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Chroot builds: Provide world-readable /nix/store

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This was causing NixOS VM tests to fail mysteriously since
5ce50cd99e. Nscd could (sometimes) no
longer read /etc/hosts:

open("/etc/hosts", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)

Probably there was some wacky interaction between the guest kernel and
the 9pfs implementation in QEMU.
This commit is contained in:
Eelco Dolstra 2015-04-02 16:59:40 +02:00
parent be1ff23352
commit afa433e58c
1 changed files with 1 additions and 1 deletions
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2
src/libstore/build.cc
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@ -1895,7 +1895,7 @@ void DerivationGoal::startBuilder()
build user. */ build user. */
Path chrootStoreDir = chrootRootDir + settings.nixStore; Path chrootStoreDir = chrootRootDir + settings.nixStore;
createDirs(chrootStoreDir); createDirs(chrootStoreDir);
chmod_(chrootStoreDir, 0730); chmod_(chrootStoreDir, 0735);
if (chown(chrootStoreDir.c_str(), 0, buildUser.getGID()) == -1) if (chown(chrootStoreDir.c_str(), 0, buildUser.getGID()) == -1)
throw SysError(format("cannot change ownership of ‘%1%’") % chrootStoreDir); throw SysError(format("cannot change ownership of ‘%1%’") % chrootStoreDir);