If the system is plugged into an Ethernet network with a DHCP. The Gentoo minimal installation CD is a bootable image. Installing the Gentoo installation files. From Gentoo Wiki.
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Before we start, we first list what hardware requirements are needed to successfully install Gentoo on a amd64 box. The AMD64 project is a good place to be for more information about Gentoo’s amd64 support.
The Gentoo minimal installation CD is a bootable image which contains a self-sustained Gentoo environment. It allows the user to genhoo Linux from the CD or other installation media. During the boot process the hardware is detected and the appropriate drivers are loaded. The image is maintained by Gentoo developers and allows anyone to install Gentoo if an active Internet connection is available. The instructions further down this chapter target the Minimal Installation CD so might be a bit different.
However, the LiveDVD or any other bootable Linux environment supports getting a root prompt by just invoking sudo su – or sudo -i in a terminal. A stage3 tarball is an archive containing a minimal Gentoo environment, suitable to continue the Gentoo installation using the instructions in this manual.
Previously, the Gentoo Handbook described the installation using one of three stage tarballs. While Gentoo still offers stage1 and stage2 tarballs, the official installation method uses zmd64 stage3 tarball.
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If you are interested in performing a Gentoo installation using a stage1 or stage2 tarball, please read the Gentoo FAQ on How do I install Gentoo using a stage1 or stage2 tarball? Stage files update frequently and are not included on the installation images. The default installation media that Gentoo Linux uses are the minimal installation CDswhich host a bootable, very small Gentoo Linux environment. This environment handboook all the right tools to install Gentoo. Gengoo CD images themselves can be downloaded from the downloads page recommended or by manually browsing to the ISO location on one of the many available mirrors.
Inside this location, the installation media file is the file with the. For instance, take a look at the following listing:. In the above example, the install-amdminimal Amdd64 as can be seen, other related files exist as well:.
Ignore the other files available at this location for now – those will come back when the installation has proceeded further. This verification is usually done in two steps:. On a Microsoft Windows system, chances are low that the right set of tools to verify checksums and cryptographic signatures are in place. To first verify the cryptographic signature, tools such as GPG4Win can be used. After installation, the public keys of the Gentoo Hanbdook Engineering team need to be imported.
The list of keys is available on the signatures page. Once imported, the user can then verify the signature of the. The checksum itself can be verified using the Hashcalc applicationalthough many others exist as well.
Most of handbok time, these tools will show the user the calculated checksum, and the user is requested to verify this checksum with the value that is inside the. With this package installed, the following commands can be used to verify the cryptographic signature of the.
First, download the right set of keys as made available on the signatures page:. Next verify the cryptographic signature of the. To be absolutely certain that everything is valid, verify the handook shown with the fingerprint on the Gentoo signatures page.
With the cryptographic signature validated, next verify the checksum to make sure the downloaded ISO file is not corrupted. For instance, to get the SHA checksum:. In the above output, two SHA checksums are shown – one for the install-amdminimal Only the first checksum is of interest, as it needs to be compared with the calculated SHA checksum which can be generated as follows:. The ISO file needs to be burned on a CD to boot from, and in such a way that its content is burned on the CD, not just the file itself.
Then follow the instructions provided by K3B. Once the installation media is ready, it is time to boot it. Insert the media in the system, reboot, and enter the motherboard’s firmware user interface. The ‘trigger’ amd664 varies depending on the system and motherboard.
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If it is not obvious use an internet search engine and do some research using the motherboard’s model name as the search keyword. Results should be easy to determine. Without this change, the amc64 will most likely reboot to the internal disk device, ignoring the external boot media.
If not yet done, ensure that the installation media is inserted or plugged into the system, and reboot. A boot prompt should be shown. At this screen, Enter will begin the boot process with the default boot options. To boot the installation media with custom boot options, specify a kernel followed by boot options and then hit Enter. At the boot prompt, users get the option of displaying the available kernels F1 and boot options F2. If no choice is made within 15 seconds either displaying information or using a kernel then the installation media will fall handbokk to booting from disk.
This allows installations to reboot and try out their installed environment without the need to remove the CD from the tray something well appreciated for remote installations.
Specifying a kernel was mentioned. On the Minimal installation media, only two predefined kernel boot options are provided. The default amf64 is called gentoo. The other being the -nofb variant; this disables kernel framebuffer support.
Now boot the media, select a kernel if the default gentoo kernel does not suffice and boot options. As an example, we boot the gentoo kernel, with dopcmcia as a kernel parameter:. Next the user will be hzndbook with a boot screen and progress bar.
If no selection is made in 10 seconds the default US keyboard will hentoo accepted and the boot process will continue. Once the boot process completes, the user is automatically logged in to the “Live” Gentoo Linux environment as the root user, the super user.
When the Installation medium boots, it tries to amf64 all the hardware devices and loads the appropriate kernel modules to support the hardware. In the vast majority of cases, it does a very good job.
However, in some cases it may not auto-load the kernel modules needed by the system. If the PCI auto-detection missed some of the system’s hardware, the appropriate kernel modules have to be loaded manually.
Handbook:Main Page – Gentoo Wiki
In the next example the too module which supports certain kinds of network interfaces is loaded:. If other people need access to the installation environment, or there is need to run commands as a non-root user on the installation medium handbok as to chat using irssi without root privileges for security reasonsthen an gentok user account needs to be created and the root password set to a strong password.
To change the root password, use the passwd utility:. To create a user account, first enter their credentials, followed by the account’s password. The useradd and passwd commands are used for these tasks. To switch from the current root user to the newly created user account, use the su command:. To view the Gentoo handbook during the installation, first create a user account as described above.
During the installation, the links command can be used to browse the Gentoo handbook – of course only from the moment that the Internet connection is working.
It may be more efficient for the seasoned Linux enthusiast to use screen to view installation instructions via split panes rather than the multiple TTY method mentioned above. To allow other users to access the system during the installation perhaps to support during an installation, or even do it remotelya user account needs to be created as was documented earlier on and the SSH daemon needs to be started.
To be able to use sshd, the network needs to function properly. Continue with the chapter on Configuring the network. Choosing the right installation medium From Gentoo Wiki.
Note Some target architectures such as armmips hanndbook, and s will not have minimal install CDs. At this time the Gentoo Release Engineering project does not support building. Note This is an optional step and not necessary to install Gentoo Linux. However, it is recommended as it ensures that the downloaded file is not corrupt and has indeed been provided by the Gentoo Infrastructure team.
Important This does not verify that the. That also implies that the checksum should be verified against the values in the. Note If qmd64 log on to the system, they will see a message that the host key for this system needs to be confirmed through what is called a fingerprint.
This behavior is typical and can be expected for initial connections to an SSH server. However, later when the system is set up and someone logs on to the newly created system, the SSH client will warn that the host key has been changed.
This is because the user now logs on to – for SSH – a different server namely the freshly installed Gentoo system rather than the live environment that the installation is currently using. gento
Follow the instructions given on the screen then to replace the host key on the client system. Retrieved from ” https: