Gentoo Installation Bullet-point List

Josh Perry — Tue, 09 Feb 2010 23:21:54 +0000

I install Gentoo often enough that the Gentoo Handbook is way too verbose, but not often enough to memorize the steps involved. This list is meant mainly for me, but also for anyone who is comfortable enough in Linux to know what to do with a description like “Partition disk and create file systems”.

Config network, ip addr/dhcpcd

Partition Drive
Create Filesystems

mkswap & swapon

Mount root at /mnt/gentoo
Mount boot at /mnt/gentoo/boot

date

cd /mnt/gentoo

Get stage3 and portage snapshot archives
links http://www.gentoo.org/main/en/mirrors.xml tar jxvfp stage3*.tar.bz2 tar jxvf portagesnapshot.tar.bz2 -C /mnt/gentoo/usr

Edit /mnt/gentoo/etc/make.conf
Set CHOST CFLAGS; set MAKEOPTS=”-j<2*#ofCPUs>”
See http://gentoo-wiki.com/Safe_Cflags
Consider “-march=native -O2 -pipe”

Set USE flags

mirrorselect -i -o >> /mnt/gentoo/etc/make.conf mirrorselect -i -r -o >> /mnt/gentoo/etc/make.conf

select locales in /etc/locale.gen
cp /etc/resolve.conf /mnt/gentoo/etc/resolv.conf


mount -t proc none /mnt/gentoo/proc

mount -o rbind /dev /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash

env-update

source /etc/profile
emerge --sync
eselect profile list

eselect profile set #
locale-gen

emerge vim emerge pciutils

Choose a timezone
vim /etc/conf.d/clock


mkdir /etc/portage

cat "sys/gentoo-sources -docs symlink" > /etc/portage/package.use

emerge gentoo-sources

config and install kernel
make && make modules_install && make install


setup /etc/fstab

set /etc/conf.d/hostname setup /etc/conf.d/net rc-update add net.eth0 default

set root passwd

emerge syslog-ng rc-update add syslog-ng default emerge vixie-cron rc-update add vixie-cron default emerge slocate emerge dhcpcd

on x86 emerge grub
on x86_64 emerge grub-static

setup /boot/grub/grub.conf
———————————————————-
default 0 timeout 10 splashimage=(hd0,0)/grub/splash.xpm.gz


title=Gentoo Linux Newest

root (hd0,0)

kernel /vmlinuz root=/dev/hda3 video=vesafb:mtrr:3,ywrap,1024x768-32@85

title=Gentoo Linux Previous root (hd0,0) kernel /vmlinuz.old root=/dev/hda3 init=/bin/bb
———————————————————–
grub --no-floppy grub> root (hd0,0) (Specify where your /boot partition resides) grub> setup (hd0) (Install GRUB in the MBR) grub> quit (Exit the GRUB shell)

exit cd umount /mnt/gentoo/boot /mnt/gentoo/dev /mnt/gentoo/proc /mnt/gentoo reboot

Modifying only directory permissions using find

Josh Perry — Sat, 19 Dec 2009 02:53:35 +0000

I recently went through my web directories and updated the permissions to be more inline with recommended security practices. When setting web file permissions in Linux you want to set execute permissions on a directory to allow listing and traversal, but you don’t want to set execute permissions on the files for security reasons.

Doing this directory by directory by hand would have been a pain so I decided to get creative. Well as far as script-fu goes this is pretty tame(lame?) but it worked well for me.

To set the permissions on a the /var/www/ folder and all sub-folders of use this command:
find /var/www -type d -print0 | xargs -0 chmod -v 755

Conversely if you only want to update the permissions on only files you can use the same command but substitute -type f for -type d.

The -print0 argument will make find null terminate each of the paths instead of newline terminating them and the -0 argument tells xargs to expect argument terminated by null instead of whitespace. Without these options xargs would misinterpret pathnames with spaces as multiple arguments.

Curiously Nerdy » Linux

Gentoo Installation Bullet-point List

Modifying only directory permissions using find