Hello,
I am using the X86 disk image from:
http://gem5.org/Download
I am trying to get full system mode working, so I use an R script as a
benchmark.
This requires me to edit the disk image by:
1. Copying over my R scripts
2. Installing R
3. Installing Rscript
I can easily copy over my R scripts by just copying them over to the mounted
disk image.
However, installing R and Rscript is not so easy. The disk image does not have
enough room to install them, so I have been trying to expand the disk image to
no success. I get the following for this disk image.
> e2fsck -f linux-x86.img
e2fsck 1.44.1 (24-Mar-2018)
ext2fs_open2: Bad magic number in super-block
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open linux-x86.img
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
Found a dos partition table in linux-x86.img
________
I am able to increase the disk size with:
> sudo dd if=/dev/zero bs=1M count=400 >> linux-x86.img
But because of this superblock issue resize2fs does not work.
Has anyone had any luck expanding the X86 disk image for gem5? It seems strange
the disk image from the gem5 source has this superblock issue.
Thank you,
Justin
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