cobbler January 2011

cobbler@lists.fedorahosted.org

22 participants
24 discussions

pxelocal.template and $pxe_menu_items
by Pablo Iranzo Gómez 28 Mar '11

28 Mar '11

Hi I would like to achieve something similar to pxedefault.template but with the custom options of pxelocal.template after a system has been provisoned. The idea is to offer the full range of profiles to each system as an aditional option. What I did was to put $pxe_menu_items stanza on the pxelocal.template as I did with pxedefault.template, but no matter what I do, it doesn't get rendered. After looking at the code at pxegen.py, I can see the metadata["pxe_menu_items"] in "make_actual_pxe_menu" (which outputs pxelinux.cfg/default) but not on the function referencing pxelocal.template ("write_pxe_file"), so my guess is that this is not implemented. ¿any hint? Thanks in advance Pablo -- Pablo Iranzo Gómez (Pablo.Iranzo(a)redhat.com) Senior Global Profesional Services Consultant (RHCA, RHCSS, RHCDS, RHCVA, RHCE, RHCSP) #804006196923216 Phone: +34 645 01 01 49 (CET/CEST) GnuPG KeyID: 0xFAD3CF0D

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Re: What does the default_password_crypted field do?
by Robert Cross 31 Jan '11

31 Jan '11

Joe Linoff wrote: > So I ran: > > % openssl passwd -1 'testit' > <value> > > and cut-n-pasted the<value> to the "default_password_crypted:" field in > /etc/cobbler/settings and updated everything: Doing better than I did then - I could never get this to work with my CentOS 5.5 cobbler server - anytime I tried it cobbler came back complaining that the resulting kickstart was corrupt/invalid. In the end I generate the password with grub-md5-crypt and that seemed to work fine (well, I've done about a dozen test installs since with no problems. :D > What does the default_password_crypted field do? As the comments in the settings file says, this field contains the encrypted password that'll be assigned to root for your newly provisioned systems. And the comments also warn you that if don't change this then you'll get a warning from the 'check' command - which I thought was a nice touch. HTH, Bob Cross.

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what happens if a snippet doesn't exist?
by Joe Linoff 28 Jan '11

28 Jan '11

Hi Folks: I have a kickstart template step where I customize the users on each system like this: # default users for all systems groupadd -g 2001 admin useradd --gid 2001 --uid 2001 --create-dir --shell /bin/bash --password 'sxdSJWdd/lka' admin ## Setup the individual users for this specific machine. #set local_user_setup = 'users/' + $getVar($name) $SNIPPET(local_user_setup) What happens if the users/$name snippet doesn't exist? Will the kickstart abort? Can I do a file check to test for existence in the template? Best regards, Joe

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koan hvm install: TypeError: coercing to Unicode: need string or buffer, NoneType found
by Gilles GAUDIN 28 Jan '11

