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34758 discussions

C5 XEN domain not startable
by Dave Stevens 31 Mar '10

31 Mar '10

Hi, I have a Centos 5 box with dom0 and several domUs and one of them is not runnable. I ran updates several days ago and the update included a kernel update so I used virt-manager to reboot. But it won't book. It shows as not running and when I try to run it I get a dialog box with this: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 498, in run_domain vm.startup() File "/usr/share/virt-manager/virtManager/domain.py", line 573, in startup self.vm.create() File "/usr/lib64/python2.4/site-packages/libvirt.py", line 287, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: Unknown failure I don't know what to do about this. Anyone have ideas? Dave -- "It is no measure of health to be well adjusted to a profoundly sick society." Krishnamurti

2 2

OT rpmbuild looping
by JohnS 31 Mar '10

31 Mar '10

Any one aware of some type of looping macro for rpmbuild instead of creating an outside script to loop on something like rpmbuild -b[STAGE]. Or anything like a Debugger Stepthrough John

1 0

IBM Touchscreen
by Janez Kosmrlj 31 Mar '10

31 Mar '10

Hi, i have some old IBM USB touchscreens, that insist on not working correctly under CentOS. I tried to use the 3m driver and the elousb driver, but none of them work. The touch part works out of the box witohut any drivers, but i can't find a way to calibrate them The y axis is inverted and the X axis is a bit off. Here is the output form lsusb: Bus 003 Device 002: ID 0596:0001 MicroTouch Systems, Inc. Touchscreen We also have some new models from IBM and they work with elousb driver. We also have some 3m monitors which work with the 3m drivers. Regards, Janez

2 3

selinux on xen virtual machines
by lhecking＠users.sourceforge.net 31 Mar '10

31 Mar '10

I rebuilt my xen host with the 64-bit OS and am in the process of recreating the guests, both 32 and 64 bit. I use a kickstart installation with virt-install, and so far none of the installation attempts has completed. Anaconda indicates installation should take about 2-3 minutes, but when it comes to installation of selinux policies, it just sits there, and I have no idea what it's doing. No progress 15 minutes later, and it doesn't make a difference whether I disable or not selinux in the kickstart configuration. What's the best thing to do in this situation? CentOS 5.4 with all current updates. --------------------------------------------------------------- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. ---------------------------------------------------------------

1 1

Disable specific LUN on a SCSI bus
by Lorenzo Quatrini 31 Mar '10

31 Mar '10

Hi all, do you know if there is a way at boot time do disable specific LUN's on a SCSI bus of a particular controller? I'm trying to write an udev rule, but it seems that the system ignores the "vendor" model/name of the controller... For example: I want to disable /dev/sdb; so I gather some information with udevinfo -a -p /sys/block/sdb and I try to use them to write /etc/udev/rules.d/10-custom.rules ID=="?:0:1:0", BUS=="scsi", DRIVER=="sd", SYSFS{model}=="DDYS-T36950N ", SYSFS{vendor}=="IBM ", OPTIONS="ignore_device", OPTIONS+="last_rule" I put the "?" on the ID field because I know that the order of the controller can change (a kernel update could trigger the switch); also I tried with and without the spaces at the end of vendor and model: no change Where am I wrong? It is a different way of doing this? TIA Ciao Lorenzo

3 7

very strange
by cahit Eyigünlü 31 Mar '10

31 Mar '10

i have 2 servers in a datacenter and each of them has 2 virtual machines one is linux the other is windows of wirtual machines. when i want to transfer my ip addresses between theese servers , for ex: let me say main server 1' guest windows : A main server 1' guest CentOs: B main server 2' guest windows : C main server 1' guest CentOs: D when i handle an ip of any computers ip in network from A or C it directly handles, no matter where the ip routed from cisco router :D but when i want to handle any computers ip in network from B or D it never get the ip from other source :D how this could happen :)

2 1

Define HTTP proxy system-wide (Squid and Squidguard) ?
by Niki Kovacs 31 Mar '10

31 Mar '10

Hi, I'm currently configuring Squid and Squidguard for filtering web access in a public computer room. So far, everything works fine. I know how to configure Firefox to use a proxy, but there's no way to protect that configuration, e. g. a more knowledgeable user might circumvent this configuration. Is there some way to configure an HTTP proxy system-wide? Cheers from the sunny South of France, Niki

