Hi,

I have CentOS 5.5 Operating System files copied from the DVD, it's not a ISO image. My Centos dvd is not working so, I would like to make bootable image and burn it on a DVD from the files and install CentOS on other machine.

I have tried creating ISO image using mkisofs command but, it is not booting. Can someone help me with this.

example would really helpful.


Thanks....

Hello and Welcome to LinuxQuestions,

What files did you copy? The entire DVD? If so, did you also copy over the two hidden files .treeinfo and .discinfo? What mkisofs command parameters are you using? And also very important, what are the errors you get?

Kind regards,

Eric

Hi,

Thanks for your response. I have copied the whole dvd to a folder.

The command i am using is as below :

mkisofs -R -J -T -v -V "CentOS_5.3_x86-64" -no-emul-boot -boot-load-size 4 -boot-info-table -b centos5.5-x86_64/isolinux/isolinux.bin -c centos5.5-x86_64/isolinux/boot.cat -o CentOS-5.5-x86_64.iso centos5.5-x86_64/

Error :

I: -input-charset not specified, using utf-8 (detected in locale settings)
genisoimage 1.1.10 (Linux)
Scanning centos5.5-x86_64/
Scanning centos5.5-x86_64/images
Scanning centos5.5-x86_64/images/xen
Excluded: centos5.5-x86_64/images/xen/TRANS.TBL
Scanning centos5.5-x86_64/images/pxeboot
Excluded: centos5.5-x86_64/images/pxeboot/TRANS.TBL
Excluded: centos5.5-x86_64/images/TRANS.TBL
Scanning centos5.5-x86_64/NOTES
Excluded: centos5.5-x86_64/NOTES/TRANS.TBL
Scanning centos5.5-x86_64/cache
Scanning centos5.5-x86_64/CentOS
Excluded: centos5.5-x86_64/CentOS/TRANS.TBL
Scanning centos5.5-x86_64/isolinux
Excluded: centos5.5-x86_64/isolinux/TRANS.TBL
Scanning centos5.5-x86_64/repodata
Excluded: centos5.5-x86_64/repodata/TRANS.TBL
Excluded: centos5.5-x86_64/TRANS.TBL
call to search_tree_file with an absolute path, stripping
initial path separator. Hope this was intended...
genisoimage: Uh oh, I cant find the boot catalog directory 'centos5.5-x86_64/isolinux'!

Thanks....

Hi,

In what directory are you when executing that command?

Kind regards,

Eric

Wonder if it wouldn't be easier to get the Centos CD to boot up and tell it to look at the files?

According to your mkisofs command, that folder would be centos5.5-x86_64/, so you would need to run it from the directory immediately above.
Check the isolinux folder to see if you actually have a boot.cat file. If you run the command from the correct directory, you should not need the "centos5.5-x86_64" before isolinux/isolinux.bin and isolinux/boot.cat.

Wouldn't it be easier to just download & burn a new image from the Centos site?