28 Jan '11

Hi, need help with koan when I use hvm virt type. On cobbler server I launch following commands: cobbler system add --name=virttest --mac=[mac address of eth0 on cobbler server] --profile=Centos5-x86_64 --virt-type=xenfv cobbler sync Then on client I launch this command: koan --server=[IP address of eth0 on cobbler server] --virt --nogfx --system=virttest --virt-name=vm02 I can see this: - looking for Cobbler at http://192.168.0.52/cobbler_api - reading URL: http://192.168.0.52/cblr/svc/op/ks/system/virttest install_tree: http://192.168.0.52/cblr/links/Centos5-x86_64 libvirtd (pid 2531) en cours d'exÃ©cution... Fri, 28 Jan 2011 18:36:43 DEBUG No conn passed to Guest, opening URI 'None' - fullvirt mode libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName libvir: Xen error : Domain not found: xenUnifiedDomainLookupByUUID Fri, 28 Jan 2011 18:36:43 DEBUG Generated install XML: <domain type='xen'> <name>vm02</name> <currentMemory>524288</currentMemory> <memory>524288</memory> <uuid>dd4fa136-5f95-0872-a4d6-e6c7f3c82243</uuid> <os> <type>linux</type> <boot dev='network'/> <boot dev='hd'/> </os> <on_poweroff>destroy</on_poweroff> <on_reboot>destroy</on_reboot> <on_crash>destroy</on_crash> <vcpu>1</vcpu> <devices> <disk type='file' device='disk'> <driver name='tap'/> <source file='/var/lib/xen/images/vm02-disk0'/> <target dev='xvda' bus='xen'/> </disk> <interface type='bridge'> <source bridge='xenbr0'/> <mac address='00:13:72:52:D6:DC'/> </interface> <input type='mouse' bus='xen'/> </devices> </domain> Fri, 28 Jan 2011 18:36:43 DEBUG Generated boot XML: <domain type='xen'> <name>vm02</name> <currentMemory>524288</currentMemory> <memory>524288</memory> <uuid>dd4fa136-5f95-0872-a4d6-e6c7f3c82243</uuid> <bootloader>/usr/bin/pygrub</bootloader> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <vcpu>1</vcpu> <devices> <disk type='file' device='disk'> <driver name='tap'/> <source file='/var/lib/xen/images/vm02-disk0'/> <target dev='xvda' bus='xen'/> </disk> <interface type='bridge'> <source bridge='xenbr0'/> <mac address='00:13:72:52:D6:DC'/> </interface> <input type='mouse' bus='xen'/> </devices> </domain> libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName libvir: Xen Daemon error : POST operation failed: xend_post: error from xen daemon: (xend.err 'Error creating domain: coercing to Unicode: need string or buffer, NoneType found') libvirt.libvirtError POST operation failed: xend_post: error from xen daemon: (xend.err 'Error creating domain: coercing to Unicode: need string or buffer, NoneType found') File "/usr/lib/python2.4/site-packages/koan/app.py", line 225, in main k.run() File "/usr/lib/python2.4/site-packages/koan/app.py", line 356, in run self.virt() File "/usr/lib/python2.4/site-packages/koan/app.py", line 675, in virt return self.net_install(after_download) File "/usr/lib/python2.4/site-packages/koan/app.py", line 594, in net_install after_download(self, profile_data) File "/usr/lib/python2.4/site-packages/koan/app.py", line 673, in after_download self.virt_net_install(profile_data) File "/usr/lib/python2.4/site-packages/koan/app.py", line 1157, in virt_net_install qemu_driver_type = self.qemu_disk_type File "/usr/lib/python2.4/site-packages/koan/xencreate.py", line 190, in start_install guest.start_install() File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 1193, in start_install start_xml, final_xml, is_initial) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 1252, in _create_guest dom = self.conn.createLinux(start_xml or final_xml, 0) File "/usr/lib64/python2.4/site-packages/libvirt.py", line 974, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) /var/log/xend.log shows: [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:207) XendDomainInfo.create(['vm', ['name', 'vm02'], ['memory', '512'], ['maxmem', '512'], ['vcpus', '1'], ['uuid', 'dd4fa136-5f95-0872-a4d6-e6c7f3c82243'], ['on_poweroff', 'destroy'], ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['linux']], ['device', ['tap', ['dev', 'xvda'], ['uname', 'tap:aio:/var/lib/xen/images/vm02-disk0'], ['mode', 'w']]], ['device', ['vif', ['mac', '00:13:72:52:d6:dc'], ['bridge', 'xenbr0'], ['script', 'vif-bridge']]]]) [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:329) parseConfig: config is ['vm', ['name', 'vm02'], ['memory', '512'], ['maxmem', '512'], ['vcpus', '1'], ['uuid', 'dd4fa136-5f95-0872-a4d6-e6c7f3c82243'], ['on_poweroff', 'destroy'], ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['linux']], ['device', ['tap', ['dev', 