[BL] Booting from a ppa zip drive
davidjmoberg at lycos.com
Sat Mar 12 14:41:11 EST 2005
----- Original Message -----
From: "sindi keesan" <keesan at sdf.lonestar.org>
> >> I have not yet learned to resize a loop.
> > There are two ways, either:
> > dd if=/dev/zero of=newfs.img bs=1024k count=100 # replace count with desired
> > # size in MB
> > mke2fs newfs.img # say yes to the prompt
> > mount -o loop newfs.img /hd
> > mount -o loop fs.img /fd
> > cp -a /fd/* /hd
> > umount /hd
> > umount /fd
> Or mount to /mnt instead of /fd?
Yes. Just remember to replace every instance of fd with mnt.
> > That's your choice. Using fs.img makes it much easier to add files
> > which can be read by DOS.
> How would I read a file in DOS from fs.img?
I should have said "add files to the DOS filesystem on the zip disk".
> Can I make a newfs.img and copy a larger fs.img to it and retain
> all the files but have less free space? Or can one only copy a
> smaller fs.img to a larger newfs.img? My HD BL3 partition is 200MB
> with about 30MB of files, and I want 50MB of linux on the zip disk.
You can go from large to small. If you have resize2fs, it's even
resize2fs fs.img new_size_in_blocks_goes_here
A block is usually 1 kilobyte.
You then need to trim off the end with dd:
dd if=fs.img of=newfs.img bs=1k count=new_size
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