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Old HP Xeon server blade with only SCSI HDD ports & CentOS
by Fernando Cassia 15 Apr '14

15 Apr '14

Hi there. I got myself a pair of old Intel Xeon blades, which I plan to repurpose with CentOS. The model is : HP bl20p-g3 server blade Manual http://h18004.www1.hp.com/products/quickspecs/12322_ca/12322_ca.pdf Now, the main problem with this hardware is that LVD UW SCSI HDDs are hard to find and hella expensive if you find em (and of reduced capacity). Any of you know: 1. If there's any third party maker of any daughtercard offering SATA ports? The main board of the system has daughtercard sockets allowing for instance SFP ports http://en.wikipedia.org/wiki/Small_form-factor_pluggable_transceiver Seems to me that there'd be a small but interesting niche for this kind of adapter. 2. If it's possible to use BootP for booting off a network drive? I know there are some UWSCSI to SATA adapter daughtercards but those sell for $250 which is way over my budget. So, if you had one of these blades but not any UWSCSI HDDs what would you do? Thanks in advance for any pointer. This hardware is too good to back to the dumpster where I got mines from... FC -- During times of Universal Deceit, telling the truth becomes a revolutionary act Durante épocas de Engaño Universal, decir la verdad se convierte en un Acto Revolucionario - George Orwell

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Botched kernel update
by lhecking＠users.sourceforge.net 15 Apr '14

15 Apr '14

I have a 6.5 box that failed to boot after a kernel update. The reason is the first arg on the kernel line: title CentOS (2.6.32-431.11.2.el6.x86_64) root (hd0,0) kernel /tboot.gz ro root=/dev/mapper/vol0-lvol1 intel_iommu=on rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_NO_DM KEYBOARDTYPE=pc KEYTABLE=us rd_LVM_LV=vol0/lv ol3 rd_LVM_LV=vol0/lvol1 rhgb quiet logging=vga,serial,memory module /vmlinuz-2.6.32-431.11.2.el6.x86_64 root=/dev/mapper/vol0-lvol1 crashkernel=auto SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us module /initramfs-2.6.32-431.11.2.el6.x86_64.img There is no such file /tboot.gz. This machine doesn't have tboot installed. I removed the kernel and reinstalled it, yet the grub entry was recreated as above. Digging deeper, I found this in /etc/sysconfig/kernel: # HYPERVISOR specifies the default multiboot kernel HYPERVISOR=/boot/tboot.gz HYPERVISOR_ARGS=logging=vga,serial,memory Removing these lines results in a working grub.conf when the kernel is reinstalled. The question is now: what placed these entries there? It's not tboot, I checked the srpm.

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HeartBleed in RHEL
by Fred Smith 14 Apr '14

14 Apr '14

I know I'm slightly OT here, asking about RHEL, but since Centos is now a part of RH, I'm hoping I won't be summarily ejected. I've seen several articles that listed Centos 6.x as vulnerable, but DID NOT LIST RHEL 6. I'd think that if Centos 6.x is vulnerable, then so would RHEL 6.x, since Centos is made from RHEL sources. Does anyone know for sure either way? thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The Lord detests the way of the wicked but he loves those who pursue righteousness. ----------------------------- Proverbs 15:9 (niv) -----------------------------

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Flash Player Update?
by Chris 14 Apr '14

14 Apr '14

Hi, I'm currently using Flash Player 11,2,202,346. The most recent version is 11.2.202.350. The package is from rpmforge. When will be there an update? - Chris

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS
by eoconnor25＠gmail.com 14 Apr '14

14 Apr '14

Why would it uhh ave been tossed in the first place?.....I'm assuming SOMETHING was amiss.....and forced the trashing of this equip. ----- Reply message ----- From: "Fernando Cassia" <fcassia(a)gmail.com> To: "CentOS mailing list" <centos(a)centos.org> Subject: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS Date: Fri, Apr 11, 2014 10:42 am On Fri, Apr 11, 2014 at 11:38 AM, <m.roth(a)5-cent.us> wrote: > Another thought: *carefully* examine the m/b. Techie friends have talked > at length about capacitors burning out. > It's in mint condition.... not even too much dust on the blade fans... The caps are all OK as well... That's why I picked up in the first place. Would hate to see it sold as metal junk and torn to pieces with a large sledgehammer. FC _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS
by eoconnor25＠gmail.com 12 Apr '14