'xvda'], ['uname', 'tap:aio:/var/lib/xen/images/vm02-disk0'], ['mode', 'w']]], ['device', ['vif', ['mac', '00:13:72:52:d6:dc'], ['bridge', 'xenbr0'], ['script', 'vif-bridge']]]] [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:446) parseConfig: result is {'features': None, 'image': ['linux'], 'cpus': None, 'vcpu_avail': None, 'backend': [], 'uuid': 'dd4fa136-5f95-0872-a4d6-e6c7f3c82243', 'on_reboot': 'destroy', 'cpu_weight': None, 'memory': 512, 'cpu_cap': None, 'localtime': None, 'timer_mode': None, 'start_time': None, 'on_poweroff': 'destroy', 'on_crash': 'destroy', 'device': [('tap', ['tap', ['dev', 'xvda'], ['uname', 'tap:aio:/var/lib/xen/images/vm02-disk0'], ['mode', 'w']]), ('vif', ['vif', ['mac', '00:13:72:52:d6:dc'], ['bridge', 'xenbr0'], ['script', 'vif-bridge']])], 'bootloader': None, 'maxmem': 512, 'shadow_memory': None, 'name': 'vm02', 'bootloader_args': None, 'vcpus': 1, 'cpu': None} [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:1784) XendDomainInfo.construct: None [2011-01-28 18:36:43 xend 2866] DEBUG (balloon:145) Balloon: 524404 KiB free; need 4096; done. [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:1953) XendDomainInfo.initDomain: 15 256 [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:1994) _initDomain:shadow_memory=0x0, maxmem=0x200, memory=0x200. [2011-01-28 18:36:43 xend 2866] DEBUG (balloon:145) Balloon: 524396 KiB free; need 524288; done. [2011-01-28 18:36:43 xend.XendDomainInfo 2866] ERROR (XendDomainInfo:219) Domain construction failed Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 212, in create vm.initDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 2019, in initDomain channel_details = self.image.createImage() File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line 122, in createImage return self.createDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line 130, in createDomain if not os.path.isfile(self.kernel): File "/usr/lib64/python2.4/posixpath.py", line 208, in isfile st = os.stat(path) TypeError: coercing to Unicode: need string or buffer, NoneType found [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:2189) XendDomainInfo.destroy: domid=15 [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:2114) UUID Created: False [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:2115) Devices to release: [], domid = 15 [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:2119) Releasing PVFB front-end devices (uuid not created)... [2011-01-28 18:36:43 xend.XendDomainInfo 2866] DEBUG (XendDomainInfo:2127) Releasing PVFB backend devices ... [2011-01-28 18:36:43 xend 2866] ERROR (SrvBase:88) Request create failed. Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/web/SrvBase.py", line 85, in perform return op_method(op, req) File "/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDomainDir.py", line 82, in op_create raise XendError("Error creating domain: " + str(ex)) XendError: Error creating domain: coercing to Unicode: need string or buffer, NoneType found /var/log/xend-debug.log shows: Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDomainDir.py", line 77, in op_create dominfo = self.xd.domain_create(config) File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", line 243, in domain_create dominfo = XendDomainInfo.create(config) File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 212, in create vm.initDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 2019, in initDomain channel_details = self.image.createImage() File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line 122, in createImage return self.createDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line 130, in createDomain if not os.path.isfile(self.kernel): File "/usr/lib64/python2.4/posixpath.py", line 208, in isfile st = os.stat(path) TypeError: coercing to Unicode: need string or buffer, NoneType found When I try to install guest vm directly from xen xm command there's no problems .... I try to solve this for two days, can't find anything that help me ! Client versions: from rpm: kernel-xen-2.6.18-194.32.1.el5 xen-libs-3.0.3-105.el5_5.5 xen-libs-3.0.3-105.el5_5.5 xen-3.0.3-105.el5_5.5 libvirt-python-0.6.3-33.el5_5.3 libvirt-0.6.3-33.el5_5.3 python-2.4.3-27.el5_5.3 libvirt-python-0.6.3-33.el5_5.3 koan-2.0.9-1.el5 from sources: virtinst-0.500.5 (try with rpm version: same issue) Cobbler server version: cobbler-2.0.9-1.el5 cobbler-web-2.0.9-1.el5 What is wrong ? Anyone can help me to solve this ? Thanks in advance. Djill

