Re: [Libosinfo] Improve the size of default memory for rhel6 guest to 2048M
Hi Daniel, Thank for your reply, because I have no experience on writing patch, I have turned David for help, he will help me to prepare or submit patches. Best Regards XieMing - Original Message - From: "Daniel P. Berrange" To: "Ming Xie" Cc: libosinfo@redhat.com, phrd...@redhat.com, tzh...@redhat.com, juz...@redhat.com, "Xiaodai Wang" , lhu...@redhat.com, "David King" Sent: Tuesday, September 20, 2016 6:36:16 PM Subject: Re: [Libosinfo] Improve the size of default memory for rhel6 guest to 2048M On Tue, Sep 20, 2016 at 06:25:02AM -0400, Ming Xie wrote: > Hi All, > > I meet a problem that guest can't boot into rhel6 after installation > or rhel6 can't be installed in guest if the guest has only 1GB memory > and has no swap partition, I know this is not bug because rhel6 systems > with low memory(1 GB and less) and less than the recommended amount of > swap space may have issues ranging from low responsivity up to and > including complete inability to boot after the installation > > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/sn-Supported_Installation_Hardware-x86.html > > I see virt-manager built for rhel7 could adjust memory to 4096M when > create windows guest , but the default memory size always will be set > as 1024M when create linux guest in virt-manager, customers may don't > know rhel6 need to create swap if memory < =1GB, I think the default > memory size 1GB is not appropriate when create rhel6 guest in > virt-manager, besides, virtualbox has a related bug about this > ttps://www.virtualbox.org/ticket/8490 , customer has thought default > memory setting is too low to install rhel6 in guest > Could we improve the size of default memory for rhel6 guest to 2048M > so that customer doesn't need to care about whether need to create a > swap partition if mem < 1G and it will reduce the risk of failure > installation in rhel6 guest Yes, I don't know why we have set the recommended level at 1GB, as it is clearly too low to be useful. We currently have the min ram set at 512 MB: 1 536870912 4 1073741824 9663676416 Based on this: https://access.redhat.com/articles/rhel-limits 512 MB is only acceptable for i386, x86_64 requires 1 GB min and PPC wants 2 GB. So we clearly need to update the RHEL6 limits both minimum and recommended. Could you submit a patch for the various RHEL XML files to update these limits. Regards, Daniel -- |: http://berrange.com -o-http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| ___ Libosinfo mailing list Libosinfo@redhat.com https://www.redhat.com/mailman/listinfo/libosinfo
Re: [Libosinfo] Improve the size of default memory for rhel6 guest to 2048M
On Tue, Sep 20, 2016 at 06:25:02AM -0400, Ming Xie wrote: > Hi All, > > I meet a problem that guest can't boot into rhel6 after installation > or rhel6 can't be installed in guest if the guest has only 1GB memory > and has no swap partition, I know this is not bug because rhel6 systems > with low memory(1 GB and less) and less than the recommended amount of > swap space may have issues ranging from low responsivity up to and > including complete inability to boot after the installation > > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/sn-Supported_Installation_Hardware-x86.html > > I see virt-manager built for rhel7 could adjust memory to 4096M when > create windows guest , but the default memory size always will be set > as 1024M when create linux guest in virt-manager, customers may don't > know rhel6 need to create swap if memory < =1GB, I think the default > memory size 1GB is not appropriate when create rhel6 guest in > virt-manager, besides, virtualbox has a related bug about this > ttps://www.virtualbox.org/ticket/8490 , customer has thought default > memory setting is too low to install rhel6 in guest > Could we improve the size of default memory for rhel6 guest to 2048M > so that customer doesn't need to care about whether need to create a > swap partition if mem < 1G and it will reduce the risk of failure > installation in rhel6 guest Yes, I don't know why we have set the recommended level at 1GB, as it is clearly too low to be useful. We currently have the min ram set at 512 MB: 1 536870912 4 1073741824 9663676416 Based on this: https://access.redhat.com/articles/rhel-limits 512 MB is only acceptable for i386, x86_64 requires 1 GB min and PPC wants 2 GB. So we clearly need to update the RHEL6 limits both minimum and recommended. Could you submit a patch for the various RHEL XML files to update these limits. Regards, Daniel -- |: http://berrange.com -o-http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| ___ Libosinfo mailing list Libosinfo@redhat.com https://www.redhat.com/mailman/listinfo/libosinfo
[Libosinfo] Improve the size of default memory for rhel6 guest to 2048M
Hi All, I meet a problem that guest can't boot into rhel6 after installation or rhel6 can't be installed in guest if the guest has only 1GB memory and has no swap partition, I know this is not bug because rhel6 systems with low memory(1 GB and less) and less than the recommended amount of swap space may have issues ranging from low responsivity up to and including complete inability to boot after the installation https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/sn-Supported_Installation_Hardware-x86.html I see virt-manager built for rhel7 could adjust memory to 4096M when create windows guest , but the default memory size always will be set as 1024M when create linux guest in virt-manager, customers may don't know rhel6 need to create swap if memory < =1GB, I think the default memory size 1GB is not appropriate when create rhel6 guest in virt-manager, besides, virtualbox has a related bug about this h ttps://www.virtualbox.org/ticket/8490 , customer has thought default memory setting is too low to install rhel6 in guest Could we improve the size of default memory for rhel6 guest to 2048M so that customer doesn't need to care about whether need to create a swap partition if mem < 1G and it will reduce the risk of failure installation in rhel6 guest Thanks Regards XieMing ___ Libosinfo mailing list Libosinfo@redhat.com https://www.redhat.com/mailman/listinfo/libosinfo
