[Touch-packages] [Bug 857524] Re: dhclient-script will not work with read-only /etc
This change makes dhclient-script dependent on the existence of /etc/fstab. If /etc/fstab does not exist, dhclient fails to grab an IP. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/857524 Title: dhclient-script will not work with read-only /etc Status in isc-dhcp package in Ubuntu: Fix Released Status in isc-dhcp package in Debian: Fix Released Bug description: dhclient-script attempts to support read-only root , but it wont correctly work. For a read-only root to work, and support dhclient-script writing to /etc/resolv.conf, then /etc/resolv.conf would have to be a symlink to a writeable location (ie, /run). To that end, dhclient-script attempts to check and see if / is going to be mounted 'rw' and only wait for that case if it is. The problem is that it basically has the following logic: if root_will_be_mounted_rw; then wait-for-writable /etc/ fi new_resolv_conf=/etc/resolv.conf.dhclient-new write new file to to $new_resolv_conf change attributes of $new_resolv_conf to match resolv.conf mv $new_resolv_conf /etc/resolv.conf That doesn't work if /etc is read-only and /etc/resolv.conf is a symlink for the following reasons: * $new_resolv_conf is being written to /etc/ (and wont be writable) * the mv will actually break the symlink and try to create a new file in /etc ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: isc-dhcp-client 4.1.1-P1-17ubuntu9 ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 Uname: Linux 3.0.0-11-generic x86_64 ApportVersion: 1.23-0ubuntu1 Architecture: amd64 Date: Fri Sep 23 11:50:56 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318) ProcEnviron: SHELL=/bin/bash PATH=(custom, user) LANG=en_US.UTF-8 SourcePackage: isc-dhcp UpgradeStatus: Upgraded to oneiric on 2010-11-15 (311 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/857524/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 857524] Re: dhclient-script will not work with read-only /etc
** Changed in: isc-dhcp (Debian) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/857524 Title: dhclient-script will not work with read-only /etc Status in isc-dhcp package in Ubuntu: Fix Released Status in isc-dhcp package in Debian: Fix Released Bug description: dhclient-script attempts to support read-only root , but it wont correctly work. For a read-only root to work, and support dhclient-script writing to /etc/resolv.conf, then /etc/resolv.conf would have to be a symlink to a writeable location (ie, /run). To that end, dhclient-script attempts to check and see if / is going to be mounted 'rw' and only wait for that case if it is. The problem is that it basically has the following logic: if root_will_be_mounted_rw; then wait-for-writable /etc/ fi new_resolv_conf=/etc/resolv.conf.dhclient-new write new file to to $new_resolv_conf change attributes of $new_resolv_conf to match resolv.conf mv $new_resolv_conf /etc/resolv.conf That doesn't work if /etc is read-only and /etc/resolv.conf is a symlink for the following reasons: * $new_resolv_conf is being written to /etc/ (and wont be writable) * the mv will actually break the symlink and try to create a new file in /etc ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: isc-dhcp-client 4.1.1-P1-17ubuntu9 ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 Uname: Linux 3.0.0-11-generic x86_64 ApportVersion: 1.23-0ubuntu1 Architecture: amd64 Date: Fri Sep 23 11:50:56 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318) ProcEnviron: SHELL=/bin/bash PATH=(custom, user) LANG=en_US.UTF-8 SourcePackage: isc-dhcp UpgradeStatus: Upgraded to oneiric on 2010-11-15 (311 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/857524/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
