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commit 9681d52fbf67bd44d77691cb2d68c83fa4793114 Author: Sven Eckelmann sven@narfation.org Date: Sat Sep 4 00:26:56 2021 +0000

doc: open-mesh/Kernel_hacking_Debian_image: use features from Debian Bullseye and switch to virtio-scsi

9681d52fbf67bd44d77691cb2d68c83fa4793114 open-mesh/Kernel_hacking_Debian_image.textile | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/open-mesh/Kernel_hacking_Debian_image.textile b/open-mesh/Kernel_hacking_Debian_image.textile index 4a19e549..1e9ec23b 100644 --- a/open-mesh/Kernel_hacking_Debian_image.textile +++ b/open-mesh/Kernel_hacking_Debian_image.textile @@ -28,6 +28,7 @@ sudo systemd-nspawn -D debian apt update sudo systemd-nspawn -D debian apt install --no-install-recommends build-essential vim openssh-server less \ pkg-config libnl-3-dev libnl-genl-3-dev libcap-dev tcpdump rng-tools5 \ trace-cmd flex bison libelf-dev libdw-dev binutils-dev libunwind-dev libssl-dev libslang2-dev liblzma-dev libperl-dev +sudo systemd-nspawn -D debian systemctl enable fstrim.timer

sudo mkdir debian/root/.ssh/ ssh-add -L | sudo tee debian/root/.ssh/authorized_keys @@ -55,17 +56,19 @@ sudo chmod a+x debian/etc/rc.local sudo sed -i 's/^root:[^:]*:/root::/' debian/etc/shadow

## optionally: allow ssh logins without passwords -# sudo sed -i 's/^#PermitRootLogin.*/PermitRootLogin yes/' debian/etc/ssh/sshd_config -# sudo sed -i 's/^#PermitEmptyPasswords.*/PermitEmptyPasswords yes/' debian/etc/ssh/sshd_config -# sudo sed -i 's/^UsePAM.*/UsePAM no/' debian/etc/ssh/sshd_config +#cat << "EOF" | sudo tee debian/etc/ssh/sshd_config.d/local.conf +#PermitRootLogin yes +#PermitEmptyPasswords yes +#UsePAM no +#EOF

## optionally: enable autologin for user root #sudo mkdir debian/etc/systemd/system/serial-getty@hvc0.service.d/ -#sudo sh -c 'cat > debian/etc/systemd/system/serial-getty@hvc0.service.d/autologin.conf << EOF +#cat << "EOF" | sudo tee debian/etc/systemd/system/serial-getty@hvc0.service.d/autologin.conf #[Service] #ExecStart= #ExecStart=-/sbin/agetty --autologin root -s %I 115200,38400,9600 vt102 -#EOF' +#EOF

sudo sh -c 'echo '''PATH="/host/batctl/:$PATH"''' >> debian/etc/profile' sudo rm debian/var/cache/apt/archives/*.deb @@ -115,6 +118,8 @@ CONFIG_VSOCKETS=y CONFIG_VIRTIO_VSOCKETS=y CONFIG_IOMMU_SUPPORT=y CONFIG_VIRTIO_IOMMU=y +CONFIG_SCSI_VIRTIO=y +CONFIG_BLK_DEV_SD=y CONFIG_CRC16=y CONFIG_LIBCRC32C=y CONFIG_DEBUG_FS=y @@ -202,7 +207,6 @@ CONFIG_GDB_SCRIPTS=y CONFIG_READABLE_ASM=y CONFIG_STACK_VALIDATION=y CONFIG_WQ_WATCHDOG=y -CONFIG_DEBUG_KOBJECT_RELEASE=y CONFIG_DEBUG_WQ_FORCE_RR_CPU=y CONFIG_DEBUG_SECTION_MISMATCH=y CONFIG_UNWINDER_ORC=y @@ -231,6 +235,9 @@ CONFIG_UBSAN_SANITIZE_ALL=y CONFIG_UBSAN=y CONFIG_KCSAN=y CONFIG_KFENCE=y + +# avoid that boot is delayed much by the delayed kobject release code +CONFIG_DEBUG_KOBJECT_RELEASE=n EOF

make allnoconfig @@ -281,7 +288,7 @@ The BASE_IMG is of course no longer the same because a new image "debian.img" wa BASE_IMG=debian.img BOOTARGS+=("-bios" "qboot/build/bios.bin") BOOTARGS+=("-kernel" "linux-next/arch/x86/boot/bzImage") -BOOTARGS+=("-append" "root=/dev/vda rw console=hvc0 nokaslr tsc=reliable no_timer_check noreplace-smp rootfstype=ext4 rcupdate.rcu_expedited=1 reboot=t pci=lastbus=0 i8042.direct=1 i8042.dumbkbd=1 i8042.nopnp=1 i8042.noaux=1 no_hash_pointers") +BOOTARGS+=("-append" "root=/dev/sda rw console=hvc0 nokaslr tsc=reliable no_timer_check noreplace-smp rootfstype=ext4 rcupdate.rcu_expedited=1 reboot=t pci=lastbus=0 i8042.direct=1 i8042.dumbkbd=1 i8042.nopnp=1 i8042.noaux=1 no_hash_pointers") BOOTARGS+=("-device" "virtconsole,chardev=charconsole0,id=console0") </code></pre>