Discuss October 2023

discuss@lists.centos.org

1 participants
2 discussions

Issues booting centos7 [dracut is failing to enable centos/root, centos/swap LVs]
by Yannis Milios 01 Feb '25

01 Feb '25

Hello, I'm having a strange problem booting a new centos7 installation. Below some background on this. [I have attached the tech details at the bottom of this message] I started a new CentOS7 installation on a VM, so far all good, o/s boots fine. Then I decided to increase VM disk size (initially was 10G) to 13G. Powered off the VM, increased the vhd via the hypervisor, booted from CentOS livecd, selected "recover my centos installation". Then I used the following sequence of commands to make the new vhd size "visible" to the o/s ... - ran fdisk /dev/sda and deleted partition 2. (This is the LVM partition where the o/s is stored. The first partition is /boot [xfs] partition *non lvm*.) - created a new partition with same starting sector as before deleting it, but a different ending sector (to reflect to the increased space). - set partition type to 8e (lvm), saved settings and exit. - ran pvresize and lvresize to make new space visible to the o/s.All good, I can see the space increase on 'lvdisplay centos/root'. - ran 'mount /dev/mapper/centos-root /mnt/root' to temporarily mount the o/s partition. - ran 'xfs_growfs /mnt/root' to resize the o/s fs to the new size. It was successful and I could actually chroot to the o/s and verify new disk size. - rebooted and tried to boot from hdd this time. Grub menu shows up and loads default kernel (3.10.0-862.9.1.el7.x86_64). - after initial kernel boot up process, booting continues to initrd and then it's where the problem starts... - looks like dracut has issues locating/enabling /dev/mapper/centos-root (lv) and as a result it cannot boot to the 'real' root fs (/). - while in dracut shell, I execute the following command sequence: 1. lvm lvchange -ay /dev/centos/root 2. lvm lvchange -ay /dev/centos/swap 3. ln -s /dev/mapper/centos-root /dev/root 4. exit ...and the o/s boots fine...so looks like the pv,vg,lv is detected properly while in initrd, but somehow dracut has difficulties enabling the root,swap LVs ? - While in o/s, I rebuild initrd by using: 'dracut -f -v -a lvm' Note, I have to use '-a lvm' as for some reason, if don't, the lvm utils (lvm,lvm_scan) are not being included to the initrd, not sure why this happens. After rebooting, same thing happens, I have to manually boot the system via dracut shell. I'm a bit stuck at this point, any clues what I'm doing wrong in here ? As I previously said, this is a new installation, so I could simply reinstall the whole thing, but I would rather try to find out some answer to why is this happening ... :-) [curiosity] Some additional details: ================== I've attached /run/initramfs/rdsosreport.txt file [generated while in inird] here: https://privatebin.net/?fdc4052c0c402884#gdB/QYR3IeR55SxUbjfrkZPQfJ7jMxiUxq… o/s ver=CentOS Linux release 7.5.1804 (Core) [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 13G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda2 8:2 0 12.5G 0 part ├─centos-root 253:0 0 11.5G 0 lvm / └─centos-swap 253:1 0 1G 0 lvm [SWAP] [root@localhost ~]# cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rd.shell rhgb" GRUB_DISABLE_RECOVERY="true"

4 11

Problem: cannot install the best update candidate for package pki-servlet-engine-1:9.0.30-3.module_el8.5.0+854+e1c92b81.noarch
by Jelle de Jong 01 Oct '23

01 Oct '23

Hello everybody, What might be going wrong here? Is there an upstream bug report? How to proceed? # yum update --refresh CentOS Stream 8 - AppStream 10 kB/s | 4.4 kB 00:00 CentOS Stream 8 - BaseOS 45 kB/s | 3.9 kB 00:00 CentOS Stream 8 - Extras 11 kB/s | 2.9 kB 00:00 CentOS Stream 8 - Extras common packages 57 kB/s | 3.0 kB 00:00 CentOS Stream 8 - PowerTools 19 kB/s | 4.4 kB 00:00 Extra Packages for Enterprise Linux 8 - x86_64 113 kB/s | 32 kB 00:00 Extra Packages for Enterprise Linux 8 - Next - x86_64 422 kB/s | 32 kB 00:00 Error: Problem: cannot install the best update candidate for package pki-servlet-engine-1:9.0.30-3.module_el8.5.0+854+e1c92b81.noarch - both package tomcat-el-3.0-api-1:9.0.62-12.el8.noarch from appstream and tomcat-lib-1:9.0.62-12.el8.noarch from appstream obsolete pki-servlet-engine - package tomcat-jsp-2.3-api-1:9.0.62-12.el8.noarch from appstream requires tomcat-servlet-4.0-api = 1:9.0.62-12.el8, but none of the providers can be installed - package tomcat-lib-1:9.0.62-12.el8.noarch from appstream requires tomcat-servlet-4.0-api = 1:9.0.62-12.el8, but none of the providers can be installed - package tomcat-servlet-4.0-api-1:9.0.62-12.el8.noarch from appstream is filtered out by modular filtering (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages) Kind regards, Jelle de Jong

2 4

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss October 2023