I changed the script to this, mimicking the original check() function:
#!/bin/bash
DRACUT_INSTALL=/bin/true # dracut-functions.sh exits if it can't find
dracut-install
. "$(dirname "$0")/dracut-functions.sh"
check() {
local arg="$1"
require_binaries "${arg}" || return 1
return 255
}
echo "Path to check: $1"
ls -la "$1"
echo "Calling check $1"
check "$1"
echo "check $1 returned $?"
Something that does not exist in the given path, but does exist elsewhere in
PATH:
$ ./demo-defect2.sh /asd/asd/bash
Path to check: /asd/asd/bash
ls: cannot access '/asd/asd/bash': No such file or directory
Calling check /asd/asd/bash
check /asd/asd/bash returned 255
Now something that exists in the given path:
$ ./demo-defect2.sh /bin/bash
Path to check: /bin/bash
-rwxr-xr-x 1 root root 1540520 Feb 13 2026 /bin/bash
Calling check /bin/bash
check /bin/bash returned 255
Finally, something that doesn't exist anywhere:
$ ./demo-defect2.sh /asd/asd/jfhiowehg
Path to check: /asd/asd/jfhiowehg
ls: cannot access '/asd/asd/jfhiowehg': No such file or directory
Calling check /asd/asd/jfhiowehg
check /asd/asd/jfhiowehg returned 1
So check() only returns 1 when the thing definitely doesn't exist. But if it
exists exactly where specified, or somewhere else in PATH, it returns 255.
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https://bugs.launchpad.net/bugs/2150657
Title:
Use busybox instead of rust-coreutils in initrd
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