Date: Wed, 6 Dec 2017 09:06:42 +0000 From: Paul Webster <paul.g.webster@googlemail.com> To: Randy Terbush <randy@terbush.org> Cc: Peter Grehan <grehan@freebsd.org>, "freebsd-virtua." <freebsd-virtualization@freebsd.org> Subject: Re: Recovering an ZFS vm Message-ID: <CADdqeiO6r-tnKNzYAZMdWewOtSM63FEPT8dAWVgq%2Bv2BWyYgFA@mail.gmail.com> In-Reply-To: <CADdqeiNnVh8BocVWNzy=GnxkLLZLM1O_ysuqZgJUpHtT_Fyc7g@mail.gmail.com> References: <CALmWkDbeqCW_OZGxL_0_6mK%2B6fnpx3veX7i6F1dmJQmabh97cA@mail.gmail.com> <81d05d9d-044a-9cad-40e3-5ddf86da6570@freebsd.org> <CALmWkDbcif3Z1t1ZoGawe=zB2At5MOO2GKL=2LdL35KsvSRyFQ@mail.gmail.com> <CADdqeiNnVh8BocVWNzy=GnxkLLZLM1O_ysuqZgJUpHtT_Fyc7g@mail.gmail.com>
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Or as an alternative that just come to mind if your just wanting to 'save the system' boot the gentoo live DVD from the UEFI loader, that will get you a live XFS supportive shell you can then setup basic networking from and sync your important stuff elsewhere On 6 December 2017 at 09:04, Paul Webster <paul.g.webster@googlemail.com> wrote: > if you can get to a system that is running the same kernel, you could > build A compativle kernel with xfs in it and what not, stick it on a small > '/boot' of your own and include that on your bhyve line, so the kernel is > booted and then it mounts your existing system > > On 6 December 2017 at 05:50, Randy Terbush <randy@terbush.org> wrote: > >> One of the other VM clones is running. What do I need to do to mount the >> sparse-zvol dataset that is this disk image that won't boot? >> >> I'm still confused as to why one of these VM images would boot and not the >> other. They are both Centos 7 1708. At any rate, before taking a chance of >> shutting this image down, I'd appreciate any help to mount this other zvol >> and make sure the crc feature is disabled. >> >> Thanks >> >> -- >> Randy >> >> On Tue, Dec 5, 2017 at 4:56 PM, Peter Grehan <grehan@freebsd.org> wrote: >> >> > Hi Randy, >> > >> > I have a Centos vm that has suddenly stopped booting. At the console, >> grub >> >> tells me the following if I attempt to list any of the available >> >> partitions. >> >> >> >> error: not a correct XFS inode. >> >> error: not a correct XFS inode. >> >> error: not a correct XFS inode. >> >> error: not a correct XFS inode. >> >> error: not a correct XFS inode. >> >> Filesystem type xfs, UUID 7652ffda-f7c5-408a-b0ce-b554b66fc2e5 - >> >> Partition >> >> start at 2048 - Total size 2097152 sectors >> >> grub> >> >> >> >> Is there an easy way to recover this? This has happened more than once. >> >> Just so happens there is something on this image I would like to have >> >> access to... >> >> >> > >> > Looks like the grub partition was upgraded to the version of XFS that >> has >> > the CRC feature enabled (7.2 ?). Unfortunately this feature is not >> > understood by grub-bhyve :( >> > >> > One way to recover the disk is to create a new VM with the most recent >> > CentOS, but using UEFI for the bootloader. Then, add this disk to the >> > guest, and from within the guest I think you can run an XFS utility that >> > will disable the use of CRCs on that partition. >> > >> > The proper fix would be for grub-bhyve to be updated to the latest >> > version of grub2, though a workaround is to create guests with UEFI and >> not >> > use grub-bhyve. >> > >> > later, >> > >> > Peter. >> > >> _______________________________________________ >> freebsd-virtualization@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >> To unsubscribe, send any mail to "freebsd-virtualization-unsubs >> cribe@freebsd.org" >> > >
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