Richard W.M. Jones
2021-Mar-18 11:12 UTC
[Libguestfs] error invalid partition data while using libguestfs-tools
On Thu, Mar 18, 2021 at 04:10:51PM +0800, ??? wrote:> I'm trying to upload a file to guest os by using libguestfs api. but a > partition error occurs during the `virt-copy-in` command. it seems its some > problems with the `sgdisk` command, but i have no idea how to fix this. is this > some problems with the host os or the guest os? or maybe is the version of > libguestfs? btw, my host os is centos 7.6 with libguestfs 1.40. > > ``` > $ virt-copy-in -d 138093b9b33345c38e58efa014036bd8 1.txt /root/ > libguestfs: error: inspect_os: sgdisk: Invalid partition data! > $ cat /etc/redhat-release > CentOS Linux release 7.6.1810 (Core) > $ yum list installed | grep libguestfs > libguestfs.x86_64 1:1.40.2-10.el7 @base > ... > ``` > > and after turning on LIBGUESTFS_DEBUG and LIBGUESTFS_TRACE flag, i found out > the error was happening which calling `guestfs_inspect_os()` function. but i > still dont know how to fix this. here are part of the output: > > ``` > ... > calling: settle > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > command: sfdisk '--print-id' '/dev/sdb' '1' > [ 2.400992] sdb: sdb1 sdb2 > command: sfdisk returned 0 > command: sfdisk: stdout: > 0 > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > command: fold-stdout-on-stderr sgdisk '/dev/sdb' '-i' '1' > [ 2.427088] sdb: sdb1 sdb2 > command: sgdisk returned 2 > command: sgdisk: stderr: > Invalid partition data!The error comes from sgdisk running on the guest, so it is a bug in sgdisk or maybe a problem with the guest filesystem itself. The closest I can find is this report from a few years ago: https://listman.redhat.com/archives/libguestfs/2018-May/msg00009.html What is the guest? And what version of sgdisk are you using? You could also try something like: $ virt-rescue --ro -d 138093b9b33345c38e58efa014036bd8 ><rescue> sgdisk /dev/sdb -i 1 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html
钱非凡
2021-Mar-19 03:47 UTC
[Libguestfs] error invalid partition data while using libguestfs-tools
Thanks for replying, rich. here are some informations i gathered. the guest is linux (centos) and i find out the guest's file system is 'xfs' using `df -hT`: ``` $ df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/centos-root xfs 8.0G 1003M 7.1G 13% / devtmpfs devtmpfs 484M 0 484M 0% /dev tmpfs tmpfs 496M 0 496M 0% /dev/shm tmpfs tmpfs 496M 6.8M 489M 2% /run tmpfs tmpfs 496M 0 496M 0% /sys/fs/cgroup /dev/vda1 xfs 1014M 132M 883M 14% /boot tmpfs tmpfs 100M 0 100M 0% /run/user/0 ``` and sgdisk version is 0.8.10: ``` $ sgdisk --version GPT fdisk (sgdisk) version 0.8.10 ``` also, i tried the command you gave. it came out the same output: ``` $ virt-rescue --ro -d 138093b9b33345c38e58efa014036bd8 ><rescue> sgdisk /dev/sdb -i 1 Invalid partition data! ``` but strange things happened when i tried some other reports' suggestions: https://listman.redhat.com/archives/libguestfs/2016-February/msg00145.html https://listman.redhat.com/archives/libguestfs/2018-November/msg00026.html i did these things: 1. set LIBGUESTFS_BACKEND to direct; 2. recompile the `libguestfs-1.40.2-10.el7.src.rpm` without the `XXXX-RHEL-7-Reject-use-of-libguestfs-winsupport-features-.patch `; 3. run the `virt-rescue` command again. ``` $ virt-rescue --ro -d 138093b9b33345c38e58efa014036bd8 ><rescue> sgdisk /dev/sdb -i 1 Creating new GPT entries. Partition #1 does not exist. ``` and the command works somehow. apparently, i still dont understand what happened indeed. and i have read about the official explanation of LIBGUESTFS_BACKEND, is this something to do with libvirt? is it a bug or something? https://libguestfs.org/libguestfs-test-tool.1.html#trying-out-with-without-libvirt ------------------ Original ------------------ From: "Richard W.M. Jones";<rjones at redhat.com>; Send time: Thursday, Mar 18, 2021 7:12 PM To: "???"<b3ale693592 at foxmail.com>; Cc: "libguestfs"<libguestfs at redhat.com>; Subject: Re: [Libguestfs] error invalid partition data while using libguestfs-tools On Thu, Mar 18, 2021 at 04:10:51PM +0800, ??? wrote: > I'm trying to upload a file to guest os by using libguestfs api. but a > partition error occurs during the `virt-copy-in` command. it seems its some > problems with the `sgdisk` command, but i have no idea how to fix this. is this > some problems with the host os or the guest os? or maybe is the version of > libguestfs? btw, my host os is centos 7.6 with libguestfs 1.40. > > ``` > $ virt-copy-in -d 138093b9b33345c38e58efa014036bd8 1.txt /root/ > libguestfs: error: inspect_os: sgdisk: Invalid partition data! > $ cat /etc/redhat-release > CentOS Linux release 7.6.1810 (Core) > $ yum list installed | grep libguestfs > libguestfs.x86_64 1:1.40.2-10.el7 @base > ... > ``` > > and after turning on LIBGUESTFS_DEBUG and LIBGUESTFS_TRACE flag, i found out > the error was happening which calling `guestfs_inspect_os()` function. but i > still dont know how to fix this. here are part of the output: > > ``` > ... > calling: settle > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > command: sfdisk '--print-id' '/dev/sdb' '1' > [ 2.400992] sdb: sdb1 sdb2 > command: sfdisk returned 0 > command: sfdisk: stdout: > 0 > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > commandrvf: stdout=n stderr=y flags=0x0 > commandrvf: udevadm --debug settle > calling: settle > command: fold-stdout-on-stderr sgdisk '/dev/sdb' '-i' '1' > [ 2.427088] sdb: sdb1 sdb2 > command: sgdisk returned 2 > command: sgdisk: stderr: > Invalid partition data! The error comes from sgdisk running on the guest, so it is a bug in sgdisk or maybe a problem with the guest filesystem itself. The closest I can find is this report from a few years ago: https://listman.redhat.com/archives/libguestfs/2018-May/msg00009.html What is the guest? And what version of sgdisk are you using? You could also try something like: $ virt-rescue --ro -d 138093b9b33345c38e58efa014036bd8 ><rescue> sgdisk /dev/sdb -i 1 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/libguestfs/attachments/20210319/faae186a/attachment.htm>