3 2

Re: [CentOS] mounting gfs partition hangs
by sandra-llistes 31 Mar '10

31 Mar '10

Hi, I'm not a GFS expert either :-) In fact, I erased all the configuration of the cluster and try to do it again from scratch with luci/ricci configuration tools (perhaps I did something wrong last time) mount -vv gives the following information: [root@node1 gfs]# mount -t gfs -vv /dev/home2/home2 /home2 /sbin/mount.gfs: mount /dev/mapper/home2-home2 /home2 /sbin/mount.gfs: parse_opts: opts = "rw" /sbin/mount.gfs: clear flag 1 for "rw", flags = 0 /sbin/mount.gfs: parse_opts: flags = 0 /sbin/mount.gfs: parse_opts: extra = "" /sbin/mount.gfs: parse_opts: hostdata = "" /sbin/mount.gfs: parse_opts: lockproto = "" /sbin/mount.gfs: parse_opts: locktable = "" /sbin/mount.gfs: message to gfs_controld: asking to join mountgroup: /sbin/mount.gfs: write "join /home2 gfs lock_dlm gfs-test:gfs-data rw /dev/mapper/home2-home2" ... And hangs at that point (On the other node it happens the same) I tried it turning off the local firewalls on the nodes and they reached each other without problem with pings. Also, there are no more firewalls between them. The new configuration is more simple: [root@node1 gfs]# more /etc/cluster/cluster.conf <?xml version="1.0"?> <cluster alias="gfs-test" config_version="6" name="gfs-test"> <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/> <clusternodes> <clusternode name="node1.fib.upc.es" nodeid="1" votes="1"> <fence> <method name="1"> <device name="test" nodename="node1.fib.upc.es"/> </method> </fence> </clusternode> <clusternode name="node2.fib.upc.es" nodeid="2" votes="1"> <fence> <method name="1"> <device name="test" nodename="node2.fib.upc.es"/> <device name="test" nodename="node2.fib.upc.es"/> </method> </fence> </clusternode> </clusternodes> <cman expected_votes="1" two_node="1"/> <fencedevices> <fencedevice agent="fence_manual" name="test"/> </fencedevices> <rm> <failoverdomains/> <resources> <clusterfs device="/dev/home2/home2" force_unmount="0" fsid="3280" fstype="gfs" mountpoint="/home2" name="home" self_fence="0"/> </resources> </rm> </cluster> Finally, I reformatted /dev/home2/home2 with the following command that gave no errors but it doesn't affect the final result: gfs_mkfs -O -j 3 -p lock_dlm -t gfs-test:gfs-data /dev/home2/home2 Thanks, Sandra PD: I append an strace but I can't see anything useful. [root@node1 gfs]# strace mount /home2 execve("/bin/mount", ["mount", "/home2"], [/* 17 vars */]) = 0 brk(0) = 0x9874000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=26154, ...}) = 0 mmap2(NULL, 26154, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f51000 close(3) = 0 open("/lib/libblkid.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300 O\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=38620, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f50000 mmap2(0x4f0000, 40000, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4f0000 mmap2(0x4f9000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0x4f9000 close(3) = 0 open("/lib/libuuid.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\316V\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=15704, ...}) = 0 mmap2(0x56c000, 12792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x56c000 mmap2(0x56f000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0x56f000 close(3) = 0 open("/lib/libselinux.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000\245T\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=93508, ...}) = 0 mmap2(0x547000, 97112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x547000 mmap2(0x55d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15) = 0x55d000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340_8\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1611564, ...}) = 0 mmap2(0x370000, 1328580, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x370000 mmap2(0x4af000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13f) = 0x4af000 mmap2(0x4b2000, 9668, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4b2000 close(3) = 0 open("/lib/libdevmapper.so.1.02", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\220M\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0555, st_size=98576, ...}) = 0 mmap2(0x4d6000, 95648, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4d6000 mmap2(0x4ec000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16) = 0x4ec000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0PzK\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=16428, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f4f000 mmap2(0x4b7000, 12408, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4b7000 mmap2(0x4b9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0x4b9000 close(3) = 0 open("/lib/libsepol.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\20\37P\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=245376, ...}) = 0 mmap2(0x4ff000, 285024, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4ff000 mmap2(0x53a000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3b) = 0x53a000 mmap2(0x53b000, 39264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x53b000 close(3) = 0 open("/lib/librt.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200(V\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=44060, ...}) = 0 mmap2(0x561000, 33324, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x561000 mmap2(0x568000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0x568000 close(3) = 0 open("/lib/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\30L\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=129716, ...}) = 0 mmap2(0x4bd000, 90596, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4bd000 mmap2(0x4d0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13) = 0x4d0000 mmap2(0x4d2000, 4580, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4d2000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f4e000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f4d000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7f4d710, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0x4af000, 8192, PROT_READ) = 0 mprotect(0x367000, 4096, PROT_READ) = 0 mprotect(0x4b9000, 4096, PROT_READ) = 0 mprotect(0x568000, 4096, PROT_READ) = 0 mprotect(0x4d0000, 4096, PROT_READ) = 0 munmap(0xb7f51000, 26154) = 0 set_tid_address(0xb7f4d758) = 3702 set_robust_list(0xb7f4d760, 0xc) = 0 futex(0xbfb40774, FUTEX_WAKE_PRIVATE, 1) = 0 rt_sigaction(SIGRTMIN, {0x4c13d0, [], SA_SIGINFO}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x4c12e0, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0 uname({sys="Linux", node="node1.fib.upc.es", ...}) = 0 access("/etc/selinux/", F_OK) = 0 brk(0) = 0x9874000 brk(0x9895000) = 0x9895000 open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=448, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f57000 read(3, "# This file controls the state o"..., 4096) = 448 read(3, "", 4096) = 0 close(3) = 0 munmap(0xb7f57000, 4096) = 0 open("/proc/mounts", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f57000 read(3, "rootfs / rootfs rw 0 0\n/dev/root"..., 4096) = 744 close(3) = 0 munmap(0xb7f57000, 4096) = 0 open("/selinux/mls", O_RDONLY|O_LARGEFILE) = 3 read(3, "1", 19) = 1 close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 connect(3, {sa_family=AF_FILE, path="/var/run/setrans/.setrans-unix"...}, 110) = 0 sendmsg(3, {msg_name(0)=NULL, msg_iov(5)=[{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0", 1}, {"\0", 1}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 14 readv(3, [{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0\0\0\0", 4}], 3) = 12 readv(3, [{"\0", 1}], 1) = 1 close(3) = 0 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=56430448, ...}) = 0 mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7d4d000 close(3) = 0 umask(022) = 022 open("/dev/null", O_RDWR|O_LARGEFILE) = 3 close(3) = 0 getuid32() = 0 geteuid32() = 0 getgid32() = 0 getegid32() = 0 prctl(0x3, 0, 0, 0, 0) = 1 open("/etc/blkid/blkid.tab", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=972, ...}) = 0 fcntl64(3, F_GETFL) = 0 (flags O_RDONLY) fstat64(3, {st_mode=S_IFREG|0644, st_size=972, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f57000 _llseek(3, 0, [0], SEEK_CUR) = 0 read(3, "<device DEVNO=\"0xfd03\" TIME=\"126"..., 4096) = 972 read(3, "", 4096) = 0 close(3) = 0 munmap(0xb7f57000, 4096) = 0 getuid32() = 0 geteuid32() = 0 lstat64("/etc/mtab", {st_mode=S_IFREG|0644, st_size=446, ...}) = 0 readlink("/home2", 0xbfb3e637, 4096) = -1 EINVAL (Invalid argument) umask(077) = 022 open("/etc/fstab", O_RDONLY|O_LARGEFILE) = 3 umask(022) = 077 fstat64(3, {st_mode=S_IFREG|0644, st_size=1178, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f57000 read(3, "/dev/system/root / "..., 4096) = 1178 read(3, "", 4096) = 0 close(3) = 0 munmap(0xb7f57000, 4096) = 0 stat64("/sbin/mount.gfs", {st_mode=S_IFREG|0755, st_size=41368, ...}) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7f4d758) = 3703 wait4(-1, 0xbfb4028c, 0, NULL) = ? ERESTARTSYS (To be restarted)

