the RPM? I have the full directory as well as the built files -- but the source code did not come with any obvious configuration/script software to build a RPM. Moreover, I do not have the personnel resources to support this application for future updates, although I expect that the steps that I did will work for such updates. I have not built this for the IA-32 platform, only X86-64. Is anyone with an IA-32 SL6x development system willing to repeat the exercise to produce an IA-32 platform version? Can you supply the necessary information to build a RPM as well as properly specify dependencies? Yasha Karant
Re: how to change the CD mount point
Here's a line from /etc/fstab on an SL5 machine. It might work for SL6, too, assuming you have a /mnt/cdrom directory: /dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0 Or maybe it would work to instead make make /media/CDROM_ into a symbolic link to /mnt/cdrom before loading the CD. Steven Yellin On Tue, 15 Oct 2013, Edison, Arul (GE Healthcare) wrote: HI, I am porting my application from Redhat to Scientific Linux 6.3 In Scientific Linux, the CD is mounted to mount point /media/CDROM_ I would like to change the mount point location to /mnt/cdrom Any idea what is the configuration to change this? Thanks, Arul
Re: Outgoing ssh logs
If the atop daemon is running you should have files with a record of what's going on during each 10 minute period. For example, suppose your current path is /var/log/atop, you want to look in the atop file for 3/2/2014 (whose name is "atop_20140302"), and want information about commands like "ssh someb...@x.fnal.gov". atop -r atop_20140302 -P PRG | grep "x.fnal.gov" > x.txt will put into file "x.txt" one line for each process alive during each 10 minute period, provided the line contains the string "x.fnal.gov". Type 'man atop" for an explanation of the information on each line for the PRG label. Included in the information is the uid of who gave the ssh command and when it was given. Steven Yellin On Mon, 3 Mar 2014, vivek chalotra wrote: Hello all, I want to see ssh logs of the past few days from my system to a particular system outside our network. I looked into /var/log/secure but it does not contain outgoing logs. How to do that. Its urgent, any help would be appreciated. Regards Vivek Chalotra
USB-3.0 with SL5
I want to use USB-3.0 on a x86_64 computer now running SL5.1, but don't want to go to SL6.x. Is there a reasonably easy way to get a USB-3.0 driver on SL5.x? Steven Yellin
Re: how to add packages that are not in the repo?
If the rpm name ends with "x86_64.rpm", it's for 64 bit. So far as I know, everything else, such as "i386.rpm", "i586.rpm", "i686.rpm", are for 32 bit. Steven Yellin On Sat, 30 May 2015, Tini wrote: i want to get 'mplayer' and the 'smplayer' front end but they are not in EPEL. so i'll either have to find a repo that has them or i will have to get them from an outside source. it's in pkgs.org, does anyone know which one of these versions is 32-bit? http://pkgs.org/download/mplayer i am totally new to sl, that's why i'm asking about packages.
Re: yum-cron is broken
For 6.X I use yum-autoupdate, not yum-cron, and it works fine, nightly running /etc/cron.daily/yum-autoupdate guided by /etc/sysconfig/yum-autoupdate. Steven Yellin On Sun, 26 Jun 2016, Saint Michael wrote: ÿÿI installed yum-cron, and the comnfiguration file /etc/yum/yum-cron.conf is not installed. The package does not work. I use version 6.X and 7.X, in both cases this critical package does not work.ÿÿ
Re: Moving from SL 6.7 to SL 6.8
I also didn't do a fresh install for 6.6 to 6.7; it happened automatically overnight via yum-autoupdate. I then had to downgrade the glibc rpms to revive some of our software that uses matlab. It may be fortunate that autoupdates to 6.8 have been blocked by "Metadata file does not match checksum" in mirrors. I've just changed "enabled=1" to "enabled=0" in /etc/yum.repos.d/sl6x.repo to allow continued upgrades of 6.7 rpms without moving to 6.8. Steven Yellin On Sat, 16 Jul 2016, John Pilkington wrote: Now that SL 6.8 has been released, many packages in the sl6x-related repos are shown as upgradeable, but the release announcement still includes the warning that: There should be no expectation that a "yum" upgrade to SL 6.8 will work. A new install is the recommended method to move from "sl6rolling" and the released SL 6.8. Does this still apply? When I first saw it I assumed that it referred specifically to the RCs, but it's still there, post-release. I'm pretty sure I didn't do a fresh install for 6.6 > 6.7 Thanks, John Pilkington
