Bug 2056451
| Summary: | osbuild fails to build an ISO >= 4GB | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Christophe Besson <cbesson> | ||||
| Component: | osbuild-composer | Assignee: | Ondřej Budai <obudai> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Release Test Team <release-test-team-automation> | ||||
| Severity: | medium | Docs Contact: | Eliane Ramos Pereira <elpereir> | ||||
| Priority: | medium | ||||||
| Version: | 8.5 | CC: | atodorov, ckellner, elpereir, joseph.j.figaniak, jrusz, obudai, sbarcomb, scdbackup | ||||
| Target Milestone: | rc | Keywords: | Reproducer, WorkAround | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | osbuild-composer-46-1.el8 | Doc Type: | Bug Fix | ||||
| Doc Text: |
.`osbuild` no longer fails to build an ISO image bigger than 4GB
Image Builder users can create a customized image by adding additional packages. If the total size of the packages and their dependencies exceeded 4GB size, users of RHEL 8.5 and earlier releases would see the following error:
----
ubprocess.CalledProcessError: Command '['/usr/bin/xorrisofs', '-verbose', '-V', 'RHEL-8-5-0-BaseOS-x86_64', '-sysid', 'LINUX', '-isohybrid-mbr', '/usr/share/syslinux/isohdpfx.bin', '-b', 'isolinux/isolinux.bin', '-c', 'isolinux/boot.cat', '-boot-load-size', '4', '-boot-info-table', '-no-emul-boot', '-rock', '-joliet', '-eltorito-alt-boot', '-e', 'images/efiboot.img', '-no-emul-boot', '-isohybrid-gpt-basdat', '-o', '/run/osbuild/tree/installer.iso', '/run/osbuild/inputs/tree']' returned non-zero exit status 32.
----
The problem happened because the ISO 9660 Level Of Interchange `-isolevel 3` argument was not passed to the `xorrisofs` command. To work around the problem, users had to permanently alter the ISO level value to 3.
With the RHEL 8.6 release, the problem has been fixed, and users no longer need to permanently alter the ISO level value.
|
Story Points: | --- | ||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2022-05-10 13:49:32 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
|
Description
Christophe Besson
2022-02-21 09:43:13 UTC
Christian, does it make sense to set the isolevel to 3 in the image definition? I checked RHEL 8.5 boot and "DVD" isos and they seem to be level 3. $ iso-info rhel-8.5-x86_64-boot.iso iso-info version 2.1.0 x86_64-redhat-linux-gnu Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. __________________________________ ISO 9660 image: rhel-8.5-x86_64-boot.iso Application : GENISOIMAGE ISO 9660_HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE System : LINUX Volume : RHEL-8-5-0-BaseOS-x86_64 Joliet Level: 3 $ iso-info rhel-8.5-x86_64-boot.iso iso-info version 2.1.0 x86_64-redhat-linux-gnu Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. __________________________________ ISO 9660 image: rhel-8.5-x86_64-boot.iso Application : GENISOIMAGE ISO 9660_HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE System : LINUX Volume : RHEL-8-5-0-BaseOS-x86_64 Joliet Level: 3 Ondřej, for sure! I am surprised we are not doing so already! Created a PR upstream: https://github.com/osbuild/osbuild-composer/pull/2325 Upstream PR merged, this will land in the next osbuild-composer rebase. Hi, the file size problem was indeed caused by the fact that the ISO 9660 Level Of Interchange was not set to 3 (= multi-extent). But the information from iso-info (companion of libcdio) about other ISOs: Joliet Level: 3 does not tell that -iso-level >=3 was applied when those ISOs were made. The Joliet level is rather about character sets. libcdio gets this info from the Joliet superblock (SVD). joliet.pdf "Identifying an ISO 9660 SVD as Unicode (UCS-2)" talks of ISO 2022, which seems to define escape sequences for switching between UCS-2 planes (https://en.wikipedia.org/wiki/Universal_Coded_Character_Set). The ISO 9660 Level Of Interchange is not announced by any volume descriptor. It can only be detected by looking in the tree of directory records for more than one consequtive records with the same file name. Together they describe a multi-extent data file which is allowed only if level 3 is enabled at ISO production time. ISO level 3 is ok if the ISO shall be read by Linux or MS-Windows. Other systems might habe problems with multi-extent files. (But xorriso is able to extract them on any system where it can be built.) Have a nice day :) Thomas From https://gitlab.com/osbuild/ci/osbuild-composer/-/jobs/2174390852: Running test: regression-bigiso.sh Passed tests: regression-excluded-dependency.sh regression-include-excluded-packages.sh regression-composer-works-behind-satellite.sh regression-composer-works-behind-satellite-fallback.sh regression-bigiso.sh Moving to VERIFIED. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (osbuild-composer bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2022:1841 |