Re: FC2 - anaconda - bootdisk creation

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On Sat, 19 Jun 2004 00:19:48 -0400
Jim Cornette <jim-cornette@xxxxxxxxxxxxx> wrote:


> > 
> Does this mean that my system comes up with the exact value 
> co-incidentally? Or does this mean that mkbootdisk always tries to make 
> the image reflect the size of a floppy? Would a larger than 1474560 
> vmlinuz and initrd fail or cut off the end of the file, post 1474560?

The image will be exactly floppy size even if it is not completely full.
You can change the size with the --size option.   Take a look at

# man mkbootdisk


> 
> -rw-r--r--   1 root root  190569 Jun 14 21:07 initrd-2.6.6-1.435.img
> -rw-r--r--   1 root root 1203768 Jun 14 09:23 vmlinuz-2.6.6-1.435
> 
> 1203768 + 190569 = 1394337
> 
> I did the below command and ended up with a larger image.
> 
> I burned the disk with the newer iso image, in order to see what was on 
> the disk. This had the /isolinux directory and the trans.tbl file.

As an aside, you don't have to burn these images to see what is 
inside them.   You can mount them using the "loopback" interface.  
Here is an example:

# mount /tmp/testboot.iso /mnt/cdrom -oloop

This would mount the image just like it was burned and sitting
in the cdrom drive.

> 
> mkbootdisk 2.6.6-1.435 --iso --device /tmp/testboot.iso
> 
> Size of boot image is 4 sectors -> No emulation
> [root@jcsevern root]# ls -la /tmp/testboot.iso
> -rw-r--r--  1 root root 1794048 Jun 19 00:00 /tmp/testboot.iso
> 
> Now I have a boot iso! I don't have a built in floppy on this laptop.
> 

Sean



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