User:Egberts/sandbox

Sometimes when I press Enter, nothing happens.

I forget that amd64 is often used instead of x86_64.

Table

Printer model	Printer driver	Printer?	Scanner?	Remarks
DCP-J785DW	RPMs from Brother web site	Works!	Works!	Connected by USB

    to use the full version of the file

alt text

to use a 200 pixel wide rendition in a box in the left margin with 'alt text' as description

   Media:IconHome.png for directly linking to the file without displaying the file

RootCmd

To access the guest disk from the host (and e.g. chroot into the guest), use a "Network Block Device":

root # modprobe nbd max_part=16

root # qemu-nbd -c /dev/nbd0 Gentoo-VM.img

root # mount /dev/nbd0p4 /mnt/gentoo

Make any changes required and clean up:

root # umount /mnt/gentoo

root # qemu-nbd -d /dev/nbd0

Assuming that there exists a bridge called br0 on the machine, the following configuration exposes the image to the LAN.

FileBox

FILE start_Gentoo_VM.sh

#!/bin/bash
exec qemu-system-x86_64 -enable-kvm \
        -cpu host \
        -drive file=Gentoo-VM.img,if=virtio \
        -netdev bridge,id=net0,br=br0 \
        -device virtio-net-pci,netdev=net0 \
        -device virtio-rng-pci \
        -m 512M \
        -smp 2 \
        -nographic \
        -name "Gentoo VM" \
        $@

root #./start_Gentoo_VM.sh -boot d -cdrom install-amd64-minimal-20120621.iso

Boxen Section

FILE {{{filename}}}FileBox example

Some text/code.

FILE {{{filename}}}FileBox example2

Some text/code.

Warning

Warning
This is some warning given here

Tip
some tip given.

Note

Note
some note content goes here.

Important

Important
some important content goes here.

ContentBox

Heading

Text

Cmd

user $grub-install /dev/vda

CodeBox

CODE CodeBox example with title

#!/bin/bash echo "Hello, world!"

In GRUB the parameters can be added to the variable GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub.

CODE Kernel command-line

linux root=/dev/vda3 nomodule rw

Then run:

root #grub-mkconfig -o /boot/grub/grub.cfg

GenericCmd

command output
  this
    that

KernelBox

KERNEL KernelBox with title example

Some long kernel options ...

Cmd

user $ls -l /sys

 total 0 drwxr-xr-x 2 root root 0 Jun 28 14:42 block drwxr-xr-x 30 root root 0 May 31 13:51 bus drwxr-xr-x 68 root root 0 May 31 13:51 class drwxr-xr-x 4 root root 0 May 31 13:51 dev drwxr-xr-x 23 root root 0 May 31 13:51 devices drwxr-xr-x 6 root root 0 May 31 13:51 firmware drwxr-xr-x 14 root root 0 May 31 13:51 fs drwxr-xr-x 11 root root 0 May 31 13:51 kernel drwxr-xr-x 281 root root 0 May 31 13:51 module drwxr-xr-x 2 root root 0 Jun 28 14:42 power 

ls -l /

total 4
drwxr-xr-x 1 root root  970 Oct 26 22:29 bin
drwxr-xr-x 1 root root   10 Oct 26 18:29 boot
drwxr-xr-x 1 root root 1686 Oct 26 18:31 dev
drwxr-xr-x 1 root root 1276 Oct 26 22:32 etc
drwxr-xr-x 1 root root   10 Oct 26 18:29 home
lrwxrwxrwx 1 root root    5 Oct 26 21:09 lib -> lib64
drwxr-xr-x 1 root root 1366 Oct 26 21:09 lib32
drwxr-xr-x 1 root root 3490 Oct 26 22:29 lib64
drwxr-xr-x 1 root root   10 Oct 26 18:29 media
drwxr-xr-x 1 root root   10 Oct 26 18:29 mnt
drwxr-xr-x 1 root root   10 Oct 26 18:29 opt
drwxr-xr-x 1 root root    0 Oct 26 18:16 proc
drwx------ 1 root root   10 Oct 26 18:29 root
drwxr-xr-x 1 root root   22 Oct 26 22:28 run
drwxr-xr-x 1 root root 1914 Oct 26 22:32 sbin
drwxr-xr-x 1 root root   10 Oct 26 18:29 sys
drwxrwxrwt 1 root root   10 Oct 26 22:32 tmp
drwxr-xr-x 1 root root  138 Oct 26 22:32 usr
drwxr-xr-x 1 root root   66 Oct 26 18:29 var

root #ls -l /sys

 total 0 drwxr-xr-x 2 root root 0 Jun 28 14:42 block drwxr-xr-x 30 root root 0 May 31 13:51 bus drwxr-xr-x 68 root root 0 May 31 13:51 class drwxr-xr-x 4 root root 0 May 31 13:51 dev drwxr-xr-x 23 root root 0 May 31 13:51 devices drwxr-xr-x 6 root root 0 May 31 13:51 firmware drwxr-xr-x 14 root root 0 May 31 13:51 fs drwxr-xr-x 11 root root 0 May 31 13:51 kernel drwxr-xr-x 281 root root 0 May 31 13:51 module drwxr-xr-x 2 root root 0 Jun 28 14:42 power 

CODE CodeBox example with title

#!/bin/bash echo "Hello, world!"

This sentence offers a hyperlink that will take you back to the Boxen section.

See

See also
Text about associated documentation.

The Main Page — Larry the Cow beckons you to explore the Gentoo wiki!

Path

/etc/fstab

KERNEL Enable tmpfs support

File systems  --->
     Pseudo filesystems  --->
          [*] Tmpfs virtual memory file system support (former shm fs)
          [ ] Optional drivers

Manpage

man1/emerge.1.html Man page