Re: Python 2.7 OS requirements
Another way is to get Python-2.7.12.tar.xz from https://www.python.org/downloads/, extract into directory Python-2.7.12 with 'tar -xJf Python-2.7.12.tar.xz', and see its README file for what to do next to get it in /usr/local. Steven Yellin On Sun, 31 Jul 2016, Steven Haigh wrote: You can look at virtualenv from EPEL. You can install a separate python environment in a users home directory. On 31/07/16 09:36, P. Larry Nelson wrote: Hi all, Please don't shoot the questioner (me), as I have no experience with Python, other than knowing "what" it is and that my SL6.8 systems have version 2.6.6 installed. I have been asked by one of our Professors that one of his grad students apparently needs Python 2.7.x installed on our cluster (optimally in /usr/local, which is an NFS mounted dir everywhere). In my brief Googling, I have not found OS requirements for 2.7.x, but have inferred that it probably needs SL7.x. Can anyone confirm that? Or has anyone installed Python 2.7.x (and which .x?) on an SL6.8 system without replacing 2.6.x? I'm guessing this can be quite a morass to delve into as when I do a 'rpm -qa|grep -i python|wc' It returns with 67 rpms with python in the rpm name! If the solution is indeed simple, I might proceed, otherwise, I'm of a tendency to reply to the Professor and student, "No way - won't work." I think the student probably has access to CERN systems that probably have what he's looking for. I've followed up with that inquiry to the student and waiting to hear back. Thanks! - Larry -- Steven Haigh Email: net...@crc.id.au Web: https://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897
Re: Regarding latest Linux level 3 rootkits
Are rpm and the check sum tools statically linked? If not, hiding
copies of them might not help if libraries have been compromised. But
busybox is statically linked, and it looks like it can be easily used to
replace most commands used to check security without going to the trouble
of pulling files from it. For example, 'ln -s busybox md5sum' allows use
of busybox's md5sum and 'ln -s busybox vi' allows use of its vi. See
https://busybox.net/FAQ.html#getting_started .
Steven Yellin
On Wed, 7 Sep 2016, prmari...@gmail.com wrote:
Jdow,
Why are you looking at thatÿÿ for root kit prevention? It's a very old
fashion approach, I would use the RPM's verify command or one of the
many filesystem check sum tools available for that instead. Either one
can tell you if ÿÿany critical binaries or libraries have been
compromised very easily and there are even tools built around them to do
it on a network wide level. Further more if you really want to make your
systems resistant to root kits, readonly mount of / and /usrÿÿ is still
your best bet, even Red Hat products like RHEV use that method on
appliances.
Original Message
From: jdow
Sent: Wednesday, September 7, 2016 19:09
To: scientific-linux-users@fnal.gov
Subject: Re: Re: Regarding latest Linux level 3 rootkits
Thanks Vladimir,
I suppose I could pull the necessary files from busybox as a means of keeping a
more generic Linux system in security trim. This might be a useful tool set to
suggest upstream. A statically linked less would allow a quick check for the
hidden user. A statically linked chkrootkit would find the bad file size for the
affected glib libraries.
{^_^} Joanne
On 2016-09-07 03:36, Vladimir Mosgalin wrote:
Hi jdow!
ÿÿ
On 2016.09.06 at 23:15:04 -0700, jdow wrote next:
Is there any source for a VI, VIM, or even EMACS that has all libraries
compiled into it statically? That would make monitoring for the rootkit much
easier. The same could be said for utilities such as chkrootkit. With
compiled in static libraries these level three (user space) rootkits can't
edit the results you get, as easily. (Any file system components in user
space would also have to be statically linked.)
Busybox would work. It's usually build statically (either that, or it's
easy to make that kind of build) and includes vi clone. Very poor man's
vi, just like other busybox utilities, but nevertheless. Current version
supports some neat stuff like autoindent and undo.
