Bug 207541
| Summary: | --useexisting can't find the existing RAID devices | ||||||
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| Product: | Red Hat Enterprise Linux 4 | Reporter: | Bastien Nocera <bnocera> | ||||
| Component: | anaconda | Assignee: | Chris Lumens <clumens> | ||||
| Status: | CLOSED ERRATA | QA Contact: | |||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 4.0 | CC: | atodorov, tao | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | RHBA-2007-0816 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2007-11-15 16:35:14 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 136866 [details]
raidsb-test.c
Check whether it's actually writing the magic and superblocks on the devices. mdadm --create (which anaconda uses) is supposed to write those superblocks. From Brent: " RHEL4 U4 also fails to set the superblock md data: [root@wudan ~]# cat /etc/redhat-release Red Hat Enterprise Linux AS release 4 (Nahant Update 4) [root@wudan ~]# mdadm -Q /dev/md0 /dev/md0: 101.88MiB raid1 2 devices, 0 spares. Use mdadm --detail for more detail. /dev/md0: No md super block found, not an md component. [root@wudan ~]# mdadm -Q /dev/md1 /dev/md1: 15.11GiB raid0 2 devices, 0 spares. Use mdadm --detail for more detail. /dev/md1: No md super block found, not an md component. [root@wudan ~]# mdadm -Q /dev/md2 /dev/md2: 1678.50MiB raid0 2 devices, 0 spares. Use mdadm --detail for more detail. /dev/md2: No md super block found, not an md component. " This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. There's no more time for working on this in 4.6, so we'll have to bump it to 4.7. I've committed a potential fix that should be in tomorrow's nightly tree. I'd like to get some testing done there before it goes into the next snapshot for customer testing. Test fails with the attached reproducer from comment #1 and mdadm says: [root@bohr ~]# mdadm -Q /dev/md0 /dev/md0: 33.28GiB raid1 4 devices, 0 spares. Use mdadm --detail for more detail. /dev/md0: No md super block found, not an md component. Using anaconda-ks.cfg seems to work. The relevant part of the file is: #clearpart --all part /boot/efi --fstype vfat --onpart sda1 part raid.2 --noformat --onpart sda2 part raid.5 --noformat --onpart sdb2 part raid.4 --noformat --onpart sdb1 part swap --onpart sdb3 part raid.3 --noformat --onpart sda3 raid / --device=md0 --useexisting Please give more details how to reproduce using kickstart file. My apologies, tested with an older version of anaconda that the one in errata. Will retest soon. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0816.html i'm Cann't install Redhat Enterprise linux 4 on my laptop, specification my computer : Presario V3000 Intel Core 2 Duo 1.88 Ghz Ram 1 Gb Hdd Samsung HM160HI I'm cann't find for driver instalation on sata driver. Please send me driver sata driver for my laptop on my email. Tahnk's Andre |
anaconda-10.1.1.46-1 1. Setup a machine using RAID 2. Get the anaconda kickstart file, replace the raid lines with --useexisting. For example, replace: raid /boot --fstype ext3 --device=md0 --level=RAID1 raid.01 raid.11 with: raid /boot --device=md0 --useexisting 3. anaconda won't find the RAID devices, and print the error: * couldn't get chunksize of md0: bad md magic on device The attached test case (a stand-alone version of what anaconda's isys does, both in RHEL4 and HEAD) shows the same problem: $ ./raidsb-test /dev/md0 not md magic And in python: import sys >>> sys.path.append("/usr/lib/anaconda") >>> import isys >>> (major, minor, raidSet, level, nrDisks, totalDisks, mdMinor) = isys.raidsb("md0") Traceback (most recent call last): File "<stdin>", line 1, in ? File "/usr/lib/anaconda/isys.py", line 97, in raidsb return raidsbFromDevice("/tmp/md") File "/usr/lib/anaconda/isys.py", line 103, in raidsbFromDevice rc = _isys.getraidsb(fd) ValueError: bad md magic on device mdadm works though, but doesn't find a superblock either: mdadm -Q /dev/md0 /dev/md0: 101.88MiB raid1 2 devices, 0 spares. Use mdadm --detail for more detail. /dev/md0: No md super block found, not an md component. It looks like anaconda never sets the magic on those devices.