mkiso fails to see file that is actually there

moob8 · 07-30-2008, 08:39 PM

Instead of a long lengthy explanation of the problem ...

Code:

root@darkstar root # mkisofs -v -V "TORITEST" -b floopy_boot.img -o
a_cd_image.uso temp
mkisofs 2.01.01a23 (i686-pc-linux-gnu)
Scanning temp
Writing:   Initial Padblock                        Start Block 0
Done with: Initial Padblock                        Block(s)    16
Writing:   Primary Volume Descriptor               Start Block 16
Done with: Primary Volume Descriptor               Block(s)    1
Writing:   Eltorito Volume Descriptor              Start Block 17
mkisofs: Uh oh, I cant find the boot image 'floopy_boot.img' !
root@darkstar root # ls -l floopy_boot.img
-r--r--r-- 1 root root 1474560 2008-07-30 21:25 floopy_boot.img
root@darkstar root #

temp is a directory.

So, is mkisofs brain dead or is there a --force-it-to-see-the-file-that-is-right-there flag undocumented in the man page?

Thanks in advance.

storkus · 07-31-2008, 05:04 AM

A couple of ideas: maybe mkisofs expects the file in a certain directory, so try using an absolute path. The other idea is that, if this image is the executable image, it expects it to be marked executable.

Mike

fotoguy · 07-31-2008, 07:14 PM

By having temp at the end of the command, mkisofs will look for the floppy.img in the temp directory, Try putting a dot at the end of the command rather than using the temp. The directory you specify will be used as the root of the iso image. All paths specified in the command will be relative from the root of the iso. You can put the iso to the temp directory

Code:

mkisofs -v -V "TORITEST" -b floopy_boot.img -o temp/a_cd_image.uso .

moob8 · 07-31-2008, 09:49 PM

Quote:

Originally Posted by fotoguy

By having temp at the end of the command, mkisofs will look for the floppy.img in the temp directory, Try putting a dot at the end of the command rather than using the temp. The directory you specify will be used as the root of the iso image. All paths specified in the command will be relative from the root of the iso. You can put the iso to the temp directory

Code:

mkisofs -v -V "TORITEST" -b floopy_boot.img -o temp/a_cd_image.uso .

I'm not entirely sure I understand ... however I tried your command line, and that worked: mkisofs ran without complaints. Thanks!

storkus · 08-03-2008, 02:31 AM

What he means is the difference between relative (referenced from your current working directory or $PWD) and absolute (such as /usr/src/linux or /tmp) paths. Instead, when you put in "temp" at the end of the mkisofs command you were telling mkisofs to put your image there. By using ".", which is a synonym for $PWD you tell it to use your current directory instead.

If I knew the command syntax for mkisofs I would have spotted that myself, but it's one of the very few utilites I'm scared to use directly because of all the options!

(I used to use xcdroast, now I use k3b.)

Mike

fotoguy · 08-03-2008, 03:40 AM

Quote:

Originally Posted by moob8

I'm not entirely sure I understand ... however I tried your command line, and that worked: mkisofs ran without complaints. Thanks!

Glad it all works for you, and thanks storkus for the explanation.