Bzimage and rootfs.ext2
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This is the first time I'm trying to build the kernel from scratch: I'm new on this topic so excuse me for the dumb question.
What is the difference between bzimage and rootfs.ext2?
I'm using buildroot and I obtained the above output: as far as I know, bzimage is the compressed kernel image and rootfs.ext2 the filesystem.
However I'm using QEMU with the following commands:
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage -
drive file=./rootfs.ext2,if=virtio,format=raw
or
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage
The outputs seems the same: I see the whole filesystem with an ls command and the same files: can you explain to me the differences between the two outputs?
kernel
edited Jul 29 at 22:35
slm♦
232k65479649
asked Jul 29 at 17:30
andrew
1
add a comment |Â
up vote
0
down vote
favorite
This is the first time I'm trying to build the kernel from scratch: I'm new on this topic so excuse me for the dumb question.
What is the difference between bzimage and rootfs.ext2?
I'm using buildroot and I obtained the above output: as far as I know, bzimage is the compressed kernel image and rootfs.ext2 the filesystem.
However I'm using QEMU with the following commands:
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage -
drive file=./rootfs.ext2,if=virtio,format=raw
or
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage
The outputs seems the same: I see the whole filesystem with an ls command and the same files: can you explain to me the differences between the two outputs?
kernel
edited Jul 29 at 22:35
slm♦
232k65479649
asked Jul 29 at 17:30
andrew
1
both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
This is the first time I'm trying to build the kernel from scratch: I'm new on this topic so excuse me for the dumb question.
What is the difference between bzimage and rootfs.ext2?
I'm using buildroot and I obtained the above output: as far as I know, bzimage is the compressed kernel image and rootfs.ext2 the filesystem.
However I'm using QEMU with the following commands:
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage -
drive file=./rootfs.ext2,if=virtio,format=raw
or
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage
The outputs seems the same: I see the whole filesystem with an ls command and the same files: can you explain to me the differences between the two outputs?
kernel
edited Jul 29 at 22:35
slm♦
232k65479649
asked Jul 29 at 17:30
andrew
1
This is the first time I'm trying to build the kernel from scratch: I'm new on this topic so excuse me for the dumb question.
What is the difference between bzimage and rootfs.ext2?
I'm using buildroot and I obtained the above output: as far as I know, bzimage is the compressed kernel image and rootfs.ext2 the filesystem.
However I'm using QEMU with the following commands:
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage -
drive file=./rootfs.ext2,if=virtio,format=raw
or
$ qemu-system-i386 -enable-kvm -M pc -kernel ./bzImage
The outputs seems the same: I see the whole filesystem with an ls command and the same files: can you explain to me the differences between the two outputs?
kernel
edited Jul 29 at 22:35
slm♦
232k65479649
asked Jul 29 at 17:30
andrew
1
edited Jul 29 at 22:35
slm♦
232k65479649
edited Jul 29 at 22:35
slm♦
232k65479649
edited Jul 29 at 22:35
slm♦
232k65479649
232k65479649
asked Jul 29 at 17:30
andrew
1
asked Jul 29 at 17:30
andrew
1
asked Jul 29 at 17:30
andrew
1
1
both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59
add a comment |Â
both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59
both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59
add a comment |Â
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both commands seem to be invoking bzImage
– Rui F Ribeiro
Jul 29 at 17:54
True...the second one invokes only bzimage and the results are exactly the same to the first one
– andrew
Jul 29 at 17:59
I noticed...it seems your 2nd paragraph needs some working.
– Rui F Ribeiro
Jul 29 at 17:59