Public bug reported:
When attempting a netboot install on bionic, it fails during base system
install, with the message:
. │ │ Debootstrap warning │ │
. │ │ Warning: Failure trying to run: chroot /target dpkg-deb -f │ │
. │ │ /var/cache/apt/archives/dpkg_1.19.0.4ubuntu1_ppc64el.deb Version │ │
Trying to run anything in the chroot at /target/ fails:
~ # chroot /target /bin/bash
chroot: can't execute '/bin/bash': No such file or directory
~ # ls -l /target/bin/bash
-rwxr-xr-x 1 root root 1544376 May 17 2017 /target/bin/bash
... which looks like a missing dynamic linker:
$ readelf -l bash | grep interpreter
[Requesting program interpreter: /lib64/ld64.so.2]
~ # ls -l /target/lib64/ld64.so.2
ls: /target/lib64/ld64.so.2: No such file or directory
~ # ls -la /target/lib64/
drwxr-xr-x 2 root root 4096 Oct 11 20:21 .
drwxr-xr-x 20 root root 4096 May 23 2017 ..
The syslog seems to indicate that the installer failed to untar a
symlink:
Dec 12 05:17:36 debootstrap: tar: skipping unsafe symlink to '/lib
/powerpc64le-linux-gnu/ld-2.26.so' in archive, set
EXTRACT_UNSAFE_SYMLINKS=1 to extract
I've attached a script to reproduce the issue in qemu. I can provide the
full syslog if you need it.
** Affects: debian-installer (Ubuntu)
Importance: Undecided
Status: New
** Tags: ppc64el
** Attachment added: "Test script to reproduce installer failure"
https://bugs.launchpad.net/bugs/1737661/+attachment/5021540/+files/test-installer-ppc64le.sh
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https://bugs.launchpad.net/bugs/1737661
Title:
Bionic net installer on ppc64el fails, can't chroot to target
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