Re: [Vserver] I think I goofed [solved]
On Fri, Sep 16, 2005 at 10:37:12AM -0400, Chuck wrote: On Thursday 15 September 2005 11:44 pm, Chuck wrote: The error below has been fixed. I make my clones using cp -la template/* new-guest to create links. Then I remove etc root home and var from the guest and copy real files into it from the template rather than have links in those. The problem was that I accidently ran setattr --iunlink on a clone etc directory instead of removing the directoy to copy real files in place. This changed the template /etc which caused the error. Normally I would not have even found it since I would not run a template, but on this test bed the template is being used. To cure the problem I ran setattr --~iunlink on the template /etc directory and files. note: the --iunlink sets the 'immutable' flag as well as the 'immutable unlink' flag, basically making those files immutable against changes, which not even the CoW link breaking will break, as they are not hardlinked anymore the --~iunlink removes both flags and makes them normal files again ... thanks for the followup! best, Herbert i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if ithat cures t. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] I think I goofed [solved]
On Friday 16 September 2005 10:52 am, Herbert Poetzl wrote: note: the --iunlink sets the 'immutable' flag as well as the 'immutable unlink' flag, basically making those files immutable against changes, which not even the CoW link breaking will break, as they are not hardlinked anymore the --~iunlink removes both flags and makes them normal files again ... ok now i am totally confused. i thought running --iunlink made the links breakable/copyable under the 2.1 setups? so then if --iunlink creates permanent links to files that cannot be touched, what do i run to take advantage of the 2.1 CoW ? thanks for the followup! best, Herbert i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if ithat cures t. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] I think I goofed [solved]
On Friday 16 September 2005 11:08 am, Herbert Poetzl wrote: On Fri, Sep 16, 2005 at 10:56:49AM -0400, Chuck wrote: On Friday 16 September 2005 10:52 am, Herbert Poetzl wrote: note: the --iunlink sets the 'immutable' flag as well as the 'immutable unlink' flag, basically making those files immutable against changes, which not even the CoW link breaking will break, as they are not hardlinked anymore the --~iunlink removes both flags and makes them normal files again ... ok now i am totally confused. i thought running --iunlink made the links breakable/copyable under the 2.1 setups? yes, it does ... so then if --iunlink creates permanent links to files that cannot be touched, what do i run to take advantage of the 2.1 CoW ? not _links_ that is the important detail here ... touch /tmp/x setattr --iunlink /tmp/x and you get an immutable file, you can remove, but not alter ... touch /tmp/a ln /tmp/a /tmp/b setattr --iunlink /tmp/a and you have two files (a,b) which are unified (i.e. a hardlink to the same inode) which will be CoW breakable on devel versions (2.1.x) oh my. i think i did it all wrong then. if i was supposed to run the setattr cmd on the files themselves.. i ran it on the links in the clones.. according to above i should have run it on the template files. hope that clarifies, Herbert thanks for the followup! best, Herbert i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if ithat cures t. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] I think I goofed [solved]
On Fri, Sep 16, 2005 at 11:12:24AM -0400, Chuck wrote: On Friday 16 September 2005 11:08 am, Herbert Poetzl wrote: On Fri, Sep 16, 2005 at 10:56:49AM -0400, Chuck wrote: On Friday 16 September 2005 10:52 am, Herbert Poetzl wrote: note: the --iunlink sets the 'immutable' flag as well as the 'immutable unlink' flag, basically making those files immutable against changes, which not even the CoW link breaking will break, as they are not hardlinked anymore the --~iunlink removes both flags and makes them normal files again ... ok now i am totally confused. i thought running --iunlink made the links breakable/copyable under the 2.1 setups? yes, it does ... so then if --iunlink creates permanent links to files that cannot be touched, what do i run to take advantage of the 2.1 CoW ? not _links_ that is the important detail here ... touch /tmp/x setattr --iunlink /tmp/x and you get an immutable file, you can remove, but not alter ... touch /tmp/a ln /tmp/a /tmp/b setattr --iunlink /tmp/a and you have two files (a,b) which are unified (i.e. a hardlink to the same inode) which will be CoW breakable on devel versions (2.1.x) oh my. i think i did it all wrong then. if i was supposed to run the setattr cmd on the files themselves.. i ran it on the links in the clones.. according to above i should have run it on the template files. both 'file' and 'link' are identical and indistinguishable (this is a property of hard links) so the choice is yours (i.e. both will have the flags set afterwards :) HTH, Herbert hope that clarifies, Herbert thanks for the followup! best, Herbert i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if ithat cures t. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list
Re: [Vserver] I think I goofed [solved]
On Friday 16 September 2005 11:16 am, Herbert Poetzl wrote: On Fri, Sep 16, 2005 at 11:12:24AM -0400, Chuck wrote: On Friday 16 September 2005 11:08 am, Herbert Poetzl wrote: On Fri, Sep 16, 2005 at 10:56:49AM -0400, Chuck wrote: On Friday 16 September 2005 10:52 am, Herbert Poetzl wrote: note: the --iunlink sets the 'immutable' flag as well as the 'immutable unlink' flag, basically making those files immutable against changes, which not even the CoW link breaking will break, as they are not hardlinked anymore the --~iunlink removes both flags and makes them normal files again ... ok now i am totally confused. i thought running --iunlink made the links breakable/copyable under the 2.1 setups? yes, it does ... so then if --iunlink creates permanent links to files that cannot be touched, what do i run to take advantage of the 2.1 CoW ? not _links_ that is the important detail here ... touch /tmp/x setattr --iunlink /tmp/x and you get an immutable file, you can remove, but not alter ... touch /tmp/a ln /tmp/a /tmp/b setattr --iunlink /tmp/a and you have two files (a,b) which are unified (i.e. a hardlink to the same inode) which will be CoW breakable on devel versions (2.1.x) oh my. i think i did it all wrong then. if i was supposed to run the setattr cmd on the files themselves.. i ran it on the links in the clones.. according to above i should have run it on the template files. both 'file' and 'link' are identical and indistinguishable (this is a property of hard links) so the choice is yours (i.e. both will have the flags set afterwards :) whew .. ok HTH, Herbert hope that clarifies, Herbert thanks for the followup! best, Herbert i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if ithat cures t. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system
[Vserver] I think I goofed
i just copied my template into 3 other vservers using hard link cloning along with copying real files into the etc and var. they run ok however I now get an error on start I never got before. I hope I didn't goof using the setattr command. error listed next davin etc # /etc/init.d/vservers start * Starting all vservers ... chroot-shopen(/etc/mtab): Permission denied secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file secure-mount: open(mtab): Permission denied Failed to update mtab-file i just tried setting the attrs mount option on my host / to see if that cures it. didn't have this until I made the 3 other vservers. finished reboot and that didn't cure anything :( I will say this though in converting my 3 vservers into hard linked clones all 4 servers including the template now take up 1/3 the amount of space they did before this :) -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
