xref: /aosp_15_r20/external/toybox/mkroot/README.root (revision cf5a6c84e2b8763fc1a7db14496fd4742913b199)
1Use ./run-qemu.sh to boot system image to a shell prompt, "exit" when done.
2
3Additional arguments to run-qemu.sh are QEMU arguments,
4$KARGS contains additional linux kernel arguments. For example:
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6  KARGS=quiet ./run-qemu.sh -hda docs/linux-fullconfig
7  # cat /dev/?da
8  # exit
9
10To extract the root filesystem from cpio.gz and chroot into it
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12  ( mkdir fs && cd fs && zcat ../initramfs.cpio.gz | cpio -i -d -H newc )
13  chroot fs /init
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15To recreate the initramfs.cpio.gz from fs directory
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17  ( cd fs && find . -printf '%P\n' | cpio -o -H newc -R +0:+0 | gzip ) \
18    > initramfs.cpio.gz
19