From 673ead66567478de006650e4a502b81d08652b4c Mon Sep 17 00:00:00 2001 From: Guillaume Cottenceau Date: Sat, 18 Oct 2003 22:32:49 +0000 Subject: support cloop over NFS too. stay flexible enough so that server= parameter can either designate the root of the live tree or the root for the cloop live tree, program will detect automatically both. --- mdk-stage1/cdrom.c | 4 ---- mdk-stage1/config-stage1.h | 1 + mdk-stage1/network.c | 2 +- mdk-stage1/stage1.c | 26 ++++++++++++++++++++++++++ 4 files changed, 28 insertions(+), 5 deletions(-) (limited to 'mdk-stage1') diff --git a/mdk-stage1/cdrom.c b/mdk-stage1/cdrom.c index 8c136c125..98cea4765 100644 --- a/mdk-stage1/cdrom.c +++ b/mdk-stage1/cdrom.c @@ -73,10 +73,6 @@ static enum return_type do_with_device(char * dev_name, char * dev_model) #ifndef MANDRAKE_MOVE if (IS_SPECIAL_STAGE2 || ramdisk_possible()) load_ramdisk(); /* we don't care about return code, we'll do it live if we failed */ -#else - my_insmod("cloop", ANY_DRIVER_TYPE, "file=" IMAGE_LOCATION "/live_tree.clp"); - if (my_mount("/dev/cloop0", IMAGE_LOCATION_REAL, "iso9660", 0)) - stg1_error_message("Could not mount compressed loopback :(."); #endif if (IS_RESCUE) diff --git a/mdk-stage1/config-stage1.h b/mdk-stage1/config-stage1.h index c4b065bd3..57041bfa5 100644 --- a/mdk-stage1/config-stage1.h +++ b/mdk-stage1/config-stage1.h @@ -36,6 +36,7 @@ #define IMAGE_LOCATION "/sysroot/image_raw" #define IMAGE_LOCATION_REAL "/sysroot/image" #define SLASH_LOCATION "/sysroot" +#define RAW_LOCATION_REL "/image_raw" #define LIVE_LOCATION_REL "/image" #else #define DISTRIB_NAME "Mandrake Linux" diff --git a/mdk-stage1/network.c b/mdk-stage1/network.c index 84baba81e..f6834c55b 100644 --- a/mdk-stage1/network.c +++ b/mdk-stage1/network.c @@ -661,7 +661,7 @@ enum return_type nfs_prepare(void) } #ifdef MANDRAKE_MOVE - if (access(IMAGE_LOCATION "/usr/bin/runstage2", R_OK)) { + if (access(IMAGE_LOCATION "/usr/bin/runstage2", R_OK) && access(IMAGE_LOCATION "/live_tree.clp", R_OK)) { #else if (access(IMAGE_LOCATION LIVE_LOCATION, R_OK)) { #endif diff --git a/mdk-stage1/stage1.c b/mdk-stage1/stage1.c index e85802995..829d85514 100644 --- a/mdk-stage1/stage1.c +++ b/mdk-stage1/stage1.c @@ -393,6 +393,25 @@ int mandrake_move_post(void) char buf[5000]; int fd; char rootdev[] = "0x0100"; + int real_is_symlink_to_raw = 0; + + if (!access(IMAGE_LOCATION "/move/symlinks", R_OK)) { + log_message("move: seems we don't use a cloop since " IMAGE_LOCATION "/move/symlinks is here"); + if (scall(symlink(IMAGE_LOCATION, IMAGE_LOCATION_REAL), "symlink")) + return RETURN_ERROR; + real_is_symlink_to_raw = 1; + } else { + if (access(IMAGE_LOCATION "/live_tree.clp", R_OK)) { + log_message("move: panic, " IMAGE_LOCATION "/move/symlinks isn't here but " IMAGE_LOCATION "/live_tree.clp neither"); + return RETURN_ERROR; + } else { + my_insmod("cloop", ANY_DRIVER_TYPE, "file=" IMAGE_LOCATION "/live_tree.clp"); + if (scall(mknod("/dev/cloop0", S_IFBLK | 0600, makedev(240, 0)), "mknod")) + return RETURN_ERROR; + if (my_mount("/dev/cloop0", IMAGE_LOCATION_REAL, "iso9660", 0)) + stg1_error_message("Could not mount compressed loopback :(."); + } + } if (scall(!(f = fopen(IMAGE_LOCATION_REAL "/move/symlinks", "rb")), "fopen")) return RETURN_ERROR; @@ -424,6 +443,13 @@ int mandrake_move_post(void) } fclose(f); + if (real_is_symlink_to_raw) { + if (scall(unlink(IMAGE_LOCATION_REAL), "unlink")) + return RETURN_ERROR; + if (scall(symlink(RAW_LOCATION_REL, IMAGE_LOCATION_REAL), "symlink")) + return RETURN_ERROR; + } + log_message("move: pivot_rooting"); // trick so that kernel won't try to mount the root device when initrd exits if (scall((fd = open("/proc/sys/kernel/real-root-dev", O_WRONLY)) < 0, "open")) -- cgit v1.2.1