Btrfs deadlock fix

NOTE: this kISO has been superseded by the SUSE Linux Enterprise 12 Service Pack 1 Installer Update Please use the new installer update.




This kISO (kernel ISO) provides an updated installer for SUSE linux Enterprise Server/Desktop 12 Service Pack 1 that addresses a potential deadlock when installing on fast storage (e.g. SSD) containing a Btrfs file system. The kISO must be used together with the official Service Pack 1 media or repository to complete the installation.

The kISO provides an updated kernel containing the fix. The updated kernel is used by the installer and installed on the target system. The updated packages are included inside the installer initrd of this ISO image.


  • SUSE Linux Enterprise Server 12 Service Pack 1


  • x86_64


kISO Image
File: btrfs-deadlock-fix-kiso-sle12-sp1-x86_64-1.1.iso · [download]
Size 153 MB
MD5 Checksum 3958c1aa8e4c7aafae1e4035e5b95fca
SHA256 Checksum c5bd4e7956e92761863a52cd6152d6c883accaa8635b1084098d56be9b29a09e


Media installation

  1. Burn the ISO image above to an empty CD/DVD media.
  2. Start the installation using the new CD/DVD media, having the standard SUSE Linux Enterprise media at hand or a URL to a network installation server.
    • If doing a network install, enter the URL of the network install source on the boot command line using the 'install=' option.
    • If doing installation from optical media the installer will first boot from the kISO and then ask to insert CD1 of the SUSE Linux Enterprise product.

PXE boot installation

  1. Download the ISO image above.
  2. Mount the ISO image for access to the contents.
  3. Copy the kernel and initrd images from the kISO iso image to the appropriate location on your tftp boot server. The initrd and kernel image are found under the /boot/x86_64/loader directory. Download links for the kernel and initrd images can also be found in the table below.
  4. An updated kernel will be used for installation and installed onto the system.

Note: the initial ramdisk (initrd) image on the kISO contains updated kernel packages and is substantially larger than the normal SUSE Linux Enterprise installer initrd. Therefore, a slight delay will be experienced as the system loads the large initial ramdisk.

Kernel Image
Name linux · [download]
Size 4.8 MB
MD5 Checksum e03f7e4070e74fe5b0581e016c8a0d2d
SHA256 Checksum 7747efe6a6dcd142a3920c26bb33911b61c204b65f848f05e624ca0bc23009c0
Initrd Image
Name initrd · [download]
Size 135 MB
MD5 Checksum 003548ecdee0f59e9bee2a51f82c2eb4
SHA256 Checksum 1780fea012920e3add45db76cafe856fab6b0c5a5350a1a729b6912e1c81c64b

package names and versions

The following packages are provided with this driver kit: