Re: [CentOS] Minimum RAM for CentOS7
Am 07.09.2014 um 20:56 schrieb Oliver Schad cen...@automatic-server.com: On Sun, 07 Sep 2014 11:48:36 -0700 John R Pierce pie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. What matters is to think about ressources, even in a linux distro with long term support and enterprise features. Enterprise doesn't mean waste your money. And really, to double the memory to install a machine - are you kidding me? They've never thought about it and I really hate this attitude. i would suggest to install it offsite e.g. yum provides a installroot option. -- LF ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 09/07/2014 09:44 PM, Oliver Schad wrote: If you have 1.000 or 10.000 machines it*is* a reason to think about every fucking dollar per machine you can save each month. You could *just* *install* with 1GB and then get down to 512 at runtime. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, Sep 07, 2014 at 09:36:07PM -0400, Mark LaPierre wrote: On another slant, why don't you consider increasing the RAM to 1G, making the install, then cloning the disk on the other 9.999 machines? I've typically run into the memory limit in VMs, where it is trivial to change the memory allocated to it on the fly, so I bump up the memory, then lower it after the install. -- Jonathan Billings billi...@negate.org ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Mon, Sep 8, 2014 at 3:38 AM, Mihamina Rakotomandimby mihamina.rakotomandi...@rktmb.org wrote: If you have 1.000 or 10.000 machines it*is* a reason to think about every fucking dollar per machine you can save each month. You could *just* *install* with 1GB and then get down to 512 at runtime. First, if you are running 10,000 machines with 512K RAM, you are doing something really, really weird or you just like managing a lot of machines that can't do very much each - and supplying a lot more power than you would need for fewer, more capable hosts. But, if you have even more than a few, you are probably already doing some sort of image installs. So just install on a machine or VM with 1GB, then use ReaR or Clonezilla to back it up and restore onto the target boxes. Or for brute force, use dd to copy the drive and swap them into place. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Mon, September 8, 2014 9:44 am, Les Mikesell wrote: On Mon, Sep 8, 2014 at 3:38 AM, Mihamina Rakotomandimby mihamina.rakotomandi...@rktmb.org wrote: If you have 1.000 or 10.000 machines it*is* a reason to think about every fucking dollar per machine you can save each month. You could *just* *install* with 1GB and then get down to 512 at runtime. First, if you are running 10,000 machines with 512K RAM, you are doing something really, really weird or you just like managing a lot of machines that can't do very much each - and supplying a lot more power than you would need for fewer, more capable hosts. But, if you have even more than a few, you are probably already doing some sort of image installs. So just install on a machine or VM with 1GB, then use ReaR or Clonezilla to back it up and restore onto the target boxes. Or for brute force, use dd to copy the drive and swap them into place. ... which will be a lot of drive swapping for 1000 or 1 machines. With this number of machines the only workable option I can think of is netboot + kickstart (with hard drive then network boot order in BIOS so no need to change anything after system is installed)... But it is true what was mentioned 1000+ weak machines are unlikely to be able to pay their electric bills. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Mon, 8 Sep 2014, Valeri Galtsev wrote: On Mon, September 8, 2014 9:44 am, Les Mikesell wrote: But, if you have even more than a few, you are probably already doing some sort of image installs. So just install on a machine or VM with 1GB, then use ReaR or Clonezilla to back it up and restore onto the target boxes. Or for brute force, use dd to copy the drive and swap them into place. ... which will be a lot of drive swapping for 1000 or 1 machines. With Hence the term, brute force. this number of machines the only workable option I can think of is netboot + kickstart (with hard drive then network boot order in BIOS so no need to change anything after system is installed)... But it is true what was mentioned 1000+ weak machines are unlikely to be able to pay their electric bills. -- Michael henne...