[Bug 1865959] Re: plymouth hook hangs waiting for input
Steve Langasek
steve.langasek at canonical.com
Wed Mar 4 01:06:50 UTC 2020
Why is the default.plymouth alternative not set up on the rpi images?
Are no theme packages installed?
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https://bugs.launchpad.net/bugs/1865959
Title:
plymouth hook hangs waiting for input
Status in plymouth package in Ubuntu:
New
Bug description:
In the fix for LP: #1864586 the following change was made:
THEME_PATH="$(update-alternatives --query default.plymouth 2>/dev/null | sed -e '/^Value:/!d' -e 's/^Value: \(.*\)/\1/')"
+IMAGE_PATH=$(grep "ImageDir *= *" ${THEME_PATH} | sed 's/ImageDir *= *//')
THEME="$(basename ${THEME_PATH:-none} .plymouth || true)"
THEMES="/usr/share/plymouth/themes"
Unfortunately, if the default.plymouth alternative is not set (as is
the case in the Raspberry Pi images for instance), then THEME_PATH
winds up blank. The introduced IMAGE_PATH line then hangs waiting for
input (as grep isn't given a filename to read).
I ran into this during an "apt upgrade" (which called update-
initramfs, and thus the plymouth hook) on a focal pi image; worked
around it by hitting Ctrl+D to let it continue, which allowed
everything to proceed as normal.
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