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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Thu Feb 07, 2008 11:32 pm Post subject: Hardly changed decisions (after installation) - A LIST |
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Hardly changed decisions (after installation) - A LIST
Hello.
I would like to make a list of every decisions in the install process of Gentoo that is NOT EASILY changed afterwards.
For example : partitioning scheme, filesystem types, using encryption for the whole system, etc.
Any idea's welcome :)
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*** UPDATE : The list of hardly changed things after install (as of 2015-04-22) ***
1. Partitionning
2. Filesystem
3. CHOST
4. Profile type
5. 32 bit vs 64 bit
(*). Gentoo itself
Last edited by user118696 on Wed Apr 22, 2015 1:49 am; edited 2 times in total |
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manuels Advocate
Joined: 22 Nov 2003 Posts: 2146 Location: Europe
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NathanZachary Moderator
Joined: 30 Jan 2007 Posts: 2608
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Posted: Fri Feb 08, 2008 8:09 pm Post subject: |
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This is a great idea for a thread, but it probably should be in Gentoo Chat instead. I will notify the moderator team. _________________ “Truth, like infinity, is to be forever approached but never reached.” --Jean Ayres (1972)
---avatar cropped from =AimanStudio--- |
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desultory Bodhisattva
Joined: 04 Nov 2005 Posts: 9410
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Posted: Sat Feb 09, 2008 9:39 am Post subject: |
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Moved from Installing Gentoo to Gentoo Chat. |
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NeddySeagoon Administrator
Joined: 05 Jul 2003 Posts: 54550 Location: 56N 3W
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Posted: Sat Feb 09, 2008 11:23 am Post subject: |
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muaddib,
Changing CHOST.
Users who think they need to do this actually started with the wrong tarball. However, when glibc dropped support for CHOST="i386-pc-linux-gnu" there was a Chinging CHOST guide produced, as many such users had no choice if they wanted to stay current with glibc.
Health Warning
This setting only affects your toolchain, not the code it produces, which is set by your CFLAGS. Users with CHOST="i486-pc-linux-gnu" on i686 systems should not try to fix it. It means that you have a toolchain that will run on an i486 CPU, so your compiles will take a little longer, maybe seconds but compared to the time taken to do the 'fix' its just not worth it. _________________ Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Fri Dec 05, 2008 11:17 pm Post subject: Hardly changed settings after install - Part 2 |
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[...] Away to another distro (Archlinux)... and back as usual. Nothing is better than Gentoo, that's REALLY true. [...]
So here I'm back after a pause of a few months and I'd like to get more items on the list of hardly changed things AFTER install.
Any idea? Especially if you are a system administrator. Any settings hard to change, any programs, etc.
As of now, it looks like this :
1. Disk partitionning
2. Filesystem type (including encryption)
3. CHOST
What else? |
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timeBandit Bodhisattva
Joined: 31 Dec 2004 Posts: 2719 Location: here, there or in transit
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Posted: Fri Dec 05, 2008 11:36 pm Post subject: Re: Hardly changed settings after install - Part 2 |
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muaddib wrote: | 1. Disk partitionning
2. Filesystem type (including encryption) | In practice neither one of these is difficult, if you have enough space to make a copy of the filesystem(s)/partition(s) you want to change. It's one reason I recommend leaving a substantial block of unallocated free space on big drives.
I rearranged my disks several times before I was content. I wouldn't call it "hard" but careful planning and execution is a must. _________________ Plants are pithy, brooks tend to babble--I'm content to lie between them.
Super-short f.g.o checklist: Search first, strip comments, mark solved, help others. |
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Genone Retired Dev
Joined: 14 Mar 2003 Posts: 9596 Location: beyond the rim
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Posted: Sat Dec 06, 2008 12:17 am Post subject: |
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Profile type. While it's (usually) trivial to change the profile within a given type (e.g. from default/2007.0 to default/2008.0), switching between e.g. default, hardened and uclibc profiles is a lot more complicated, if possible at all. |
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Captain Newbie Apprentice
Joined: 22 Dec 2006 Posts: 182 Location: Socal
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Posted: Sat Dec 06, 2008 1:50 am Post subject: |
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I had little trouble changing my CHOST from 386 to 686 a few years ago, although I'm probably just lucky, and followed the instructions at gentoo.org to the letter. It's not something I would want to do regularly, though. _________________ /* Nobody will ever see this message */
panic("Cannot initialize video hardware\n");
"As much as it pains me, we hope that developers know what they're doing." - wolf31o2 |
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d2_racing Bodhisattva
Joined: 25 Apr 2005 Posts: 13047 Location: Ste-Foy,Canada
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Posted: Sat Dec 06, 2008 1:57 am Post subject: |
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Changing the filesystem |
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neysx Retired Dev
Joined: 27 Jan 2003 Posts: 795
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Posted: Sat Dec 06, 2008 9:55 am Post subject: Re: Hardly changed decisions (after installation) - A LIST |
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muaddib wrote: | Hardly changed decisions (after installation) - A LIST
I would like to make a list of every decisions in the install process of Gentoo that is NOT EASILY changed afterwards. | Choosing Gentoo. 6 years on and I still can't undo that choice |
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neysx Retired Dev
Joined: 27 Jan 2003 Posts: 795
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Posted: Sat Dec 06, 2008 10:14 am Post subject: |
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NeddySeagoon wrote: | Changing CHOST.
Health Warning
This setting only affects your toolchain, not the code it produces, which is set by your CFLAGS. | Not entirely true. I know of at least one ebuild that forces your CHOST setting into the CFLAGS, e.g. it uses -march=i686 if CHOST=="i686-pc-linux-gnu" |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Sat Dec 06, 2008 3:37 pm Post subject: Re: Hardly changed decisions (after installation) - A LIST |
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neysx ("Choosing Gentoo. 6 years on and I still can't undo that choice")
That's SO true! Over the years (I've been here since pretty much the beginning of Gentoo), four times I've tried another distro. EVERY TIME I came back running to my patiently waiting Gentoo which knew I wouldn't be able to live without it.
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Good to see that the list of hardly changed decisions isn't that long and, as some pointed out, that some of the items on the list can be changed afterall.
1. Partitionning
2. Filesystem
3. CHOST
4. Profile type
(*). Gentoo itself
If you have more ideas, don't hesitate to post! |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Tue Oct 27, 2009 6:44 pm Post subject: Anymore ideas about hardly changed decisions (after installa |
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Anymore ideas about hardly changed decisions (after installation)? |
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rafo Apprentice
Joined: 18 Nov 2003 Posts: 161 Location: Sollentuna, Sweden
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Posted: Thu Oct 29, 2009 11:25 pm Post subject: |
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Declaring in /etc/make.conf to use unstable packages for everything. I did it once ... and after a while I made an install from scratch, which seemed the easiest way back to a sane system. |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Tue Nov 16, 2010 4:53 am Post subject: |
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Building a new Gentoo soon... Thinking about what I should REALLY plan ahead once more, I remembered this old post. Anyone with new ideas. Thanx. |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Mon Apr 20, 2015 7:18 pm Post subject: Coming back after a loooonnnng break ! |
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Off Gentoo for almost five years... what a shame ! But always coming back.
I was wondering, anything new I should pay attention too.
Anyone with new ideas regarding hardly changed options set at first install. |
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arnvidr l33t
Joined: 19 Aug 2004 Posts: 629 Location: Oslo, Norway
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Posted: Tue Apr 21, 2015 6:16 am Post subject: |
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Did a fresh install recently. Your list seems fine. Everything else is just compiles. _________________
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krinn Watchman
Joined: 02 May 2003 Posts: 7470
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Posted: Tue Apr 21, 2015 8:00 am Post subject: |
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arch: choosing 32bits and swtiching to 64bits (as you have add ram...), chost, multi<>multilibs.
if you mistake on partitions/fs it should be no problem for everyone, if you cannot backup your partitions for the switch, then you have a problem, but not because you did bad choice at first, as you will soon see. |
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WWWW Tux's lil' helper
Joined: 30 Nov 2014 Posts: 143
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Posted: Tue Apr 21, 2015 9:54 am Post subject: |
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lmv <-- seconded
much more fun and crazy flexibility! This is the modern way of doing things, else btrfs or zfs. But btrfs doesn't have support for volumes. |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Wed Apr 22, 2015 1:47 am Post subject: |
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Great to be back ! Thank you all for your replies ! |
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Simba7 l33t
Joined: 22 Jan 2007 Posts: 706 Location: Billings, MT, USA
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Posted: Wed Apr 22, 2015 2:52 am Post subject: |
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Well, package.mask, .unmask, and .use are now directories. Not quite sure why they did that recently. |
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arnvidr l33t
Joined: 19 Aug 2004 Posts: 629 Location: Oslo, Norway
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Posted: Wed Apr 22, 2015 6:17 am Post subject: |
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Simba7 wrote: | Well, package.mask, .unmask, and .use are now directories. Not quite sure why they did that recently. | They don't need to be, and I'm sure they've had the ability to be for many years. _________________
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Kethreveris n00b
Joined: 16 Feb 2009 Posts: 20 Location: Rethwallen
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Posted: Sat Apr 25, 2015 6:27 am Post subject: |
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One thing I wish I had started from the beginning, was alternate boot environments.
Have 2 separate EXT3/4 partitions for the Root FS / OS. Then having the following
separate from root FS. (In my case, I used soft-links to my dumping ground.)
/usr/portage/distfiles
/usr/src
/home
/dumping_ground
...
For updates, ABEs make things much nicer. With 2 ABEs I basically do a "rsync" with
"--delete" from my current to the prior. Alter a few files like "fstab" and "grub.conf", then
reboot to the new ABE. Make my Gentoo updates. If they go south, rare but happens,
a simple reboot to the prior ABE restores functionality.
It was hard to re-do after the fact. Easier for a new install.
Now with BTRFS, my ABEs and all my file systems are in 1 partition. Easier dealing
with the space, (and using snapshots for new ABE). ZFS should be similar. But I still
separate out the RootFS from all the others. _________________ Kethreveris, (aka Kethrery) |
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user118696 Apprentice
Joined: 16 Sep 2005 Posts: 276
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Posted: Sun Apr 26, 2015 2:01 am Post subject: |
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Thank you Kethreveris.
Interesting idea... but is it really worth the effort ?
You must be running quite unstable stuff... |
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