From: Gerson R. de l. S. L. <ge...@la...> - 2008-10-29 18:13:16
|
adscom01:~/Desktop/emulacion redes # vnumlparser.pl -t dynavnuml.xml -v -u root -Z host> /usr/bin/touch /root/.vnuml/LOCK host> /sbin/modprobe tun host> /usr/bin/touch /root/.vnuml/simulations/dynavnuml/lock host> /usr/sbin/tunctl -u 0 -t H1-e1 -f /dev/net/tun Set 'H1-e1' persistent and owned by uid 0 host> /sbin/ifconfig H1-e1 0.0.0.0 promisc up host> /usr/sbin/tunctl -u 0 -t H2-e1 -f /dev/net/tun Set 'H2-e1' persistent and owned by uid 0 host> /sbin/ifconfig H2-e1 0.0.0.0 promisc up host> /usr/sbin/tunctl -u 0 -t H3-e1 -f /dev/net/tun Set 'H3-e1' persistent and owned by uid 0 host> /sbin/ifconfig H3-e1 0.0.0.0 promisc up host> /usr/sbin/tunctl -u 0 -t H4-e1 -f /dev/net/tun Set 'H4-e1' persistent and owned by uid 0 host> /sbin/ifconfig H4-e1 0.0.0.0 promisc up host> /sbin/brctl addbr Net0 host> /sbin/brctl stp Net0 off host> /sbin/ifconfig Net0 0.0.0.0 promisc up host> /sbin/brctl addbr Net1 host> /sbin/brctl stp Net1 off host> /sbin/ifconfig Net1 0.0.0.0 promisc up host> /sbin/brctl addbr Net2 host> /sbin/brctl stp Net2 off host> /sbin/ifconfig Net2 0.0.0.0 promisc up host> /sbin/brctl addbr Net3 host> /sbin/brctl stp Net3 off host> /sbin/ifconfig Net3 0.0.0.0 promisc up host> /usr/sbin/tunctl -t Net0 -u 0 -f /dev/net/tun TUNSETIFF: Invalid argument host> /sbin/ifconfig Net0 10.1.0.10 netmask 255.255.255.0 promisc host> /sbin/route -A inet add -net 10.0.0.0/16 gw 10.1.0.1 host> /bin/chown -R 0 /root/.vnuml host> /sbin/brctl addif Net1 H1-e1 host> /sbin/brctl addif Net1 H2-e1 host> /sbin/brctl addif Net2 H3-e1 host> /sbin/brctl addif Net3 H4-e1 H1> #!/bin/bash H1> # UML boot file generated by vnumlparser.pl at Thu Oct 9 11:26:46 CEST 2008 H1> UTILDIR=/mnt/vnuml H1> hostname H1 H1> ifconfig eth1 0.0.0.0 promisc up H1> ifconfig eth1 10.1.1.10 netmask 255.255.255.0 H1> route -A inet add default gw 10.1.1.1 H1> HOSTNAME=$(hostname) H1> grep $HOSTNAME /etc/hosts > /dev/null 2>&1 H1> if [ $? == 1 ] H1> then H1> echo >> /etc/hosts H1> echo \# Hostname configuration >> /etc/hosts H1> echo "10.1.1.10 $HOSTNAME" >> /etc/hosts H1> fi H1> mount none /mnt/hostfs -t hostfs -o /root/.vnuml/simulations/dynavnuml/vms/H1/hostfs H1> if [ $? != 0 ] H1> then H1> mount none /mnt/hostfs -t hostfs H1> fi H1> echo init_start > /proc/mconsole H1> function add_groups() { H1> while read group; do H1> if ! grep "^$group:" /etc/group > /dev/null 2>&1; then H1> groupadd $group H1> fi H1> done<$groups_file H1> } H1> function add_keys() { H1> eval homedir=~$1 H1> if ! [ -d $homedir/.ssh ]; then H1> su -pc "mkdir -p $homedir/.ssh" $1 H1> chmod 700 $homedir/.ssh H1> fi H1> if ! [ -f $homedir/.ssh/authorized_keys ]; then H1> su -pc "touch $homedir/.ssh/authorized_keys" $1 H1> fi H1> while read key; do H1> if ! grep "$key" $homedir/.ssh/authorized_keys > /dev/null 2>&1; then H1> echo $key >> $homedir/.ssh/authorized_keys H1> fi H1> done<$file H1> } H1> for file in `ls $UTILDIR/group_* 2> /dev/null`; do H1> options= H1> myuser=${file#$UTILDIR/group_} H1> if [ "$myuser" == "root" ]; then continue; fi H1> groups_file = `sed "s/^\*//" $file` H1> add_groups H1> if effective_group=`grep "^\*" $file`; then H1> options="$options -g ${effective_group#\*}" H1> fi H1> other_groups=`sed '/^*/d;H;$!d;g;y/\n/,/' $file` H1> if grep "^$myuser:" /etc/passwd > /dev/null 2>&1; then H1> other_groups="-G `su -pc groups $myuser | sed 's/[[:space:]]\+/,/g'`$other_groups" H1> usermod $options $initial_groups$other_groups $myuser H1> else H1> if [ "$other_groups" != "" ]; then other_groups="-G ${other_groups#,}"; fi H1> useradd -m $options $other_groups $myuser H1> fi H1> done H1> for file in `ls $UTILDIR/keyring_* 2> /dev/null`; do H1> add_keys ${file#$UTILDIR/keyring_} < $file H1> done host> /bin/chmod a+x /tmp/vnuml_opt_fs.Q16626/umlboot host> /usr/bin/mkisofs -R -quiet -o /root/.vnuml/simulations/dynavnuml/vms/H1/fs/opt_fs /tmp/vnuml_opt_fs.Q16626/ host> /bin/rm -rf /tmp/vnuml_opt_fs.Q16626/ H2> #!/bin/bash H2> # UML boot file generated by vnumlparser.pl at Thu Oct 9 11:26:46 CEST 2008 H2> UTILDIR=/mnt/vnuml H2> hostname H2 H2> ifconfig eth1 0.0.0.0 promisc up H2> ifconfig eth1 10.1.1.11 netmask 255.255.255.0 H2> route -A inet add default gw 10.1.1.1 H2> HOSTNAME=$(hostname) H2> grep $HOSTNAME /etc/hosts > /dev/null 2>&1 H2> if [ $? == 1 ] H2> then H2> echo >> /etc/hosts H2> echo \# Hostname configuration >> /etc/hosts H2> echo "10.1.1.11 $HOSTNAME" >> /etc/hosts H2> fi H2> mount none /mnt/hostfs -t hostfs -o /root/.vnuml/simulations/dynavnuml/vms/H2/hostfs H2> if [ $? != 0 ] H2> then H2> mount none /mnt/hostfs -t hostfs H2> fi H2> echo init_start > /proc/mconsole H2> function add_groups() { H2> while read group; do H2> if ! grep "^$group:" /etc/group > /dev/null 2>&1; then H2> groupadd $group H2> fi H2> done<$groups_file H2> } H2> function add_keys() { H2> eval homedir=~$1 H2> if ! [ -d $homedir/.ssh ]; then H2> su -pc "mkdir -p $homedir/.ssh" $1 H2> chmod 700 $homedir/.ssh H2> fi H2> if ! [ -f $homedir/.ssh/authorized_keys ]; then H2> su -pc "touch $homedir/.ssh/authorized_keys" $1 H2> fi H2> while read key; do H2> if ! grep "$key" $homedir/.ssh/authorized_keys > /dev/null 2>&1; then H2> echo $key >> $homedir/.ssh/authorized_keys H2> fi H2> done<$file H2> } H2> for file in `ls $UTILDIR/group_* 2> /dev/null`; do H2> options= H2> myuser=${file#$UTILDIR/group_} H2> if [ "$myuser" == "root" ]; then continue; fi H2> groups_file = `sed "s/^\*//" $file` H2> add_groups H2> if effective_group=`grep "^\*" $file`; then H2> options="$options -g ${effective_group#\*}" H2> fi H2> other_groups=`sed '/^*/d;H;$!d;g;y/\n/,/' $file` H2> if grep "^$myuser:" /etc/passwd > /dev/null 2>&1; then H2> other_groups="-G `su -pc groups $myuser | sed 's/[[:space:]]\+/,/g'`$other_groups" H2> usermod $options $initial_groups$other_groups $myuser H2> else H2> if [ "$other_groups" != "" ]; then other_groups="-G ${other_groups#,}"; fi H2> useradd -m $options $other_groups $myuser H2> fi H2> done H2> for file in `ls $UTILDIR/keyring_* 2> /dev/null`; do H2> add_keys ${file#$UTILDIR/keyring_} < $file H2> done host> /bin/chmod a+x /tmp/vnuml_opt_fs.R16631/umlboot host> /usr/bin/mkisofs -R -quiet -o /root/.vnuml/simulations/dynavnuml/vms/H2/fs/opt_fs /tmp/vnuml_opt_fs.R16631/ host> /bin/rm -rf /tmp/vnuml_opt_fs.R16631/ H3> #!/bin/bash H3> # UML boot file generated by vnumlparser.pl at Thu Oct 9 11:26:46 CEST 2008 H3> UTILDIR=/mnt/vnuml H3> hostname H3 H3> ifconfig eth1 0.0.0.0 promisc up H3> ifconfig eth1 10.1.2.10 netmask 255.255.255.0 H3> route -A inet add default gw 10.1.2.1 H3> HOSTNAME=$(hostname) H3> grep $HOSTNAME /etc/hosts > /dev/null 2>&1 H3> if [ $? == 1 ] H3> then H3> echo >> /etc/hosts H3> echo \# Hostname configuration >> /etc/hosts H3> echo "10.1.2.10 $HOSTNAME" >> /etc/hosts H3> fi H3> mount none /mnt/hostfs -t hostfs -o /root/.vnuml/simulations/dynavnuml/vms/H3/hostfs H3> if [ $? != 0 ] H3> then H3> mount none /mnt/hostfs -t hostfs H3> fi H3> echo init_start > /proc/mconsole H3> function add_groups() { H3> while read group; do H3> if ! grep "^$group:" /etc/group > /dev/null 2>&1; then H3> groupadd $group H3> fi H3> done<$groups_file H3> } H3> function add_keys() { H3> eval homedir=~$1 H3> if ! [ -d $homedir/.ssh ]; then H3> su -pc "mkdir -p $homedir/.ssh" $1 H3> chmod 700 $homedir/.ssh H3> fi H3> if ! [ -f $homedir/.ssh/authorized_keys ]; then H3> su -pc "touch $homedir/.ssh/authorized_keys" $1 H3> fi H3> while read key; do H3> if ! grep "$key" $homedir/.ssh/authorized_keys > /dev/null 2>&1; then H3> echo $key >> $homedir/.ssh/authorized_keys H3> fi H3> done<$file H3> } H3> for file in `ls $UTILDIR/group_* 2> /dev/null`; do H3> options= H3> myuser=${file#$UTILDIR/group_} H3> if [ "$myuser" == "root" ]; then continue; fi H3> groups_file = `sed "s/^\*//" $file` H3> add_groups H3> if effective_group=`grep "^\*" $file`; then H3> options="$options -g ${effective_group#\*}" H3> fi H3> other_groups=`sed '/^*/d;H;$!d;g;y/\n/,/' $file` H3> if grep "^$myuser:" /etc/passwd > /dev/null 2>&1; then H3> other_groups="-G `su -pc groups $myuser | sed 's/[[:space:]]\+/,/g'`$other_groups" H3> usermod $options $initial_groups$other_groups $myuser H3> else H3> if [ "$other_groups" != "" ]; then other_groups="-G ${other_groups#,}"; fi H3> useradd -m $options $other_groups $myuser H3> fi H3> done H3> for file in `ls $UTILDIR/keyring_* 2> /dev/null`; do H3> add_keys ${file#$UTILDIR/keyring_} < $file H3> done host> /bin/chmod a+x /tmp/vnuml_opt_fs.Y16636/umlboot host> /usr/bin/mkisofs -R -quiet -o /root/.vnuml/simulations/dynavnuml/vms/H3/fs/opt_fs /tmp/vnuml_opt_fs.Y16636/ host> /bin/rm -rf /tmp/vnuml_opt_fs.Y16636/ H4> #!/bin/bash H4> # UML boot file generated by vnumlparser.pl at Thu Oct 9 11:26:46 CEST 2008 H4> UTILDIR=/mnt/vnuml H4> hostname H4 H4> ifconfig eth1 0.0.0.0 promisc up H4> ifconfig eth1 10.1.3.10 netmask 255.255.255.0 H4> route -A inet add default gw 10.1.3.1 H4> HOSTNAME=$(hostname) H4> grep $HOSTNAME /etc/hosts > /dev/null 2>&1 H4> if [ $? == 1 ] H4> then H4> echo >> /etc/hosts H4> echo \# Hostname configuration >> /etc/hosts H4> echo "10.1.3.10 $HOSTNAME" >> /etc/hosts H4> fi H4> mount none /mnt/hostfs -t hostfs -o /root/.vnuml/simulations/dynavnuml/vms/H4/hostfs H4> if [ $? != 0 ] H4> then H4> mount none /mnt/hostfs -t hostfs H4> fi H4> echo init_start > /proc/mconsole H4> function add_groups() { H4> while read group; do H4> if ! grep "^$group:" /etc/group > /dev/null 2>&1; then H4> groupadd $group H4> fi H4> done<$groups_file H4> } H4> function add_keys() { H4> eval homedir=~$1 H4> if ! [ -d $homedir/.ssh ]; then H4> su -pc "mkdir -p $homedir/.ssh" $1 H4> chmod 700 $homedir/.ssh H4> fi H4> if ! [ -f $homedir/.ssh/authorized_keys ]; then H4> su -pc "touch $homedir/.ssh/authorized_keys" $1 H4> fi H4> while read key; do H4> if ! grep "$key" $homedir/.ssh/authorized_keys > /dev/null 2>&1; then H4> echo $key >> $homedir/.ssh/authorized_keys H4> fi H4> done<$file H4> } H4> for file in `ls $UTILDIR/group_* 2> /dev/null`; do H4> options= H4> myuser=${file#$UTILDIR/group_} H4> if [ "$myuser" == "root" ]; then continue; fi H4> groups_file = `sed "s/^\*//" $file` H4> add_groups H4> if effective_group=`grep "^\*" $file`; then H4> options="$options -g ${effective_group#\*}" H4> fi H4> other_groups=`sed '/^*/d;H;$!d;g;y/\n/,/' $file` H4> if grep "^$myuser:" /etc/passwd > /dev/null 2>&1; then H4> other_groups="-G `su -pc groups $myuser | sed 's/[[:space:]]\+/,/g'`$other_groups" H4> usermod $options $initial_groups$other_groups $myuser H4> else H4> if [ "$other_groups" != "" ]; then other_groups="-G ${other_groups#,}"; fi H4> useradd -m $options $other_groups $myuser H4> fi H4> done H4> for file in `ls $UTILDIR/keyring_* 2> /dev/null`; do H4> add_keys ${file#$UTILDIR/keyring_} < $file H4> done host> /bin/chmod a+x /tmp/vnuml_opt_fs.W16641/umlboot host> /usr/bin/mkisofs -R -quiet -o /root/.vnuml/simulations/dynavnuml/vms/H4/fs/opt_fs /tmp/vnuml_opt_fs.W16641/ host> /bin/rm -rf /tmp/vnuml_opt_fs.W16641/ host> /bin/chown 0 /tmp/vnuml_notify.ctl.X16646 host> /bin/chown -R 0 /root/.vnuml daemon: /usr/local/share/vnuml/kernels/linux ubdb=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/opt_fs ubda=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/root_cow_fs hostfs=/root/.vnuml/simulations/dynavnuml/vms/H1/hostfs mem=32M eth1=tuntap,H1-e1,fe:fd:0:0:1:1 uml_dir=/root/.vnuml/simulations/dynavnuml/vms/H1/ umid=run con=null con1=pts mconsole=notify:/tmp/vnuml_notify.ctl.X16646 Checking that ptrace can change system call numbers...OK Checking syscall emulation patch for ptrace...missing Checking for tmpfs mount on /dev/shm...nothing mounted on /dev/shm Checking PROT_EXEC mmap in /tmp/...OK Checking for the skas3 patch in the host: - /proc/mm...not found - PTRACE_FAULTINFO...not found - PTRACE_LDT...not found UML running in SKAS0 mode Checking that ptrace can change system call numbers...OK Checking syscall emulation patch for ptrace...missing Boot timeout for virtual machine H1 reached. Abort, Retry, or Continue? [A/r/c]: |
From: Gordon R. <drg...@gm...> - 2008-10-30 09:58:21
|
Hi. Having made the swap from 32 to 64 bit hosts myself this month, I have found them to be very reliable and without the problems you seem to be happening. You are using a really old kernel. I suggest upgrading both the host and guest kernels to something more modern. Previously I had been using 2.6.7, and this definitely caused problems in the move to 64 bits. 2.6.18 for me ran but had the odd little quirk which made it problematic. You dont say what version your guest kernel is, but try to get both updated. The other thing which caught me out was the uml tools, which I compiled on another machine. When I upgraded the readline library had undergone major revisions, and so the tools needed to be recompiled. Do "ldd" on the tools (like uml_mconsole) to make sure they all link to current dlls. You should really have /dev/shm as a tmpfs mount. Never seen a standard install without this as default (but I use fedora). I also originally had con2 to 7 in the inittab of the virtual machine. Why not give all the con2..7 devices a pty? But thats a longshot. Best of luck. Gordon. 2008/10/29 Gerson Rodríguez de los Santos López <ge...@la...>: > 1) In case 2, the "linux" process becomes "defunct" according to "ps -e" > output. As a result, the VM does not boot. The key point seems to be the > command line invoked by VNUML presented here (full trace attached in > output.txt): > > /daemon: /usr/local/share/vnuml/kernels/linux > ubdb=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/opt_fs > ubda=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/root_cow_fs > hostfs=/root/.vnuml/simulations/dynavnuml/vms/H1/hostfs mem=32M > eth1=tuntap,H1-e1,fe:fd:0:0:1:1 > uml_dir=/root/.vnuml/simulations/dynavnuml/vms/H1/ umid=run con=null > con1=pts mconsole=notify:/tmp/vnuml_notify.ctl.X16646 > > 2) I have tried executing the UML kernel myself with that same command line. > After printing "Checking syscall emulation patch for ptrace...missing", the > proccess finishes with no further error message displayed in the console. I > don't even receive an status notification on how the process ends (Stopped, > Aborted or Segmentation Fault). > > 3) I have also tried executing the following line at > /usr/local/share/vnuml/kernels: "./linux > ubda=../filesystems/root_fs_tutorial mem=32M". The VM starts succesfully and > I can log as root as usual. (May it have something to do with the COW > feature?) No one in the VNUML forum seems to know anything about it and the > forum administrator advised to expose my problem here. > > I have seen the archives to see if there is a similar problem, but I haven't > found someone with the same problem as me I am specially interested in using > 64 bit host OS as it is the only way we can fully use the system resources > our servers have. Is there anything I am doing wrong? |
From: Gerson R. de l. S. L. <ge...@la...> - 2008-10-30 10:24:38
|
Hi. Thanks so much for your advice! My host kernel in the 64 bit SUSE Linux Enterprise Server is 2.6.16.60-0.30-smp. I also tried Ubuntu 8.04 64 bit, which uses 2.6.24 kernels. My guest kernel is linux-um-2.6.18.1-bb2-xt-4m in both cases, provided by VNUML project (compiled for 32 bit). In case I didn't express it correctly I summarise. (I hope I'm not confusing between the concept of host (physical kernel) with guest (UML kernel) kernels, is it not?) Case 1) Host: 32 bits (2.6.24). Guest, UML Kernel: 32 bits. (linux-um-2.6.18.1-bb2-xt-4m) Case 2) Host: 64 bits (2.6.24, 2.6.16). Guest: 32 bits. (the same linux-um-2.6.18.1-bb2-xt-4m) In both cases the host kernel is not too old (at least in the case of Ubuntu). VNUML provides a tutorial to compile your own VNUML kernel, so I'll try downloading a recent image from kernel.org and compiling it myself and see what happens. I will also try to see if there is something strange about libraries or /dev/shm. Anyway, thanks again for your reply. Gerson. Gordon Russell wrote: > Hi. > Having made the swap from 32 to 64 bit hosts myself this month, I have > found them to be very reliable and without the problems you seem to be > happening. > > You are using a really old kernel. I suggest upgrading both the host > and guest kernels to something more modern. Previously I had been > using 2.6.7, and this definitely caused problems in the move to 64 > bits. 2.6.18 for me ran but had the odd little quirk which made it > problematic. You dont say what version your guest kernel is, but try > to get both updated. > > The other thing which caught me out was the uml tools, which I > compiled on another machine. When I upgraded the readline library had > undergone major revisions, and so the tools needed to be recompiled. > Do "ldd" on the tools (like uml_mconsole) to make sure they all link > to current dlls. > > You should really have /dev/shm as a tmpfs mount. Never seen a > standard install without this as default (but I use fedora). > > I also originally had con2 to 7 in the inittab of the virtual machine. > Why not give all the con2..7 devices a pty? But thats a longshot. > > Best of luck. > Gordon. > > > 2008/10/29 Gerson Rodríguez de los Santos López <ge...@la...>: > > >> 1) In case 2, the "linux" process becomes "defunct" according to "ps -e" >> output. As a result, the VM does not boot. The key point seems to be the >> command line invoked by VNUML presented here (full trace attached in >> output.txt): >> >> /daemon: /usr/local/share/vnuml/kernels/linux >> ubdb=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/opt_fs >> ubda=/root/.vnuml/simulations/dynavnuml/vms/H1/fs/root_cow_fs >> hostfs=/root/.vnuml/simulations/dynavnuml/vms/H1/hostfs mem=32M >> eth1=tuntap,H1-e1,fe:fd:0:0:1:1 >> uml_dir=/root/.vnuml/simulations/dynavnuml/vms/H1/ umid=run con=null >> con1=pts mconsole=notify:/tmp/vnuml_notify.ctl.X16646 >> >> 2) I have tried executing the UML kernel myself with that same command line. >> After printing "Checking syscall emulation patch for ptrace...missing", the >> proccess finishes with no further error message displayed in the console. I >> don't even receive an status notification on how the process ends (Stopped, >> Aborted or Segmentation Fault). >> >> 3) I have also tried executing the following line at >> /usr/local/share/vnuml/kernels: "./linux >> ubda=../filesystems/root_fs_tutorial mem=32M". The VM starts succesfully and >> I can log as root as usual. (May it have something to do with the COW >> feature?) No one in the VNUML forum seems to know anything about it and the >> forum administrator advised to expose my problem here. >> >> I have seen the archives to see if there is a similar problem, but I haven't >> found someone with the same problem as me I am specially interested in using >> 64 bit host OS as it is the only way we can fully use the system resources >> our servers have. Is there anything I am doing wrong? >> > > . > > |
From: Gordon R. <drg...@gm...> - 2008-10-30 11:55:54
|
I would still get you to update the host kernels to something newer. That way you are sure it is not a kernel version think. 64 bit support is much better as the guest kernels get newer. Gordon. > Case 1) Host: 32 bits (2.6.24). Guest, UML Kernel: 32 bits. > (linux-um-2.6.18.1-bb2-xt-4m) > Case 2) Host: 64 bits (2.6.24, 2.6.16). Guest: 32 bits. (the same > linux-um-2.6.18.1-bb2-xt-4m) > > In both cases the host kernel is not too old (at least in the case of |
From: Jeff D. <jd...@ad...> - 2008-10-30 13:51:05
|
On Thu, Oct 30, 2008 at 11:31:48AM +0000, Gordon Russell wrote: > I would still get you to update the host kernels to something newer. > That way you are sure it is not a kernel version think. I agree. There were some 32-bit compat ptrace bugs in that era - I don't remember version numbers - that broke 32-bit UMLs. Jeff -- Work email - jdike at linux dot intel dot com |
From: Gerson R. de l. S. L. <gs...@it...> - 2008-11-06 12:03:11
|
Hi everyone. I tried two solutions: 1) Compiling a new guest kernel. I got several errors during compilations with some kernel sources. I managed to compile successfully some sources, but the images didn't work at the end. Not even in a 32 bit system. I guess I did something horribly wrong xD. 2) Installing a 64 bit Ubuntu 8.10 with the latest version of the kernel. It uses a 2.6.27-7 kernel. It worked fine since the very beginning. I used exactly the same guest kernel image and filesystem, that is, I changed nothing but the host kernel. So, despite the guest kernel being a bit old it seems to work fine. Thanks so much for your help. I hope this helps other people with the same problem. Best regards. Gerson. Gordon Russell wrote: > I would still get you to update the host kernels to something newer. > That way you are sure it is not a kernel version think. 64 bit support > is much better as the guest kernels get newer. > > Gordon. > > >> Case 1) Host: 32 bits (2.6.24). Guest, UML Kernel: 32 bits. >> (linux-um-2.6.18.1-bb2-xt-4m) >> Case 2) Host: 64 bits (2.6.24, 2.6.16). Guest: 32 bits. (the same >> linux-um-2.6.18.1-bb2-xt-4m) >> >> In both cases the host kernel is not too old (at least in the case of >> > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > |
From: Gerson R. de l. S. L. <gs...@it...> - 2008-11-06 12:06:14
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Hi everyone. I tried two solutions: 1) Compiling a new guest kernel. I got several errors during compilations with some kernel sources. I managed to compile successfully some sources, but the images didn't work at the end. Not even in a 32 bit system. I guess I did something horribly wrong xD. 2) Installing a 64 bit Ubuntu 8.10 with the latest version of the kernel. It uses a 2.6.27-7 kernel. It worked fine since the very beginning. I used exactly the same guest kernel image and filesystem, that is, I changed nothing but the host kernel. So, despite the guest kernel being a bit old it seems to work fine. Thanks so much for your help. I hope this helps other people with the same problem. Best regards. Gerson. Gordon Russell wrote: > I would still get you to update the host kernels to something newer. > That way you are sure it is not a kernel version think. 64 bit support > is much better as the guest kernels get newer. > > Gordon. > > >> Case 1) Host: 32 bits (2.6.24). Guest, UML Kernel: 32 bits. >> (linux-um-2.6.18.1-bb2-xt-4m) >> Case 2) Host: 64 bits (2.6.24, 2.6.16). Guest: 32 bits. (the same >> linux-um-2.6.18.1-bb2-xt-4m) >> >> In both cases the host kernel is not too old (at least in the case of >> > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > |