Re: Single user mode and root password
Rob, Yes, by replacing the /sbin/sulogin by a script that just calls /bin/bash, you prevent the password check for both the fsck and single user modes. Ronald van der Laan -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: IOCDS for Redhat
Thanks for the plug. Some of the rest of us might get some mileage from it. Harold Grovesteen Mark Post wrote: Or, plug you could go to http://download.novell.com/Download?buildid=HfBRh4TspiE~ for a no-cost 180-day trial of SLES10 SP1./plug :) Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Live Virtual Class, Aug 14 - Virtualization Basics (10am NY time)
Pam, I went to http://www.vm.ibm.com/events/ to look at this class after the event. Is this the correct URL for that? Clicking on the event still asks for registration. Do I still need to go through that to look at the presentation post-event. Thanks, Kevin Evans -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Pamela Christina in warm sunny Endicott NY Sent: Wednesday, August 08, 2007 4:25 PM To: LINUX-390@VM.MARIST.EDU Subject: Live Virtual Class, Aug 14 - Virtualization Basics (10am NY time) Here's info about the next in the series of Live Virtual Classes (webcasts). The price is right (no charge, no travel). If you can't get to SHARE or System z Expo, why not try and LVC. Or even if you can get to the events, listen in to the call, and then you'll free up a time slot on your conference agenda for something else. Title: Virtualization Basics Abstract: The latest buzz word in the industry seems to be virtualization. As we have learned over the years, one needs to be careful with buzzwords. This presentation will not cover all the possible definitions for virtualization. It will give you a strong understanding of what virtualization means in the context of the z/VM hypervisor, and this can be used to contrast with what others are calling virtualization. Key topics covered in this presentation include: the virtual machine model, the key components of z/VM, the role of the SIE instruction, and the virtualization and management of various resources (processor, memory, and I/O). Audience: Customers, IBMers, ISVs and Business Partners This 90-minute LVC will be conducted on Tuesday, August 14 starting at 10:00 Eastern U.S./4:00 p.m. CET and recorded for subsequent replay. The replay will be available 1 week after the live session via a link on the z/VM website (http://www.vm.ibm.com/) Important: Enroll for this session by EOD Monday, August 13 with this URL: https://asp22.centra.com:443/Reg/main/00013c73780113c2f41183002cd1/e n_US There is no tuition to participate in this session, however you must enroll at least 1 business day ahead of the session date to enable your participation. The LVC will be delivered using the Centra tool that employs Voice over IP (VoIP) technology to provide both the audio as well as the visuals to your Windows workstation. Each participant must enroll individually, ie. no sharing of LVC logins is supported. After enrolling in the LVC, you should run a a System Check via the following URL to verify your workstation meets the following minimum requirements. System Check: https://stg.centra.com/SysCheck/main/Customers/ibmstg Windows 2000 or Windows XP Internet Explorer 5.01, Netscape 7.2, Firefox 1.0 or later. 28.8 kbps or faster Internet connection P350+ MHz, 128+ MB memory 800x600 16-bit color display or better sound card and speakers (to hear the audio portion of the LVC) microphone (required if you want to ask a question during the LVC) For LVC info and comments about them, contact Dick Kendrick +1.469.718.0048 or [EMAIL PROTECTED] If you want to access the replays, or see what else is on the events calendar for z/VM and more... http://www.vm.ibm.com/events/ Regards, Pam C Dame Pamela the Publicist -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: GDPS/XRC
