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CentOS 8 LSI SAS2004 Driver
by William Markuske 20 Sep '20

20 Sep '20

Hello, I've recently been given domain over a number of supermicro storage servers using Broadcom / LSI SAS2004 PCI-Express Fusion-MPT SAS-2 [Spitfire] (rev 03) to run a bunch of SSDs. I was attempting to do fresh installs of CentOS 8 and have come to find out that RedHat deprecated support for a number of HBAs for 8 including all running the SAS2004 chip. Does anyone know if there is a driver available for this chip from a third party repo? My google searches have led me to believe that EPEL 8 has a kmod-mpt3sas package but it does not seem to exist though multiple blogs have stated otherwise. If anyone knows if there is a solution for CentOS 8 that would be great or if I have to roll back to CentOS 7 for card support. Thanks, William

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Drive failed in 4-drive md RAID 10
by Kenneth Porter 20 Sep '20

20 Sep '20

I got the email that a drive in my 4-drive RAID10 setup failed. What are my options? Drives are WD1000FYPS (Western Digital 1 TB 3.5" SATA). mdadm.conf: # mdadm.conf written out by anaconda MAILADDR root AUTO +imsm +1.x -all ARRAY /dev/md/root level=raid10 num-devices=4 UUID=942f512e:2db8dc6c:71667abc:daf408c3 /proc/mdstat: Personalities : [raid10] md127 : active raid10 sdf1[2](F) sdg1[3] sde1[1] sdd1[0] 1949480960 blocks super 1.2 512K chunks 2 near-copies [4/3] [UU_U] bitmap: 15/15 pages [60KB], 65536KB chunk smartctl reports this for sdf: 197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 1 198 Offline_Uncorrectable 0x0010 200 200 000 Old_age Offline - 6 So it's got 6 bad blocks, 1 pending for remapping. Can I clear the error and rebuild? (It's not clear what commands would do that.) Or should I buy a replacement drive? I'm considering a WDS100T1R0A (2.5" 1TB red drive), which Amazon has for $135, plus the 3.5" adapter. The system serves primarily as a home mail server (it fetchmails from an outside VPS serving as my domain's MX) and archival file server.

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storage for mailserver
by Michael Schumacher 19 Sep '20

19 Sep '20

hi, I am planning to replace my old CentOS 6 mail server soon. Most details are quite obvious and do not need to be changed, but the old system was running on spinning discs and this is certainly not the best option for todays mail servers. With spinning discs, HW-RAID6 was the way to go to increase reliability and speed. Today, I get the feeling, that traditional RAID is not the best option for SSDs. I am reading that all RAID members in SSD-arrays age synchronously so that the risk of a massive failure of more than one disk is more likely than with HDDs. There are many other concerns like excessive write load compared to non-raid systems, etc. Is there any common sense what disk layout should be used these days? I have been looking for some kind of master-slave system, where the (one or many) SSD is taking all writes and reads, but the slave HDD runs in parallel as a backup system like in a RAID1 system. Is there any such system? Any thoughts? best regards Michael Schumacher

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Re: [CentOS] Drive failed in 4-drive md RAID 10
by Jon Pruente 18 Sep '20

18 Sep '20

On Fri, Sep 18, 2020 at 3:20 PM Kenneth Porter <shiva(a)sewingwitch.com> wrote: > Thanks. That reminds me: If I need to replace it, is there some easy way > to > figure out which drive bay is sdf? It's an old Supermicro rack chassis > with > 6 drive bays. Perhaps a way to blink the drive light? > It's easy enough with dd. Be sure it's the drive you want to find then put dd if=/dev/sdf of=/dev/null into a shell, but don't run it. Look at the drives and hit enter and watch for which one lights up. Then ^c while watching to be sure the light turns off exactly when you hit it.

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Re: [CentOS] Drive failed in 4-drive md RAID 10
by Michael Schumacher 18 Sep '20

18 Sep '20

Hi, > Thanks. That reminds me: If I need to replace it, is there some easy way to > figure out which drive bay is sdf? # smartctl -all /dev/sdf will give you the serial number if the drive. That will be printed on the disk label. But you still have to shut down your machine and pull all drives to find it. best regards --- Michael Schumacher

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Newer versoin of tar 1.26 on Centos 7
by Klaus Kolle 16 Sep '20

16 Sep '20

Is it possible to find a repository that hold a newer version of tar. The current version is 1.26 I have some students trying to build Yocto project on my Centos 7 host, but OpenEmbedded reports incompatibility problems with the current version of tar. I thank you on beforehand for any help. |< -- Med venlig hilsen Klaus Kolle Teknikumingeniør, B.Sc.EE., e-mail : klaus(a)kolle.dk Master of IT www : www.kolle.dk Asger Jorns Vej 17 Telephone : +4522216044 DK-8600 Silkeborg, Denmark "Man skal ikke tilskrive til sammensværgelser hvad der tilstrækkeligt kan forklares af inkompetence" Poul Henning Kamp Planlægning er tanker om noget man agter at gøre en gang i fremtiden, hvis omstændighederne tillader det. Klaus Kolle 2006 Perfection is achieved not when nothing more to add, but when there is nothing more left to take away. Antoine de Saint-Exupery

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how to restore deleted directory/files
by qw 16 Sep '20

16 Sep '20

Hi, I remove one directory by running rm -fr ./some-dir. How to restore the directory and its files in the directory? Thanks! Regards Andrew

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Problems with x2go
by Stefano Simonucci 16 Sep '20

