Commit Graph

17 Commits

Author SHA1 Message Date
Dave Young
fca70aadfd improve persistent name handling
For devices with filesystem, udev /dev/disk/by-uuid/* links are usually
reliable. But one exception is multipath devices, child and top layer
device may have same uuid.

As dm devices maintain /dev/mapper/* as persistent names, so converting to
/dev/mapper/* firstly then try by-uuid/* and by-id/*

Also because user know better what's the persistent name we just document well
to suggest user use persistent name in kdump.conf. it's suggested to
to use lvm or multipath canonical names or uuid/label.

Updated kdump.conf examples and related chunks in kexec-kdump-howto.txt
use lvm /dev/vg/<devname> in examples

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-10-11 09:43:30 +08:00
Dave Young
ffc5ece53b Resolves: bz808299
Copy comments from the bz:
In rhel7 onwards, we will require dump target filesystem to be mounted in first kernel so that kdump can make use of same mount options instead of trying to come up with its own mount options. This should make mounting that file system safer. Also it reduces complexity in kdump code.

That will mean one needs to put an entry for the dump file system in /etc/fstab
so that after reboot when kdump service starts, it can find the dump target and build initramfs instead of failing.
2012-08-31 10:05:37 +08:00
Dave Young
93e13c118b port force_rebuild kdump.conf option
Add force_rebuild option in kdump.conf

Some user need always force rebuild the dumprd, add an kdump.conf
option force_rebuild here. If force_rebuild is set to 1
kdump initrd will be rebuilt every time then the service starts.

Testing:
Tested below cases:
force_rebuild
force_rebuild 0
force_rebuild 1
force_rebuild 2

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-08-07 13:21:36 +08:00
Dave Young
b47c0915d2 refactor net option
Currently net options means either nfs or ssh dump.
Better to split these two into standalone options. That's more clear to user.

after the split, ssh dump need user specify "ssh user@host"
nfs dump need user specify "nfs host:nfsshare"

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-07-23 15:31:28 +08:00
dyoung@redhat.com
1b30666cac add blacklist option
For the "blacklist" here, it means prevent the kernel modules
from loading into kdump initrd, which is different from RHEL6.

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-22 15:38:42 +08:00
Dave Young
4e4a173698 Add kdump_post and kdump_pre support
Original patch is from Amerigo, but it has changed a lot:
remove multi dump
refreshed with latest git for the dump instruction function restructure
fixed the behavior of do_kdump_pre, if kdump_pre fails it will reboot
update the docs
check the existance and executable of kdump_pre/post files,
also check the timestamp of them for rebuilding.

refresh patch,
Address comments from vivek:
s/hush/bash in docs
fix the copy-paste error in kdump post error message
s/reboot\/halt/reboot in kexec-kdump-howto.txt

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-14 09:57:30 +08:00
Dave Young
2697669fa9 ssh core_collector fix
1. add core_collector filter support to ssh dump
2. scp can be specified in kdump.conf
3. error out if no '-F' with makedumpfile
4. add proper explanation and examples to kdump.conf[.5] and kexec-kdump-howto.txt.

v1->v2: add verify_core_collector function
v2->v3: optimize the code, remove local variable for default core_collector

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-14 09:56:10 +08:00
Dave Young
2aa51e665f core_collector doc basic fix
Update core_collector in kdump.conf[.5]:
1. accept <command> not limited to makedumpfile
2. add notes about default core_collector
3. add notes about flattened vmcore

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-11 10:57:53 +08:00
Dave Young
b814dcb097 kdump.conf add sshkey
Add sshkey info to kdump.conf and kdump.conf.5

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:24:19 +08:00
Dave Young
21e9e33e0b kdump.conf remove disk_timeout
disk_timeout should be handled by dracut. remove it from kdump.conf[.5]

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:24:14 +08:00
Dave Young
df18065508 kdump.conf.5 add default poweroff
Add missing poweroff to default options in kdump.conf.5

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:50 +08:00
Dave Young
7ffaad9b15 kdump.conf default shell fix
Default shell of kdump module is bash instead of msh, fix the doc

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:46 +08:00
Dave Young
3bab7bf251 kdump.conf default default action fix
If default action is not set kdump will by default dump to root fs
Fix kdump.conf[.5] about this issue

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:42 +08:00
Dave Young
d028b8e385 kdump.conf.5 remove module option
kernel module options is not implemented yet, remove them from kdump.conf.5

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:38 +08:00
Dave Young
5d0335485d kdump.conf remove kdump_pre/kdump_post
kdump_post and kdump_pre are not implemented, remove them from kdump.conf[.5]

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:34 +08:00
Dave Young
c146bafd6d kdump.conf: remove link_delay
Dracut and udev handles bringing up network, remove the legacy link_delay

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2012-06-06 16:22:25 +08:00
Neil Horman
66d844ee90 Resolves: bz 566135 2010-02-17 16:49:26 +00:00