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Unresolved dependencies when upgrade on centOS 8
by Ebed 11 Jan '20

11 Jan '20

Hi, Guys i got unresolved dependencies when trying to upgrade centOS 8, what should i do to fix this? [root@ws1 ebedsat]# dnf upgrade Last metadata expiration check: 0:14:27 ago on Sat 11 Jan 2020 12:16:02 PM WIB. Error: Problem 1: cannot install the best update candidate for package kmod-iwlegacy-0.0-1.el8.elrepo.x86_64 - nothing provides kernel >= 4.18.0-147.el8 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(__pci_register_driver) = 0xe85eaefe needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_unregister_driver) = 0x4883cfc3 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_set_master) = 0xe724f530 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(kmalloc_caches) = 0x8200293d needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_disable_device) = 0x24796ca2 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_enable_device) = 0x982a3dc2 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_release_regions) = 0xbf4a2a75 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_request_regions) = 0x9c656956 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_write_config_byte) = 0x21935607 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_read_config_word) = 0x3dc485cf needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_disable_msi) = 0xc174fcd7 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_enable_msi) = 0xda24a9c7 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_write_config_word) = 0x4b15b75c needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_disable_link_state) = 0x02f2f3f8 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(generic_file_llseek) = 0xc27ffb37 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(debugfs_create_dir) = 0x2f4ce417 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(debugfs_create_file) = 0x501d615e needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_alloc_hw_nm) = 0xba0c6cb1 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_beacon_get_tim) = 0x3e9fc88e needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_free_hw) = 0x1a211787 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_register_hw) = 0x94f9cf8d needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_rx_napi) = 0xe42fba8f needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_stop_queue) = 0x14b3a816 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_stop_queues) = 0x5d5f40f9 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_unregister_hw) = 0x740a5bb2 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_wake_queue) = 0xfa79b997 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_wake_queues) = 0xa900f2df needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(led_classdev_unregister) = 0x9fd8b0e4 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(of_led_classdev_register) = 0xe2dcc6bc needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(wiphy_rfkill_set_hw_state) = 0x1df077cc needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(debugfs_remove) = 0x9ef3e60b needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(debugfs_remove_recursive) = 0x4668b613 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(default_llseek) = 0x384172fd needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pcie_capability_read_word) = 0xa785480e needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(__ieee80211_create_tpt_led_trigger) = 0x0d0ddd5f needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(__ieee80211_get_radio_led_name) = 0xd1d478f1 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_chswitch_done) = 0xced3a36a needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_find_sta) = 0xc579589b needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_rate_control_register) = 0xabcd1b6e needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_rate_control_unregister) = 0x22eec09c needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_restart_hw) = 0x779336b9 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_scan_completed) = 0x70edbf96 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_sta_block_awake) = 0xf9257828 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_start_tx_ba_cb_irqsafe) = 0xbd303a44 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_start_tx_ba_session) = 0xa96bdcd7 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_stop_tx_ba_cb_irqsafe) = 0x963e9d4a needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_stop_tx_ba_session) = 0xf0bb0c05 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(ieee80211_tx_status_irqsafe) = 0xdb983f1b needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(pci_ioremap_bar) = 0x5a71258b needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 - nothing provides kernel(rate_control_send_low) = 0x3f7dc196 needed by kmod-iwlegacy-0.0-2.el8_1.elrepo.x86_64 Problem 2: cannot install the best update candidate for package qt-creator-4.9.2-3.el8.x86_64 - nothing provides libLLVM-8.so()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libLLVM-8.so(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangBasic.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangFormat.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangLex.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangRewrite.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingCore.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingInclusions.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 Problem 3: package qt-creator-doc-4.9.2-4.el8.noarch requires qt-creator = 4.9.2-4.el8, but none of the providers can be installed - cannot install the best update candidate for package qt-creator-doc-4.9.2-3.el8.noarch - nothing provides libLLVM-8.so()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libLLVM-8.so(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangBasic.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangFormat.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangLex.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangRewrite.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingCore.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingInclusions.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 Problem 4: package qt-creator-data-4.9.2-4.el8.noarch requires qt-creator = 4.9.2-4.el8, but none of the providers can be installed - cannot install the best update candidate for package qt-creator-data-4.9.2-3.el8.noarch - nothing provides libLLVM-8.so()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libLLVM-8.so(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangBasic.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangFormat.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangLex.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangRewrite.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingCore.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingInclusions.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 Problem 5: package qt-creator-translations-4.9.2-4.el8.noarch requires qt-creator-data = 4.9.2-4.el8, but none of the providers can be installed - package qt-creator-data-4.9.2-4.el8.noarch requires qt-creator = 4.9.2-4.el8, but none of the providers can be installed - cannot install the best update candidate for package qt-creator-translations-4.9.2-3.el8.noarch - nothing provides libLLVM-8.so()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libLLVM-8.so(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclang.so.8(LLVM_8)(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangBasic.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangFormat.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangLex.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangRewrite.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingCore.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 - nothing provides libclangToolingInclusions.so.8()(64bit) needed by qt-creator-4.9.2-4.el8.x86_64 (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages) [root@ws1 ebedsat]# uname -mrs Linux 5.4.10-1.el8.elrepo.x86_64 x86_64

2 2

Building and packaging httpd
by Benson Muite 10 Jan '20

10 Jan '20

Hi, Am rebuilding httpd from scratch to enable http2 and minimize extra modules on Cent Os 8. Am having trouble understanding the spec file [0] and systemd initialization [1][2][3] (these are very similar to those extracted from [4]). Why are 3 scripts needed to start the service and why is a pid setting not needed as used in the httpd.service file at [5]? Benson [0] https://src.fedoraproject.org/rpms/httpd/blob/HEAD/f/httpd.spec [1] https://src.fedoraproject.org/rpms/httpd/tree/f31 [2] https://src.fedoraproject.org/rpms/httpd/blob/f31/f/httpd.service [3] https://src.fedoraproject.org/rpms/httpd/blob/f31/f/httpd-init.service [4] http://vault.centos.org/8.0.1905/AppStream/Source/SPackages/httpd-2.4.37-12… [5] https://blacksaildivision.com/how-to-install-apache-httpd-on-centos

2 2

copying files to fill flash drives
by Frank Cox 10 Jan '20

10 Jan '20

Back in the days of DOS I had a program that I obtained from somewhere called FILL. FILL would take the name of a directory and then start writing files from that directory onto a series of floppy disks in such a way that each disk was made as full as possible, but without modifying the files that it was writing. So you might end up with disk 1 having files A B and D on them since D fitted but C was too big so it went onto Disk 2 along with files E and F. Before I re-invent the wheel here, does someone already have a way to do this with Linux so you can write a series of flash drives and fill them with the contents of a specified directory without modifying the files that get written? The reason that I specify without modifying the files is that I could do this easily with tar and split, but then I end up with a tar file and can't just look on disk 1 and copy file A off of it later on. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com

6 5

Using shared printers in CentOS 8
by Robert Nichols 09 Jan '20

09 Jan '20

How do I let a CentOS 8 client make use of the shared printers advertised by CUPS on the network? In CentOS 6, this was just a matter in a checkbox "Show printers shared by other systems" on the CUPS Admin page. Is this function still available somehow? Manually adding all the shared printers on every client would be painful. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

3 5

Centos 6 iwl3945
by Ken Smith 09 Jan '20

09 Jan '20

Hi everyone, I'm having a problem with an iwl3945 wireless adaptor in my laptop running Centos 6. Recently it has been failing to connect to a either 2.4G or 5G Wi-Fi coming from a Draytek Wireless Router. It has usually managed to connect in the past although it has sometimes been a little temperamental. I'm not sure what has changed that has stopped it working. I've tried Kernels 2.6.32-754.24.34 down to 2.6.32-754.15.3 in Centos 6 without it working. This machine also has an old Fedora Core 14 boot with Kernel 2.6.35.14-97 that connects to Wi-Fi just fine. Also the laptop dual boots Win 7 and that also connects to Wi-Fi without issue. How would I go about diagnosing this in the Centos 6 boot? Thanks Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

1 0

gcc 8/9 on CentOS 7
by sthustfo 09 Jan '20

09 Jan '20

I am looking to make use of gcc 8/9 on CentOS 7, which is currently with gcc 4.8.5. How do I go about doing this? SCL repository provides the same as part of devtoolset8, but devtoolset8 libstdc++-devel i686 package is missing, without which I can not build 32 bit applications. Are there any repository sources from where I can get this? Otherwise, I am open to building the packages from sources. Please let me know how can one go about this. Any suggestions and pointers appreciated.