.snip We are in the planning stages of implementing GDPS/XRC. We have z/OS, z/VM, and Linux on zSeries (running as guests on z/VM). z/VM is at 5.3 installed on CKD. Linux is SLES9 SP3 installed on CKD and SCSI. CKD for / (root) and SCSI for user data. The SCSI is via EDEV. From what I've read it appears that Linux for zSeries is supported by XRC (on CKD - which means I'll need to convert off SCSI), but I can't quite determine if z/VM is supported. I've searched the LISTSERV archives and found where folks have been discussing this very issue...but I'm still unsure about z/VM. If z/VM isn't supported, must the Linux volumes be dedicated to the guest? ..snip Susan, Z/VM volumes are currently supported by XRC (take care of the upgrade level of your Z/os system). As per the absence of a valid timestamp in some z/VM (and Linux too) IOs, XRC will issue warning messages... but all goes ok... As a suggestion, keep z/VM and Linux volumes in a separate SDM, to avoid problems on consistency groups, due to null timestamps Hope this helps. regards. _ Paolo Cacciari Business Continuity and Resiliency Services, IBM Global Services - South Region, EMEA Via Darwin 85, 20019 Settimo Milanese(MI) – Italy - MISET001 The goal is to be prepared for a disaster not to continually plan for a successful test * [EMAIL PROTECTED] ( + 39 051 41.36799 Mobile: + 39 335 6287584 7 + 39 02 596.23288 Fax BO: + 39 051 406052
Re: Single user mode and root password
Mark, I would say that's a doc APAR in the making. Mike? We'll definitely look into it. Mike MacIsaac [EMAIL PROTECTED] (845) 433-7061 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Missing OSA/2 Interfaces
I could have sworn that during the Redbook residency that we used some facility on the HMC to write screen contents into a file that we could subsequently transfer off to a PC. Mike? Yes, we had an OS/2 app, PMCAMERA I believe. Now that the HMC is Linux-based, there is no way (to my knowledge) to run other apps. However, since it is remotely available on the network, I access it from my desktop to get screen shots. Mike MacIsaac [EMAIL PROTECTED] (845) 433-7061 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
Here is what I've used on SLES 10: cat /sbin/sulogin #!/bin/bash #Always log in without asking for a password HOME=/root exec -l /bin/bash --login --noprofile On 8/22/07, Ronald van der Laan [EMAIL PROTECTED] wrote: Rob, Yes, by replacing the /sbin/sulogin by a script that just calls /bin/bash, you prevent the password check for both the fsck and single user modes. Ronald van der Laan -- Bruce Hayden Linux on System z Advanced Technical Support Endicott, NY -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
Thank you for all the information and suggestions. Very much appreciated, Betsie -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Bruce Hayden Sent: Wednesday, August 22, 2007 6:11 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Single user mode and root password Here is what I've used on SLES 10: cat /sbin/sulogin #!/bin/bash #Always log in without asking for a password HOME=/root exec -l /bin/bash --login --noprofile On 8/22/07, Ronald van der Laan [EMAIL PROTECTED] wrote: Rob, Yes, by replacing the /sbin/sulogin by a script that just calls /bin/bash, you prevent the password check for both the fsck and single user modes. Ronald van der Laan -- Bruce Hayden Linux on System z Advanced Technical Support Endicott, NY -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
On Wed, Aug 22, 2007 at 9:11 AM, in message [EMAIL PROTECTED], Bruce Hayden [EMAIL PROTECTED] wrote: Here is what I've used on SLES 10: cat /sbin/sulogin #!/bin/bash Oooh, I can't agree with that. Replacing a system module that might get called from multiple places isn't a good idea. Updating /etc/inittab to invoke bash would be much better (and is what I do with Slack/390). Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Counties running Linux on a z-Series/System z?
Afternoon, We are looking at bringing in a z9 BC to replace our existing 9672, with the possibility of also running Linux on the z9. However, my CIO is concerned with the types of applications, number of IFLs required, other county governments doing this, etc., that can be run on the z9. Are there any county governments running Linux on a z-Series or z9? If so, would you be kind enough to share the types of applications, number of IFL's, data bases, or any other information that might be of interest to my CIO. TIA, Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Hi Dave, at the SHARE User Event last week in San Diego I attended session 9231 Building a strong z/VM and Linux on the mainframe architecture was given. There the Linux on the mainframe at Centre des services partages Quebec was shown. I found a softcopy of the presentation here: http://blog.coleo.com/wp-content/uploads/2007/05/share_session_9231.pdf Hope it includes what you are looking for. Regards Mario Mario Held Linux Performance - Linux on System z IBM Boeblingen Lab, Germany -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