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[ LDAP authorization ] : FAILED
by BONDOIN Remi 28 Jan '11

28 Jan '11

Hi, I have install cobbler 2.0.9 on rhel 5.5. I have some troubles with some LDAP user authorization : -------------------------------------------------------------------------------------------------- Fri Jan 28 10:02:05 2011 - DEBUG | authorize; ['T0009097', 'modify_system', <cobbler.item_system.System instance at 0xa2d6cac>, None, 0] Fri Jan 28 10:02:05 2011 - INFO | Exception occured: cobbler.cexceptions.CX Fri Jan 28 10:02:05 2011 - INFO | Exception value: 'user T0009097 does not have access to resource: modify_system' Fri Jan 28 10:02:05 2011 - INFO | Exception Info: File "/usr/lib/python2.4/site-packages/cobbler/utils.py", line 122, in die raise CX(msg) Fri Jan 28 10:02:05 2011 - INFO | Exception occured: cobbler.cexceptions.CX Fri Jan 28 10:02:05 2011 - INFO | Exception value: 'user T0009097 does not have access to resource: modify_system' Fri Jan 28 10:02:05 2011 - INFO | Exception Info: File "/usr/lib/python2.4/site-packages/cobbler/remote.py", line 1535, in check_access_no_fail self.check_access(token,resource,arg1,arg2) File "/usr/lib/python2.4/site-packages/cobbler/remote.py", line 1544, in check_access rc = self.__authorize(token,resource,arg1,arg2) File "/usr/lib/python2.4/site-packages/cobbler/remote.py", line 1581, in __authorize utils.die(self.logger, "user %s does not have access to resource: %s" % (user,resource)) File "/usr/lib/python2.4/site-packages/cobbler/utils.py", line 130, in die raise CX(msg) ----------------------------------------------------------------------------------------------------- It works fine for lot of ldap user but failed for some of them. I verify user ldap definition and find nothing bad ... Does anyone has any idea ? Best Regards -- Ingénieur Systèmes Linux / Unix THALES - Critical Information Systems DIVISION Security Solutions & Services / Server Mgmt / Administration Systèmes

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What does the default_password_crypted field do?
by Joe Linoff 27 Jan '11

27 Jan '11

Hi Folks: I recently decided to change the cobbler password and found that the comment from "cobbler check" didn't really help. The comment said: 2 : The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed, try: "openssl passwd -1 -salt 'random-phrase-here' 'your-password-here'" to generate new one So I ran: % openssl passwd -1 'testit' <value> and cut-n-pasted the <value> to the "default_password_crypted:" field in /etc/cobbler/settings and updated everything: % service cobblerd restart % cobbler sync Unfortunately this didn't fix anything and I still couldn't log into the web interface with the new password. Note that I also tried using a salt but that didn't help either. I chose no salt for my initial test because the default entry did not use a salt. I finally got it to work using htdigest as follows: % htdigest /etc/cobbler/users.digest "Cobbler" cobbler New password: testit Re-type new password: testit % htdigest /etc/cobbler/users.digest "Cobbler" jlinoff Adding user jlinoff in realm Cobbler New password: testit1 Re-type new password: testit1 What does the default_password_crypted field do? Best regards, Joe

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Re: Snippet testing
by Robert Cross 27 Jan '11

27 Jan '11

Christian Horn wrote: > - deploy virtual systems, similiar in the relevant aspects to the real > systems. Used vmware in the past, nowadays kvm for this. > Can be faster than deployment of real systems. Unfortunately, I'm already doing this - that's why I wanted to use cobbler - I've got VirtualBox pretty well automated, but provisioning was a pain. > - when making the snippets compatible with a newer version of cobbler > (2.0.1 upwards got pickier about $variables that were not defined) > one can also simply compare the generated ks-instructions: > > cobbler system getks --name=sakura>getks_old > > # then updating cobbler, modifying the snippets so newer cobbler > # handles them > cobbler system getks --name=sakura>getks_new That's exactly what I was looking for - I obviously need to read the documentation more carefully in future! ;) Thanks. Unfortunately, I've now into another problem - rather than getting my (carefully crafted?) snippets in the output kickstart I'm getting the SNIPPET lines instead - the system is just echoing them into the file, rather than processing them. Anyone got some idea what (simple?) step I've missed out on? The web interface shows "my" snippets just fine, so I don't think it's something like protections/ownerships/etc. And I'm very sure that if kickstart comes across a line reading "SNIPPET('zz_netpatch')" that it's going to fail. :( Thanks, Bob.