2 4

CentOS 7 yum update
by Jerry Geis 08 Jan '20

08 Jan '20

I was in the middle of a yum update on physical box over teh weekend and power died. Ssytem came pack up. But now when I run yum-complete-transaction I get all kinds of errors (these are just the last 4, there are many) systemtap-runtime-4.0-10.el7_7.x86_64 has installed conflicts systemtap-devel < ('0', '4.0', '10.el7_7'): systemtap-devel-4.0-9.el7.x86_64 systemtap-runtime-4.0-10.el7_7.x86_64 has installed conflicts systemtap-client < ('0', '4.0', '10.el7_7'): systemtap-client-4.0-9.el7.x86_64 systemtap-runtime-4.0-10.el7_7.x86_64 is a duplicate with systemtap-runtime-4.0-9.el7.x86_64 util-linux-2.23.2-61.el7_7.1.x86_64 is a duplicate with util-linux-2.23.2-61.el7.x86_64 what to do ? Thanks, Jerry

3 2

can't boot after volume rename
by Paul Amaral 07 Jan '20

07 Jan '20

I renamed my volume with vgrename however I didn't complete the other steps. Mainly update fstab and intiramfs. Once I booted, I was dropped on the Dracut shell. From here I can see the newly rename VG and I can lvm lvscan as well as activate it, lvm vgchange -ay. However I can't figure out what to do next, I'm assuming I need to regenerate the initramfs and then boot to change grub? Could someone point me in the right direction to recovering a FS from Dracut, or other means, once the volume group name was changed. TIA, Paul

3 4

Network Diagnostics
by Chris Olson 07 Jan '20

07 Jan '20

In our smallest office, we have a Dell CentOS 7 system, a Windows system and an HP 8610 printer, all hard-wire Ethernet connected with a Linksys router. The router provides Internet connection. All of the network-connected systems get their IP address from the router at power up. Successful network connection of the printer at power up has recently started taking much longer than usual. The display on the front of the printer indicates that it is initially attempting wireless connection even though this feature is turned off. Ethernet connection is eventually achieved and the printer functions normally on the network but just for a few minutes. After about five minutes, the printer drops its Ethernet connection and appears to be attempting wireless connection once again. During this period, network connectivity is disrupted for the other systems on the network. They are not able to communicate with each other or access the Internet through the router. Turning off the printer restores network connection for the other systems. One of our personnel at another office suggested using Wireshark to check out the network when the printer is having difficulty. Wireshark was apparently not on this system so we installed it using yum install. The tail end of the apparently successful installation process is shown below. Unfortunately, we cannot seem to find Wireshark on the system. Is it possible that Wireshark was not actually installed or do we just not know how to locate and use it? Is this printer networking issue a known problem and is Wireshark the right tool to diagnose the problem? Thanks. Installed: wireshark.x86_64 0:1.10.14-16.el7 Dependency Installed: libsmi.x86_64 0:0.4.8-13.el7 Complete! [user@computer ~]$ [user@computer ~]$ which wireshark /usr/bin/which: no wireshark in (/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/user/.local/bin:/home/user/bin) [user@computer ~]$ Recent successful installations: -------------------------------- [user@computer ~]$ [user@computer ~]$ which mplayer /usr/bin/mplayer [user@computer ~]$ which ffmpeg /usr/bin/ffmpeg [user@computer ~]$

3 2

USB drive very slow on CentOS 8
by Michael Eager 05 Jan '20

05 Jan '20

I recently upgraded from CentOS 7 to CentOS 8. I have a Mediasonic HF2-SU3S2 external drive enclosure with 4x3Tb drives configured as a software RAID 5 array (mdadm) with LVM. It's connected to a USB 3.0 port. On CentOS 7, the drive performance is reasonable. On CentOS 8, performance is extremely slow, about USB 1.0 performance. Maybe worse. Connecting an external USB SSD to the CentOS 8 system appears to perform well. I've updated the ASUS Prime-B350-Plus motherboard with the latest BIOS, but it doesn't appear to make any difference. Does anyone have any idea what might be different between CentOS 7 and 8 that would cause this? -- Michael Eager eager(a)eagerm.com 1960 Park Blvd., Palo Alto, CA 94306

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