@web.cs.ndsu.nodak.edu SCSI is NOT magic. There are *fundamental technical reasons* why it is necessary to sacrifice a young goat to your SCSI chain now and then. -- John Woods ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Mon, Sep 8, 2014 at 11:36 AM, Valeri Galtsev galt...@kicp.uchicago.edu wrote: On Mon, September 8, 2014 9:44 am, Les Mikesell wrote: On Mon, Sep 8, 2014 at 3:38 AM, Mihamina Rakotomandimby mihamina.rakotomandi...@rktmb.org wrote: If you have 1.000 or 10.000 machines it*is* a reason to think about every fucking dollar per machine you can save each month. You could *just* *install* with 1GB and then get down to 512 at runtime. First, if you are running 10,000 machines with 512K RAM, you are doing something really, really weird or you just like managing a lot of machines that can't do very much each - and supplying a lot more power than you would need for fewer, more capable hosts. But, if you have even more than a few, you are probably already doing some sort of image installs. So just install on a machine or VM with 1GB, then use ReaR or Clonezilla to back it up and restore onto the target boxes. Or for brute force, use dd to copy the drive and swap them into place. ... which will be a lot of drive swapping for 1000 or 1 machines. With this number of machines the only workable option I can think of is netboot + kickstart (with hard drive then network boot order in BIOS so no need to change anything after system is installed)... But it is true what was mentioned 1000+ weak machines are unlikely to be able to pay their electric bills. Drive swapping is pretty easy on servers with hotswap bays. If you can rack the machines you would be able to swap the drives. But, Clonezilla with the DRBL server has a multicast option that will install the same image on a bunch of machines at once - and it is fairly agnostic about the OS it is loading so it is useful in a heterogeneous environment. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 09/07/2014 07:44 PM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM, only the installer is br0ken. Is it a java installer? *g* you can either do an image install, or install the media on a different device and move it over. if you have thousands of machines, you likely have some level of automation around this already -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Minimum RAM for CentOS7
Just FYI: I had several problems to install CentOS 7 with 512 MB RAM. No log showed me that problem (I would expect a system check before). With 1 GB RAM everything runs fine. Don't know, what they do with more than 512 MB RAM on a text only system during installation ... Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 2014-09-07, Oliver Schad cen...@automatic-server.com wrote: With 1 GB RAM everything runs fine. Don't know, what they do with more than 512 MB RAM on a text only system during installation ... Could switch to a different console and bounce on top, if you're interested. 512MB seems really small these days, so I'm guessing you're using this as a small appliance box like a NAT router. Is there a reason you prefer CentOS over a distro targeted to your application? If it's a NAT router, for example, there are a bunch of slim-profile distros which are designed specifically for NAT routing on a small system. --keith -- kkel...@wombat.san-francisco.ca.us ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 07 Sep 2014 11:08:18 -0700 Keith Keller kkel...@wombat.san-francisco.ca.us wrote: On 2014-09-07, Oliver Schad cen...@automatic-server.com wrote: With 1 GB RAM everything runs fine. Don't know, what they do with more than 512 MB RAM on a text only system during installation ... Could switch to a different console and bounce on top, if you're interested. 512MB seems really small these days, so I'm guessing you're using this as a small appliance box like a NAT router. No, a basic box for common services like DHCP, DNS, SMTP, Nginx, ... doesn't need much RAM, so 512 MB is really enough. Is there a reason you prefer CentOS over a distro targeted to your application? I don't see a reason, why I should have a zoo of distros. A productive basic installation of CentOS 7 needs ~ 100 MB RAM. Why the installation needs more than 5 times that is really interesting question. Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 9/7/2014 11:31 AM, Oliver Schad wrote: No, a basic box for common services like DHCP, DNS, SMTP, Nginx, ... doesn't need much RAM, so 512 MB is really enough. a $50 beaglebone black has 512MB ram, and is best run with ucLinux and busybox. That is not the target market of RHEL7 and therefore CentOS 7. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 07 Sep 2014 11:38:36 -0700 John R Pierce pie...@hogranch.com wrote: On 9/7/2014 11:31 AM, Oliver Schad wrote: No, a basic box for common services like DHCP, DNS, SMTP, Nginx, ... doesn't need much RAM, so 512 MB is really enough. a $50 beaglebone black has 512MB ram, and is best run with ucLinux and busybox. That is not the target market of RHEL7 and therefore CentOS 7. If you have 1.000 or 10.000 machines it *is* a reason to think about every fucking dollar per machine you can save each month. And CentOS 7 runs perfectly with 512 MB RAM, only the installer is br0ken. Is it a java installer? *g* Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 09/07/2014 01:31 PM, Oliver Schad wrote: On Sun, 07 Sep 2014 11:08:18 -0700 Keith Keller kkel...@wombat.san-francisco.ca.us wrote: On 2014-09-07, Oliver Schad cen...@automatic-server.com wrote: With 1 GB RAM everything runs fine. Don't know, what they do with more than 512 MB RAM on a text only system during installation ... Could switch to a different console and bounce on top, if you're interested. 512MB seems really small these days, so I'm guessing you're using this as a small appliance box like a NAT router. No, a basic box for common services like DHCP, DNS, SMTP, Nginx, ... doesn't need much RAM, so 512 MB is really enough. Is there a reason you prefer CentOS over a distro targeted to your application? I don't see a reason, why I should have a zoo of distros. A productive basic installation of CentOS 7 needs ~ 100 MB RAM. Why the installation needs more than 5 times that is really interesting question. Best Regards Oli As soon as you throw in a web server and/or MySQL, you need more. The RAM is really defined by what the system is going to be doing. - -- - -- Steve -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQEcBAEBAgAGBQJUDKmqAAoJEDx7wfUw/4IOiHEIAMOQLruNhzvZBrlc11VGoZr3 oSMXct9ihuVngPsRlJcdBLxrgmRKVDJIah+qycvEzOrk4E7gNdVtqUVQ/TMLpgHk 0izYrZfIzbJ+ArvBxY53Hb0KJ+QGdr9wgT3FiolZ8li7uS4TflzxTgPmom4xmEn2 itV9AFCtFKjAK3zRNBenRUFLbMaqNQKYLSS9IHwwSq1eswHMleK4YdQzoT93NOBz cH1IRwjGHfLI7VBciHZiQ/YuIWOngS941uR4OrLc/RrnrP54+Xa4sPB3wFcKTUHP GcTUbR+K2DpFonAF6hO0pjc8YXK/v2Q0zRgn49gy6Ifo2Aq2uN2pTKWYVHdLnP8= =mSeA -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 07 Sep 2014 11:48:36 -0700 John R Pierce pie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. What matters is to think about ressources, even in a linux distro with long term support and enterprise features. Enterprise doesn't mean waste your money. And really, to double the memory to install a machine - are you kidding me? They've never thought about it and I really hate this attitude. Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, September 7, 2014 1:08 pm, Keith Keller wrote: On 2014-09-07, Oliver Schad cen...@automatic-server.com wrote: With 1 GB RAM everything runs fine. Don't know, what they do with more than 512 MB RAM on a text only system during installation ... Interestingly: I just looked up FreeBSD 64 bit (amd64 they call what Linux calls x86_64) installation requirements: you need at least 64 MB of RAM for installation ;-) Of course, you will need _much_ more just to run Xwindow system on that box... Somehow it comes to my mind what someone called M$ Windows somewhere around Windows XP: bloated pig ;-) Could switch to a different console and bounce on top, if you're interested. 512MB seems really small these days, so I'm guessing you're using this as a small appliance box like a NAT router. Is there a reason you prefer CentOS over a distro targeted to your application? If it's a NAT router, for example, there are a bunch of slim-profile distros which are designed specifically for NAT routing on a small system. --keith -- kkel...