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cosmos
Advisor
‎2021-07-15 06:18 PM

/etc/udev/rules.d/00-OS-XX.rules doesn't stick beyond 10 NICs

I'm renaming interfaces in a lab to represent VSX production for a gateway cluster with 18 interfaces. Following sk86121:

# cat /etc/udev/rules.d/00-OS-XX.rules_ORIGINAL
ID=="virtio0", NAME="eth0"
ID=="virtio1", NAME="eth1"
ID=="virtio2", NAME="eth2"
ID=="virtio3", NAME="eth3"
ID=="virtio4", NAME="eth4"
ID=="virtio5", NAME="eth5"
ID=="virtio6", NAME="eth6"
ID=="virtio7", NAME="eth7"
ID=="virtio8", NAME="eth8"
ID=="virtio9", NAME="eth9"

# cat /etc/udev/rules.d/00-OS-XX.rules
ID=="virtio0", NAME="Mgmt"
ID=="virtio1", NAME="eth1-01"
ID=="virtio2", NAME="eth1-02"
ID=="virtio3", NAME="eth1-03"
ID=="virtio4", NAME="eth1-04"
ID=="virtio5", NAME="eth1-05"
ID=="virtio6", NAME="eth1-06"
ID=="virtio7", NAME="eth1-07"
ID=="virtio8", NAME="eth1-08"
ID=="virtio9", NAME="eth2-01"
ID=="virtio10", NAME="eth2-02"
ID=="virtio11", NAME="eth2-03"
ID=="virtio12", NAME="eth2-04"
ID=="virtio13", NAME="eth3-01"
ID=="virtio14", NAME="eth3-02"
ID=="virtio15", NAME="eth3-03"
ID=="virtio16", NAME="eth3-04"
ID=="virtio17", NAME="Sync"

After reboot, all interfaces are available:

# ifconfig -a | grep Link
Mgmt Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:00
Sync Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:11
eth1-01 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:01
eth1-02 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:02
eth1-03 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:03
eth1-04 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:04
eth1-05 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:05
eth1-06 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:06
eth1-07 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:07
eth1-08 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:08
eth2-01 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:09
eth2-02 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0A
eth2-03 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0B
eth2-04 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0C
eth3-01 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0D
eth3-02 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0E
eth3-03 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0F
eth3-04 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:10
lo Link encap:Local Loopback

However, /etc/udev/rules.d/00-OS-XX.rules has been overwritten with 10 entries:

# cat /etc/udev/rules.d/00-OS-XX.rules
ID=="virtio0", NAME="Mgmt"
ID=="virtio1", NAME="eth1-01"
ID=="virtio2", NAME="eth1-02"
ID=="virtio3", NAME="eth1-03"
ID=="virtio4", NAME="eth1-04"
ID=="virtio5", NAME="eth1-05"
ID=="virtio6", NAME="eth1-06"
ID=="virtio7", NAME="eth1-07"
ID=="virtio8", NAME="eth1-08"
ID=="virtio9", NAME="eth2-01"

And the next time we boot the box only the first 10 interfaces have the correct (new) name:

# ifconfig -a | grep Link
Mgmt Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:00
eth1-01 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:01
eth1-02 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:02
eth1-03 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:03
eth1-04 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:04
eth1-05 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:05
eth1-06 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:06
eth1-07 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:07
eth1-08 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:08
eth2-01 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:09
eth3 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0F
eth4 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:11
eth5 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0E
eth7 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:10
eth10 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0A
eth11 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0B
eth12 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0C
eth13 Link encap:Ethernet HWaddr 0C:9A:43:3A:BD:0D
lo Link encap:Local Loopback

This is in both R77.30 and 80.40 (3.1 kernel).

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4 Replies
PhoneBoy
Admin
Admin
‎2021-07-15 07:51 PM

Technically, this is not supported on Check Point Appliances or VMs, at least according to an internal comment on sk69621.
It's only supported on physical Open Server appliances.

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cosmos
Advisor
‎2021-07-15 07:59 PM
In response to PhoneBoy

# system_info System Information
Open server

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PhoneBoy
Admin
Admin
‎2021-07-15 08:03 PM
In response to cosmos

Pretty sure virtio only shows up in a VM?
I can suggest is a TAC case here.
Or possibly changing the mode on the file so it can't get overwritten (using the immutable flag).

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cosmos
Advisor
‎2021-07-15 08:19 PM
In response to PhoneBoy

Oops yeah KVM/qemu. chattr +i works, but means we need a human at the console:

Mounting local filesystems: [ OK ]
mv: overwrite `/etc/udev/rules.d//00-OS-XX.rules', overriding mode 0644?

We're moving to bonds / vPCs on the new appliances, for all the right reasons 🙂

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