From daefa32665c77e78e7708c19095846c3d725b717 Mon Sep 17 00:00:00 2001
From: Andreas Fankhauser hiddenalpha.ch
Date: Sun, 28 Apr 2024 17:03:18 +0200
Subject: Add hint how to create bootable USB from ISO.

---
 doc/note/burncdrom/burncdrom.txt | 28 ++++++++++++++++++++++++++++
 doc/note/burncdrom/growisofs.txt | 20 --------------------
 doc/note/compress/xz.txt         |  5 +++++
 3 files changed, 33 insertions(+), 20 deletions(-)
 create mode 100644 doc/note/burncdrom/burncdrom.txt
 delete mode 100644 doc/note/burncdrom/growisofs.txt
 create mode 100644 doc/note/compress/xz.txt

diff --git a/doc/note/burncdrom/burncdrom.txt b/doc/note/burncdrom/burncdrom.txt
new file mode 100644
index 0000000..1b98f6a
--- /dev/null
+++ b/doc/note/burncdrom/burncdrom.txt
@@ -0,0 +1,28 @@
+
+How to handle CD/DVD burning
+============================
+
+## Install growisofs
+
+  apt install genisoimage
+
+
+## Burn from ISO to optical media
+
+growisofs -dvd-compat -Z /dev/srX=path/to/my.iso
+
+
+## Get checksum of disc
+
+- Use isoinfo (from genisoimage pkg) to get size params.
+- Use dd parameterized by previous output.
+
+  isoinfo -d dev=/dev/srX
+  dd bs=${Logical block size} count=${Volume size} if=/dev/srX | md5sum -b
+
+
+## Create bootable USB from ISO
+
+  dd bs=4M if=path/to/my.iso of=/dev/sdX status=progress oflag=sync
+
+
diff --git a/doc/note/burncdrom/growisofs.txt b/doc/note/burncdrom/growisofs.txt
deleted file mode 100644
index f9b0ad5..0000000
--- a/doc/note/burncdrom/growisofs.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-
-## Install
-
-apt install genisoimage
-
-
-## Burn from ISO to optical media
-
-growisofs -dvd-compat -Z /dev/srX=path/to/my.iso
-
-
-## Get checksum of disc
-
-- Use isoinfo (from genisoimage pkg) to get size params.
-- Use dd parameterized by previous output.
-
-  isoinfo -d dev=/dev/srX
-  dd bs=${Logical block size} count=${Volume size} if=/dev/srX | md5sum -b
-
-
diff --git a/doc/note/compress/xz.txt b/doc/note/compress/xz.txt
new file mode 100644
index 0000000..b7dff5f
--- /dev/null
+++ b/doc/note/compress/xz.txt
@@ -0,0 +1,5 @@
+
+
+  xz --keep --lzma2=preset=9,nice=273,dict=1G -vv
+
+
-- 
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