Discuss July 2014

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211 participants
225 discussions

Mail Merge data to a pdf file by overlaying the data on the image
by Gregory P. Ennis 07 Jun '15

07 Jun '15

Everyone, I am looking for a utility that I can use to do a mail merge of data to a pdf image file. The image file does not have any active fields, but will be just an image file. I would like to overlay names addresses etc. We currently do this with a pcl file by just overlaying the data with pcl print positions. However, in order to get the pcl file from an original pdf file we have to use gimp to convert the pdf to pcl file, and we always lose a little resolution. I was wondering if anyone knows of a utility to perform this function without first converting the image to a pcl file. Thanks, -- Greg Ennis

4 10

heavy IO load when working with sparse files (centos 6.4)
by Ron E 31 Mar '15

31 Mar '15

Dear List, We have noticed a variety of reproducible conditions working with sparse files on multiple servers under load with CentOS 6.4. The short story is that processes that read / write sparse files with large "holes" can generate an IO storm. Oddly, this only happens with holes and not with the sections of the files that contain data. We have seen extremely high IO load for example copying a 40 or 80gb sparse file that only has a few gigs of data in it. Attempts to lower the io priority and cpu priority of these processes do not make any measurable difference. (ionice, nice) This has been observed with processes such as: cp rsync sha1sum The server does have to be under some load to reproduce the necessary conditions. The cases we have seen involve servers running 10-30 guests under kvm. Load is in acceptable norms when the processes are run, such as load avg 5-15 on a 24 core (12 core with HT enabled) server. We also verify before starting such a process that the spindle with the file we're working on is not being unduly hammered by another process. These servers have one hardware raid controller each (Dell H700 controller with write cache enabled) and multiple raid arrays (separate sets of physical spindles). Interestingly, the IO storm is not limited to the array / spindles where the sparse file resides but affects all IO on that server. We have looked extensively and not found any account of a similar issue. We have seen this on configurations that are 'plain vanilla' enough to think that this is not something specific to our environment. Wondering if anyone else has seen this and if any suggestions on gathering more data / troubleshooting. We wonder if we've found either a raid controller driver issue, an OS issue or some other such thing. What seems to point in this direction is that even with ionice -c3 which should prevent the process from using IO unless the storage is idle, an io storm which appears to saturate the entire raid bus on a given server can occur. Thanks in advance.

3 3

Centos 6.4 on Xserve, IPMI error
by Arno B 31 Mar '15

31 Mar '15

Hello! I'm trying to install Centos 6.4 64 bit on this Xserve: http://www.everymac.com/systems/apple/xserve/specs/xserve-intel-xeon-2.8-ei… I got a bootloader from: http://blog.christophersmart.com/2009/07/23/linux-on-an-apple-xserve-efi-on… as none of the official Centos releases (full, minimal, network 64 bit) boot on this machine. They all crash when loading the bootx64.conf. I have built a USB stick with a working bootx64.efi, grub.cfg, together with an initrd and a vmlinuz from the isolinux folder. These seem to get me into booting a kernel until something called IPMI is starting to throw errors at me: Console: switching to colour frame buffer device 128x48 fb0: VESA VGA frame buffer device ipmi message handler version 39.2 IPMI System Interface driver. ipmi_si 0000:09:00.4: enable device (0002 -> 0003) ipmi_si 0000:09:00.4: PCI INT C -> GSI 16 (level, low) -> IRQ 16 ipmi_si: Adding PCI-specified kcs state machine ipmi_si 0000:09:00.7: enable device (0000 -> 0003) ipmi_si 0000:09:00.7: PCI INT D -> GSI 17 (level, low) -> IRQ 17 ipmi_si: Adding PCI-specified bt state machine ipmi_si: Trying PCI-specified kcs state machine at mem address 0x90841000, slave address 0x0 irq 16 IRQ 16/ipmi_si: IRQF_DISABLED is not guaranteed on shared IRQs Using irq 16 ipmi: Found new BMC (man_id: 0x00003f, prod_id: 0x0003, dev_id: 0x20) IPMI kcs interface initialized ipmi_si: Trying PCI-specified kcs state machine at mem address 0x90840000, slave address 0x0 irq 17 Refined TSC clocksource calibration: 2792.999 MHz. Switching to clocksource tsc IPMI BT: timeout in XACTION [ B_BUSY ] 1 retries left IPMI BT: timeout in XACTION [ B_BUSY ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) then the screen goes to black and the machine doesn't respond to anything anymore... Can anyone please help me with this? Maybe just point me in a direction where to find a solution? I've been googling for a few days now without much results... thanks in advance Arno Beekman

