[gentoo-user] what is lvmetad?
In the newest lvm, there is something called lvmetad, but it won't start because /run/lvm is missing. When I created by hand, it then started, but when I then started lvm which would not start without lvmetad, it said lvmetad was started, but disabled. Can anyone tell me what is going on here? Thanks. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] what is lvmetad?
On 28/02/2014 21:12, cov...@ccs.covici.com wrote: In the newest lvm, there is something called lvmetad, but it won't start because /run/lvm is missing. When I created by hand, it then started, but when I then started lvm which would not start without lvmetad, it said lvmetad was started, but disabled. Can anyone tell me what is going on here? Thanks. the ebuild issues an elog: * Make sure the lvm init script is in the runlevels: * # rc-update add lvm boot * * Make sure to enable lvmetad in /etc/lvm/lvm.conf if you want * to enable lvm autoactivation and metadata caching. Did you notice it and follow it? -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] what is lvmetad?
Alan McKinnon alan.mckin...@gmail.com wrote: On 28/02/2014 21:12, cov...@ccs.covici.com wrote: In the newest lvm, there is something called lvmetad, but it won't start because /run/lvm is missing. When I created by hand, it then started, but when I then started lvm which would not start without lvmetad, it said lvmetad was started, but disabled. Can anyone tell me what is going on here? Thanks. the ebuild issues an elog: * Make sure the lvm init script is in the runlevels: * # rc-update add lvm boot * * Make sure to enable lvmetad in /etc/lvm/lvm.conf if you want * to enable lvm autoactivation and metadata caching. Did you notice it and follow it? I did not ignore, but I could not find where use_lvmetad was and up till now it never made any difference, but I see where it is. but lvmetad would not start at all till I manually created /run/lvm. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] what is lvmetad?
On 28/02/2014 21:47, cov...@ccs.covici.com wrote: Alan McKinnon alan.mckin...@gmail.com wrote: On 28/02/2014 21:12, cov...@ccs.covici.com wrote: In the newest lvm, there is something called lvmetad, but it won't start because /run/lvm is missing. When I created by hand, it then started, but when I then started lvm which would not start without lvmetad, it said lvmetad was started, but disabled. Can anyone tell me what is going on here? Thanks. the ebuild issues an elog: * Make sure the lvm init script is in the runlevels: * # rc-update add lvm boot * * Make sure to enable lvmetad in /etc/lvm/lvm.conf if you want * to enable lvm autoactivation and metadata caching. Did you notice it and follow it? I did not ignore, but I could not find where use_lvmetad was and up till now it never made any difference, but I see where it is. but lvmetad would not start at all till I manually created /run/lvm. /run is a tmpfs, so something must mkdir it as startup time. I reckon that is device-mapper: $ grep /run/lvm * device-mapper: checkpath -q -d -m 0700 -o root:root /run/lvm /run/lock/lvm lvmetad:pidfile=/var/run/lvmetad.pid Do you have device-mapper configured to run? I must admit I see oddities sometimes on my lvm-enabled hosts where the /var/run - /run symlinks are missing. I think you should file a bug, either the code is wrong or the docs/elogs are insufficient here -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] what is lvmetad?
Alan McKinnon alan.mckin...@gmail.com wrote: On 28/02/2014 21:47, cov...@ccs.covici.com wrote: Alan McKinnon alan.mckin...@gmail.com wrote: On 28/02/2014 21:12, cov...@ccs.covici.com wrote: In the newest lvm, there is something called lvmetad, but it won't start because /run/lvm is missing. When I created by hand, it then started, but when I then started lvm which would not start without lvmetad, it said lvmetad was started, but disabled. Can anyone tell me what is going on here? Thanks. the ebuild issues an elog: * Make sure the lvm init script is in the runlevels: * # rc-update add lvm boot * * Make sure to enable lvmetad in /etc/lvm/lvm.conf if you want * to enable lvm autoactivation and metadata caching. Did you notice it and follow it? I did not ignore, but I could not find where use_lvmetad was and up till now it never made any difference, but I see where it is. but lvmetad would not start at all till I manually created /run/lvm. /run is a tmpfs, so something must mkdir it as startup time. I reckon that is device-mapper: $ grep /run/lvm * device-mapper: checkpath -q -d -m 0700 -o root:root /run/lvm /run/lock/lvm lvmetad:pidfile=/var/run/lvmetad.pid Do you have device-mapper configured to run? I must admit I see oddities sometimes on my lvm-enabled hosts where the /var/run - /run symlinks are missing. I think you should file a bug, either the code is wrong or the docs/elogs are insufficient here Maybe I will do that as the lvmetad is started before devicemapper if I remember correctly or somehow the dependencies are wrong. I am not sure why its a requirement, I don't scan new lvm volumes very often at all, so its not saving any time, if that is why it exists. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