The point is that sulogin *is* called from multiple places, so if you're going to get rid of the root password (Rob's point) you either get to modify all the places that invoke sulogin (I find 3 scripts in /etc/init.d, plus /etc/inittab, and there could be more) or you modify /sbin/sulogin. In either case, you have local mods to maintain, which has its drawbacks, of course.. On 8/22/07, Mark Post [EMAIL PROTECTED] wrote: Oooh, I can't agree with that. Replacing a system module that might get called from multiple places isn't a good idea. Updating /etc/inittab to invoke bash would be much better (and is what I do with Slack/390). Mark Post -- Bruce Hayden Linux on System z Advanced Technical Support Endicott, NY -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Missing OSA/2 Interfaces
Mark, Which Redbook? I am probably not familiar enough with the HMC's capabilities. Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Mark Post [EMAIL PROTECTED] 8/21/2007 1:00 PM On Tue, Aug 21, 2007 at 2:07 PM, in message [EMAIL PROTECTED], David Stuart [EMAIL PROTECTED] wrote: -snip- However, as soon as the HMC comes back up, I'll run your commands, and send on the output. Hmm, I don't think the HMC has 'Cut Paste'... I could have sworn that during the Redbook residency that we used some facility on the HMC to write screen contents into a file that we could subsequently transfer off to a PC. Mike? Anyone? Am I right, or is my memory failing? Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
Bruce Hayden wrote: The point is that sulogin *is* called from multiple places, so if you're going to get rid of the root password (Rob's point) you either get to modify all the places that invoke sulogin (I find 3 scripts in /etc/init.d, plus /etc/inittab, and there could be more) or you modify /sbin/sulogin. In either case, you have local mods to maintain, which has its drawbacks, of course.. It's your foot, you can shoot it any way you want; I'd rather keep the need for root around. I'd also think about what each of those use root password for and leave the original sulogin code in place (even if just renamed) just in case it's needed in the future. Better yet, I'd update /etc/inittab and other places with the code I'd want instead (like /sbin/nosulogin), so that any maintenance wasn't messed with in the future, and updates didn't just step on the new code. I don't just blindly remove security functions just because it gets in the way. Ive even set up ssh keys with non-null passphrases as well as ssh-agent, to verify it's me and not someone who scarfed up my key without my knowledge. Kim On 8/22/07, Mark Post [EMAIL PROTECTED] wrote: Oooh, I can't agree with that. Replacing a system module that might get called from multiple places isn't a good idea. Updating /etc/inittab to invoke bash would be much better (and is what I do with Slack/390). Mark Post -- Bruce Hayden Linux on System z Advanced Technical Support Endicott, NY --- Kim Goldenberg Systems Programmer I State of NJ - OIT 609-777-3722 [EMAIL PROTECTED] [EMAIL PROTECTED] -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Counties running Linux on a z-Series/System z?
Thanks Mario, I'll take a look at the presentation. Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Mario Held [EMAIL PROTECTED] 8/22/2007 10:07 AM Afternoon, We are looking at bringing in a z9 BC to replace our existing 9672, with the possibility of also running Linux on the z9. However, my CIO is concerned with the types of applications, number of IFLs required, other county governments doing this, etc., that can be run on the z9. Are there any county governments running Linux on a z-Series or z9? If so, would you be kind enough to share the types of applications, number of IFL's, data bases, or any other information that might be of interest to my CIO. TIA, Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Hi Dave, at the SHARE User Event last week in San Diego I attended session 9231 Building a strong z/VM and Linux on the mainframe architecture was given. There the Linux on the mainframe at Centre des services partages Quebec was shown. I found a softcopy of the presentation here: http://blog.coleo.com/wp-content/uploads/2007/05/share_session_9231.pdf Hope it includes what you are looking for. Regards Mario Mario Held Linux Performance - Linux on System z IBM Boeblingen Lab, Germany -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Counties running Linux on a z-Series/System z?
Hi - I'm one of the authors of said presentation, and have presented it in one format or another a bunch of times. Let me know if you have any questions or need any additional information. Glad to elaborate. David -Original Message- From: Linux on 390 Port on behalf of David Stuart Sent: Wed 8/22/2007 3:52 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Counties running Linux on a z-Series/System z? Thanks Mario, I'll take a look at the presentation. Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Mario Held [EMAIL PROTECTED] 8/22/2007 10:07 AM Afternoon, We are looking at bringing in a z9 BC to replace our existing 9672, with the possibility of also running Linux on the z9. However, my CIO is concerned with the types of applications, number of IFLs required, other county governments doing this, etc., that can be run on the z9. Are there any county governments running Linux on a z-Series or z9? If so, would you be kind enough to share the types of applications, number of IFL's, data bases, or any other information that might be of interest to my CIO. TIA, Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Hi Dave, at the SHARE User Event last week in San Diego I attended session 9231 Building a strong z/VM and Linux on the mainframe architecture was given. There the Linux on the mainframe at Centre des services partages Quebec was shown. I found a softcopy of the presentation here: http://blog.coleo.com/wp-content/uploads/2007/05/share_session_9231.pdf Hope it includes what you are looking for. Regards Mario Mario Held Linux Performance - Linux on System z IBM Boeblingen Lab, Germany -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
On 8/22/07, Kim Goldenberg [EMAIL PROTECTED] wrote: I don't just blindly remove security functions just because it gets in the way. Ive even set up ssh keys with non-null passphrases as well as ssh-agent, to verify it's me and not someone who scarfed up my key without my knowledge. :soapbox. This is not a matter of getting in the way. What does get in the way is a root password that is known by some people and can be used beyond their original need to know. If you have 100 Linux virtual machines used by various people, it just does not work well to invent 100 good passwords every month to give each team the proper access. Acceptance by others gets very low when they cannot have a root password, but you can... and they will come up with a manager to approve that they put the root password in some silly automated ftp that copies data from one system to the other... Not having a root password is the best way to get out of that. We've used this and it really works. We did have a server virtual machine play SCIF (with logging and auditing and access control) for when no ssh login was possible, or for automation things. The good thing about cryptic keys is that you separate authentication and access control, which we believe is a good thing to do. It provides granularity and ease of use. When you already have your workstation protected well enough, ssh-agent makes it very easy indeed (and secure because people don't see you type in a password). Even if you have to type your passphrase each time, that's probably more secure against people reading it over your shoulder (because it's the same for all systems and you can probably type it very fast). Way better than having to look up the root password for server #86 when someone is watching you... And non-encrypted private keys (null passphrase) are evil. Except for cold bodies (i.e. not warm bodies, so machines or automated processes. And obviously you make sure that such a key only gives access to what that process must do.. The authorized_keys file for root on that server gives full access control. And it does auditing too. You can also use this for db2inst1 or whatever functional accounts you have. And it does not have to be the same list of users who have access. If you want to go fancy, you move the authorized_keys into LDAP and get the ability to build groups and update access without messing with individual systems. PS I believe we were eventually forced to have a root password because corporate standards dictate that you change it every nn days, and if you don't have one you cannot check that it expires every nn days :-( So I think we eventually set random passwords that nobody knew. Rob -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Forced Disk Check During Boot
