Re: [SCIENTIFIC-LINUX-USERS] XFS vs Ext4

We use EXT4 mostly. We find it to be more robust for lab machines, and more efficient for VMs. XFS is limited to cases where its more advanced features are useful. We treat our user facing systems as being "disposable", if they develop a software/filesystem issue we usually wipe and reinstall

Re: [SCIENTIFIC-LINUX-USERS] Fermilab/CERN recommendation for Linux distribution

We moved to Centos 8 for user facing servers, from Fedora, during the pandemic. We needed more stability. We switched to AlmaLinux 8 a few months before the Centos 8 went EoL (using the AlmaLinux migration script). We now use AlmaLinux 9 and have no regrets. On the topic of dnf vs. yum. From

Re: [SCIENTIFIC-LINUX-USERS] perfect chick / egg problem

Back in the day, using Xorg. If you login to the console as a user, and then run an X app as root, then root can't talk to the X server because it doesn't have the shared secret in the user's ~/.Xauthority file. For non-NFS user home directories you can get around this by setting the XAUTHORITY

Re: [SCIENTIFIC-LINUX-USERS] perfect chick / egg problem

Did you use the DVD image? If you want a self-contained install, then the DVD ISO is a must. You need an 8GB or larger flash drive. The minimal and boot ISO are for use with things like Packer where you just need to run the installer and get the rest of the install over the network. Having said

Re: [SCIENTIFIC-LINUX-USERS] Fix Linux Login Loop

Get at text console, pressing Control-Alt-F6 works on a test system I have here (other function keys may work). If you still can't login there may be more messages pointing at the cause. If you can login then it may be the disk or quota is full. It may also be that you added a command to you

Re: [SCIENTIFIC-LINUX-USERS] Fermilab/CERN recommendation for Linux distribution

We (small CS department) went with AlmaLinux. It too came out with 8.4 in a very short time frame. On Centos it usually took a few weeks, so I was unprepared for it to be so quick. I only noticed when our clients reported a different version. New installs are now AlmaLinux and existing Centos8

Re: [SCIENTIFIC-LINUX-USERS] google-chrome

Somebody has reported the issue to the Chromium project:

Re: [SCIENTIFIC-LINUX-USERS] customize Xsetup_0 , file is not executed

Don't have SL6 UI machines anymore but I think they use GDM. Look under /etc/gdm/, /etc/xdg/autostart/ and /usr/share/gdm/greeter/autostart. The firdt has scripts that run pre/post session and most closely replicate the xdm scripts.. The second can be used to run scripts or start apps when the

Re: [SCIENTIFIC-LINUX-USERS] [SL-Users] Re: any update on CERN Linux and CentOS-8 situation?

When the Centos 8 news came out, I tried out Centos Stream against our configuration. Kickstart and Puppet config needed very little change and I was able to bring up a VM in our lab config quite easily. I have two observations: 1) Updates are sparse, none for ages then a large batch of

Re: [SCIENTIFIC-LINUX-USERS] Rhel 8

> On 22 Jan 2021, at 16:30, Larry Linder > <0dea520dd180-dmarc-requ...@listserv.fnal.gov> wrote: > > So that leaves the Mac, Win 10, and maybe BSD which is under the hood of a > Mac. As a Mac user (managing Linux) I would say that you really don't want to be considering macOS if long term

Re: [SCIENTIFIC-LINUX-USERS] RedHat have broken Grub again

> On 16 Oct 2020, at 22:06, Jon Pruente wrote: > > That article is from July. It's been fixed. Is there another issue you are > having? Thank deity for that. :-) The other issue I was having is upgrading my RSS reader and having it show old articles as unread. Apologies for the wasted

RedHat have broken Grub again

Another security fix has broken booting on RHEL derived systems. See:

Re: [SCIENTIFIC-LINUX-USERS] new user

> On 26 Aug 2020, at 15:51, 1024f7089807-dmarc-requ...@listserv.fnal.gov > <1024f7089807-dmarc-requ...@listserv.fnal.gov> wrote: > > Can you recommend a few good books for me, an intermediate Linux user? I want > to learn Scientific Linux. Scientific Linux is derived from RedHat so

Re: [SCIENTIFIC-LINUX-USERS] new user

> On 26 Aug 2020, at 15:22, 1024f7089807-dmarc-requ...@listserv.fnal.gov > <1024f7089807-dmarc-requ...@listserv.fnal.gov> wrote: > > I just joined and have a question: is there a website where I can browse this > list archives? See:

Re: {Suspected Spam} [SCIENTIFIC-LINUX-ERRATA] Security ERRATA Moderate: grub2 on SL7.x x86_64

> On 31 Jul 2020, at 14:04, Farhan Ahmed wrote: > > Synopsis: Moderate: grub2 security and bug fix update > Advisory ID: SLSA-2020:3217-1 > Issue Date:2020-07-29 > CVE Numbers: None Ars Technica is reporting that the grub2 patch is breaking the boot process on

Re: [SCIENTIFIC-LINUX-USERS] Mate for CentOS 8

> On 21 May 2020, at 20:45, Larry Linder > <0dea520dd180-dmarc-requ...@listserv.fnal.gov> wrote: > > We are going to upgrade servers to 6.9 and a workstations to 7.6 and > hold our breath for the next 4 years. 6.10 and 7.8 are out. I suspect the 6.* is going to cause real problems from the

Re: [SCIENTIFIC-LINUX-USERS] Why /tmp is bound in /tmp ? How can I remove this bound

> On 29 Apr 2020, at 18:09, Francesco Alfano wrote: > > Now I don't have access to the pc and therefore I can't try, so I had to wait > until tomorrow. > To permanently remove the mount of / tmp on / tmp, is it sufficient to avoid > starting the "sandbox" init script? >From memory:

Re: [SCIENTIFIC-LINUX-USERS] Why /tmp is bound in /tmp ? How can I remove this bound

> On 29 Apr 2020, at 15:49, Francesco Alfano > <0bdf64e162f4-dmarc-requ...@listserv.fnal.gov> wrote: > > Why /tmp is bound on /tmp ? (also /home on /home, /var/tmp on /var/tmp) Interesting, one of the last SL6 VMs we have doesn't do this. The "sandbox" init script (/etc/init.d/sandbox) has

Re: [SCIENTIFIC-LINUX-USERS] Revisiting Cent 8

> On 17 Mar 2020, at 16:38, Larry Linder > <0dea520dd180-dmarc-requ...@listserv.fnal.gov> wrote: > > When > you run ifconfig -a you see the configuration and no eth0 or eth1 but > you find enp3s0: This has been the case since well before Centos 8 came out. The eth* devices were replaced by

Re: [SCIENTIFIC-LINUX-USERS] centOS 8

> On 7 Oct 2019, at 16:43, Fait, James F. > <0c6019404d64-dmarc-requ...@listserv.fnal.gov> wrote: > > I tend to ignore ANY distribution with a .0 suffix. I'm going through the process of updating our kickstart scripts, repos, and puppet config for Centos8. We (CS at St Andrews) have been

Re: [SCIENTIFIC-LINUX-USERS] Kickstart for uEFI boot

> On 15 Aug 2019, at 00:24, Orion Poplawski wrote: > > It sounds like you are not even at the point of running a "kickstart" > configuration, but rather still at the PXE boot step. We use syslinux. I have experimented with EFI kickstarts. Our dhcp config has: next-server ; option arch code

Re: [SCIENTIFIC-LINUX-USERS] Planning for hypothetical RHEL/CentOS cancellation

> On 7 Jan 2019, at 12:16, MAH Maccallum wrote: > > For example I cannot currently use Dropbox under SL > although I have manually re-partitioned and re-formatted > to use ext4 rather than xfs, since Dropbox insists on ext4. > The error message tells me I do not have glibc 2.19, and > advises I

Re: [SCIENTIFIC-LINUX-USERS] Samba security update for SL7 broke AD authentication

> On 6 Dec 2018, at 15:45, Gilbert E. Detillieux > wrote: > > What I'm now trying to set up is a working winbindd-based configuration to > essentially do what smbd used to do directly (communicating with the AD > server) before they took that functionality away, with as little fuss (and >

Re: [SCIENTIFIC-LINUX-USERS] Samba security update for SL7 broke AD authentication

> On 5 Dec 2018, at 17:07, Gilbert E. Detillieux > wrote: > > I looked up a few tutorials online, all of which focused on configuring NSS > and PAM (with dire warnings about how getting this wrong will break your > system authentication What are you trying to setup? A samba server that uses

Re: [SCIENTIFIC-LINUX-USERS] kickstart & kdump

> On 1 Nov 2018, at 16:41, Stephen Berg (Code 7309) > wrote: > > Is there an option to disable kdump from within a kickstart file during a > pxeboot install? I'd like to default to kdump being disabled but haven't > found the right option in kickstart to disable it automatically. To be

Re: [SCIENTIFIC-LINUX-USERS] systemd tftp xinetd

> On 11 Sep 2018, at 15:30, Ken Teh wrote: > > Manually, I can start the service and everything works. But enabling the > service stays disabled or indirect. Enabling the socket does not start the > service on reboot. Do I need xinetd or does systemd deprecate xinetd? I re-installed out TFTP

Re: [SCIENTIFIC-LINUX-USERS] SL signing keys

> On 12 Oct 2017, at 14:53, Ken Teh wrote: > > On the first update of a newly installed system, there is SL signing keys > that have to be installed. Yum prompts for confirmation. > > Is there a way to install the keys before the first yum update? Are they in > an rpm somewhere?

Re: [SCIENTIFIC-LINUX-USERS] davmail

> On 29 Sep 2017, at 02:34, Nico Kadel-Garcia wrote: > > Storing individual messages in individual files, sacrosanct and unedited, is > part of the basic IMAP specification. UW IMAP written by the author of the IMAP RFC stored multiple messages in the same file (one file per

Gnome

Forgive me for I have sinned. I replaced the Applications menu in Gnome on our prototype SL7 config with the Activities view. Makes it works the same as our Fedora clients. I feel bad. :-( The University of St Andrews is a charity registered in Scotland, No. SC013532.

Re: [SCIENTIFIC-LINUX-USERS] RAID 6 array and failing harddrives

> On 10 Apr 2017, at 18:23, David Sommerseth > wrote: > > But I'll give you that Oracle is probably a very different beast on the > legal side and doesn't have a too good "open source karma". ZFS on Linux is based on OpenZFS

Re: [SCIENTIFIC-LINUX-USERS] Integration with Apple iPad 2 air

Apologies for my previous reply, missed the part about Thunderbird like UI. Apple’s mail does not have this. The University of St Andrews is a charity registered in Scotland, No. SC013532.

Re: [SCIENTIFIC-LINUX-USERS] Integration with Apple iPad 2 air

> On 16 Jan 2017, at 03:30, Yasha Karant wrote: > > Are there any email apps, preferably licensed for free and not requiring an > additional service, that will connect to arbitrary MAP servers and provide > anything close to a Thunderbird email client end-user experience?

Re: [SCIENTIFIC-LINUX-USERS] GPT?

> On 15 Jun 2016, at 13:33, Tom H wrote: > > For a journaled filesystem, if you have access to a Mac, you can disable the > journal before using the disk on SL 7. Just to make things interesting Apple plans to move to a new filesystem, APFS. The University of St Andrews

Re: [SCIENTIFIC-LINUX-USERS] GPT?

> On 14 Jun 2016, at 21:14, David Sommerseth > wrote: > > That should be supported out-of-the box on most of the OSes you work with. I > generally have had no interoperability issues with vfat for many years. I format flash drives with MBR and ExFAT (Windows

Autoupdate

We have a lot of machines running SL6.4. We have auto-update enabled. I just noticed that a bunch of them have updated themselves to 6.5. Is this supposed to happen? On previous releases we had to manually choose to update between releases[1]. [1]: