Re: [Users] ovirt VM start fails - Perm Denied error

On 02/15/2012 01:27 PM, Dan Kenigsberg wrote: >On Wed, Feb 15, 2012 at 12:13:39PM +0530, Deepak C Shetty wrote: >>On 02/14/2012 02:55 PM, Dan Kenigsberg wrote: >>>On Tue, Feb 14, 2012 at 10:36:39AM +0530, Deepak C Shetty wrote: >>>>On 02/13/2012 03:16 PM, Dan Kenigsberg wrote: >>>>>On Sun, Feb 12, 2012 at 11:58:05PM +0530, Deepak C Shetty wrote: >>>>>>Hi, >>>>>> I have tried this multiple times and i hit the same error. >>>>>> >>>>>>I have 3 storage domains created (iso, data and export) all >>>>>>connected to the DC with DC status as Up and >>>>>>1 host with status as Up and the same (only) host acting as SPM. >>>>>> >>>>>>I used the engine-iso-uploader utility to upload my .iso to the iso domain. >>>>>>Created a new VM and attached a vdisk of type sparse (thin-prov) and >>>>>>click on "Run Once", >>>>>>where i select "Attach CD" and select my .iso, and change boot order >>>>>>to boot from CD, then disk. >>>>>> >>>>>>But i get this error... >>>>>> >>>>>>VM first-ovirt-vm is down. Exit message internal error process >>>>>>exited while connecting to monitor: qemu-kvm: -drive file=/rhev/data-center/4087fea7-b54a-4318-8d5c-828eff8846f4/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw: >>>>>>could not open disk image /rhev/data-center/4087fea7-b54a-4318-8d5c-828eff8846f4/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso: >>>>>>Permission denied . >>>>>> >>>>>>I am unable to figure out why.. bcos the user.group perms for the >>>>>>.iso are fine. >>>>>>In fact i logged into the system serving the nfs share and added 0777 perms >>>>>>still i get the same error. Here is the snip of how the perms for >>>>>>.iso look like... >>>>>> >>>>>>ll /tmp/iso1-domain/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso >>>>>>-rwxr-xr-x. 1 vdsm kvm 3757047808 Feb 13 04:24 /tmp/iso1-domain/35f880f8-bd0c-4063-b171-2ddaa59e1212/images/11111111-1111-1111-1111-111111111111/Fedora-16-x86_64-DVD.iso >>>>>would you try `ls -lZ` ? Does your /var/log/audit/audit.log shows an >>>>>selinux problem? What's `getenforce`? And `getsebool virt_use_nfs`? >>>>Hi Dan, >>>> Thanks for the hint, after setting virt_use_nfs, it worked for me. >>>>Strangely VDSM should have set it, not sure why it didn't. >>>I suppose this is related to the fact that your `semanage` hangs. Please >>>help us understand why. >>> >>Hello Dan, >> This is what strace dumped, when i attached to the semanage process. >>Note that i am only pasting the last few lines.. as the dump was large... >>Let me know if you need to entire dump... >I'd better know if strace seems to be advancing anywhere. Is there a >blocking system call? For how long did you wait? (I guess I should have >asked for `strace -t`) > You are rite, i did not wait enuf for it to finish may be. This time i did.. it took ~ 2.5 mins to finish the semanage cmd. I started with -t this time, so here is the time gap (wait) that i see... 20:12:20 close(5) = 0 20:12:20 open("/etc/selinux/targeted/modules/tmp/netfilter_contexts", O_WRONLY|O_CREAT|O_TRUNC, 0600) = 5 20:12:20 write(5, "", 0) = 0 >20:12:20 close(5) = 0 >20:15:19 open("/etc/selinux/targeted/modules/tmp/commit_num", O_RDONLY) = 5 20:15:19 read(5, "4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 32) = 32 20:15:19 close(5) = 0 I marked the gap with > .. let me know if you need the entire dump ?