@wombat.san-francisco.ca.us ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 2014-09-07 2:56 pm, Oliver Schad wrote: On Sun, 07 Sep 2014 11:48:36 -0700 John R Pierce pie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. What matters is to think about ressources, even in a linux distro with long term support and enterprise features. Enterprise doesn't mean waste your money. And really, to double the memory to install a machine - are you kidding me? They've never thought about it and I really hate this attitude. Best Regards Oli Oli...perhaps instead of taking out your anger and frustration on the CentOS packagers, you might wish to vent at the Upstream...because, when all is said and done, CentOS is a repackaged RHEL. Whatever the requirements are for the upstream are the requirements for CentOS. Whatever the installer looks for in RHEL is going to be the same thing that the installer looks for in CentOS. I will leave you with this minor piece of wisdome, which I've seen repeated in this list many times: if you don't agree with the requirements or feel that there's a bug in the installer, you are more than welcome to file a bug report with the upstream. -- Mike Burger http://www.bubbanfriends.org It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore. --Colonel Jack O'Neill, SG1 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 07 Sep 2014 15:04:12 -0400 Mike Burger mbur...@bubbanfriends.org wrote: Oli...perhaps instead of taking out your anger and frustration on the CentOS packagers My first statement was a simple FYI so that you know this requirement during installation. I found one problem with the initramfs file which has 300 MB in a tmpfs. The rest of the memory is used by processes, round about 300 MB. tmpfs: /run/, 311 MB used Anaconda is fat with ~ 200 MB, rest are our best friends, systemd, polkit and other new bloat. Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 7 Sep 2014 21:19:01 +0200 Oliver Schad cen...@automatic-server.com wrote: tmpfs: /run/, 311 MB used That is really funny: inside of this ramdisk is a tmp dir, with 279 MB inside, where the biggest part is the squashfs image and some files which are generated after start of installation. ├── curl_fetch_url0 ├── curl_fetch_url1 │ └── squashfs.img ├── curl_fetch_url2 ├── curl_fetch_url3 ├── dhclient.eth0.dhcpopts ├── dhclient.eth0.lease ├── dhclient.eth0.pid ├── F3ilzP-ks.cfg ├── ifcfg │ └── ifcfg-eth0 ├── ifcfg-leases │ └── dhclient-fb2320f7-4d9f-417f-ad33-33105024ca08-eth0.lease ├── ks.cfg ├── ks.cfg.done ├── ks.info ├── net.52:54:00:7b:80:c7.did-setup ├── net.eth0.dhcpopts ├── net.eth0.did-setup ├── net.eth0.gw ├── net.eth0.hostname ├── net.eth0.hwaddr ├── net.eth0.lease ├── net.eth0.manualup ├── net.eth0.pid ├── net.eth0.resolv.conf ├── net.eth0.up ├── net.ifaces └── net.lo.manualup That means that the squashfs is packed inside a initramfs during installation? I don't get the idea because we *have* a running system with a initramfs, that is the primer for the whole boot. Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 9/7/2014 11:56 AM, Oliver Schad wrote: On Sun, 07 Sep 2014 11:48:36 -0700 John R Piercepie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. Take it up with Red Hat.They state it requires 1GB, that was their choice.it installs in 1GB just fine. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
Ok, final result: deleting the initramfs files results in a clean installation. So we waste ~300 MB RAM during installation with a file nobody needs. Great. Best Regards Oli On Sun, 7 Sep 2014 21:45:40 +0200 Oliver Schad cen...@automatic-server.com wrote: On Sun, 7 Sep 2014 21:19:01 +0200 Oliver Schad cen...@automatic-server.com wrote: tmpfs: /run/, 311 MB used That is really funny: inside of this ramdisk is a tmp dir, with 279 MB inside, where the biggest part is the squashfs image and some files which are generated after start of installation. ├── curl_fetch_url0 ├── curl_fetch_url1 │ └── squashfs.img ├── curl_fetch_url2 ├── curl_fetch_url3 ├── dhclient.eth0.dhcpopts ├── dhclient.eth0.lease ├── dhclient.eth0.pid ├── F3ilzP-ks.cfg ├── ifcfg │ └── ifcfg-eth0 ├── ifcfg-leases │ └── dhclient-fb2320f7-4d9f-417f-ad33-33105024ca08-eth0.lease ├── ks.cfg ├── ks.cfg.done ├── ks.info ├── net.52:54:00:7b:80:c7.did-setup ├── net.eth0.dhcpopts ├── net.eth0.did-setup ├── net.eth0.gw ├── net.eth0.hostname ├── net.eth0.hwaddr ├── net.eth0.lease ├── net.eth0.manualup ├── net.eth0.pid ├── net.eth0.resolv.conf ├── net.eth0.up ├── net.ifaces └── net.lo.manualup That means that the squashfs is packed inside a initramfs during installation? I don't get the idea because we *have* a running system with a initramfs, that is the primer for the whole boot. Best Regards Oli signature.asc Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, September 7, 2014 2:04 pm, Mike Burger wrote: On 2014-09-07 2:56 pm, Oliver Schad wrote: On Sun, 07 Sep 2014 11:48:36 -0700 John R Pierce pie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. What matters is to think about ressources, even in a linux distro with long term support and enterprise features. Enterprise doesn't mean waste your money. And really, to double the memory to install a machine - are you kidding me? They've never thought about it and I really hate this attitude. Best Regards Oli Oli...perhaps instead of taking out your anger and frustration on the CentOS packagers, you might wish to vent at the Upstream... I wouldn't even do that, because what they do they do for their customers, right? Valeri because, when all is said and done, CentOS is a repackaged RHEL. Whatever the requirements are for the upstream are the requirements for CentOS. Whatever the installer looks for in RHEL is going to be the same thing that the installer looks for in CentOS. I will leave you with this minor piece of wisdome, which I've seen repeated in this list many times: if you don't agree with the requirements or feel that there's a bug in the installer, you are more than welcome to file a bug report with the upstream. -- Mike Burger http://www.bubbanfriends.org It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore. --Colonel Jack O'Neill, SG1 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
John R Pierce wrote: On 9/7/2014 11:56 AM, Oliver Schad wrote: On Sun, 07 Sep 2014 11:48:36 -0700 John R Piercepie...@hogranch.com wrote: On 9/7/2014 11:44 AM, Oliver Schad wrote: And CentOS 7 runs perfectly with 512 MB RAM https://access.redhat.com/articles/rhel-limits says 1GB minimum for x86_64. It doesn't matter what it says. Take it up with Red Hat.They state it requires 1GB, that was their choice.it installs in 1GB just fine. In my experience with the installation of Fedora 19/20 (same sort of anaconda installator, F19 has v19.30.13, F20 v20.25.16, Centos 7 has v19.31.79), RAM requirements also depend on the number of packages and their size. On some slightly larger installation (kickstart install from 8 repositories with over 5 RPMs, 3600+ packages was installed, highest rpm package file had over 200 MB in size) was 1.5 GB RAM insufficient, with 2 GB RAM installation was successful. Franta Hanzlik ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, Sep 7, 2014 at 2:04 PM, Mike Burger mbur...@bubbanfriends.org wrote: Oli...perhaps instead of taking out your anger and frustration on the CentOS packagers, you might wish to vent at the Upstream...because, when all is said and done, CentOS is a repackaged RHEL. Whatever the requirements are for the upstream are the requirements for CentOS. Whatever the installer looks for in RHEL is going to be the same thing that the installer looks for in CentOS. Well they did have the opportunity to make changes in the minimal iso since that doesn't directly correspond to a RHEL version. I haven't used it yet because I already had the dvd downloaded, but if you have reasonable internet bandwidth, I think a minimal initial install makes sense, followed by telling yum to install whatever else you might need since there's a good change you'll download them as updates anyway. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 9/7/2014 3:40 PM, Les Mikesell wrote: Well they did have the opportunity to make changes in the minimal iso since that doesn't directly correspond to a RHEL version. I haven't used it yet because I already had the dvd downloaded, but if you have reasonable internet bandwidth, I think a minimal initial install makes sense, followed by telling yum to install whatever else you might need since there's a good change you'll download them as updates anyway. the RPMs are all the same RPMs. they woudl have had to build a completely new installer rather than just a kickstart that specifies the minimum packages -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, Sep 7, 2014 at 5:48 PM, John R Pierce pie...