David Stuart wrote: Thanks Alan and Mark, I think I'll leave things as they are for now. But now I know they're considered normal. Thanks, Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 [EMAIL PROTECTED] Mark Post [EMAIL PROTECTED] 8/20/2007 4:34 PM On Mon, Aug 20, 2007 at 7:26 PM, in message [EMAIL PROTECTED], David Stuart [EMAIL PROTECTED] wrote: -snip- During a reboot this afternoon, I received a message stating that it had been 143 days since /dev/dasd?1 had been checked. Check forced. -snip- Is this normal? I don't remember ever seeing this before, even when it had been several months since the prior reboot. Yes, the EXT2 and EXT3 file systems (and probably all file systems) do this. If you're using EXT3, you can do a: tune2fs -c0 -i0 /dev/dasd?? to turn that off. There are two switches you need to specify because there are two counts that are kept: 1. Number of days since the last file system check 2. Number of file system mounts since the last file system check I would _not_ recommend doing this on an EXT2 file system, unless you always have it mounted read-only. These days I wouldn't recommend using ext2. Some recommend turning it off to avoid unexpectedly long boot times: I have reconfigured the system and now reboot just to be sure it's okay. And then it takes eons to come up and my downtime balloons There is the complementary recommendation to schedule time to run the fsck. Depending on the filesystem, the system might not need to be down for the check. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
Mark Post wrote: On Tue, Aug 21, 2007 at 5:08 PM, in message [EMAIL PROTECTED], R P Herrold [EMAIL PROTECTED] wrote: On Tue, 21 Aug 2007, Mark Post wrote: Master Resource Control: runlevel S has been reached Give root password for login: Looks the same to me. Same results for telinit 1 as well. possibly a bootloader password. that is not the customary login password prompt challenge. No, that wasn't a prompt for a boot loader password. No such thing exists on mainframe Linux. (Or if it does, and no one told me, I certainly haven't turned it on.) That was from the 3215 console after issuing the telinit command. It comes from /sbin/sulogin, which is what is invoked via /etc/inittab in single user mode: # what to do in single-user mode ls:S:wait:/etc/init.d/rc S ~~:S:respawn:/sbin/sulogin One can (subject to security policies) change that to invoke bash. unless one has really good security (better than I've seen), that's a fairly pointless effort at securing the system. If your disk is encrypted, you win, unless the stakes are high enough to make it worth trying to get your keys. If I can mount your disk I win. If I can boot from my media, I win. If I can type stuff at the bootloader (assuming it exists) and it's not protected with a password, I win with init=/bin/bash -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Live Virtual Class, Aug 14 - Virtualization Basics (10am NY time)
Pamela Christina from hot humid Endicott NY wrote: ...ooops..forgot to say this in the first posting. Dr. Brian Wade will be presenting Virtualization Basics on the Aug 14. Live Virtual Class. In future, could people recognise that not everyone understands US times, and translate times to GMT (UTC). Probably we can all translate GMT to our local times. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
Adam Thornton wrote: On Aug 8, 2007, at 2:15 AM, Rob van der Heij wrote: On 8/8/07, Rod [EMAIL PROTECTED] wrote: Cough cough - I have no problems running Debian 4 on my PPC iBook - cough cough. Got a cold mate? I want to do virt and afaik VMware does not do Debian... That's, er, news to me. What makes you say that? On PowerPC? -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
Tom Duerbusch wrote: It seems like Dell had a Linux Preload offer for a few months. I took it that Microsoft had a talk with them and the Linux preloads were taken off the market. It seems to me that was 2 years ago. I wonder what changed to allow Lenovo to consider doing this? I think Dell's doing it now. HP's been offering Ubuntu for a while. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
David Heilman wrote: I have had SuSE Linux running on T60's and T40's for the past 3 years. The R series had problems but the T series seems to run great. I am about to try SuSE on a Gateway Notepad to see how well that works. I'm running OpenSUSE 10.2 on a R40. Had to add madwifi for the wireless. The infernal modem works (sort of) to my great surprise. I think power management does not work, but I've not actually tried to do anything to it. Screen runs at 1440x1050 or so. Very nice. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
Rob van der Heij wrote:
On 8/6/07, Alan Cox [EMAIL PROTECTED] wrote:
Today there are very few laptops on the market, the rest is
configuration and packaging. Its Intel mobile + MICH + intel video +
intel wireless (aka Centrino), Intel mobile + MICH + intel video + other
wireless, AMD + ATI + broadcom and a few other combinations.
While my Shuttle SD11G5 does not sit in my lap, it uses the same gear:
Intel 915GM + ICH6M, Intel GMA900, Broadcom Gigabit (and probably more
quiet than my T43)
I had lots of trouble getting a Linux distribution installed that did
both audio and video. Most annoying problem was that GUI-based install
failed halfway (expect because video memory was used as page cache
too). I am now fairly happy with Centos 5 (though I cannot get
dual-head to work as I can with Windows on my T43).
Contrary to Alan, my experience with Intel video is mostly bad. A Dell
Optiplex GX270 I gave up on, video was unacceptable with Fedora Core 6,
SLE{S,D} 10 beta and RHEL5 beta.
Same/similar graphics is working with Scientific Linux 5 (RHEL-clone) pm
an IBM ThinkCentre, but there's a big pause when switching between
virtual consoles.
