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34758 discussions

nvram/cmos settings backup/restore?
by Philip Vossler 07 Apr '10

07 Apr '10

Does anyone know of a means of backing up/restoring the settings in a systems non-volatile ram under CentOS? regards Phil Vossler westek TECHNOLOGY www.westekuk.com Telephone +44 (0)1225 790600 Fax +44 (0)1225 702968 Westek Technology Limited, Unit 1 Lancaster Park Industrial Estate, Bowerhill, Melksham, Wiltshire, SN12 6TT, UK.

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Resize iscsi partitions?
by Tom Diehl 07 Apr '10

07 Apr '10

Hi, I have a c5 machine with a 3ware controller in it that I am using for iscsi targets. The iscsi target is built on lvm. The client then sees it as /dev/sdb1. If I put a gpt partition on it and try to shrink it I loose the partition table. If I expand it gparted complains with the following warning: "Not all of the space available to /dev/sda appears to be used, you can fix the GPT to use all of the space (an extra 70688768 blocks) or continue with the current setting?" The data is still there but as the warning says I can fix the issue. I am wondering if there is a way to be able to both grow and shrink the gpt partitions on iscsi? The machine is not in production yet so at this time I am just experimenting so that when I have live data on it, I can be reasonably sure that I can resize the iscsi partitions without data loss. Regards, -- Tom Diehl tdiehl(a)rogueind.com Spamtrap address mtd123(a)rogueind.com

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socket: write vs send
by Michael D. Berger 07 Apr '10

07 Apr '10

On CentOS 5.4, Linux 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009 i686 i686 i386 GNU/Linux In man 2 send I find: The send() call may be used only when the socket is in a connected state (so that the intended recipient is known). The only difference between send() and write() is the presence of flags. With zero flags parameter, send() is equivalent to write(). In some complex server software, if the client disconnects: send: delivers errno == ECONNRESET but write: crashes the server process. So it is not really equivalent. Any thoughts on this? Thanks, Mike.

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(no subject)
by Elmozamil Elamir 07 Apr '10

07 Apr '10

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Backup KVM / Qemu on Virt-Manager
by Georghy 07 Apr '10

07 Apr '10

Hi guys, I have a CentOS system with virt-manager installed on it, the system is installed on a LVM partition with one PV for swap and one for "/", I only use KVM and qemu virtual machine on this server, I want to do a backup from my Virtual Machines on this server should I use LVM backup or an other stuff to do these backups ? what should I do ? stopping all VM before backup (I think) then do a LVM backup all help is appreciated -- Cordialement, / Greetings, Georghy FUSCO

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Strange 'find' misbehaviour
by Niki Kovacs 07 Apr '10

07 Apr '10

Hi, I just found out something strange. Try it out for yourselves. Here goes. Search for any directories under /boot: # find /boot/ -type d /boot/ /boot/grub /boot/lost+found So far so good. Now execute a detailed listing on the results: # find /boot/ -type d -exec ls -l \{} \; total 6203 -rw-r--r-- 1 root root 68663 sep 3 2009 config-2.6.18-164.el5 drwxr-xr-x 2 root root 1024 avr 6 10:40 grub -rw------- 1 root root 3228842 avr 6 10:30 initrd-2.6.18-164.el5.img drwx------ 2 root root 12288 avr 6 10:19 lost+found -rw-r--r-- 1 root root 80032 mar 12 2009 message -rw-r--r-- 1 root root 107405 sep 3 2009 symvers-2.6.18-164.el5.gz -rw-r--r-- 1 root root 954947 sep 3 2009 System.map-2.6.18-164.el5 -rw-r--r-- 1 root root 1855924 sep 3 2009 vmlinuz-2.6.18-164.el5 total 257 -rw-r--r-- 1 root root 63 avr 6 10:40 device.map -rw-r--r-- 1 root root 7584 avr 6 10:40 e2fs_stage1_5 -rw-r--r-- 1 root root 7456 avr 6 10:40 fat_stage1_5 -rw-r--r-- 1 root root 6720 avr 6 10:40 ffs_stage1_5 -rw------- 1 root root 655 avr 6 10:40 grub.conf -rw-r--r-- 1 root root 6720 avr 6 10:40 iso9660_stage1_5 -rw-r--r-- 1 root root 8192 avr 6 10:40 jfs_stage1_5 lrwxrwxrwx 1 root root 11 avr 6 10:40 menu.lst -> ./grub.conf -rw-r--r-- 1 root root 6880 avr 6 10:40 minix_stage1_5 -rw-r--r-- 1 root root 9248 avr 6 10:40 reiserfs_stage1_5 -rw-r--r-- 1 root root 55808 mar 12 2009 splash.xpm.gz -rw-r--r-- 1 root root 512 avr 6 10:40 stage1 -rw-r--r-- 1 root root 104988 avr 6 10:40 stage2 -rw-r--r-- 1 root root 7072 avr 6 10:40 ufs2_stage1_5 -rw-r--r-- 1 root root 6272 avr 6 10:40 vstafs_stage1_5 -rw-r--r-- 1 root root 8904 avr 6 10:40 xfs_stage1_5 total 0 Why does 'find' suddenly list everything... and not just the directories? I'm puzzled. Niki

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Kernel BUG
by Gilberto Nunes 07 Apr '10

07 Apr '10

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how to upgrade gtk on centos 4.8
by Tommy Zong 07 Apr '10

07 Apr '10

Hello, My centos is 4.8 while I need gtk 2.8 or later. How to upgrade GTK? I'm trying to upgrade manually based on RPMs on 5.X, there are too many decencies when upgrading libX. Is there anybody can give some suggestion to enlighten me? Thanks. - Tommy

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is there easy way to upgrade gtk on centos 4.8?
by Tommy Zong 07 Apr '10

07 Apr '10

Hello, I need to use wxPython-src-2.8.10.1 with GraphicContext support which requires gdk_cario_xxx APIs introduced from GTK 2.8. Is there any easy way to upgrade gtk since there are lots of dependences? I ever tried yum but it can not upgrade GTK. Thanks. - Tommy

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(OT) OpenOffice.org calc chart strangeness.
by Bill Campbell 07 Apr '10

07 Apr '10

I am attempting to create a simple line chart graphing three columns from a soffice-calc spreadsheet. I expect it to take the leftmost column as the X-Axis, plotting the others on the Y-Axis, but it always creates an X-Axis of the row number in the columns, and the first column amongst the data. I have tried this on OpenOffice.org 3.2.0, NeoOffice(R) 3.0.2 Patch 2, iWork Pages, and Excel 12.2.4 in Microsoft Office 2008 for Mac. It does what I expect in iWork Pages and M$-Excel, but not in the various incantations of OpenOffice.org. I OO-calc has gone to a fancy wizard thingy that doesn't seem to have any way to specify details for the X-Axis, and I can't find anything useful in the on-line documentation. Does anybody know how one gets this to work in OpenOffice.org? The Linux tie-in is that I'm getting data from a postgresql database that lives on a Linux box, and none of the fancy commercial products seem to be able to use it in their data sources. On the other hand, I have written a python script that extracts the data from the postgresql database and creates the pretty reports using groff and gplot totally on Linux which is faster in any case for my current problem. Bill -- INTERNET: bill(a)celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax: (206) 232-9186 Skype: jwccsllc (206) 855-5792 Blessed are the young, for they shall inherit the national debt. -- Herbert Hoover

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