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virtio / svm / vfs_mountroot: cannot mount root

854985Apr 13 2011
Hi,

I've been working on a block driver for VirtIO. At this stage I can use Jumpstart to install using a VirtIO disk as the boot disk with a UFS file system and it all seems to work okay.

However, when I try to do an install with the boot disk under SVM control, the install works okay but after the reboot I get

Cannot mount root on /pci@0,0/pci1af4,2@5:a fstype ufs

panic[cpu0]/thread=fffffffffbc288a0: vfs_mountroot: cannot mount root

Booting into failsafe mode, the device is available

Searching for installed OS instances...
/dev/dsk/c0d5s0 is under md control, skipping.


I can mount the root slice under SVM.

# mkdir /tmp/mnt
# mount /dev/dsk/c0d5s0 /tmp/mnt
# cp /tmp/mnt/kernel/drv/md.conf /kernel/drv/md.conf
# umount /tmp/mnt
# update_drv -f md
devfsadm: mkdir failed for /dev 0x1ed: Read-only file system
WARNING: /pci@0,0/pci1af4,1100@1,2 (uhci0): No SOF interrupts have been received, this USB UHCI host controller is unusable

# #
# metainit -r
# mount /dev/md/dsk/d10 /tmp/mnt


Any ideas why the normal boot fails?

Thanks,
Conor
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