@hogranch.com wrote: On 9/7/2014 3:40 PM, Les Mikesell wrote: Well they did have the opportunity to make changes in the minimal iso since that doesn't directly correspond to a RHEL version. I haven't used it yet because I already had the dvd downloaded, but if you have reasonable internet bandwidth, I think a minimal initial install makes sense, followed by telling yum to install whatever else you might need since there's a good change you'll download them as updates anyway. the RPMs are all the same RPMs. they woudl have had to build a completely new installer rather than just a kickstart that specifies the minimum packages It might be possible to trim the size of the ramdisk that is a large part of the requirement. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sun, 2014-09-07 at 14:00 -0500, Valeri Galtsev wrote: Somehow it comes to my mind what someone called M$ Windows somewhere around Windows XP: bloated pig ;-) Starting with Windoze 95, it has been bloatware. -- Regards, Paul. England, EU. Centos, Exim, Apache, Libre Office. Linux is the future. Micro$oft is the past. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On Sep 7, 2014, at 2:44 PM, Oliver Schad cen...@automatic-server.com wrote: And CentOS 7 runs perfectly with 512 MB RAM, only the installer is br0ken. Is it a java installer? *g* The installer (anaconda) is written in python. The memory limit is hard-coded into the installer, not based on how much memory the installer needs (although the limits for the GUI installer is more than the non-GUI, iirc). -- Jonathan Billings billi...@negate.org signature.asc Description: Message signed with OpenPGP using GPGMail ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
How much memory does it take to run and install from a live CD? What about a clone of a partition that has CentOS installed? -- Michael henne...@web.cs.ndsu.nodak.edu SCSI is NOT magic. There are *fundamental technical reasons* why it is necessary to sacrifice a young goat to your SCSI chain now and then. -- John Woods ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 09/07/14 16:06, Oliver Schad wrote: Ok, final result: deleting the initramfs files results in a clean installation. So we waste ~300 MB RAM during installation with a file nobody needs. Great. Best Regards Oli On Sun, 7 Sep 2014 21:45:40 +0200 Oliver Schad cen...@automatic-server.com wrote: On Sun, 7 Sep 2014 21:19:01 +0200 Oliver Schad cen...@automatic-server.com wrote: tmpfs: /run/, 311 MB used That is really funny: inside of this ramdisk is a tmp dir, with 279 MB inside, where the biggest part is the squashfs image and some files which are generated after start of installation. ├── curl_fetch_url0 ├── curl_fetch_url1 │ └── squashfs.img ├── curl_fetch_url2 ├── curl_fetch_url3 ├── dhclient.eth0.dhcpopts ├── dhclient.eth0.lease ├── dhclient.eth0.pid ├── F3ilzP-ks.cfg ├── ifcfg │ └── ifcfg-eth0 ├── ifcfg-leases │ └── dhclient-fb2320f7-4d9f-417f-ad33-33105024ca08-eth0.lease ├── ks.cfg ├── ks.cfg.done ├── ks.info ├── net.52:54:00:7b:80:c7.did-setup ├── net.eth0.dhcpopts ├── net.eth0.did-setup ├── net.eth0.gw ├── net.eth0.hostname ├── net.eth0.hwaddr ├── net.eth0.lease ├── net.eth0.manualup ├── net.eth0.pid ├── net.eth0.resolv.conf ├── net.eth0.up ├── net.ifaces └── net.lo.manualup That means that the squashfs is packed inside a initramfs during installation? I don't get the idea because we *have* a running system with a initramfs, that is the primer for the whole boot. Best Regards Oli Sounds like you've figured out exactly what to write in your bug report to the upstream. On another slant, why don't you consider increasing the RAM to 1G, making the install, then cloning the disk on the other 9.999 machines? - -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (GNU/Linux) iQEcBAEBAgAGBQJUDQgGAAoJEOKvcl2cb48HMGQIAKEzXhDEaE6ZJD4X7VWbFDJ8 +ovj48fJh9OId2tJeZIK9+1GDiN4mcWQuC0YcHdedhZvLTNivynvyllbaON3+PJe 1fs+XnqYoodIK7ISEe4mwTM6CCp657LG1e24wrddaYdLopBtHRpGIC2glV4mQypW FV86P/56DMoG6YC9mOHhDMBj+DKGPwFNiYFDawX9Ml6d8pBrDuBTnU/0tnmYg0Vm +tzd23wOPM9z8vI8I1AYKyAM1k7bJ1qG9YuFmG4JNwVIpJlAI5kB5wxGotMyZrk3 n/pzNV7plSB1VhfW3h535Tc9aYJpmzM/OGtWy7oOuR9VoyW2QpxytM2ABlJGzKc= =bELI -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Minimum RAM for CentOS7
On 2014-09-07, Oliver Schad cen...@automatic-server.com wrote: I don't see a reason, why I should have a zoo of distros. A productive basic installation of CentOS 7 needs ~ 100 MB RAM. Why the installation needs more than 5 times that is really interesting question. Are you volunteering to organize a SIG around low-memory installations? --keith -- kkel...@wombat.san-francisco.ca.us ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
