cemu from home:adriweb:CEmu project

Selecionar o Seu Sistema Operativo

Para Arch Linux, edite /etc/pacman.conf e adicione o seguinte (note que a ordem dos repositórios em pacman.conf é importante, pois o pacman descarrega sempre o primeiro pacote encontrado):
[home_adriweb_CEmu_Arch]
Server = https://download.opensuse.org/repositories/home:/adriweb:/CEmu/Arch/$arch
Depois execute o seguinte como root
key=$(curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Arch/$(uname -m)/home_adriweb_CEmu_Arch.key)
fingerprint=$(gpg --quiet --with-colons --import-options show-only --import --fingerprint <<< "${key}" | awk -F: '$1 == "fpr" { print $10 }')

pacman-key --init
pacman-key --add - <<< "${key}"
pacman-key --lsign-key "${fingerprint}"

pacman -Sy home_adriweb_CEmu_Arch/cemu
Para Raspbian 9.0 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Raspbian_9.0/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Raspbian_9.0/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian Unstable corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_Unstable/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_Unstable/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian Testing corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_Testing/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_Testing/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian 9.0 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_9.0/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_9.0/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian 12 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_12/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_12/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian 11 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_11/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_11/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Debian 10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Debian_10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Debian_10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Fedora Rawhide corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_Rawhide/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 40 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_40/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 38 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_38/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 33 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_33/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 32 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_32/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 31 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_31/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 30 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_30/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 29 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_29/home:adriweb:CEmu.repo
dnf install cemu
Para Fedora 28 corra o seguinte como root:
dnf config-manager --add-repo https://download.opensuse.org/repositories/home:adriweb:CEmu/Fedora_28/home:adriweb:CEmu.repo
dnf install cemu
Para openSUSE Tumbleweed corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Tumbleweed/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 42.3 Ports corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_42.3_Ports/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 42.3 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_42.3/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 42.2 Ports corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_42.2_Ports/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 42.2 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_42.2/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 15.2 PowerPC corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_15.2_PowerPC/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 15.2 ARM corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_15.2_ARM/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 15.1 ARM corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_15.1_ARM/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Leap 15.0 Ports corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Leap_15.0_Ports/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Factory zSystems corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Factory_zSystems/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Factory RISCV corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Factory_RISCV/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Factory PowerPC corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Factory_PowerPC/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para openSUSE Factory ARM corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/openSUSE_Factory_ARM/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para 15.6 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/15.6/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para 15.5 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/15.5/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para 15.4 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/15.4/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu

Pacotes para openSUSE Leap 42.2:

Pacotes para openSUSE Leap 15.2 PowerPC:

Pacotes para openSUSE Factory zSystems:

Pacotes para openSUSE Factory RISCV:

Pacotes para openSUSE Factory PowerPC:

Para Raspbian 12 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Raspbian_12/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Raspbian_12/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Raspbian 11 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Raspbian_11/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Raspbian_11/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para Raspbian 10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/Raspbian_10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/Raspbian_10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu

Pacotes para Raspbian 12:

Para SLE 15 SP3 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/SLE_15_SP3/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para SLE 15 SP2 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/SLE_15_SP2/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para SLE 15 SP1 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:adriweb:CEmu/SLE_15_SP1/home:adriweb:CEmu.repo
zypper refresh
zypper install cemu
Para xUbuntu 24.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_24.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_24.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 23.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_23.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_23.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 23.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_23.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_23.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 22.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_22.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_22.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 22.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_22.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_22.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 21.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_21.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_21.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 21.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_21.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_21.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 20.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_20.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_20.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 20.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_20.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_20.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 19.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_19.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_19.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 19.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_19.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_19.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 18.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_18.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_18.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 18.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_18.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_18.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 17.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_17.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_17.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 17.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_17.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_17.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 16.10 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_16.10/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_16.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu
Para xUbuntu 16.04 corra o seguinte:
Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).
echo 'deb http://download.opensuse.org/repositories/home:/adriweb:/CEmu/xUbuntu_16.04/ /' | sudo tee /etc/apt/sources.list.d/home:adriweb:CEmu.list
curl -fsSL https://download.opensuse.org/repositories/home:adriweb:CEmu/xUbuntu_16.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_adriweb_CEmu.gpg > /dev/null
sudo apt update
sudo apt install cemu