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Bug
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Resolution: Done-Errata
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Critical
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None
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False
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False
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2023-R4
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Testable
Similarly as in HMS-3128 but with different root cause, I've hit an issue when pre-conversion analysis reported inhibitors, but left the system in broken state without properly informing the user.
Steps to reproduce
- Install minimal packageset of CentOS-7.9 on x86_64 system
- Update package using yum update
- Install yum-plugin-local package:
yum install yum-plugin-local - Reboot system
- Follow steps from https://access.redhat.com/documentation/en-us/red_hat_insights/2023/html/converting_from_an_rpm-based_linux_distribution_to_rhel_using_red_hat_insights/proc_preparing-for-a-rhel-conversion-using-insights_converting-from-a-linux-distribution-to-rhel-in-insights
- Run "Pre-conversion analysis for converting to RHEL" task
The system becomes unusable as key packages such as centos-release are removed from the system and user is in situation as described in HMS-3128.
# rpm -q centos-release package centos-release is not installed
Key part from the logfile:
Backing up centos-release-7-9.2009.1.el7.centos.x86_64. [2023-11-24T08:14:29+0000] DEBUG - Using repository files stored in /var/lib/convert2rhel/backup. [2023-11-24T08:14:29+0000] DEBUG - Downloading the centos-release-7-9.2009.1.el7.centos.x86_64 package. [2023-11-24T08:14:29+0000] DEBUG - Calling command 'yumdownloader -v --destdir=/var/lib/convert2rhel/backup --setopt=reposdir=/var/lib/convert2rhel/backup centos-release-7-9.2009.1.el7.centos.x86_64' WARNING - Couldn't find the name of the downloaded rpm in the output of yumdownloader. Command: ['yumdownloader', '-v', '--destdir=/var/lib/convert2rhel/backup', '--setopt=reposdir=/var/lib/convert2rhel/backup', u'centos-release-7-9.2009.1.el7.centos.x86_64'] Output: Loading "fastestmirror" plugin Loading "local" plugin Loading "product-id" plugin Loading "subscription-manager" plugin Updating Subscription Management repositories. Config time: 0.617 Loading mirror speeds from cached hostfile * base: centos.po.opole.pl * extras: ftp.sh.cvut.cz * updates: ftp.sh.cvut.cz repo time: 0.045 Setting up Package Sacks pkgsack time: 0.008 rpmdb time: 0.000 centos-release-7-9.2009.1.el7.centos.x86_64.rpm | 27 kB 00:00:00 == Rebuilding _local repo. with 1 new packages == Spawning worker 0 with 1 pkgs Spawning worker 1 with 0 pkgs Spawning worker 2 with 0 pkgs Spawning worker 3 with 0 pkgs Workers Finished Saving Primary metadata Saving file lists metadata Saving other metadata Generating sqlite DBs Sqlite DBs complete == Done rebuild of _local repo. ==Removing package: centos-release-7-9.2009.1.el7.centos.x86_64 Removing package: centos-release-7-9.2009.1.el7.centos.x86_64 [2023-11-24T08:14:31+0000] DEBUG - Calling command 'rpm -e --nodeps centos-release-7-9.2009.1.el7.centos.x86_64' [2023-11-24T08:14:31+0000] DEBUG - Successfully removed 1 packages The following packages were removed: centos-release-7-9.2009.1.el7.centos.x86_64
This is caused by the parsing of the yumdownloader output implemented here: https://github.com/oamg/convert2rhel/blob/45cc02671931fcf279dd63eda02e8b310a07cc25/convert2rhel/utils.py#L778 and more specifically due to https://github.com/oamg/convert2rhel/blob/45cc02671931fcf279dd63eda02e8b310a07cc25/convert2rhel/utils.py#L773 which causes that only the last line of the yumdownloader output is considered which in case of local plugin and yumdownloader being called with -v causes that there's additional ouput. (Thanks to ddiblik@redhat.com for help with debugging and finding the problematic code.)
When checking the /var/lib/convert2rhel/backup the downloaded RPMs are available there:
# ls /var/lib/convert2rhel/backup centos-logos-70.0.6-3.el7.centos.noarch.rpm centos-release-7-9.2009.1.el7.centos.x86_64.rpm os-release system-release yum
Note: this issue was discovered when we were attempting to perform conversion with largest possible packageset installed, this issues is a minimal reproducer of a issue that was discovered during the attempt of converting a system with as many packages installed as possible.
- links to
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RHEA-2023:124609
convert2rhel bug fix and enhancement update
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RHEA-2023:124610
convert2rhel bug fix and enhancement update
