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centos 4.2 (32bit) app installed on (64 bit) box mising library
by Jerry Geis 26 Jan '06

26 Jan '06

On Thu, 26 Jan 2006 at 10:20am, Jerry Geis wrote >/ I have a centos 4.2 32bit app that when installed on centos 4.2 64 bit />/ box and try to run it I get "libxml2.so.2 not found". />/ />/ however if I "rpm -qa | grep libxml2" it shows up just fine. / >That's the x86_64 version of libxml2. You'll need the i386 version >installed for the 32bit app to run. >-- >Joshua Baker-LePain >Department of Biomedical Engineering >Duke University Joshua - thanks what is the correct way to do that? jerry

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centos 4.2 (32bit) app installed on (64 bit) box mising library
by Jerry Geis 26 Jan '06

26 Jan '06

I have a centos 4.2 32bit app that when installed on centos 4.2 64 bit box and try to run it I get "libxml2.so.2 not found". however if I "rpm -qa | grep libxml2" it shows up just fine. How can I get this app to run on the 64bit box (without recompiling yet). The recompiling will come someday... right now I just would like it to run. Thanks Jerry

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freenx in rootless mode and session resume anyone?
by Sophana Kok 26 Jan '06

26 Jan '06

Hi I suceeded to run freenx on centos3 with the nomachine client, but I still have some issues. First I can only get a new whole desktop (kde) session. I cannot resume it, and it always leave tons of process that I have to kill from root. I don't need the whole kde desktop, and only want to have single windows. This is called the rootless mode I think and cannot make it work, it simply hangs. Finally I succeded in running the nxagent and nxproxy manually in rootless mode, but the problem is that I have to do this on my linux router (I use x.org from cygwin). but there is no nxproxy on windows or cygwin I think. Is there a way to run single windows with the freenx client and resume sessions? Thanks.

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Virtualization
by Bards1888 26 Jan '06

26 Jan '06

Hello all, I looking at setting up some virtual servers on my centos 4.2 x86_64, mainly just to play with the technology. I tried the latest openvz kernel (kernel-022stab061.1-released) on my centos 4.2 x86_64. It booted no problems and in the main did not seem to slow the machine down (which is nice), all my drivers worked, Raid1 is built into the kernel as opposed to a module for example. There were a few issues namely 1) that kernel does not seem to have nfs support compiled in 2) it cannot loopback mount ISO's and 3) there are no vzyum rpms for x86_64 which basically means you cant build your own templates, if I read it correctly. Anyways, I'll get to the point now... does anyone have openvz 64 bit or 32 bit running on centos, or does anyone have xen 3.0 running on centos ? I'm keen to hear peoples experiences and tips if they have any. Cheers. Bards.

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RE: [CentOS] Ext3 filesystem access after downgrade from v4.2 to v3.6 [SOLVED]
by Plant, Dean 26 Jan '06

26 Jan '06

Peter Kjellström wrote: > On Monday 23 January 2006 16:46, Plant, Dean wrote: >> I need to downgrade a system from Centos x4.2 to v3.6 (x86) due to >> performance problems with Arkeia Network Backup and AIT-4 tape >> drives. The backup database is stored on a v4.2 created ext3 >> partition. When accessing this partition after the downgrade, Centos >> complains on boot that >> >> fsck.ext3: Filesystem has unsupported feature(s) (/dev/sda5) >> *fsck: Get a newer version of e2fsck! [fail] > > you can list the features with the command "tune2fs -l /dev/sda5" and > toggle features too (read the man page). It's most likely the > dir_index feature... > Thanks Peter for the prod in the right direction. A v4 filesystem shows these features # tune2fs -l /dev/sda1 | grep features Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file A v3 filesystem has these features # tune2fs -l /dev/sda5 | grep features Filesystem features: has_journal filetype needs_recovery sparse_super Tunes2fs from v4.2 can be used to remove "has_journal filetype dir_index sparse_super" Booted into rescue mode with a v4.2 cd and removed dir_index but the v3.6 OS still complained. After finding this link https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=145307 which references problems with ghost and v4 ext3 partitions I used debugfs to remove some of the other 4.2 specific features. # debugfs -w /dev/sda5 -R "features ^resize_inode ^ext_attr" # fsck -y /dev/sda5 The v3.6 OS now boots correctly. Dean. >> >> If I comment the partition out of /etc/fstab the machine boots as >> normal and I can manually mount the filesystem. >> >> My questions are: >> >> If I use the v4.2 ext3 filesystem on v3.6 I am likely to corrupt the >> data? > > I don't think you're running any risk of corrupting your data. > > /Peter > >> And what is the best way fix this problem? Do as it says and try >> and upgrade e2fsck or is there a better fix? >> >> Thanks >> >> Dean.

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prompt to overwrite when re-saving file in MS-Excel to samba server
by Matt Morgan 26 Jan '06

26 Jan '06

I have a couple users, in a new install of a samba file server on CentOS 4.2, who are being prompted to overwrite the existing file when in MS-Excel and simply saving the active spreadsheet. Normally, File--Save (or just clicking on the disk icon) for an already saved file will re-save the file without prompting to overwrite. I have my doubts about whether this could be a server-side issue, and suspect it's probably Excel, except 1) it started when I switched them from a Windows file server to the Samba server; 2) it happened to both of them at the same time; 3) I've been working with Excel for a long time and never seen a setting for this. Anybody have any idea what this could be, or how to diagnose it? Googling gets me a few VBScript questions, nothing useful. FYI, the samba share is pretty basic, but I did increase the create mask and directory mask settings, since these files are shared between several users and they need to write each other's files. Apart from that, no deviations from the norm. Thanks, Matt

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Build Raid 1 in a installed system
by Cleber P. de Souza 25 Jan '06

25 Jan '06

Hi. I have a Centos 4.2 installed but the Raid 1 configuration wasn't set during the installation process. How could I build the Raid 1 after the system has been installed? Thanks. -- Cleber P. de Souza

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Screwed up my iptables firewall
by James Pifer 25 Jan '06

25 Jan '06

I have a server that I screwed up iptables on. Now when the server restarts it locks up trying to apply the firewall rules. How can I remove the rules (set to all ACCEPT) in a linux rescue mode or knoppix or other way of getting to the file system? Any suggestions how to fix this? Thanks, James

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Dispatch code
by Sam Drinkard 25 Jan '06

25 Jan '06

Found this in the named portion of my system log this morning. Any clue to what the dispatch code is? dispatch 0x9c21670: shutting down due to TCP receive error: connection reset: 1 Time(s) Still up and running. Perhaps an attack attempt? -- Snowman

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freenx
by Craig White 25 Jan '06

25 Jan '06

installed freenx server on CentOS 4 server installed nxclient from nomachine.com on workstation so far so good. following directions from web site... http://fedoranews.org/contributors/rick_stout/freenx/ where I tried both /etc/nxserver/client/client.id_dsa.key and /var/lib/nxserver/home/.ssh/client.id_dsa.key copied them to my workstation and then used the 'import' function in nxclient to import the keys and try to connect and always get the following detail when I failed to connect... NX> 203 NXSSH running with pid: 21106 NX> 285 Enabling check on switch command NX> 285 Enabling skip of SSH config files NX> 200 Connected to address: 192.168.2.1 on port: 22 NX> 202 Authenticating user: nx NX> 208 Using auth method: publickey NX> 204 Authentication failed. what's the trick - there is obviously something very important missing from the web page. Thanks Craig

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