2 1

chromium-33.0.1750.152-3.el6
by ngeorgop 24 Sep '14

24 Sep '14

*New version of chromium (33.0.1750.152)*Build by me :-)i686 chromium-33.0.1750.152-3.el6.i686.rpm <https://docs.google.com/file/d/0B9RlkKQB1POSWmFiT0REeG1QS28/> SRPM chromium-33.0.1750.152-3.el6.src.rpm <https://docs.google.com/file/d/0B9RlkKQB1POSQlZ1OUljT3p6U1U/> -- View this message in context: http://centos.1050465.n5.nabble.com/CentOS-chromium-33-0-1750-152-3-el6-tp5… Sent from the CentOS mailing list archive at Nabble.com.

5 6

mixing MX and CNAME
by aurfalien 27 Aug '14

27 Aug '14

Hi, Has any one had problems with mail clients were your DNS is like this; doman.com MX 50 mail.domain.com domain.com MX 100 mail2.domain.com domain.com CNAME www.domain.com -aurf

8 12

anaconda, kickstart, lvm over raid, logvol --grow, centos7 mystery
by Borislav Andric 14 Aug '14

14 Aug '14

I am testing some kickstarts on ESXi virtual machine with pair of 16GB disks. Partitioning is lvm over raid. If i am using "logvol --grow i get "ValueError: not enough free space in volume group" Only workaround i can find is to add --maxsize=XXX where XXX is at least 640MB less than available. (10 extents or 320Mb per created logical volume) Following snippet is failing with "DEBUG blivet: failed to set size: 640MB short" part raid.01 --size 512 --asprimary --ondrive=sda part raid.02 --size 1 --asprimary --ondrive=sda --grow part raid.11 --size 512 --asprimary --ondrive=sdb part raid.12 --size 1 --asprimary --ondrive=sdb --grow raid /boot --fstype="xfs" --device="md0" --level=RAID1 raid.01 raid.11 raid pv.01 --fstype="lvmpv" --device="md1" --level=RAID1 raid.02 raid.12 volgroup vg0 pv.01 logvol / --fstype="xfs" --grow --size=4096 --name=lvRoot --vgname=vg0 logvol swap --fstype="swap" --size=2048 --name=lvSwap --vgname=vg0 If i only add --maxsize=13164 everything is working. (but after install i have 640MB in 20 Free PE in vg0, for details see "after --maxsize install") logvol / --fstype="xfs" --grow --size=4096 --name=lvRoot --vgname=vg0 ------changed to -----> logvol / --fstype="xfs" --grow --size=4096 --name=lvRoot --vgname=vg0 --maxsize=13164 Some interesting DEBUG lines : > 15840MB lvmvg vg0 (26) > vg0 size is 15840MB > Adding vg0-lvRoot/4096MB to vg0 > vg vg0 has 11424MB free should it be 11744 or there is 320MB overhead ? > Adding vg0-lvSwap/2048MB to vg0 > vg vg0 has 9056MB free 320MB missing again, total of 640MB > vg vg0: 9056MB free ; lvs: ['lvRoot', 'lvSwap'] nice, i have 9056MB free in vg0 (640MB short but still ... ) > 1 requests and 303 (9696MB) left in chunk > adding 303 (9696MB) to 27 (vg0-lvRoot) wtf, who is counting what !! > failed to set size: 640MB short Could anyone shed some light ? P.S. "after --maxsize install" ========================= If i limit root logvol with --maxsize=13164, after installation i get 640MB of free space (20 Free PE). Missing 640Mb is free according to lvm : [root@c7-pxe-install ~]# pvdisplay --- Physical volume --- PV Name /dev/md1 VG Name vg0 PV Size 15.49 GiB / not usable 22.88 MiB Allocatable yes PE Size 32.00 MiB Total PE 495 >>>>>>>>>>Free PE 20<<<<<<<<<<<< Allocated PE 475 PV UUID uBLBqQ-Tpao-yPVj-1FVA-488x-Bs0K-ebQOmI And i can use it : [root@c7-pxe-install ~]# lvextend -L +640M vg0/lvRoot Extending logical volume lvRoot to 13.47 GiB Logical volume lvRoot successfully resized [root@c7-pxe-install ~]# xfs_growfs / meta-data=/dev/mapper/vg0-lvRoot isize=256 agcount=4, agsize=841728 blks = sectsz=512 attr=2, projid32bit=1 = crc=0 data = bsize=4096 blocks=3366912, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 3366912 to 3530752 [root@c7-pxe-install ~]# pvdisplay --- Physical volume --- PV Name /dev/md1 VG Name vg0 PV Size 15.49 GiB / not usable 22.88 MiB Allocatable yes (but full) PE Size 32.00 MiB Total PE 495 Free PE 0 Allocated PE 495 PV UUID uBLBqQ-Tpao-yPVj-1FVA-488x-Bs0K-ebQOmI [root@c7-pxe-install ~]#