1 1

Keyboard problems on Centos 5.4
by Darmath 31 Mar '10

31 Mar '10

I installed CentOS 5.4on a WMWare Server virtual machine that's running on win7. Everything seems to work fine except I get a shit load of error messages from the console along the lines of when I type on the keyboard: atkbd.c Unknown key released (translated set 2, code 0x81 on isa0060/serio0). atkbd.c Unknown key pressed (translated set 2, code 0x81 on isa0060/serio0). *atkbd*.*c*: Use '*setkeycodes* e059 <*keycode*>' to make it known. NB: the code's change and there doesn't seem to be any particular codes Is this because i'm running centos on the VM? Any ideas how i go about actually fixing this? I've had Centos dual booted with winxp on this same hardware previously without any problems. Being unfamilar (having not used Centos much) I don't really have any idea where to start to resolve this.

3 5

VMware server 2 - Strange behaviour
by Georghy 31 Mar '10

31 Mar '10

Hi everyone, I recently install VMware on a server using PAE kernel everything was great until I use vmware server everytime i'm connecting to the vmware server web interface after few seconds, the client loose server connection (server shows a loading page) I can't access to my VM till I log on the server run /etc/init.d/vmware restart I try to connect to the server again but connection still fails I try /etc/init.d/vmware stop /etc/init.d/vmware start then it respond me : Starting VMware services: Virtual machine monitor [FAIL] Virtual machine communication interface [ OK ] VM communication interface socket family: [FAIL] Virtual ethernet [FAIL] Bridged networking on /dev/vmnet0 [ OK ] I retry /etc/init.d/vmware start VMware Server is installed, but it has not been (correctly) configured for the running kernel. To (re-)configure it, invoke the following command: /usr/bin/vmware-config.pl. I try /usr/bin/vmware-config.pl but it doesn't work until I reboot I do reboot but connection fails again and I have to do the same thing above. what should I do to make thing working. /All help greatly/ appreciated -- Cordialement, / Greetings, Georghy FUSCO

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