R3.2 Boot process crashes starting sys-usb

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Udjat

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Dec 6, 2018, 9:22:30 AM12/6/18
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Hi, Folk's,

the boot process in Release 3.2 crashes always during VM sys-usb start up.
The error message : ... Illegal opcode ...
Exists a way to disable the start of sys-usb for the boot ?
For example are there some kernel parameters to surpress the start of choosen VM's ?

Thanks in advance

ciao

awokd

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Dec 16, 2018, 3:45:02 PM12/16/18
to Udjat, qubes-users
'Udjat' via qubes-users wrote on 12/6/18 2:22 PM:
In 3.2 you can boot with another distro, mount the Qubes drive, and edit
qubes.xml to disable autostart of sys-usb.

unman

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Dec 16, 2018, 7:37:42 PM12/16/18
to qubes-users
Or you can do this within Qubes:
1. Interrupt the boot process and change the boot parameters to add rd.break=cleanup.
2. Boot.
You'll be prompted to decrypt disks and then drop to shell.
The root filesystem will be mounted ro at /sysroot.
3. umount /sysroot.
Mount it rw somewhere else (e.g /mnt - you'll have to create that)
4. mkdir /mnt
5. mount /dev/mapper/blah /mnt
6. cd /mnt/var/lib/qubes/servicevms
7. mv sys-usb sys-usb.bak
8. umount /mnt

Remount /dev/mapper/blah on /sysroot
9. mount /dev/mapper/blah /sysroot
10. exit
exit from the rescue shell

The system should then continue to boot - sys-usb wont be able to start.
Once up, 'mv sys-usb.bak sys-usb', and then fix whatever issue is causing
the crash, or remove the qube and recreate it.

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