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Do not patch $TARGET_FS_ROOT/etc/mtab if symbolic link. #2048

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Do not patch $TARGET_FS_ROOT/etc/mtab if symbolic link. #2048

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7 changes: 7 additions & 0 deletions usr/share/rear/finalize/GNU/Linux/280_migrate_uuid_tags.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,13 @@ for file in [b]oot/{grub.conf,menu.lst,device.map} [e]tc/grub.* \
[e]tc/security/pam_mount.conf.xml [b]oot/efi/*/*/grub.cfg
do

# $TARGET_FS_ROOT/etc/mtab is no longer regular file but symbolic link
# pointing to /proc/mounts resp /proc/self/mounts.
# We should not poke around /proc with `sed -i` for this reason we will
# check if $TARGET_FS_ROOT/etc/mtab is symbolic link and skip all further
# replacements.
[[ "$file" = "etc/mtab" && -L "$file" ]] && continue

#[[ -d "$file" ]] && continue # skip directory
[[ ! -f "$file" ]] && continue # skip directory and file not found
# sed -i bails on symlinks, so we follow the symlink and patch the result
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