--
Cheers
John
-- spambait
[EMAIL PROTECTED] [EMAIL PROTECTED]
Please do not reply off-list
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Re: Linux Laptops
On Aug 22, 2007, at 4:10 AM, John Summerfield wrote: Adam Thornton wrote: On Aug 8, 2007, at 2:15 AM, Rob van der Heij wrote: On 8/8/07, Rod [EMAIL PROTECTED] wrote: Cough cough - I have no problems running Debian 4 on my PPC iBook - cough cough. Got a cold mate? I want to do virt and afaik VMware does not do Debian... That's, er, news to me. What makes you say that? On PowerPC? Sure. If you run Bochs. Adam -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
On Wed, Aug 22, 2007 at 6:32 PM, in message [EMAIL PROTECTED], Rob van der Heij [EMAIL PROTECTED] wrote: -sip- This is not a matter of getting in the way. What does get in the way is a root password that is known by some people and can be used beyond their original need to know. If you let that happen. My prior management did not, unless there was a contractual requirement, in which case all SLAs were null for those particular systems. In all other cases, sudo was sufficient. It's mostly a matter of knowledgeable management who also have some, umm, guts. Mine was, and did. -snip- And non-encrypted private keys (null passphrase) are evil. Careful. Gabe didn't say he did that. He said he had non-null passphrases. My personal opinion is that any Linux system protected by a z/VM userid/password doesn't _need_ to have a login prompt on the virtual console. Having bash running is just fine. Even so, in absolute terms, that _is_ less secure than having both. Just not meaningfully so, IMO. And just because you have a root password doesn't mean you can't use key pairs as well (as you yourself said you did). Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Missing OSA/2 Interfaces
On Wed, Aug 22, 2007 at 1:51 PM, in message [EMAIL PROTECTED], David Stuart [EMAIL PROTECTED] wrote: Mark, Which Redbook? I am probably not familiar enough with the HMC's capabilities. Dave, The Linux for zSeries and S/390: Distributions book. It didn't talk about getting things from the HMC, it was just a tool we used to get stuff from the console into the book. Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Single user mode and root password
On Wed, Aug 22, 2007 at 1:19 PM, in message [EMAIL PROTECTED], Bruce Hayden [EMAIL PROTECTED] wrote: The point is that sulogin *is* called from multiple places, so if you're going to get rid of the root password (Rob's point) you either get to modify all the places that invoke sulogin (I find 3 scripts in /etc/init.d, plus /etc/inittab, and there could be more) or you modify /sbin/sulogin. In either case, you have local mods to maintain, which has its drawbacks, of course.. If you did it with RPM, then that would be a different matter. I don't think that's what you meant, though. Doing it without RPM is just a Bad Idea. Sort of like putting on superzaps outside of SMP/E, etc. Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Forced Disk Check During Boot
On Wed, Aug 22, 2007 at 4:47 AM, in message [EMAIL PROTECTED], John Summerfield [EMAIL PROTECTED] wrote: -snip- I would _not_ recommend doing this on an EXT2 file system, unless you always have it mounted read-only. These days I wouldn't recommend using ext2. I would, but only in the context I framed it in. Read-only disks, shared between z/VM guests (or I guess you could do it in LPARs. Aiee!) If you try to use ext3 in those situations, bad things happen. Most often, ugly error messages in the system log when a system tries to write to the journal, or replay it, etc. Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
On Wed, Aug 22, 2007 at 9:59 PM, in message [EMAIL PROTECTED], Adam Thornton [EMAIL PROTECTED] wrote: -snip- Virtual PC, however, *does*, and it's not terrible (although it's pretty crash-prone), Ok, explain to me how something that is pretty crash-prone is _not_ terrible? Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Live Virtual Class, Aug 14 - Virtualization Basics (10am NY time)
On Wed, Aug 22, 2007 at 5:18 AM, in message [EMAIL PROTECTED], John Summerfield [EMAIL PROTECTED] wrote: Pamela Christina from hot humid Endicott NY wrote: ...ooops..forgot to say this in the first posting. Dr. Brian Wade will be presenting Virtualization Basics on the Aug 14. Live Virtual Class. In future, could people recognise that not everyone understands US times, and translate times to GMT (UTC). Probably we can all translate GMT to our local times. What, you don't have one of those handy dandy timezone changers on your desktop toolbar? Heck, even Windows has that. I use mine all the time to figure out what the time is in other parts of the world. Or you could use the world clock, or Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux Laptops
On Aug 22, 2007, at 11:47 PM, Mark Post wrote: On Wed, Aug 22, 2007 at 9:59 PM, in message [EMAIL PROTECTED], Adam Thornton [EMAIL PROTECTED] wrote: -snip- Virtual PC, however, *does*, and it's not terrible (although it's pretty crash-prone), Ok, explain to me how something that is pretty crash-prone is _not_ terrible? Well, in the context of all the things Microsoft has blessed us with over the decades, it's better than most. It was an acceptable way to run Visio. And, um, the DD character generator that came with the 3E _Player's Handbook_. Adam -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
