Re: [CentOS-docs] Install On Partitionable RAID1
Some later thoughts go below. On 01/21/2010 01:50 AM, Phil Schaffner wrote: 1. The user should be instructed to start rescue mode with networking in order to be able to retrieve the patch for mkinitrd. The mkinitrd instructions should be moved to the beginning of the guide. Networking sometimes requires very complicated configurations which could be quite hard to load from the rescue mode (imagine using ndiswrapper for example). May be we could provide a patched package which will replace mkinitrd, perhaps in centos-plus repo? 3. Some additional discussion on how to handle multiple partitions should be added. There is an implicit assumption that only / is used. Ideally we should also provide a guide for the LVM case. I had an email discussion with William Schwartz, who was making partitionable RAID1 with LVM setup and managed to do that. The changes are: 1. Additional steps were required to start LVM manually after starting raid with mdadm: vgscan vgchange -ay VolGroup00 # I think name could be omitted - Lev. 2. grub boot options are certainly unchanged in LVM case. 3. pvscan and Co. will detect false volumes or complain, so something like this needs to be added to /etc/lvm/lvm.conf: filter = [a/md*, r/.*/] William wrote that he did not do this last step and things work fine for him. -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] new wiki article: How to repair a software RAID5 volume with more than one failed disk
Hi, So, would you place a link? On Tue, Sep 22, 2009 at 1:36 PM, Ralph Angenendt ralph.angene...@gmail.com wrote: On Fri, Sep 18, 2009 at 8:22 PM, Lev Shamardin shamar...@gmail.com wrote: Hi, Would anybody comment on this article? Or if everything is fine, may be it is a good idea to link this page from http://wiki.centos.org/TipsAndTricks ? If nobody has anything to say about the content - yeah, why not. I saw one or two things which could be rephrased a bit, but ... Regards, Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] new wiki article: How to repair a software RAID5 volume with more than one failed disk
Hi, Would anybody comment on this article? Or if everything is fine, may be it is a good idea to link this page from http://wiki.centos.org/TipsAndTricks ? -- Lev. On Thu, Aug 20, 2009 at 12:30 PM, Lev Shamardin shamar...@gmail.com wrote: Hi all, I've finally got some time to finish the second article I've promised to write some time ago; please read it, any comments are welcome: http://wiki.centos.org/TipsAndTricks/Repair_RAID5_Volumes -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] new wiki article: How to repair a software RAID5 volume with more than one failed disk
Hi all, I've finally got some time to finish the second article I've promised to write some time ago; please read it, any comments are welcome: http://wiki.centos.org/TipsAndTricks/Repair_RAID5_Volumes -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] I'd like to contribute two wiki articles
Hi, On 05/05/2009 08:39 PM, JohnS wrote: http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 --- If you need to update the mkinitrd package some time later and the bug with partitionable raid detection will not be fixed yet, you will need to reapply the patch to mkinitrd and recreate the initrd after update. Any idea on when this bug will be fixed? No idea. Maybe add a yum exclude = mkinitrd for now to the article so someone does not get bitten by it? It's already there, check step 11. -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] I'd like to contribute two wiki articles
Hi, I've added some explanation about the partitionable raids, may be it is not as clear as it should be, and I've also explained why it is necessary to leave some free space unpartitioned at the end of the drive. Patch link also now points to one attached to the page. More comments? -- Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] I'd like to contribute two wiki articles
Hi, I've written two small howtos, and would like to contribute them to the CentOS Wiki. The first one is How to install CentOS 5 on software partitionable mdadm RAID1, and the second one How to repair a software mdadm RAID5 with two or more failed disks (if you know that information is still on the disks and readable). I think that the first one should be somewhere like wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 with a reference from wiki.centos.org/HowTos and the second one should be wiki.centos.org/TipsAndTricks/Reparing_RAID5_With_Many_Failures with a reference from wiki.centos.org/TipsAndTricks My account name on the wiki.centos.org is LevShamardin, and the untranslated russian versions of these articles are available in my blog at http://abbot2.blogspot.com/2009/04/centos-53-partitionable-raid1.html and http://abbot2.blogspot.com/2009/04/mdadm-raid5.html With best regards, Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] I'd like to contribute two wiki articles
On 04/29/2009 10:49 PM, JohnS wrote: What's that chance of reading them in English? I was planning to translate these only if they land in the CentOS wiki or some other more or less public information source. You may try the Google translation service meanwhile, it gives a somewhat readable translation. With best regards, Lev. ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
