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...probably be done using 'virt-rescue'. > Hi, Rich I think we should have a API btrfs_filesystem_show_all: #btrfs fi show Label: none uuid: e34452fa-5444-4e7b-9faa-c26fa1b83686 Total devices 1 FS bytes used 176.00KiB devid 1 size 1.00GiB used 236.00MiB path /dev/sda6 Label: none uuid: 9cdb73b9-d5b9-46c4-9395-25a952e7922a Total devices 5 FS bytes used 112.00KiB devid 1 size 10.00GiB used 1.02GiB path /dev/sdb devid 2 size 10.00GiB used 2.00GiB path /dev/sdd devid 3 size 10.00GiB used 2.00GiB path /dev/sde ... If VM has two btrfs filesystem, this API could tell user which device runs on...

On Fri, Mar 06, 2015 at 07:39:36AM +0000, Chen, Hanxiao wrote: > > > > -----Original Message----- > > From: Richard W.M. Jones [mailto:rjones@redhat.com] > > Sent: Thursday, March 05, 2015 8:59 PM > > To: Chen, Hanxiao/陈 晗霄 > > Cc: libguestfs@redhat.com > > Subject: Re: [Libguestfs] [PATCH 1/2] New API: btrfs_filesystem_show > > > > AFAICT

...("calloc"); + goto error; + } + + /* Output of `btrfs filesystem show' is like: + * + * Label: none uuid: e34452fa-5444-4e7b-9faa-c26fa1b83686 + * Total devices 1 FS bytes used 176.00KiB + * devid 1 size 1.00GiB used 236.00MiB path /dev/sda6 + * + * Label: none uuid: 9cdb73b9-d5b9-46c4-9395-25a952e7922a + * Total devices 5 FS bytes used 112.00KiB + * devid 1 size 10.00GiB used 1.02GiB path /dev/sdb + * devid 2 size 10.00GiB used 2.00GiB path /dev/sdd + * devid 3 size 10.00GiB used 2.00GiB path /dev/sde + * + * Btrfs v3.18.2 + * + * + * If no btrfs devi...

...+ } > + > + /* Output of `btrfs filesystem show' is like: > + * > + * Label: none uuid: e34452fa-5444-4e7b-9faa-c26fa1b83686 > + * Total devices 1 FS bytes used 176.00KiB > + * devid 1 size 1.00GiB used 236.00MiB path /dev/sda6 > + * > + * Label: none uuid: 9cdb73b9-d5b9-46c4-9395-25a952e7922a > + * Total devices 5 FS bytes used 112.00KiB > + * devid 1 size 10.00GiB used 1.02GiB path /dev/sdb > + * devid 2 size 10.00GiB used 2.00GiB path /dev/sdd > + * devid 3 size 10.00GiB used 2.00GiB path /dev/sde > + * > + * Btrfs v3.18.2 >...

...of `btrfs filesystem show' is like: > > + * > > + * Label: none uuid: e34452fa-5444-4e7b-9faa-c26fa1b83686 > > + * Total devices 1 FS bytes used 176.00KiB > > + * devid 1 size 1.00GiB used 236.00MiB path /dev/sda6 > > + * > > + * Label: none uuid: 9cdb73b9-d5b9-46c4-9395-25a952e7922a > > + * Total devices 5 FS bytes used 112.00KiB > > + * devid 1 size 10.00GiB used 1.02GiB path /dev/sdb > > + * devid 2 size 10.00GiB used 2.00GiB path /dev/sdd > > + * devid 3 size 10.00GiB used 2.00GiB path /dev/sde > > + * >...