Aren't all ISO image files read-only, since the ISO 9660 filesystem used to mount them is read-only?I've downloaded an .iso image that is read only.
Possibly a misconfigured BIOS boot order or settings?Thus, when I burn it on a dvd, it will not boot my pc.
You would want to mount the image somewhere and copy its contents to another directory. After changing what you need inside that directory, create a new ISO from it for burning to another DVD.Is there a procedure to change it or is the read/only image none changeable except from the original source?
It may not be that simple. If it's a FreeBSD boot image for CD or DVD, looking at
I've read that elsewhere Alain, but I can not get it to work.You can mount an .iso with loopback "mdconfig", then "mount -t cd9660" then you can use read write, add packages etc ...
For .img i'm not so certain ...
mdconfig -o noreadonly -S 2048 -u 7 -f play.iso mdconfig -l -u7
mount -t cd9660 -o w ...nor
mount_cd9660 -o rw ...succeed, despite the example for the Photo-CD in mount_cd9660(8)
Thanks, I have, many times, set my BIOS to select only the cd/dvd drive to no avail. (I'm assuming the FN means function keys) I tried that many times too.If your hard drive is set as the first boot device, the dvd will not boot the installer/ live dvd
It has nothing to do with the ISO being read only. And you can hit a FN key to select boot device during boot.
1. xfburn (mate)It's hard to say what the problem is unless you post more info. (what tool you used to burn the dvd, what .iso image you used, did you try burning a fresh dvd and booting from that? etc.) You can get bad CD/DVDs in a batch, so that might be why it's not booting. Did you try burning the image to one or more fresh dvds? You have to post more info here because it could be a number of things why your dvd isn't booting.
Yes, any of my .iso disk still will boot. Those .iso listed in #11 simply will not boot. Nevertheless, when burning those with xfburn the process is carried out as if successful. But, that does not mean that the burn actually did burn it; I'm assuming. I'm going to shut down now and install the new ASUS drive and see if that will make any difference.First: Can you boot any other disc? If so, there's probably an issue with how it was burnt, which can extend to burning an image that was corrupted on download.
4. dban-2.3.0_i586.iso also tried ADRIANE-KNOPPIX_V7.2.0bootonly-2013-07-28-EN.iso and a few other .iso
Thanks for your thoughts. I just carried out your idea with a new CD-RW 700mg with absolutely the same results. No Boot. Have some domestic duties now - So talk with you later.You are burning very small CD .iso images to DVDs. That knoppix .iso is only 7.7MB. Why waste a DVD for that? Try burning live CD images to CDs like they were intended. Even though the dvd might burn successfully, it doesn't really make sense to do what you are doing. I'm guessing it's some type of compatibility / formatting issue that when your computer reads from the dvd drive, it's expecting to boot a cd image off a CD drive, not a dvd drive.. and this is where you are having problems. Try burning to CDs and see what happens.
I last used THAT in 2015, I think. IIRC, the quality of the disc matters more than whether it's CD-R or CD-RW. If you have something brand-new, it shouldn't matter which one you use. Basically, have a good, bootable ISO file first, and then burn it correctly.What about on a CD-R disc ? IIRC I had some issues booting a live cd when I burned it to a cd-rw in the past.
wget https://download.freebsd.org/releases/amd64/amd64/ISO-IMAGES/13.1/FreeBSD-13.1-RELEASE-amd64-dvd1.iso.xz unxz FreeBSD-13.1-RELEASE-amd64-dvd1.iso.xz mdconfig -a -t vnode -f FreeBSD-13.1-RELEASE-amd64-dvd1.iso gdisk -l /dev/md1 mkdir /mnt/md1p2 mount -t msdosfs /dev/md1p2 /mnt/md1p2 # read-write