(→NFSv3) |
(→NFSv4) |
||
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* root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>] | * root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>] | ||
{{admin/note|mount nfsv4 share from <server-ip>:/<root-dir>. If no server-ip is given, use dhcp next_server. nfs-options can be appended with the prefix ":" or "," | {{admin/note|mount nfsv4 share from <server-ip>:/<root-dir>. If no server-ip is given, use dhcp next_server. nfs-options can be appended with the prefix ":" or ","}} | ||
* root=dhcp | * root=dhcp |
Revision as of 14:42, 2 July 2009
🔗 Dracut kernel command line parameters
🔗 Limitations
- Command line length: 2048
- dhcp root-path: 255
🔗 Configuration in initrd
- /conf/conf.d/*
🔗 Standard
- init=<path to real init>
- root=<path to blockdevice>
🔗 DHCP
- root=dhcp
🔗 NFSv3
- root=[<server-ip>:]<root-dir>[:<nfs-options>]
- root=dhcp
- root-path=<server-ip>:<root-dir>[,<nfs-options>]
- Deprecated root=/dev/nfs nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
🔗 NFSv4
- root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>]
- root=dhcp
🔗 iSCSI
- root=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname>::
{{admon/note|Protocol defaults to "6", LUN defaults to "0". If the "servername" field is provided by BOOTP or DHCP, then that field is used in conjunction with other associated fields to contact the boot server in the Boot stage (Section 7). However, if the "servername" field is not provided, then the "targetname" field is then used in the Discovery Service stage in conjunction with other associated fields. [RFC4173]
- root=??? iscsiroot=...::
- root=??? iscsi_initiator= iscsi_target_name= iscsi_target_ip= iscsi_target_port= iscsi_target_group= iscsi_username= iscsi_password= iscsi_in_username= iscsi_in_password=::
- root=??? iscsi_firmware::
🔗 NBD
- root=nbd:<server>:<port>[:<fstype>][:<mountopts>]
- root=dhcp
🔗 Network
- ip=[dhcp|on|any]
- ip=<interface>:[dhcp|on|any]
- ip=<client-IP-number>:<gateway-IP-number>:<netmask>:<client-hostname>:<interface>:[dhcp|on|any|]
🔗 Misc
- rdblacklist=<modulename>
Debug ¶
* rdinitdebug o set -x for the dracut shell * rdbreak=[pre-udev|pre-mount|mount|pre-pivot|] o drop the shell on defined breakpoint * rdudevinfo o set udev to loglevel info * rdudevdebug o set udev to loglevel debug * rdnetdebug o debug network scripts in dracut