From 241f2c89769a72a0e04540a0310af2817b60ae24 Mon Sep 17 00:00:00 2001 From: johannst Date: Wed, 24 Nov 2021 23:50:09 +0000 Subject: deploy: 4b2d24e60b147e5a7552e01ba800573164b2c441 --- tools/gpg.html | 7 ++++--- tools/qemu.html | 33 ++++++++++++++++++++++++++++++--- 2 files changed, 34 insertions(+), 6 deletions(-) (limited to 'tools') diff --git a/tools/gpg.html b/tools/gpg.html index 65bfaec..5085c8c 100644 --- a/tools/gpg.html +++ b/tools/gpg.html @@ -210,9 +210,10 @@ gpg -o <file> --decrypt <file>.gpg

Signing

Generate a signed file and write to <file>.gpg.

-
gpg --sign -u foor@bar.de <file>
+
# Sign with private key of foo@bar.de
+gpg --sign -u foor@bar.de <file>
 
-# Verify
+# Verify with public key of foo@bar.de
 gpg --verify <file>
 
 # Extract content from signed file
@@ -223,7 +224,7 @@ gpg -o <file> --decrypt <file>.gpg
 
 
Files can also be signed and encrypted at once, gpg will first sign the
 file and then encrypt it.

-
gpg --sign --encrypt <file>
+
gpg --sign --encrypt -r <recipient> <file>
 

 
Signing (detached)

 
Generate a detached signature and write to <file>.asc.
diff --git a/tools/qemu.html b/tools/qemu.html
index eb46b87..6a04769 100644
--- a/tools/qemu.html
+++ b/tools/qemu.html
@@ -298,12 +298,12 @@ connection.

 

 
VM snapshots

 
VM snapshots require that there is at least on qcow2 disk attached to the VM
-([VM Snapshots][qemu-doc-snapshot]).

-
Commands for qemu [Monitor][qemu-doc-monitor] or [QMP][qemu-doc-qmp]:

+(VM Snapshots).

+
Commands for qemu Monitor or QMP:

 
# List available snapshots.
 info snapshots
 
-# Create/Load/Delete snapshot with name <tag>
+# Create/Load/Delete snapshot with name <tag>.
 savevm <tag>
 loadvm <tag>
 delvm <tag>
@@ -313,6 +313,33 @@ delvm <tag>
     -loadvm <tag>  \
     ...
 

+
VM Migration

+
Online migration example:

+
# Start machine 1 on host ABC.
+qemu-system-x86_64 -monitor stdio -cdrom <iso>
+
+# Prepare machine 2 on host DEF as migration target.
+# Listen for any connection on port 12345.
+qemu-system-x86_64 -monitor stdio -incoming tcp:0.0.0.0:12345
+
+# Start migration from the machine 1 monitor console.
+(qemu) migrate tcp:DEF:12345
+

+
Save to external file example:

+
```bash
+# Start machine 1.
+qemu-system-x86_64 -monitor stdio -cdrom <iso>
+
+# Save VM state to file.
+(qemu) migrate "exec:gzip -c > vm.gz"
+
+# Load VM from file.
+qemu-system-x86_64 -monitor stdio -incoming "exec: gzip -d -c vm.gz"
+

+

+
The migration source machine and the migration target machine should be
+launched with the same parameters.

+

 
Appendix: Direct Kernel boot

 
Example command line to directly boot a Kernel with an initrd ramdisk.

 
qemu-system-x86_64                                                     \
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