I am building a custom Alpine image based on isolinux. Basically, I am squashing rootfs, and mounting it as overlayfs.
Bootloader does its job fine, kernel loads, but I am stuck at initramfs. Let say I have the following:
#!/bin/sh export PATH=/sbin:/usr/sbin:/bin:/usr/bin /bin/busybox --install -s rescue_shell() { echo "Something went wrong. Dropping you to a shell." #/bin/busybox --install -s /bin/sh || exec /bin/busybox sh } mount -t sysfs sysfs /sys mount -t proc proc /proc mkdir -p /dev/pts mount -t devtmpfs -o exec,nosuid,mode=0755,size=2M devtmpfs /dev 2>/dev/null \ || mount -t tmpfs -o exec,nosuid,mode=0755,size=2M tmpfs /dev [ -c /dev/ptmx ] || mknod -m 666 /dev/ptmx c 5 2 [ -d /dev/pts ] || mkdir -m 755 /dev/pts mount -t devpts -o gid=5,mode=0620,noexec,nosuid devpts /dev/pts # shared memory area (later system will need it) [ -d /dev/shm ] || mkdir /dev/shm mount -t tmpfs -o nodev,nosuid,noexec shm /dev/shm /bin/sh # other code left for simplicity So once I enters /bin/sh, I don't have any modules loaded, especially I am meaning for block devices, /dev/sda, /dev/sr0, which I need to mount and then extract squashed image, and mount overlay.
Listing /proc/partitions gives me only ram[0-15] devices, which make sense since after boot it's loaded into RAM.
So, my question would be, is there any way that devices gets probed based on available hardware? I have tried with mdev as well, but still can not get my block devices. Proper mdev.conf is there, and tests are performed in VirtualBox. Thank you.
