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Renamed notes to fit categories and be easier to find later: blog, config, howto

blog - fun with ISOs.md

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+# All About ISO's
+
+## Create ISO from DVD
+
+Get the info of the cd/dvd you're copying.
+
+```shell
+isoinfo -d -i /dev/sr0 | grep -i -E 'block size|volume size'
+```
+
+Sample Output:
+
+```shell
+Logical block size is: 2048
+Volume size is: 2264834
+```
+
+We use the Logical block size for the `bs=` variable and Volume size for the COUNT=
+
+use DD to copy the DVD to an iso:
+
+```shell
+dd if=/dev/sr0 of=/mnt/incoming/test.iso bs=2048 count=2264834
+```
+
+Sample Output:
+
+```shell
+2264834+0 records in
+2264834+0 records out
+4638380032 bytes (4.6 GB, 4.3 GiB) copied, 373.405 s, 12.4 MB/s
+```
+
+### Test the image against the actual DVD
+
+Get checksum of DVD and newly created image
+
+Image
+
+```shell
+md5sum /mnt/incoming/test.iso
+```
+
+Sample Output:
+
+```shell
+d3a2cdd58b8c9ade05786526a4a8eae2 /mnt/incoming/test.iso
+```
+
+DVD
+
+```shell
+md5sum /dev/sr0
+```
+
+Sample Output:
+
+```shell
+d3a2cdd58b8c9ade05786526a4a8eae2 /dev/sr0
+```
+
+## Create ISO from files/directories
+
+Examples
+
+```shell
+mkisofs -J -l -R -V "eBooks" -iso-level 4 -o /tmp/eBooks.iso ~/ownCloud/calibre-library/
+
+mkisofs -allow-lowercase -R -V "eBooks" -iso-level 4 -o /tmp/eBooks.iso /mnt/calibre-library
+```
+
+## Mount ISO Image
+
+```shell
+mount -o loop -t iso9660 /tmp/CalibreLibrary2018.iso /tmp/OldLibrary
+```