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Snippet testing and doc updates
by Robert Cross 26 Jan '11

26 Jan '11

Two questions: 1. Is there a way to run a snippet against a system without having to reinstall it? Reason I'm asking is because I want to generate some of these to do various little tasks, (e.g. setup hosts, update up2date on RHEL4), but want an easy way to test them (like I said, without having to do an install each time). 2. If I spot areas where the documentation is less than 100%, what's the correct way to report this - should it go to the dev list? By the way, in closing, this is a great toolset - I can now provision my RHEL/Centos images with the same ease as I can AIX5L with Network Installation Manager (NIM), although Cobbler/Linux is a bit faster (just over 5 minutes for the RHEL4-32bit VM on VirtualBox I did yesterday). Cheers, Bob Cross.

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i accidently deleted a profile
by Joe Linoff 26 Jan '11

26 Jan '11

Hi Folks: I accidently deleted the wrong profile (typo). Is there any way to recover it? Thanks, Joe

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how do i restart a VM after aborting the boot
by Joe Linoff 22 Jan '11

22 Jan '11

Hi Folks: How do I reboot a VM after an abort? I started the VM using this command: dom0 # koan --virt --nogfx --system=cws12-01 There was a bad package specified in my kickstart template so I aborted the boot and fixed the kickstart. I then tried to restart using: dom0 # koan --virt --nogfx --system=cws12-01 but it failed with this message: - looking for Cobbler at http://10.45.2.1/cobbler_api - reading URL: http://10.45.2.1/cblr/svc/op/ks/system/cws12-01 install_tree: http://10.45.2.1/cblr/links/centos-5.5-xen-x86_64 libvirtd (pid 4962) is running... downloading initrd initrd.img to /var/lib/xen/initrd.img url=http://10.45.2.1/cobbler/images/centos-5.5-xen-x86_64/initrd.img - reading URL: http://10.45.2.1/cobbler/images/centos-5.5-xen-x86_64/initrd.img downloading kernel vmlinuz to /var/lib/xen/vmlinuz url=http://10.45.2.1/cobbler/images/centos-5.5-xen-x86_64/vmlinuz - reading URL: http://10.45.2.1/cobbler/images/centos-5.5-xen-x86_64/vmlinuz Sat, 22 Jan 2011 16:38:25 DEBUG No conn passed to Guest, opening URI 'None' exceptions.ValueError Guest name 'cws12-01' is already in use. File "/usr/lib/python2.4/site-packages/koan/app.py", line 225, in main k.run() File "/usr/lib/python2.4/site-packages/koan/app.py", line 356, in run self.virt() File "/usr/lib/python2.4/site-packages/koan/app.py", line 675, in virt return self.net_install(after_download) File "/usr/lib/python2.4/site-packages/koan/app.py", line 594, in net_install after_download(self, profile_data) File "/usr/lib/python2.4/site-packages/koan/app.py", line 673, in after_download self.virt_net_install(profile_data) File "/usr/lib/python2.4/site-packages/koan/app.py", line 1157, in virt_net_install qemu_driver_type = self.qemu_disk_type File "/usr/lib/python2.4/site-packages/koan/xencreate.py", line 113, in start_install guest.set_name(name) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 133, in set_name raise ValueError(_("Guest name '%s' is already in use.") % val) I also tried: dom0 # koan --virt --nogfx --system=cws12-01 but that didn't work. What do I need to do to successfully reboot? Any hints would be greatly appreciated. Thanks, Joe

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cobbler January 2011