Discuss February 2019

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97 participants
79 discussions

how to use 2 Nvidia Cards in one system
by Ralf Prengel 27 Feb '19

27 Feb '19

Hallo, is there a way to use 2 different Nvidia Graphiccards in one system? The first one is working fine with 3 displays but I want to use 2 more displays with the second card. Do I need two card of the same series (4 or 7) or is there a way to mix different series? Thanks for hints. Ralf [root@pcprengellx ~]# lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07) 00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31) 00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31) 00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31) 00:16.3 Serial controller: Intel Corporation 100 Series/C230 Series Chipset Family KT Redirection (rev 31) 00:17.0 SATA controller: Intel Corporation Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] (rev 31) 00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #5 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Q170 Chipset LPC/eSPI Controller (rev 31) 00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31) 00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31) 00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM (rev 31) 01:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 745] (rev a2) 01:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1) 02:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 405] (rev a2) 02:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)

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Problem with mdadm, raid1 and automatically adds any disk to raid
by Jobst Schmalenbach 27 Feb '19

27 Feb '19

Hi. CENTOS 7.6.1810, fresh install - use this as a base to create/upgrade new/old machines. I was trying to setup two disks as a RAID1 array, using these lines mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 /dev/sdc1 mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sdb2 /dev/sdc2 mdadm --create --verbose /dev/md2 --level=0 --raid-devices=2 /dev/sdb3 /dev/sdc3 then I did a lsblk and realized that I used --level=0 instead of --level=1 (spelling mistake) The SIZE was reported double as I created a striped set by mistake, yet I wanted the mirrored. Here starts my problem, I cannot get rid of the /dev/mdX no matter what I do (try to do). I tried to delete the MDX, I removed the disks by failing them, then removing each array md0, md1 and md2. I also did dd if=/dev/zero of=/dev/sdX bs=512 seek=$(($(blockdev --getsz /dev/sdX)-1024)) count=1024 dd if=/dev/zero of=/dev/sdX bs=512 count=1024 mdadm --zero-superblock /dev/sdX Then I wiped each partition of the drives using fdisk. Now every time I start fdisk to setup a new set of partitions I see in /var/log/messages as soon as I hit "W" in fdisk: Feb 25 15:38:32 webber systemd: Started Timer to wait for more drives before activating degraded array md2.. Feb 25 15:38:32 webber systemd: Started Timer to wait for more drives before activating degraded array md1.. Feb 25 15:38:32 webber systemd: Started Timer to wait for more drives before activating degraded array md0.. Feb 25 15:38:32 webber kernel: md/raid1:md0: active with 1 out of 2 mirrors Feb 25 15:38:32 webber kernel: md0: detected capacity change from 0 to 5363466240 Feb 25 15:39:02 webber systemd: Created slice system-mdadm\x2dlast\x2dresort.slice. Feb 25 15:39:02 webber systemd: Starting Activate md array md1 even though degraded... Feb 25 15:39:02 webber systemd: Starting Activate md array md2 even though degraded... Feb 25 15:39:02 webber kernel: md/raid1:md1: active with 0 out of 2 mirrors Feb 25 15:39:02 webber kernel: md1: failed to create bitmap (-5) Feb 25 15:39:02 webber mdadm: mdadm: failed to start array /dev/md/1: Input/output error Feb 25 15:39:02 webber systemd: mdadm-last-resort(a)md1.service: main process exited, code=exited, status=1/FAILURE I check /proc/mdstat and sure enough, there it is trying to assemble an Array I DID NOT TOLD IT TO DO. I do NOT WANT this to happen, it creates the same "SHIT" (the incorrect array) over and over again (systemd frustration). So I tried to delete them again, wiped them again, killed processes, wiped disks. No matter what I do as soon as I hit the "w" in fdisk systemd tries to assemble the array again without letting me to decide what to do. Help! Jobst -- windoze 98: <n.> useless extension to a minor patch release for 32-bit extensions and a graphical shell for a 16-bit patch to an 8-bit operating system originally coded for a 4-bit microprocessor, written by a 2-bit company that can't stand for 1 bit of competition! | |0| | Jobst Schmalenbach, General Manager | | |0| Barrett & Sales Essentials |0|0|0| +61 3 9533 0000, POBox 277, Caulfield South, 3162, Australia

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hplips
by mark 26 Feb '19

26 Feb '19

Yeah, about that... Back in '12, we got a nice HP poster printer. They don't support Linux, but a co-worker got the .ppd out of the Mac support file. I tried it, then I looked at the file in vi... and found it *only* supported the 24" printer, *not* the 44" printer that we had. Well, we just bought a replacement, since the old printer was EOL'd. This time, I went to hplips, d/l and built the current one, and sure enough, there's a .ppd for the DesignJet Z9. Any bets on what I found? No? There was *NO* support for the 44" printer. I saw *one* setting for something 30x42 (the 100' roll of paper is 42" wide). I joined and tried asking about that on the hplips site. That was last week. Not a single response. HP no longer does software support for their printers (I got that from the engineer - we do have contract support). Had a friend d/l and install the Mac ps driver... no .ppd. Anyone know someone who's involved with hplips? Otherwise, I'm going to have to spend half a day or a day hacking the damn .ppd. Btw, the server it's attached to is C6. One of these days I'll upgrade it to C7, but the *only* think it's used for now are these poster printers. mark

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Policy issue: C7 and motion
by mark 25 Feb '19

25 Feb '19

Not sure who's package let an error slip in, but I don't believe I've had this issue before: SELinux is preventing /usr/bin/motion from map access on the chr_file /dev/video1 Yes, that should be allowed by default. mark

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Geany 1.34
by H 25 Feb '19

25 Feb '19

Does anyone know if Geany 1.34 is headed to one of the repositories? I am running version 1.31 and interested in the 1.33+ since the markdown plugin has apparently been updated.

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Nvme m.2 disk problem
by Alessandro Baggi 24 Feb '19

24 Feb '19

Hi list, I'm running Centos 7.6 on an Corsair Force MP500 120 GB. Root fs is ext4 and this drive is ~1 year old. System works very well except on boot. During boot process I got always a file system check on nvme drive. Running smartctl on this drive I got this: === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Health Information (NVMe Log 0x02, NSID 0x1) Critical Warning: 0x00 Temperature: 41 Celsius Available Spare: 100% Available Spare Threshold: 1% Percentage Used: 1% Data Units Read: 5,355,595 [2,74 TB] Data Units Written: 5,826,517 [2,98 TB] Host Read Commands: 67,978,550 Host Write Commands: 75,422,898 Controller Busy Time: 32,863 Power Cycles: 811 Power On Hours: 2,813 Unsafe Shutdowns: 317 Media and Data Integrity Errors: 0 Error Information Log Entries: 177 Warning Comp. Temperature Time: 0 Critical Comp. Temperature Time: 0 Temperature Sensor 2: 77 Celsius Error Information (NVMe Log 0x01, max 64 entries) Num ErrCount SQId CmdId Status PELoc LBA NSID VS 0 177 0 0x0014 0x4004 - 8796109799680 1 - 1 176 0 0x0019 0x4004 - 8796109799680 1 - 2 175 0 0x001a 0x4004 - 8796109799680 1 - 3 174 0 0x0005 0x4004 - 8796109799680 1 - 4 173 0 0x000c 0x4004 - 8796109799680 1 - 5 172 0 0x0019 0x4004 - 8796109799680 1 - 6 171 0 0x001d 0x4004 - 8796109799680 1 - 7 170 0 0x0014 0x4004 - 8796109799680 1 - 8 169 0 0x0011 0x4004 - 8796109799680 1 - 9 168 0 0x000f 0x4004 - 8796109799680 1 - 10 167 0 0x0000 0x4004 - 8796109799680 1 - 11 166 0 0x0006 0x4004 - 8796109799680 1 - 12 165 0 0x0008 0x4004 - 8796109799680 1 - 13 164 0 0x000e 0x4004 - 8796109799680 1 - 14 163 0 0x0008 0x4004 - 8796109799680 1 - 15 162 0 0x0006 0x4004 - 8796109799680 1 - ... (48 entries not shown) I noticed that Unsafe shutdowns increased rapidly and I don't know why there is an unsafe shutdown. Every 3/4 boot this value is increased by 1 and I don't know why. I can't find any errors on system logs. Can someone point me in the right direction? Thanks in advance. Alessandro.

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time to say good-bye to win 7 / printer is the last blocker
by Ralf Prengel 24 Feb '19

24 Feb '19

Hallo, the laptop of my wife is the last Win7 system in my network. My question: I need a well supported printer (MFC) with network interface, if possible with colour printing. Ralf

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Python 2.7.5 and GnuPG sig verify
by Michael Peters 23 Feb '19

23 Feb '19

I asked on stack overflow but I'm trying to boost the signal. I don't normally program in python but I can usually figure out how to do it when I need to, but I'm just stumped, there clearly is something I'm not understanding. It's a CentOS 7.6 box and python install I'm trying this on. Thanks for any suggestions, I can't figure out why it isn't working. https://stackoverflow.com/questions/54841911/python-gnupg-verify-file -- *Notice*: Gmail is owned by Google, a company that made its fortune in content indexing and user tracking. It is logical therefore to assume that Google and quite possibly the government has access to any correspondence made with this account. Do not use correspondence with this account for sensitive information.

1 0

thunderbird issues
by mark 22 Feb '19

22 Feb '19

Just updated t-bird, and once again, it wants to open a completely new browser, other than using the running one. I started searching, and found something about editing the config, and for the first one of the two they said to change, I find this: network.protocol-handler.app.https;/usr/lib64/thunderbird-3.1/open-browser.sh %s a) there's only /usr/lib64/thunderbird, and I'm on 60.something. Is this in my config as a user? is this something that should go away? Please don't tell me I have to create a whole new t-bird configuration.... mark

2 2

iptables 2 firewalld
by mark 22 Feb '19

22 Feb '19

Y'all may remember me fighting this a few weeks back. I did finally succeed, and thought that my awk script might be helpful to others. Yes, it's really simple, it uses the build-in FORWARD chain. The line where I skip the definition of those chains is because it *is* built in. To use it, I did an iptables-save on the firewall that's currently in use, changed the physdev devices to match the ones on the new box (I *loathe* that idiot varying name convention, it is *not* helpful, and then ran it through this script. I piped the o/p into a file, then sh scriptname did the actual install. Following that, I did firewall-cmd --reload, and all was wonderful, and I could ping the system inside the firewall, and from the subnet in our building (the new one's in the datacenter), but not from anywhere else, so the rules worked. Note that I did the work, I work for a US gov't federal contractor, so this was done on tax dollars, and should be free of any encumberment. Hope it helps, folks. BEGIN { priority = 1; } { if ( $0 ~ /^-A/ ) { if ( $2 ~ /^INPUT|^FORWARD/ ) { next; } else { rule = substr( $0, index($0, $3)); } print "firewall-cmd --permanent --direct --add-rule ipv4 filter FORWARD " priority++ " " rule; } } mark

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Discuss February 2019