16 Sep '20

I have installed x2goserver on a Centos8 server. Yesterday, after the installation I was able to connect by means of x2go. Today I get the following error ( /var/log/messages) /usr/bin/x2gostartagent[2677]: no free display number available, cannot start new session. Has anyone had the same problem? Thanks. Bye Stefano

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CentOS-announce Digest, Vol 187, Issue 2
by centos-announce-request＠centos.org 15 Sep '20

15 Sep '20

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2020:3643 Important CentOS 6 thunderbird Security Update (Johnny Hughes) 2. CESA-2020:3631 Important CentOS 7 thunderbird Security Update (Johnny Hughes) 3. CESA-2020:3617 Important CentOS 7 dovecot Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 14 Sep 2020 14:38:01 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2020:3643 Important CentOS 6 thunderbird Security Update Message-ID: <20200914143801.GA21973(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2020:3643 Important Upstream details at : https://access.redhat.com/errata/RHSA-2020:3643 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 558cb4cec9d65b7140f56dc518d58ae6ceafc230ccdda0bd2b5b937d61115ce2 thunderbird-68.12.0-1.el6.centos.i686.rpm x86_64: 5ed3d21f20ebd7146936e4bfd6b106b2b76d0414e2e7a3040ab2f10a355c5bc8 thunderbird-68.12.0-1.el6.centos.x86_64.rpm Source: c1cd84a7a4d24026aea19059ea99c3f5129175b17de8e12f0836301f24220f10 thunderbird-68.12.0-1.el6.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Mon, 14 Sep 2020 14:38:51 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2020:3631 Important CentOS 7 thunderbird Security Update Message-ID: <20200914143851.GA22114(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2020:3631 Important Upstream details at : https://access.redhat.com/errata/RHSA-2020:3631 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: eee32b147df145f7043c9e9f6bff219b5b7baee07773c613dda73a937fecb1ec thunderbird-68.12.0-1.el7.centos.x86_64.rpm Source: 47a72b65f6b7fd85d69531a9fa992423075b3d355f2557dad453df8e506b9b1d thunderbird-68.12.0-1.el7.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 3 Date: Mon, 14 Sep 2020 14:40:04 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2020:3617 Important CentOS 7 dovecot Security Update Message-ID: <20200914144004.GA22310(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2020:3617 Important Upstream details at : https://access.redhat.com/errata/RHSA-2020:3617 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 6ce4ad3c854d89718c469df1d4f7aeac6a8434556118275bb4b324847dcc6b1f dovecot-2.2.36-6.el7_8.1.i686.rpm e391cbeba08b1519396239fcb00b50bb663881d27aa8031ba222df613dce2159 dovecot-2.2.36-6.el7_8.1.x86_64.rpm 43b14f32642d28cb2b456d2c10d7d41b98a6a61b92d5253d53947fa632c0865e dovecot-devel-2.2.36-6.el7_8.1.x86_64.rpm a86f968d5072fb2464dd3095f2b48710970d6b1f5d3c83d008ed4a0bfcb9e54e dovecot-mysql-2.2.36-6.el7_8.1.x86_64.rpm ace8e5be7f1920a9fdea7a76700ad4a8c228f900df17c1d6faa46853d978e9cf dovecot-pgsql-2.2.36-6.el7_8.1.x86_64.rpm 72d08ad4f4c6d877481367326333c5adac6be70cf4cef41f54cb4d48736681ce dovecot-pigeonhole-2.2.36-6.el7_8.1.x86_64.rpm Source: bf4ea5803ec61ca57f4908afec4a403fc6ad7482010cc2a73596600201d49e6f dovecot-2.2.36-6.el7_8.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 187, Issue 2 ***********************************************

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Re: [CentOS] erasing a disk
by david 14 Sep '20

14 Sep '20

At 01:34 PM 9/14/2020, you wrote: >what if you just dd the first 1GB of the disk and the last GB of the disk >(the last because of RAID signatures of some controllers that write to the >end of the disk) >Look at this article and modify accordingly >https://zedt.eu/tech/linux/using-dd-to-repeatedly-erase-a-specific-range-of… > >Also, use wipefs -a (Gordon Messmer answered faster than me) > >On Mon, Sep 14, 2020 at 3:18 PM david <david(a)daku.org> wrote: > > > Folks > > > > I've encountered situations where I want to reuse a hard-drive. I do > > not want to preserve anything on the drive, and I'm not concerned > > about 'securely erasing' old content. I just want to be able to > > define it as an Physical Volume (in a logical volume set), or make it > > a ZFS disk, or sometimes make it a simple EXT3, ExFAT or NTFS > > disk. However, old 'signatures' get in the way and Linux sometimes > > refuses to let me proceed. I know that a fool-proof solution is to > > use the "dd if=/dev/zero bs=32768 oflag=direct" on the disk, but when > > we're talking USB-connected hard drives of 8 TB, that's an operation > > that can take days. > > > > The disk in question might even have been corrupted. This would make > > using 'zpool destroy' to clear out a ZFS disk, or > > > > I've tried erasing the first megabyte of the disk, but there are ZFS > > or LVM structures that get in the way. So, does anyone have an > > efficient way to erase structures from a disk such that it can be reused? > > > > Something like > > -erase first N blocks (block defined as 4096) > > - Erase <number> blocks starting at block <number> > > - erase last <number> blocks > > > > At least such an algorithm would be quicker than erasing 8 TB of data. > > > > David > > > > _______________________________________________ > > CentOS mailing list > > CentOS(a)centos.org > > https://lists.centos.org/mailman/listinfo/centos > > Thanks for the suggestion. "wipefs" looks like the right answer. David

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