I've got (at least) two servers that lose their root partition after this upgrade. One of them has an HP cciss SCSI RAID controller; the other has a single IDE hard drive. Assuming the problem is something common, I'll stick to describing the one with the array for now.
First of all, I didn't touch /etc/fstab: /dev/cciss/c0d0p2 /boot ext3 noauto,noatime 1 2 /dev/cciss/c0d0p3 / ext4 acl,noatime 0 1 /dev/cciss/c0d0p1 none swap sw 0 0 I built the kernel after a make oldconfig, and updated grub.conf: title Gentoo Linux 2.6.36-hardened-r6 root (hd0,1) kernel /kernel-2.6.36-hardened-r6 It's actually there: # /bin/ls /boot/kernel-2.6.36-hardened-r6 /boot/kernel-2.6.36-hardened-r6 But upon reboot, this happens: http://michael.orlitzky.com/images/untouched.jpg So, I tried it with root=/dev/cciss/c0d0p3: http://michael.orlitzky.com/images/with_root_param.jpg It clearly sees my partitions, since it lists them all. The root is ext4, which is compiled into the kernel: # grep EXT4 .config CONFIG_EXT4_FS=y CONFIG_EXT4_FS_XATTR=y CONFIG_EXT4_FS_POSIX_ACL=y # CONFIG_EXT4_FS_SECURITY is not set # CONFIG_EXT4_DEBUG is not set Now I'm at a loss. There must have been something else that I did during the make oldconfig that broke it. I keep my kernel configs in git, so here's the diff (with context stripped) from my previous kernel, 2.6.32-hardened-r22. If anyone has any ideas, I'd appreciate it: +CONFIG_INSTRUCTION_DECODER=y -CONFIG_GENERIC_TIME=y +CONFIG_NEED_SG_DMA_LENGTH=y +CONFIG_HAVE_EARLY_RES=y +CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-ecx -fcall-saved-edx" +CONFIG_CROSS_COMPILE="" +CONFIG_HAVE_KERNEL_LZO=y +CONFIG_PERF_EVENTS=y +CONFIG_HAVE_OPTPROBES=y +CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y +CONFIG_HAVE_HW_BREAKPOINT=y +CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y +CONFIG_HAVE_USER_RETURN_NOTIFIER=y +CONFIG_HAVE_PERF_EVENTS_NMI=y +CONFIG_INLINE_SPIN_UNLOCK=y +CONFIG_INLINE_SPIN_UNLOCK_IRQ=y +CONFIG_INLINE_READ_UNLOCK=y +CONFIG_INLINE_READ_UNLOCK_IRQ=y +CONFIG_INLINE_WRITE_UNLOCK=y +CONFIG_INLINE_WRITE_UNLOCK_IRQ=y +CONFIG_MUTEX_SPIN_ON_OWNER=y +CONFIG_NO_BOOTMEM=y -CONFIG_X86_L1_CACHE_BYTES=64 -CONFIG_X86_INTERNODE_CACHE_BYTES=64 +CONFIG_X86_INTERNODE_CACHE_SHIFT=7 -CONFIG_HAVE_MLOCK=y -CONFIG_HAVE_MLOCKED_PAGE_BIT=y -CONFIG_ACPI_DOCK=y +CONFIG_ACPI_HED=m +CONFIG_ACPI_APEI=y +CONFIG_ACPI_APEI_GHES=m +CONFIG_INTEL_IDLE=y +CONFIG_PCIEASPM=y +CONFIG_PCI_IOAPIC=y -CONFIG_PACKET_MMAP=y + + + +CONFIG_NETFILTER_XT_MATCH_OSF=m -CONFIG_NETFILTER_XT_MATCH_OSF=m +CONFIG_RPS=y + +CONFIG_SCSI_MOD=y + + - +CONFIG_VGA_ARB_MAX_GPUS=2 +CONFIG_USB_EHCI_TT_NEWSCHED=y - -CONFIG_INOTIFY=y +CONFIG_PAX_ELFRELOCS=y +CONFIG_DEFAULT_SECURITY_DAC=y +CONFIG_DEFAULT_SECURITY="" -CONFIG_CRYPTO_FIPS=y -CONFIG_CRYPTO_AEAD2=y -CONFIG_CRYPTO_BLKCIPHER=m -CONFIG_CRYPTO_BLKCIPHER2=y -CONFIG_CRYPTO_RNG=m -CONFIG_CRYPTO_RNG2=y -CONFIG_CRYPTO_PCOMP=y -CONFIG_CRYPTO_MANAGER=y -CONFIG_CRYPTO_MANAGER2=y -CONFIG_CRYPTO_WORKQUEUE=y -CONFIG_CRYPTO_ECB=m -CONFIG_CRYPTO_CRC32C_INTEL=m -CONFIG_CRYPTO_MD5=m -CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_AES_586=m -CONFIG_CRYPTO_DES=m -CONFIG_CRYPTO_ZLIB=y -CONFIG_CRYPTO_ANSI_CPRNG=m -CONFIG_ZLIB_INFLATE=y -CONFIG_ZLIB_DEFLATE=y
