Public bug reported:
Base: Desktop 64bit installation ISO
Guest: Xen HVM, 2 vCPUs, 1/2/4 G memory
The wily desktop install iso fails to boot into the GUI lightdm
selection screen because of squashfs decompression failures. This
happens with 1 and 2 GB of virtual memory. 4 GB succeeds. Using KVM with
a comparable setup shows no issues with 1 and 2 GB of memory.
Normally KVM guests may differ in the number of hotplug CPUs but I tried
with 2GB memory and 128 possible CPUs as KVM guest and that worked as
well.
The Vivid desktop iso will successfully start as Xen HVM guest with 2G
of memory (have not tried 1G there yet). I also tried Vivid as host (Xen
version and dom0 kernel) with the same results. So it seems to be an
issue with the wily iso. So it seems to be something in the Wily kernel.
Memory layout did not look wrong. At least I could see no difference in
the e820 tables of a Vivid (3.19) and a Wily (4.2) kernel. Also looks
roughly the same as for a KVM boot.
** Affects: linux (Ubuntu)
Importance: Medium
Status: Confirmed
** Attachment added: "xen-dump-dmesg.txt"
https://bugs.launchpad.net/bugs/1506064/+attachment/4494420/+files/xen-dump-dmesg.txt
** Summary changed:
- [wily] squasfs decompression failures on Xen HVM guest
+ [wily] squashfs decompression failures on Xen HVM guest
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https://bugs.launchpad.net/bugs/1506064
Title:
[wily] squashfs decompression failures on Xen HVM guest
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