Re: xmgr in scientific linux
With SL6, and probably with SL7, 'yum install epel-release' adds epel to the repositories your computer knows about, then 'yum install grace'. Steven Yellin On Tue, 13 Dec 2016, Omer Ali wrote: Good morning I'm new to scientific Linux. I want to install xmgr grace but I couldn't find it for scientific Linux. Can please one show me where to find it and how to install it in my computer. Thanks for your help. Regards Omer
Re: Rebooting after Windows 'restart'
I've never had such an error, and haven't yet moved from SL6 to SL7. But out of curiosity I googled error getting authority error initializing authority could not connect There are several pages with explanations and suggestions, such as trying 'journalctl -xb' to see what went wrong and/or adding the option nofail to the failing mount point or all the mount points that are not required at boot time. Steven Yellin On Mon, 20 Feb 2017, MAH Maccallum wrote: My laptop is set up to dual boot Windows 10 and SL7. I had backed up all my Linux files and made a Windows 7 style backup of the Windows partition. Then I accidentally exited Windows by 'restart' rather than 'shut down'. The result is I cannot reboot the Linux. I get my usual grub menu but trying to start Linux from it gets (after a couple of warnings which are the same I had before): Welcome to emergency mode!. and trying either of the suggested 'systemctl reboot' or 'systemctl default' leads to a message Error getting authority: Error initialising authority: Could not connect: No such file or directory (g-io-error quark,1) I can boot from a Live USB and mount the linux partitions. I am pretty confident therefore that no data has been lost from them. Is there a way to recover short of wiping the disk and reinstalling from the beginning? Malcolm MacCallum
RE: Security ERRATA Important: kernel on SL6.x i386/x86_64
Last November I was "automatically removed from the SCIENTIFIC-LINUX-USERS list (Mailing list for Scientific Linux users worldwide) as a result of repeated delivery error reports from your mail system." So one possibility is that your mail system is occasionally failing to deliver mail to you from this list, but you haven't yet been removed. In my case, the reason was that the listserver sometimes sends email with a header longer than 32768 bytes, which the SLAC mail system couldn't handle. FermiLab said such long headers are becoming necessary because "cloud systems that everyone has and will be moving to, add additional diagnostic info in the headers so if people report any errors, they can more easily be diagnosed." The solution was to convince the managers of SLAC's mail system to increase their incoming header size parameter. Steven Yellin On Wed, 21 Jun 2017, Bill Maidment wrote: Hi. Is there something wrong with this mailing list? I received this response, but I never received the original message. This is not the first time I have noticed this. Cheers Bill -Original message- From:Stephan Wiesand Sent: Wednesday 21st June 2017 2:58 To: scientific-linux-us...@listserv.fnal.gov Subject: Re: Security ERRATA Important: kernel on SL6.x i386/x86_64 Kudos to the SL team at FNAL for once again getting the updates for a really nasty issue out incredibly quickly. Impressive. -- Stephan Wiesand DESY -DV- Platanenenallee 6 15738 Zeuthen, Germany
Re: Red text on console
In bash under SL6 the terminal text turns red with the command echo -en '\E[31m' and turns back to black with "Reset" under "Terminal" or with echo -en '\E[30m' I don't know how it came to turn red unintentionally for you, but I'll bet this works under 7.5, too. Steven Yellin On Mon, 30 Apr 2018, Orion Poplawski wrote: With the recent 7.5 security updates I'm now seeing red text on the console instead of white. Is anyone else seeing this? Is this expected? -- Orion Poplawski Manager of NWRA Technical Systems 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane or...@nwra.com Boulder, CO 80301 https://www.nwra.com/
Standalone disk move to a raid controller?
I have a standalone, non-raid, SATA drive from a currently non-functional computer. I'd like to read the drive by moving it to a computer whose only bays are on a 3ware raid controller. What should I do to make this work? The computer runs SL 6.10 with kernel 2.6.32-754.2.1.el6.x86_64, and the controller model is 9750-24i4e. Steven Yellin
Re: numfmt issue on SL 7.9; possible bug?
I get the same 'nan' on three SL 7.9 computers, but it works ok on a CentOS 7.9 machine. Here is an excerpt from 'rpm -qi coreutils' on CentOS 7.9: Source RPM : coreutils-8.22-24.el7_9.2.src.rpm Build Date : Mon 16 Nov 2020 02:24:59 PM PST Build Host : x86-01.bsys.centos.org and here is the same from SL 7.9: Source RPM : coreutils-8.22-24.el7_9.2.src.rpm Build Date : Tue 10 Nov 2020 09:07:17 AM PST Build Host : sl7.fnal.gov Steven Yellin On Wed, 10 Feb 2021, ~Stack~ wrote: Greetings, Curious if anyone else can replicate this. I initially saw this in a certain upstream vendor 7.9, but I'm having issues replicating it and it's only in a certain environment (virtual and I've done strange and awful things to that as I've been trying to understand an unrelated project). However, I was trying to figure out if it was other places as well. Sure enough, I can replicate it on every single one of my SL 7.9 instances that I've tested. The short, numfmt should not return 'nan' when passed a zero. $ echo 0 | numfmt nan $ rpm -q coreutils coreutils-8.22-24.el7_9.2.x86_64 If I try on any other distro (Ubuntu/Debian/CentOS 8), it returns 0 as it should. $ echo 0 | numfmt 0 $ rpm -q coreutils coreutils-8.30-8.el8.x86_64 I may not be able to replicate it as reliably as I would prefer on upstream vendor, but every single SL 7.9 system I've tried has had coreutils-8.22-24.el7_9.2.x86_64 and incorrectly returns 'nan'. I'm hoping the devs can confirm and/or offer suggestions. Thanks! ~Stack~
