7:24 a.m.
I think calling "sh" before "mount" should not confuse guestfish like
that:
# guestfish (1.20.4 on sles11sp3)
Welcome to guestfish, the libguestfs filesystem interactive shell for
editing virtual machine filesystems.
Type: 'help' for help on commands
'man' to read the manual
'quit' to quit the shell
<fs> add-drive
/dev/shm/olaf/vdisk-sles11sp2_full_fate310510-disk0
<fs> launch
100% ⟦▒⟧ 00:00
<fs> sh "cd / ; chroot / ; /bin/pwd"
libguestfs:
error: sh: do_command: you must call 'mount' first to mount the root filesystem
<fs> mount /dev/sda2 /
libguestfs: error: mount: call
launch before using this function\n(in guestfish, don't forget to use the
'run' command)
<fs> launch
libguestfs: error: you must call
guestfs_add_drive before guestfs_launch
<fs>
Olaf
7:40 a.m.
On Sun, Aug 18, Olaf Hering wrote:
I think calling "sh" before "mount" should not confuse guestfish
like
that:
# guestfish (1.20.4 on sles11sp3)
Doing the same, by accident, with 1.22.5 causes a crash:
# guestfish -r -v --network
<fs> add-drive /work/kvm/images/opensuse12.3/disk0.raw
<fs> launch
<fs> sh "ip a"
guestfsd: main_loop: new request,
len 0x30
guestfsd: error: do_command: you must call 'mount' first to mount the root
filesystem
*** glibc detected *** guestfsd: free(): invalid pointer: 0x00007fffd8425ba0 ***
libguestfs: error: sh: do_command: you must call 'mount' first to mount the root
filesystem
<fs> mount /de======= Backtrace: =========
/lib64/libc.so.6(+0x733b6)[0x7f4994ae83b6]
/lib64/libc.so.6(cfree+0x6c)[0x7f4994aed2dc]
guestfsd[0x409e6f]
guestfsd[0x40a01b]
guestfsd[0x43e9a1]
guestfsd[0x422bd7]
guestfsd[0x41606c]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x7f4994a93bfd]
uestfsd[0x405189]
...
Olaf
1:33 p.m.
On Thu, Aug 22, 2013 at 02:40:27PM +0200, Olaf Hering wrote:
On Sun, Aug 18, Olaf Hering wrote:
>
> I think calling "sh" before "mount" should not confuse guestfish
like
> that:
>
> # guestfish (1.20.4 on sles11sp3)
Doing the same, by accident, with 1.22.5 causes a crash:
# guestfish -r -v --network
><fs> add-drive /work/kvm/images/opensuse12.3/disk0.raw
><fs> launch
><fs> sh "ip a"
guestfsd: main_loop: new request, len 0x30
guestfsd: error: do_command: you must call 'mount' first to mount the root
filesystem
*** glibc detected *** guestfsd: free(): invalid pointer: 0x00007fffd8425ba0 ***
libguestfs: error: sh: do_command: you must call 'mount' first to mount the root
filesystem
><fs> mount /de======= Backtrace: =========
/lib64/libc.so.6(+0x733b6)[0x7f4994ae83b6]
/lib64/libc.so.6(cfree+0x6c)[0x7f4994aed2dc]
guestfsd[0x409e6f]
guestfsd[0x40a01b]
guestfsd[0x43e9a1]
guestfsd[0x422bd7]
guestfsd[0x41606c]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x7f4994a93bfd]
uestfsd[0x405189]
Yup, that's a bug :-(
https://bugzilla.redhat.com/show_bug.cgi?id=1000121
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v
1:40 p.m.
On Thu, Aug 22, 2013 at 07:33:09PM +0100, Richard W.M. Jones wrote:
On Thu, Aug 22, 2013 at 02:40:27PM +0200, Olaf Hering wrote:
> On Sun, Aug 18, Olaf Hering wrote:
>
> >
> > I think calling "sh" before "mount" should not confuse
guestfish like
> > that:
> >
> > # guestfish (1.20.4 on sles11sp3)
>
> Doing the same, by accident, with 1.22.5 causes a crash:
>
>
> # guestfish -r -v --network
> ><fs> add-drive /work/kvm/images/opensuse12.3/disk0.raw
> ><fs> launch
>
> ><fs> sh "ip a"
> guestfsd: main_loop: new request, len 0x30
> guestfsd: error: do_command: you must call 'mount' first to mount the root
filesystem
> *** glibc detected *** guestfsd: free(): invalid pointer: 0x00007fffd8425ba0 ***
> libguestfs: error: sh: do_command: you must call 'mount' first to mount the
root filesystem
> ><fs> mount /de======= Backtrace: =========
> /lib64/libc.so.6(+0x733b6)[0x7f4994ae83b6]
> /lib64/libc.so.6(cfree+0x6c)[0x7f4994aed2dc]
> guestfsd[0x409e6f]
> guestfsd[0x40a01b]
> guestfsd[0x43e9a1]
> guestfsd[0x422bd7]
> guestfsd[0x41606c]
> /lib64/libc.so.6(__libc_start_main+0xfd)[0x7f4994a93bfd]
> uestfsd[0x405189]
Yup, that's a bug :-(
https://bugzilla.redhat.com/show_bug.cgi?id=1000121
Seems to just be a missing initializer:
https://github.com/libguestfs/libguestfs/commit/fc2947b1125aa34b5f04efd2d...
I'll look for similar cases.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW
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