Re: [Libguestfs] Bug: windows server 2012R2 fails to start after virt-resize

On Thursday 10 December 2015 13:55:26 Maxim Perevedentsev wrote: > Hello everyone! > > After I ran virt-resize (v1.31.28) on my disk with win2012R2 > (partition table [GPT]: VFAT (100M), unknown (128M), NTFS (64G)) > My VM fails to boot: black screen informing that > > Windows failed to start... > Status: 0xc000000e > Info: an unexpected error has occured. > > After some investigations, I realized that Windows remembers the GUID of > disk it is installed to. > If I execute > > >guestfish -a win2012.hdd -v > ... > ><fs> debug sh 'sgdisk -p /dev/sda' > guestfsd: main_loop: new request, len 0x54 > /bin/sh -c sgdisk -p /dev/sda > Disk /dev/sda: 136314880 sectors, 65.0 GiB > Logical sector size: 512 bytes > Disk identifier (GUID): B3108127-1775-47B7-ABC1-A56D6761C894 > Partition table holds up to 128 entries > First usable sector is 34, last usable sector is 136314846 > Partitions will be aligned on 2048-sector boundaries > Total free space is 2101181 sectors (1.0 GiB) > > Number Start (sector) End (sector) Size Code Name > 1 2048 206847 100.0 MiB EF00 EFI > 2 206848 468991 128.0 MiB 0C01 Microsoft > 3 468992 134215679 63.8 GiB 0700 Basic > guestfsd: main_loop: proc 76 (debug) took 0.00 seconds > > *set the GUID of original disk* > ><fs> debug sh 'sgdisk -U ADAA2225-3F89-4F2C-91DF-02F3E0C2ED67 /dev/sda' > guestfsd: main_loop: new request, len 0x7c > /bin/sh -c sgdisk -U ADAA2225-3F89-4F2C-91DF-02F3E0C2ED67 /dev/sda > [ 70.170139] sda: sda1 sda2 sda3 > The operation has completed successfully. > guestfsd: main_loop: proc 76 (debug) took 1.02 seconds > The operation has completed successfully. > > After that Windows successfully boots from resized image. > > I suggest adding get/set disk GUID to API and to virt-resize as well. > Otherwise it is impossible to resize disks with this particular OS (not > only this one, possibly). This is supposed to be done already, see https://bugzilla.redhat.com/show_bug.cgi?id=1189284 (and the commits linked to its comment #9).

Please provide a full log of virt-resize with -v -x.

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