12 Apr '14

Hmmmm.....guess everyone's definition of fun is different?.....LoL! EGO II ----- Reply message ----- From: m.roth(a)5-cent.us To: "CentOS mailing list" <centos(a)centos.org> Subject: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS Date: Fri, Apr 11, 2014 1:14 pm Fernando Cassia wrote: > On Fri, Apr 11, 2014 at 11:51 AM, Rainer Duffner > <rainer(a)ultra-secure.de>wrote: > >> If you have no budget, blades are the worst to work with ;-) > > I'm beginning to realize that. ;-). > But think about it, if I can get it to work (even with no HDD and over the > network booting) that'd be a fun weekend project. Weekend project, um, yeah, after you buy all the extra parts, like that cable set.... Around '08, I bought an HO scale model steam locomotive kit, maybe 35 years old, "partly assembled". Then I spent at least half again as much buying the missing parts. Then I started work.... I did finish it, eventually, and it looks *marvelous*. I've also said that I had *way* more "fun" (for certain values of "fun") than I'd planned on. I also say "I've done that, I don't *EVER* have to do it again". mark, remembering too many times carefully shaking the rug, and finding the marker "jewels" (too small for a tweezers) in the dust.... _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Re: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS
by eoconnor25＠gmail.com 12 Apr '14

12 Apr '14

Oh.....well that explains it! LoL! A newly minted admin who doesn't see the "potential" of some H/W because he wasn't trained on it.....so he thinks its too old to serve a real purpose in the modern world.....LoL! ----- Reply message ----- From: "Fernando Cassia" <fcassia(a)gmail.com> To: "CentOS mailing list" <centos(a)centos.org> Subject: [CentOS] Old HP Xeon server blade with only SCSI HDD ports & CentOS Date: Fri, Apr 11, 2014 10:47 am On Fri, Apr 11, 2014 at 11:38 AM, <m.roth(a)5-cent.us> wrote: > It could have been tossed because it was old... but I'd wonder if it was > tossed because either the m/b or the CPU failed. > the guy who was throwing it into a dumpster bin when I walked by clearly knew something about servers, but didn't have much idea about what he was throwing out. He sounded like a fresh sysadmin. He told me "I have another like this that we might throw out, we can't get disks for them, and we're buying a new server anyway so..." FC _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Death of dyndns
by Timothy Murphy 12 Apr '14

12 Apr '14

I'm running two servers, one with a fixed IP address and the other with a dynamic address. This is probably a very ignorant question, but what does dyndns do that I could not do myself? -- Timothy Murphy e-mail: gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin 2, Ireland

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btrfs in centos 6
by Greg Lindahl 12 Apr '14

12 Apr '14

I played with btrfs in centos 6.3 and it seemed to mostly work. Now I'm building some new systems with 6.5, where I'd like to have some data disks using btrfs - not the system disk. I can create and fiddle with btrfs filesystems just fine, but attempting to mount them produces an oops. Surfing the Internets has not enlightened me. I installed btrfs-progs, and can modprobe btrfs, no problem. This warning appears: [root@h-248-254 ~]# btrfsck /dev/sdb failed to open /dev/btrfs-control skipping device registration Which I see I can fix with [root@h-248-254 ~]# mknod /dev/btrfs-control c 10 234 [root@h-248-254 ~]# btrfsck /dev/sdb checking extents ... which makes me think that I'm missing some udev rules? And then for the mount oops I only have a photo, but the call chain is ... bad_area __do_page_fault call_rcu_sched call_rcu do_page_fault page_fault selinux_set_mnt_opts superblock_doinit deactiviate_locked_super selinux_sb_kern_mount security_sb_kern_mount vfs_kern_mount do_kern_mount I'm not 100% sure this hardware is OK ... but I can do lots of stuff with the btrfs progs and never see any problems. Can anyone who has this working give me a clue? Thanks. -- greg

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biosdevname
by Steve Clark 11 Apr '14

11 Apr '14

Hello, Anybody else run into problems with biosdevname .0.5..0-2 changing names from p2p1 to em1 when upgrading from biosdevname 0.4.1-3? Darn! I thought biosdevname was to keep the names the same!! -- Stephen Clark *NetWolves Managed Services, LLC.* Director of Technology Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark(a)netwolves.com http://www.netwolves.com

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