* bug#22962: Something keeps overwriting /etc/hosts @ 2016-03-09 20:42 Danny Milosavljevic 2016-03-09 23:28 ` Danny Milosavljevic 0 siblings, 1 reply; 4+ messages in thread From: Danny Milosavljevic @ 2016-03-09 20:42 UTC (permalink / raw) To: 22962 ^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#22962: Something keeps overwriting /etc/hosts 2016-03-09 20:42 bug#22962: Something keeps overwriting /etc/hosts Danny Milosavljevic @ 2016-03-09 23:28 ` Danny Milosavljevic 2016-03-10 1:43 ` Leo Famulari 0 siblings, 1 reply; 4+ messages in thread From: Danny Milosavljevic @ 2016-03-09 23:28 UTC (permalink / raw) To: 22962 If I make it immutable, I get the following message on guix system reconfigure ... : guix system: error: copy-file: Permission denied: "/etc/hosts" Aha! ^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#22962: Something keeps overwriting /etc/hosts 2016-03-09 23:28 ` Danny Milosavljevic @ 2016-03-10 1:43 ` Leo Famulari 2016-03-10 8:39 ` Alex Kost 0 siblings, 1 reply; 4+ messages in thread From: Leo Famulari @ 2016-03-10 1:43 UTC (permalink / raw) To: Danny Milosavljevic; +Cc: 22962 On Thu, Mar 10, 2016 at 12:28:11AM +0100, Danny Milosavljevic wrote: > If I make it immutable, I get the following message on guix system reconfigure ... : > > guix system: error: copy-file: Permission denied: "/etc/hosts" > > Aha! I think that on GuixSD, the hosts file is generated from the system configuration, specifically the 'hosts-file' field, which is mentioned in section 7.2.2 Operating System Reference [0]. I assume that the resulting file is recreated each time you reconfigure. In that case, you'd want to leave the file /etc/hosts alone, and make your changes in the operating system configuration. I say "I think" and "I assume" because I haven't actually used 'hosts-file' yet, nor have I looked at that part of the code. Does that help? [0] https://www.gnu.org/software/guix/manual/guix.html#operating_002dsystem-Reference ^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#22962: Something keeps overwriting /etc/hosts 2016-03-10 1:43 ` Leo Famulari @ 2016-03-10 8:39 ` Alex Kost 0 siblings, 0 replies; 4+ messages in thread From: Alex Kost @ 2016-03-10 8:39 UTC (permalink / raw) To: Leo Famulari; +Cc: 22962 Leo Famulari (2016-03-10 04:43 +0300) wrote: > On Thu, Mar 10, 2016 at 12:28:11AM +0100, Danny Milosavljevic wrote: >> If I make it immutable, I get the following message on guix system reconfigure ... : >> >> guix system: error: copy-file: Permission denied: "/etc/hosts" >> >> Aha! > > I think that on GuixSD, the hosts file is generated from the system > configuration, specifically the 'hosts-file' field, which is mentioned > in section 7.2.2 Operating System Reference [0]. > > I assume that the resulting file is recreated each time you reconfigure. > > In that case, you'd want to leave the file /etc/hosts alone, and make > your changes in the operating system configuration. > > I say "I think" and "I assume" because I haven't actually used > 'hosts-file' yet, nor have I looked at that part of the code. You are absolutely right! On GuixSD, to modify /etc/hosts a user need to adjust his/her system config. Danny, you can keep your hosts file wherever you want, let's say "~/my-config/hosts"; and you can add this line to your operating-system declaration: (hosts-file (local-file (string-append (getenv "HOME") "/my-config/hosts"))) After reconfiguring your system, this file will be put into the store, and /etc/hosts will have the same contents after reboot. Moreover, every time you change this file and make a new system, a new version of "hosts" will be put to the store. So if you boot into some old system, it will be booted with the hosts file that was used at that time (as you can see, every system in /var/guix/profiles, has its own "etc/hosts"). -- Alex ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-03-10 8:39 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-03-09 20:42 bug#22962: Something keeps overwriting /etc/hosts Danny Milosavljevic 2016-03-09 23:28 ` Danny Milosavljevic 2016-03-10 1:43 ` Leo Famulari 2016-03-10 8:39 ` Alex Kost
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