Linux installation discs or minidisks
Hello list ... Since you have more experience would like to see ... by installing Linux - because we want to make it Read Only disks, such as the filesystem that are not modified and the Read Write to the modification ... Read Only minidisks we create and are accessed by other machines and only cloned disks that are Read write. Therefore consulted if this is possible or if you know where there is some information of partitioning disks for installing Linux. Thank you very much. Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux installation discs or minidisks
Hugo -- Check out: http://www.redbooks.ibm.com/abstracts/redp4322.html?Open This talks about sharing filesystems (read only root) and should provide you some valuable help and ideas.. Scott On Wed, Jan 28, 2009 at 5:12 PM, Hugo Luis Vitelli vitel...@ar.ibm.comwrote: Hello list ... Since you have more experience would like to see ... by installing Linux - because we want to make it Read Only disks, such as the filesystem that are not modified and the Read Write to the modification ... Read Only minidisks we create and are accessed by other machines and only cloned disks that are Read write. Therefore consulted if this is possible or if you know where there is some information of partitioning disks for installing Linux. Thank you very much. Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu 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 lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux installation discs or minidisks
Thank you very much Scott was very helpful information that you sent me. Greetings Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 From: Scott Rohling scott.rohl...@gmail.com To: LINUX-390@VM.MARIST.EDU Date: 01/28/2009 10:28 PM Subject: Re: Linux installation discs or minidisks Sent by: Linux on 390 Port LINUX-390@VM.MARIST.EDU Hugo -- Check out: http://www.redbooks.ibm.com/abstracts/redp4322.html?Open This talks about sharing filesystems (read only root) and should provide you some valuable help and ideas.. Scott On Wed, Jan 28, 2009 at 5:12 PM, Hugo Luis Vitelli vitel...@ar.ibm.comwrote: Hello list ... Since you have more experience would like to see ... by installing Linux - because we want to make it Read Only disks, such as the filesystem that are not modified and the Read Write to the modification ... Read Only minidisks we create and are accessed by other machines and only cloned disks that are Read write. Therefore consulted if this is possible or if you know where there is some information of partitioning disks for installing Linux. Thank you very much. Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu 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 lists...@vm.marist.edu 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 lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux installation discs or minidisks
It's really no where near as complicated as expressed in the RedPaper if you can simply intercept the usual 'rootfsck' and replace it. Then commit to having a set of service disks which can be flipped into R/W mode. (Then apply service, whether RH or SuSE.) The RedPaper goes into excruciating detail because the audience is completely unknown. We had to assume that every step had to be walked through, and the distributors don't specifically support this idea (yet). But if you understand how a POSIX system should be laid out, and in particular if you have some of your own intentions about filesystems, it's really an easy thing to do. We run read-only root in production at my day job. I personally run read-only root (with shared virtual disks) on Xen at home. -- R; On Wed, Jan 28, 2009 at 7:12 PM, Hugo Luis Vitelli vitel...@ar.ibm.com wrote: Hello list ... Since you have more experience would like to see ... by installing Linux - because we want to make it Read Only disks, such as the filesystem that are not modified and the Read Write to the modification ... Read Only minidisks we create and are accessed by other machines and only cloned disks that are Read write. Therefore consulted if this is possible or if you know where there is some information of partitioning disks for installing Linux. Thank you very much. Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu 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 lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux installation discs or minidisks
No problem - the real credit goes to Steve, Rick and Mike who authored the redbook.. I got a chance to review some of it early and it's good stuff. Scott On Wed, Jan 28, 2009 at 6:36 PM, Hugo Luis Vitelli vitel...@ar.ibm.comwrote: Thank you very much Scott was very helpful information that you sent me. Greetings Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 From: Scott Rohling scott.rohl...@gmail.com To: LINUX-390@VM.MARIST.EDU Date: 01/28/2009 10:28 PM Subject: Re: Linux installation discs or minidisks Sent by: Linux on 390 Port LINUX-390@VM.MARIST.EDU Hugo -- Check out: http://www.redbooks.ibm.com/abstracts/redp4322.html?Open This talks about sharing filesystems (read only root) and should provide you some valuable help and ideas.. Scott On Wed, Jan 28, 2009 at 5:12 PM, Hugo Luis Vitelli vitel...@ar.ibm.comwrote: Hello list ... Since you have more experience would like to see ... by installing Linux - because we want to make it Read Only disks, such as the filesystem that are not modified and the Read Write to the modification ... Read Only minidisks we create and are accessed by other machines and only cloned disks that are Read write. Therefore consulted if this is possible or if you know where there is some information of partitioning disks for installing Linux. Thank you very much. Hugo Luis Vitelli Mainframe Server Management System Support - Solutions Delivery IBM Global Services SSA Hipolito Yrigoyen 2149 ? CP (B1640HFQ) Modulo ?A? - Martinez ? Pcia Bs. As. - Argentina Mail.: vitel...@ar.ibm.com Phone.: 54 11 4898-4898 int. 3485 Fax 54 11 4898-4700 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu 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 lists...@vm.marist.edu 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 lists...@vm.marist.edu 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 lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux installation discs or minidisks
On 1/28/2009 at 9:04 PM, Richard Troth vmcow...@gmail.com wrote: -snip- We had to assume that every step had to be walked through, and the distributors don't specifically support this idea (yet). Yes and no. While it's not an officially supported configuration, the release notes for SLES10 document how to do it on Intel/AMD. (Not sure why it isn't part of the System z release notes.) Read-Only Root Filesystem It is possible to run SUSE Linux Enterprise Server 10 from Service Pack 2 on on a read-only root filesystem. Due to the huge number of possible configurations, this is currently not a supported scenario. The /tmp and /var/tmp directories needs to be on a seperate partition and cannot be mounted read-only. After the installation has finished and all services are configured, login as root and do the following modifications: Modify /etc/fstab and add ro to the mount options of the root filesystem entry. rm /etc/mtab ln -s /proc/mounts /etc/mtab mkdir /var/lib/hwclock mv /etc/adjtime /var/lib/hwclock ln -s /var/lib/hwclock/adjtime /etc/adjtime # the following two steps are only necessary if you use dhcp: mv /etc/resolv.conf /var/lib/misc/ ln -s /var/lib/misc/resolv.conf /etc/resolv.conf # Now mount root filesystem read-only and reboot mount -o remount,ro / reboot Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