2 3

RH developer toolset
by Jerry Geis 13 Aug '14

13 Aug '14

I saw an article this morning about the RH developer toolset. basically it includes a couple of packages like PHP python mysql (etc) that are later packages than that included in the released version like a 6.4 for example. So instead of php 5.3 with patches it would be php 5.4 and so on. That is great for a couple packages - but what about more up to date libraries like glib. 6.4 is way behind on glib. Like a couple years behind. Are there any plans in the "toolset" to update core libraries also? Thanks, Jerry

6 6

Dual boot with 2 drives
by Joseph Hesse 13 Aug '14

13 Aug '14

Hi, I have a laptop with 2 hard drives. The first has Fedora 20 (no windows or anything else) and the second is unused. I would like to install CentOS7 on the unused drive so I can dual boot with the choice of the 2 OS's on the Grub menu. I am comfortable in partitioning drives and installing Linux distributions. I am afraid I may mess up the MBR and/or set up Grub incorrectly so I lose everything. Please point me to some documentation to help me. Thank you, Joe

6 6

[OT] Leveno HDD caddies
by James B. Byrne 05 Aug '14

05 Aug '14

This is very off topic but, I have no idea where else to ask. We obtained some used Leveno CTO7483 desktop units for experimentation. I had intended to install CentOS-7 on one of them. As they arrived with a vendor upgraded Windows 7ProSP1 install without media I decided to pull the disk drive and install onto a spare drive that I installed. Those of you with any experience with this model computer or its family can tell where this is going. Basically, the disk drive module for these things is disposable. The HDD is enclosed in a removable caddy but is welded to it. You can only replace the HDD with a pre-mounted HDD in yet another caddy, which item is available only from Leveno. My question is: Does anyone here know of a source for an after-market caddy that fits these machines ad which allows one to install a standard low profile 3.5 inch SATA HDD? My google-fu has failed in my attempts, but that may becuse I have no idea how to phrase a search for this situation. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

10 14

How to install minimal KDE
by Gabor Boros 01 Aug '14

01 Aug '14

Hi, I want to install minimal KDE on minimal CentOS 7 installation. How can I do this? Gabor

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Discuss July 2014