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Diffstat (limited to 'results/scraper/launchpad-without-comments/1070762')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1070762 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1070762 b/results/scraper/launchpad-without-comments/1070762 new file mode 100644 index 00000000..1556af03 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1070762 @@ -0,0 +1,37 @@ +savevm fails with inserted CD, "Device '%s' is writable but does not support snapshots." + +Hi, + +yesterday unfortunately a customer reported a failed snapshot of his VM. Going through the logfile I discovered: + +"Device 'ide1-cd0' is writable but does not support snapshots" + +this is with qemu-1.2.0 and 1.0.1 at least... + +Why writeable? +Even if I specify "-drive ...,readonly=on,snapshot=off" to qemu the monitor-command sees the CD-ROM-device as being writeable?! + +Somewhere I saw a "hint" for blockdev.c: +=== snip === + +--- /tmp/blockdev.c 2012-10-24 11:37:10.000000000 +0200 ++++ blockdev.c 2012-10-24 11:37:17.000000000 +0200 +@@ -551,6 +551,7 @@ + case IF_XEN: + case IF_NONE: + dinfo->media_cd = media == MEDIA_CDROM; ++ dinfo->bdrv->read_only = 1; + break; + case IF_SD: + case IF_FLOPPY: + +=== snap === + +after installing with this small patch applied it works, so insert CD, savevm <somename> succeeds. +This should be fixed at all correct places, and the tags "readonly=on,snapshot=off" should do it, too. Or even just work after specifying a drive being a CD-rom should do the trick ;-) + +Another "bad habit" is, that the ISO/DVD-file has to be writeable to be changed? + +Thnx for attention and regards, + +Oliver. \ No newline at end of file |